Senior Backend Engineer at ThreatAware | London

About the RoleWe are seeking a talented Senior Backend Engineer to join our Research & Development team at ThreatAware. In this pivotal role, you will collaborate directly with our CTO to develop the next generation of our platform. You will empower security teams to create AI-driven workflows, automate critical decisions, and interact with their data in innovative ways. This position involves profound backend development tasks, including designing abstractions, prototyping agent-based patterns, and transforming visionary ideas into real-world systems. If you're passionate about pushing boundaries in AI and cybersecurity, this is the perfect opportunity for you.Why Choose ThreatAware?At ThreatAware, we provide security teams with a comprehensive source of truth for every device and tool within their organization. With over 150 integrations, our platform can be deployed in under 30 minutes, delivering real-time visibility across complete IT estates. Industries such as finance, legal, energy, and healthcare rely on us to identify what is secured and what isn't.We are now embarking on a larger initiative. Building on six years of precise cyber asset data, we are integrating AI capabilities to offer security teams new avenues for data interrogation, workflow automation, and proactive risk management. You will play a central role in bringing this vision to life.Your ResponsibilitiesAs a Senior Backend Engineer, you will:Design and develop the AI composition layer that drives the next chapter of ThreatAware.Architect backend systems that facilitate the dynamic integration of data sources, AI reasoning, and automated security actions.Create APIs, data models, and execution engines for complex, multi-step workflows, ensuring they are scalable, resilient, and observable.Prototype and validate agentic patterns, including multi-agent collaboration and hierarchical reasoning, utilizing LLMs.Ensure AI outputs are grounded in accurate cyber asset data by developing retrieval systems, validation checks, and confidence indicators.Incorporate security as a fundamental aspect of your work, focusing on authentication, authorization, audit logging, and data protection.What We Are Looking ForExtensive backend engineering experience in building large-scale, production systems with a strong emphasis on system design and architectural thinking.Proficient in Python, TypeScript, or similar languages, with a solid track record in designing APIs, databases, and event-driven systems.Hands-on experience with cloud infrastructure, preferably AWS, including serverless architectures, messaging, and containerized services.A strong interest in AI and LLMs, ideally with experience in integrating AI with backend systems or developing AI-native applications.

About the RoleWe are excited to announce an opening for a Senior Frontend Engineer who will take charge of the user interface layer of ThreatAware's dynamic platform. Your main responsibilities will include developing the dashboard, enhancing data visualization, and crafting interfaces for our innovative AI-powered features. You will be working with TypeScript using Angular and React, reporting directly to the Head of Engineering, and collaborating closely with our R&D teams to seamlessly integrate AI functionalities into our platform. If you have a passion for creating stunning interfaces, an eye for detail, and a desire to tackle complex UI challenges with significant real-world implications, this position is perfect for you.Why Join ThreatAware?At ThreatAware, we provide security teams with a comprehensive source of truth for every device and tool within their organization. With over 150 integrations, rapid deployment in under 30 minutes, and real-time visibility across entire IT infrastructures, we have earned the trust of sectors such as finance, legal, energy, and healthcare. We're on a mission to build something even more impactful. After six years of curating accurate cyber asset data, we are now integrating AI to offer new methods for security teams to analyze their data, automate workflows, and proactively manage risks before they escalate. In this role, you will design intuitive interfaces that enhance user experience.Your ResponsibilitiesTake ownership of the frontend that transforms intricate security data into clear insights.Design and develop the platform dashboard and AI workspace UI using TypeScript (Angular and React) — ensuring a data-rich, real-time experience used daily by enterprise security teams.Tackle challenging visualization problems: managing thousands of security events, device interconnections, and AI-driven insights without overwhelming users.Establish a robust component architecture, design systems, and frontend standards that evolve as the team and product expand.Collaborate closely with R&D to translate AI capabilities into user-friendly, polished interfaces.Partner with product and design teams to define and enhance the user experience, rather than just executing it.Mentor junior frontend engineers and elevate the quality of frontend development within the team.Qualifications We SeekExtensive experience with TypeScript, Angular, and React, with a deep understanding of component architecture, state management, and performance optimization.A strong aesthetic sensibility, with a commitment to creating beautiful interfaces and a keen awareness of modern design trends, paying close attention to the details that contribute to a polished product.Proven track record in building data-intensive, high-performance web applications, ideally those that involve real-time data or complex visualizations.Ability to work in a collaborative environment and effectively communicate ideas and solutions.Prior experience in mentoring and guiding junior team members is a plus.

