Senior Back-End Software Engineer at Marcura | London

About Marcura:Marcura stands at the forefront of maritime technology and operations, playing a pivotal role in facilitating nearly one-third of the global seaborne commodity trade. Our innovative platforms, which encompass software solutions, data intelligence, and payment processing, are integral to the digital transformation journey within the maritime sector. We are currently on the lookout for a Senior Back-End Software Engineer to join our dynamic and impactful team, contributing to the success of one of the industry's most innovative organizations.Role Overview:In the position of Senior Back-End Software Engineer, you will take charge of the architecture, design, development, and testing of scalable Compliance and RegTech solutions. Your mission will be to construct and maintain secure, high-performance applications utilizing Django REST Framework and Python (backend) to enhance counterparty onboarding, risk assessment, and regulatory screening processes.Your responsibilities will include overseeing code and tests to ensure the robustness of APIs, seamless integrations, and adherence to industry standards such as GDPR and ISO 27001. You will champion secure coding practices, implement embedded testing (shift-left), and drive automation efforts, collaborating closely with product managers, UX designers, and compliance specialists to ensure alignment between technology and business objectives. Staying abreast of industry trends, you will introduce innovative solutions in full-stack development, AI, and compliance automation.Key Responsibilities:Develop and manage APIs that facilitate onboarding, screening, and entity intelligence, ensuring optimal performance, version management, and traceability.Enhance product capabilities by integrating new data-driven features (such as search, risk scoring, relationship mapping) while maintaining system stability.Incorporate ElasticSearch for superior query performance and analytics on a large scale.Collaborate with data and other platforms/services to support risk assessment and compliance automation.Work in close partnership with product teams, UX designers, and compliance experts to ensure technical solutions align with business strategies.Adopt a shift-left testing methodology, embedding unit, integration, and end-to-end tests within the development lifecycle, minimizing dependence on external QA resources.Implement industry best practices for secure coding, data privacy (GDPR), and compliance automation, ensuring regulatory adherence.Ensure security, scalability, and maintainability of full-stack applications.Establish best practices for data modeling, ETL processes, and regulatory compliance (GDPR, ISO 27001) in data-centric applications to guarantee data integrity, consistency, and security.Stay updated on emerging technologies in full-stack development, AI, and compliance automation, proposing innovative ideas to elevate products and processes.

Back End Engineer - New VenturesJoin us in a hybrid capacity at iwoca, located in London, United Kingdom (minimum one day in the office per week).About the Role:As a Back End Engineer on the Credit Compass team, you will play a pivotal role in designing and developing scalable, high-performance services that enhance small businesses' understanding of their credit health. You will work with rich data sources, including Open Banking and credit reports, to provide actionable insights that empower business owners.About iwoca:At iwoca, we recognize that small businesses need fast and flexible finance solutions. Our cutting-edge technology, data science, and exceptional customer service have already aided over 100,000 businesses with more than £4 billion in funding. We are on a mission to empower one million SMEs with the financial tools they need to thrive, making a lasting impact on the communities they serve.The Team:Join a dynamic and collaborative Credit Compass team dedicated to transforming complex financial data into clear, actionable insights. Our cross-functional group of engineers, product managers, designers, and analysts work closely to deliver outstanding features that enhance our customers' experience.