About the RoleWe are seeking a talented Full Stack Web Engineer to take ownership of ThreatAware's digital presence. As a key member of the Marketing team, you will play an instrumental role in shaping our website, landing pages, conversion funnels, and web-based tools. You have a passion for creating fast, visually stunning, and conversion-optimized web experiences, caring for every pixel and millisecond. If you thrive at the intersection of engineering and marketing and want to make a direct impact on how a leading cybersecurity brand is represented online, this opportunity is for you.Why Join ThreatAware?At ThreatAware, we provide security teams with a comprehensive source of truth for every device and tool within their organization. With over 150 integrations, deployment in under 30 minutes, and real-time visibility across entire IT estates, we are trusted by sectors like finance, legal, energy, and healthcare to understand their security posture.As we scale new heights, we are leveraging six years of precise cyber asset data combined with AI to revolutionize how security teams interrogate their data, automate workflows, and proactively manage risks before they escalate. You will craft the web experiences that narrate this journey and convert visitors into loyal customers.Your ResponsibilitiesTake charge of the technical aspects of ThreatAware's online presence.Develop and maintain a high-performance, secure, and accessible marketing website along with high-converting landing pages for demand generation campaigns.Implement and oversee analytics and tracking systems (GA4, HubSpot) to measure performance, conduct A/B testing, and optimize based on insights.Create interactive web tools, resource hubs, and engaging experiences that foster visitor interaction and conversion.Collaborate closely with the Brand & Creative Lead and the Demand Generation team to bring campaigns and product narratives to life online.What We Are Looking ForProficiency in TypeScript — you will be using it daily, so it should feel second nature.A keen eye for design and detail. You have experience building responsive, accessible, and aesthetically pleasing web experiences.Hands-on experience with analytics: GA4 implementation, HubSpot integration, conversion tracking, and A/B testing.Familiarity with CMS platforms, backend services, APIs, and serverless architecture.Bonus: Experience with Next.js and React, or a background in product-led growth web experiences.

About the RoleWe are seeking a Senior Security Solutions Expert to leverage your extensive knowledge in our innovative AI-powered security platform. In this role, you will develop solutions that address genuine security challenges, demonstrating their value to both prospects and customers. Positioned within the Customer Enablement team, you will collaborate across product, security, and customer success to enhance the user experience of security teams utilizing AI.Why ThreatAware?At ThreatAware, we provide security teams with a unified view of their technology landscape. With over 150 integrations and rapid deployment in under 30 minutes, we ensure real-time insights across entire IT environments. Our clients, spanning finance, legal, energy, and healthcare sectors, rely on us to identify their security posture.We are embarking on an ambitious journey to integrate AI with six years of accurate cyber asset data, offering security teams innovative ways to analyze their data, automate processes, and proactively manage risks. You will be the catalyst in transforming this potential into actionable, effective security solutions.Your ResponsibilitiesUtilize your security expertise to create and implement indispensable platform solutions.Design and develop impactful solutions within the AI-driven workspace, tackling real security issues from risk prioritization to automated remediation workflows.Demonstrate and present these solutions to prospects and customers, illustrating how ThreatAware effectively addresses their daily security challenges.Advocate for security practitioners within product development—your insights will influence our design and implementation strategies.Stay informed on the security landscape, including emerging threats, industry trends, compliance requirements, and operational practices within security teams.Collaborate with Sales, Product, and Customer Success teams to ensure impactful solutions that provide real value to customers.QualificationsExtensive experience in cybersecurity—demonstrated work in security operations, risk management, or security architecture, with a solid understanding of security team dynamics.Proven ability to translate domain expertise into practical solutions that resonate with both security practitioners and leaders.Exceptional presentation and communication skills—equally adept in customer workshops and product strategy discussions.A strong curiosity about the evolving security landscape, with a commitment to continuous learning and improvement.

About the RoleWe are seeking a dynamic DevOps Manager to spearhead the team responsible for ensuring the seamless operation and delivery of ThreatAware's platform. In this pivotal role, you will manage our AWS infrastructure, oversee CI/CD pipelines, enhance observability, and uphold platform reliability while redefining the developer workflow from start to finish, utilizing AI to optimize each phase. You will report directly to the CTO. If you view infrastructure as a strategic asset rather than merely a cost center, we want to hear from you.Why Join ThreatAware?At ThreatAware, we empower security teams with a unified source of truth for every device and tool within their organization. With over 150 integrations and the capability to deploy in under 30 minutes, we provide real-time visibility across entire IT infrastructures. Our clients span finance, legal, energy, and healthcare sectors — they rely on us to clarify what is protected and what requires attention.We are on a journey to create something even larger. With six years of comprehensive cyber asset data, we are integrating AI to develop innovative methods for security teams to analyze their data, automate workflows, and proactively manage risks. Your infrastructural leadership will be crucial in making this vision a reality.Your ResponsibilitiesLead the infrastructure that enables our product team to deliver quickly and confidently.Cultivate and expand the DevOps team, including engineers and a security specialist. Establish technical direction, recruit talented individuals, and foster career development.Formulate AWS infrastructure strategies: multi-tenant architecture, container orchestration, disaster recovery, and cost optimization.Define and continually enhance the developer workflow. Develop tooling, observability, and automation that allows engineers to concentrate on coding, eliminating friction.Innovate AI-assisted DevOps processes — investigate and apply AI solutions to streamline builds, deployments, monitoring, and incident responses.Champion CI/CD excellence: ensure rapid builds, secure deployments, quality control, and empower product teams to release independently.Manage cloud security posture: Identity and Access Management (IAM), secrets management, compliance, and vulnerability scanning. As a security company, our infrastructure must exemplify these principles.QualificationsProven experience in building and leading a DevOps team. You possess the skills to hire, mentor, and set a clear direction.Extensive AWS expertise — you have designed production infrastructure, not merely maintained it.Strong opinions on Infrastructure as Code (Pulumi preferred), CI/CD, and containerization.You strike a balance between operational rigor and velocity, knowing when to accelerate and when to decelerate.Experience in high-security environments, ensuring compliance and best practices.

About the RoleThreatAware is seeking a dynamic Operations Manager to facilitate our growth while maintaining the agility and transparency that have driven our success thus far. Collaborating closely with the CEO, you will be instrumental in transforming strategic objectives into actionable plans, ensuring that cross-departmental initiatives progress smoothly, and providing the leadership team with the insights necessary for swift and informed decision-making.Why Join ThreatAware?At ThreatAware, we empower security teams with a comprehensive platform that serves as the definitive source of truth for every device and tool within their organization. Our solutions can be deployed in under 30 minutes, boasting over 150 integrations and requiring no agents. Statistics reveal that, on average, 10% of network devices remain undetected, while 30% of security controls are either missing or malfunctioning. With the recent injection of $25M from One Peak in February 2026, we are poised to expand our operations in North America and unveil our AI-powered security workspace, which will enable security teams to tailor their tools and automations based on six years of the most accurate cyber asset data available in the industry.Your ResponsibilitiesAssess the operational needs of the business at this stage and implement necessary structures, including appropriate cadences, metrics, and decision-making forums.Manage operational tasks that would typically fall to the CEO, such as office management, supplier relationships, facilities, and various ad-hoc projects, allowing leadership to concentrate on customer and product priorities.Develop the visibility required for the leadership team to manage the business with confidence, incorporating KPIs, dashboards, and quarterly planning.Collaborate with Sales, Product, Finance, and People teams to ensure cross-functional priorities are progressing, identify and address blockers early, and facilitate alignment among team members.Lead ad-hoc strategic projects as they arise, whether it’s assessing new office spaces or establishing operational processes that are currently lacking.Identify areas where the business is losing efficiency or momentum and implement solutions. Design processes that are effective and sustainable as we scale.Address ambiguous operational challenges that lack a clear ownership and provide clarity to these issues.What We SeekA minimum of 5 years’ experience in operations, strategy, consulting, or a Chief of Staff role, preferably within a high-growth tech or SaaS environment.

About the RoleWe are seeking a dynamic Revenue Operations Manager to establish essential reporting, forecasting, and process frameworks that will enable ThreatAware's sales team to grow efficiently. You will manage HubSpot comprehensively, overseeing the CRM, data integrity, and insightful reporting while crafting an operational rhythm that propels our pipeline forward. If you are a data enthusiast with a systems-oriented mindset and take pride in enhancing organizational productivity, this opportunity is tailored for you.Why Choose ThreatAware?At ThreatAware, we empower security teams with a centralized source of truth for every device and tool in their organization. With over 150 integrations, our system can be deployed in under 30 minutes, providing real-time visibility across IT environments. Our reputation spans across finance, legal, energy, and healthcare sectors, where clients trust us to safeguard their digital assets.We are on the verge of a significant expansion, leveraging six years of precise cyber asset data and integrating AI to offer innovative methods for security teams to analyze their data, automate workflows, and proactively manage risks. As our product evolves, our commercial operations need to scale accordingly—this is where your expertise comes into play.Your ResponsibilitiesEstablish the operational foundation for a rapidly growing sales organization.Take full ownership of HubSpot: pipeline configuration, workflow automation, data quality, integrations, and user management. Ensure it becomes the trusted system for all.Create dashboards and reports that reveal critical insights, including pipeline stages, forecast accuracy, win/loss ratios, and expansion metrics.Design and execute the forecasting process, including monthly and quarterly reviews, variance analysis, and pipeline assessments that uphold team accountability.Collaborate across departments—Sales, Marketing, Finance, and Product—to align on lead scoring, revenue modeling, and pricing governance.Continuously document and refine the sales process, ensuring pipeline hygiene, deal stage discipline, and scalable playbooks as the organization grows.QualificationsA passion for data; you excel in analyzing numbers, identifying anomalies, and producing reports that the entire organization relies on.Comprehensive experience with HubSpot—customization, workflows, reporting, and integrations. You are the go-to expert.Demonstrated RevOps or Sales Ops experience in a B2B SaaS environment, with a track record of building robust forecasting and reporting systems.Ability to clearly convey data insights to non-technical stakeholders, including Sales, Finance, and Leadership, earning their trust in your analyses.

About the RoleWe are seeking a skilled DevOps Security Engineer to integrate security at every level of our infrastructure and deployment pipeline. Your responsibilities will include cloud security, vulnerability management, secrets management, and CI/CD hardening—ensuring that security is a core foundation rather than an afterthought. Reporting to the DevOps Manager, you will collaborate closely with our engineering team. If you believe that security should enhance speed rather than hinder it, this is the perfect role for you.Why ThreatAware?At ThreatAware, we empower security teams with a single source of truth for all devices and tools within their organizations. With over 150 integrations, our platform deploys in under 30 minutes, providing real-time visibility across entire IT estates. Trusted by finance, legal, energy, and healthcare sectors, we are now expanding our capabilities. With six years of precise cyber asset data, we are layering AI to innovate how security teams interact with their data, automate workflows, and proactively manage risks before they escalate. Your role will be critical in establishing secure foundations for this growth.Your ResponsibilitiesDesign and implement secure-by-default infrastructure that enables engineers to deploy confidently.Establish and enforce AWS security best practices: IAM, VPC hardening, encryption, and least-privilege access across all environments.Integrate security scanning into CI/CD pipelines, including static analysis, dependency scanning, container image scanning, and artifact integrity checks.Design and maintain a secrets management architecture, ensuring zero hardcoded credentials across the codebase.Support incident response efforts by investigating security events, containing threats, conducting root-cause analysis, and refining runbooks.Build and maintain observability across infrastructure and security through monitoring, alerting, and dashboards that highlight issues before they escalate.Promote a security-focused culture within the engineering team by delivering training, creating guardrails, and simplifying the process for developers to write secure code.What We Are Looking ForProven experience in DevSecOps or infrastructure security with practical expertise in AWS (IAM, VPC, Config).In-depth knowledge of CI/CD security, container security, and infrastructure-as-code security practices.Proficiency in TypeScript and/or PowerShell for automation.Experience with vulnerability scanning, secrets management tools, and compliance frameworks.Strong analytical and problem-solving skills, with a passion for security.

About the RoleWe are seeking a Senior Quality Assurance (QA) Manager to establish and elevate product quality standards from the ground up. In this pivotal role, you will craft a comprehensive testing strategy, develop robust automation frameworks, define release standards, and implement processes that empower engineers to deliver swiftly while maintaining quality. Reporting directly to the Head of Engineering, you will collaborate across our entire product suite. If you are passionate about quality and recognize the importance of speed, this is the perfect opportunity for you.Why Choose ThreatAware?At ThreatAware, we provide security teams with a unified source of truth for every device and tool in their organization. With over 150 integrations, we ensure deployment in under 30 minutes and offer real-time visibility across entire IT environments. Trusted by sectors such as finance, legal, energy, and healthcare, we are committed to showcasing what is protected and what is not.We are currently embarking on an ambitious project to enhance our offerings. With six years of accurate cyber asset data, we are integrating AI technology to create innovative solutions for security teams, allowing them to analyze their data, automate workflows, and proactively manage risks. As a Senior QA Manager, you will play a critical role in ensuring that all developments meet the stringent standards our enterprise clients expect.Your ResponsibilitiesYou will take ownership of quality across our entire product range as we scale the engineering organization.Design and implement scalable test automation frameworks for backend (C#/.NET), frontend (TypeScript), and API integrations.Establish quality standards, release gates, and acceptance criteria that harmonize speed and reliability.Integrate quality into the development lifecycle through continuous testing in CI/CD, code review standards, and testing best practices.Develop performance and load testing protocols to ensure our platform can handle enterprise-scale demands seamlessly.Guide and mentor engineers on testing methodologies, fostering a culture where quality is a collective responsibility.QualificationsExtensive experience in QA and test automation within B2B SaaS or enterprise software, with a proven track record of developing frameworks from scratch.Proficient programming skills in C#, Python, TypeScript, or similar languages—demonstrating hands-on automation expertise.Familiarity with Playwright or similar end-to-end testing frameworks.In-depth understanding of testing methodologies including unit, integration, end-to-end, performance, and security testing.Experience in designing test environments, managing CI/CD pipeline integration, and establishing quality metrics.A clear commitment to promoting quality across all levels of the engineering team.

Join Aircall, a revolutionary unicorn in the AI-powered customer communications sphere, trusted by over 22,000 companies globally to enhance revenue, expedite issue resolution, and empower customer-facing teams. We are transforming the landscape of customer communications by integrating voice, SMS, WhatsApp, and AI into a unified workspace.Our growth is driven by a straightforward principle: to enable teams to work smarter, not harder. Our AI Voice Agent automates routine calls, while AI Assist simplifies post-call tasks, and AI Assist Pro provides real-time insights, allowing individuals to excel in their roles. This synergy results in increased revenue, quicker resolutions, and scalable teams.Headquartered in Paris, with a solid presence in North America anchored in Seattle, Aircall also has teams in vibrant cities such as Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product is beloved by customers, and we are rapidly scaling, supported by top-tier investors and continuous AI advancements across multiple product lines.At Aircall, you'll become part of a dynamic company. We are ambitious, focused on product development, and execution-oriented, with a clear impact, swift decision-making, and genuine growth opportunities.Our Work Culture at Aircall: We prioritize customer satisfaction, leverage data for decision-making, and are dedicated to delivering significant outcomes. We cherish ownership, continuous improvement, and thoughtful agility. If you thrive in a collaborative, fast-paced environment where trust and impact are essential, you will thrive here.Position Overview:As a Senior Backend Software Engineer, you will take charge of designing, developing, deploying, and maintaining essential features that enhance customer value on our voice platform.You will be expected to advocate for best practices, mentor team members, and contribute to the broader Engineering community as part of your daily responsibilities.Quality, excellence, and agility are at the core of our delivery process, and you will play a pivotal role in elevating these standards.Utilizing a diverse array of backend technologies tailored to specific needs, all hosted on AWS, we create resilient services that deliver added value on top of voice while fully integrating with our customers' critical business tools (CRM, Helpdesk, E-Commerce, etc.).

About 9fin9fin is a cutting-edge AI platform revolutionizing the global debt markets, which represent the largest asset class exceeding $145 trillion.The landscape of debt markets is extensive, global, and essential, yet it often relies on disjointed data, PDFs, and manual processes. 9fin transforms this outdated infrastructure by providing a unified platform that consolidates proprietary credit data, in-depth analysis, and efficient workflows across international markets.Currently, 9fin empowers over 300 prestigious institutions worldwide, including leading banks, asset managers, private equity firms, law firms, and consulting advisors. The company is experiencing rapid growth, particularly in the US, with exceptional retention rates driven by robust workflow adoption.We are at a pivotal moment. With a validated product-market fit and strong global demand, 9fin is propelling towards becoming the definitive platform for debt markets globally.What You'll Work OnAs a Senior Backend Engineer on our Structured Credit team, you will contribute to the development of our market-leading CLO product and assist in the launch of a new vertical.Our team is dedicated to making a significant impact, leveraging technology to create value for the business. While we have overarching business goals, we enjoy the autonomy to define our team objectives and determine our success metrics. We uphold accountability and proactive behaviors such as ownership.Lead projects within a cross-functional team by defining and designing systems, building proof of concepts, and delivering new service functionalities—including APIs, data processing, and automation—while collaborating with Product and Clients.Engage in backend development and engineering primarily on the services and web applications hosted on the 9fin platform.Play a crucial role within project teams as a senior individual contributor, conducting code reviews, mentoring fellow developers, and participating in early research and experimentation with new technologies to provide insights for new features and products.Continuously enhance the 9fin codebase by seizing opportunities to automate, refactor, and document processes when it has the most significant impact.Work across diverse web platforms involving complex financial data modeling, intricate access control logic, environmental data capture, integration of ML/AI prediction services, and data visualization.

Join commercetools as a Senior Backend Engineer, where you will play a pivotal role in shaping innovative backend solutions using TypeScript. Collaborate with cross-functional teams to create scalable and resilient microservices that empower our clients to deliver exceptional digital commerce experiences.

About the CompanyAffinidi is a pioneering technology firm focused on reimagining data ownership. We empower both businesses and individuals to take control of their data, providing a holistic approach to managing their digital identity while prioritizing privacy and security.Our innovative technology facilitates decentralized digital identity solutions, ensuring that everyone has the right to own and govern their data. We are dedicated to establishing a trustworthy ecosystem for digital credentials that allows secure data and service exchange across various sectors and borders. About the Role: We are seeking a solution-driven Senior Backend Engineer who possesses substantial expertise in Rust. The ideal candidate will have a track record of delivering robust backend solutions and is eager to contribute to our mission of transforming digital identity.

Join Our Dynamic Team at XapienAt Xapien, we empower businesses to truly understand their connections with suppliers, investors, partners, and third parties. Our innovative approach merges speed, scale, and precision, utilizing advanced AI technology.Since our inception in 2018, we've evolved from a deep-tech startup to a key player in AI-driven due diligence and risk intelligence. The year 2024 marked a significant milestone, with the successful closure of a $10M Series A funding round and accolades in the Chartis RiskTech100® and Everest Group’s Leading 50™. Our expansion has led to a broader product range, new market entries, and an expanding customer base.Our Growth TrajectoryWe're witnessing accelerated demand across various industries, especially in wealth management, financial services, and supply chain onboarding, extending our reach beyond the UK to customers in the Middle East, Asia, and Oceania.Why Now is the Perfect Time to Join UsThis position is not just another role; it’s a chance to influence the future of the due diligence sector with a market-leading product that organizations worldwide trust. Whether your expertise lies in marketing, communications, sales, or finance, your contributions will be vital in driving growth, enhancing credibility, and connecting our product with a swiftly changing market.As we scale rapidly, with an increasing number of customers and product releases, we face larger regulatory and market challenges. The expectation for real-time insights in due diligence is higher than ever. Your role will go beyond routine tasks; you will be shaping strategy, refining processes, and positioning a brand that is redefining trust and transparency.If you're passionate about learning, innovating, and making a meaningful impact, now is the time to join Xapien.The RoleWe are seeking a skilled Senior Backend Engineer to take on a pivotal technical leadership role within our engineering team. You will tackle our most complex technical challenges, take ownership of critical components within our platform’s architecture, and help guide our technical direction to ensure we continue to stay ahead in the industry.

About UsAre you ready to embark on a thrilling challenge?At XYZ Reality, a dynamic and award-winning Series-A startup, we're on a rapid ascent toward our next funding milestone. Our vision is to revolutionize the construction sector by enhancing our platform's features, performance, and scalability.We thrive in a fast-paced, multi-disciplinary environment, engaging in various domains such as cloud development, electronics, embedded software/hardware, mechanical design/manufacturing, AI & computer vision, and data science—all contributing to our innovative BIM Platform.To propel this mission forward, we are in search of a Backend Engineer with extensive Node.js experience to assist in our transition from Java to Node.js and develop high-performance, scalable backend services. You will collaborate closely with our API development, client applications, and data pipeline teams to design and deliver robust, efficient solutions.Our office is situated in central London, just a short stroll from Angel Station.

We are seeking an experienced and passionate Senior Backend Engineer specializing in TypeScript to join our dynamic software engineering team at onrunning. In this pivotal role, you will lead the design and development of robust backend systems that power our innovative applications. You will collaborate closely with cross-functional teams to deliver high-quality solutions that meet the needs of our users. If you have a strong background in backend development, a love for building scalable systems, and a desire to drive technical excellence, we want to hear from you!

Join Our Vision! At Uncapped, we empower ambitious founders to scale their businesses through innovative financing solutions. We champion curiosity, continuous improvement, and impactful problem-solving.Technologies You Will Work With Core Technologies: Java 21, Spring Boot/Cloud 3.3Infrastructure: GCP, KubernetesDatabase Technologies: SQL/NoSQL (chosen per use case)Your Contributions Design and develop secure microservices tailored for financial systems.Take ownership of services throughout their lifecycle (design → deploy → monitor).Enhance code quality through automation and modern practices (CI/CD pipelines in under 15 minutes).Stay at the forefront of technology and share your insights with the team.Excel within a Kanban-driven team that values effective communication over meetings.Why Choose Uncapped?Be part of a fintech solution trusted by thousands of businesses.Contribute to a product that you can help shape and significantly impact.Supported by leading venture capitalists like LakeStar and SeedCamp.

Affinidi develops technology that helps people and organizations manage their data with greater control. The team designs digital identity tools that keep privacy and security at the forefront. Their work emphasizes decentralized approaches, aiming to make digital credentials both secure and accessible across industries and borders. Role overview The Senior Backend Engineer (Rust) position focuses on building and refining backend systems for privacy-first digital identity products. This London-based role plays a key part in supporting secure, reliable services that underpin Affinidi's core offerings. What you will do Develop and maintain backend services using Rust Create technical solutions that enhance efficiency and reliability Support the ongoing development of decentralized identity platforms Location London, England, United Kingdom

Join Apron as a Senior Software Engineer - BackendAt Apron, our mission is to empower small and medium-sized businesses by ensuring their success. We understand that cash flow challenges often stem from the pressure of demand payments on business owners, which can hinder their ability to meet these obligations.We are bridging this gap by modernizing and simplifying the payment processing experience: from capturing invoices to issuing expense cards, and facilitating transactions—all in one seamless platform.As a rapidly growing company, we have expanded our team to approximately 100 talented individuals across the UK, Germany, Spain, and beyond. Backed by notable investors such as Index Ventures, Bessemer Venture Partners, Zinal Grow, and Tony Fadell, we have successfully raised $50 million to fuel our growth.Our Engineering CultureAt Apron, engineers play a pivotal role in our operations. Here's what you can expect:Customer-Centric Development: We utilize cutting-edge technology to create products that genuinely enhance our customers' lives.Ownership of Projects: From planning to execution, we take full responsibility for our work.Complex Financial Challenges: We embrace the intricacies of finance, navigating complex business logic and ensuring every detail is accounted for. Precision and attention to detail are paramount in creating a reliable product.Pride in Our Code: We prioritize building fast, secure, and scalable code that can grow with us.Integration of AI Tools: We leverage the best available technologies to ensure our product is genuinely beneficial.Your ResponsibilitiesWe are looking to expand our Card team, which has just launched. As a Senior Software Engineer, you will:Collaborate Across Teams: Work closely with Frontend Engineers, Product Managers, and Designers to develop innovative features.Design Robust Systems: Develop core financial integrations to ensure the security of customer funds and expedite transactions.Drive Innovation: Share your expertise with the team to foster innovation and proactively suggest improvements.