Join CUR8 as a Back-end EngineerAt CUR8, we are on a transformative mission to reshape the carbon removal landscape. With the pressing need to eliminate 5-10 Gigatonnes of CO₂ by 2050, our innovative platform empowers organizations worldwide to meet their carbon neutrality goals.As part of our dedicated Risk Engine squad, you will play a pivotal role in evaluating and refining high-quality carbon removal projects, ensuring our clients have access to reliable insights and data.Your collaboration with our Lead Software Engineer, Senior AI Engineer, and scientists will be vital in converting scientific criteria into robust, scalable software solutions.Key ResponsibilitiesDevelop Application Logic: Craft the code that manages data flow, from document ingestion to model result handling.Translate Science into Code: Work closely with Carbon Scientists to understand project criteria and develop corresponding code logic.Manage Unstructured Data: Create systems that can transform complex real-world inputs into structured, actionable data.Deliver Insights: Design APIs and data structures that present findings to customers in an intuitive user interface.Our Technology StackCore Back-end: GoData Stack: PythonDatabase: PostgreSQLInfrastructure: Google Cloud Platform, TerraformAI Tools: Claude, Gemini, GPTWhile expertise in both Go and Python is not essential, a willingness to engage with both is necessary.Your Technical ExpertiseExperience: A minimum of 2 years in building and maintaining backend software.Language Proficiency: Comfortable with a statically typed language (preferably Go).

Fraud Alert:Beware of scammers creating fake job listings on other platforms. To ensure your application is considered, please submit your application exclusively through Sensor Tower's official website or through postings directly associated with Sensor Tower on platforms like LinkedIn, Indeed, BuiltIn, or Hackajob. Sensor Tower will never request payment, credit card, or bank account details as part of the application process. All official communications from Sensor Tower will come from email addresses ending in sensortower.com. Interviews will be conducted via phone or Zoom, and we will not transition to other email services or texts. If you encounter any issues, please reach out to us. Remember to attach your resume when applying.Notice to Recruitment Agencies:Sensor Tower does not accept unsolicited resumes from third-party agencies. Please refrain from sending resumes to our job alias, Sensor Tower employees, or any other company location. We will not be liable for any fees related to unsolicited resumes and will not pay any agency or company without a signed agreement.About This Role:Are you passionate about developing products that leverage real-world, large-scale data? At Sensor Tower, we process vast amounts of data to provide insights for thousands of customers. We are seeking enthusiastic, early-career engineers eager to enhance their skills while collaborating with us to create fast, reliable systems that simplify data access and understanding.You will collaborate closely with seasoned engineers, contribute to impactful features from day one, and gain insights into the design, construction, and optimization of large-scale systems in a production environment.If you thrive on learning, problem-solving, and delivering real software that users depend on, we would love to hear from you. We have a strong history of rapidly advancing talented juniors, and this position offers a unique opportunity to work closely with senior leadership.Our Engineering Culture:We believe that "Simplicity is a prerequisite for reliability." We seek engineers who resonate with our core values:- Simplicity: We avoid unnecessary complexity, favoring existing tools and straightforward solutions over trendy new technologies.- Quality: We write code that is enjoyable to read, understanding that code is often read more than it is written. We do not cut corners and strive for high standards before deployment.

Fraud Alert:At Sensor Tower, we prioritize your safety during the application process. To be considered for a position, please apply exclusively through our official website or directly through recognized platforms like LinkedIn, Indeed, BuiltIn, or Hackajob. We will never request payment or sensitive information such as credit card or bank details for job applications. All communications from us will originate from email addresses ending with sensortower.com. Interviews will be conducted via phone or Zoom, and no communication will occur through unverified email or text. If you encounter any suspicious activity, please let us know. Remember to attach your resume when applying.Recruitment Agency Notice:Sensor Tower does not accept unsolicited resumes from third-party recruitment agencies. Please refrain from sending resumes to our job alias, employees, or any other company locations. Sensor Tower will not be liable for any fees related to unsolicited resumes and will only pay agencies with a signed agreement.Role Overview:We are on the lookout for a talented Back End Engineer to join our team. You will play a crucial role in scaling our database operations and managing vast amounts of data (up to tens of terabytes). Your creativity and technical skills will be essential in deriving valuable insights and data.As a member of the Sensor Tower engineering team, you will contribute to developing top-notch products and features that enhance our user experience. In our agile and flat organizational structure, your input will directly influence the direction and execution of our projects.A Day in the Life:Interviewee: Engineering Team Lead - Sasha YelkovenkaDescribe a typical day as a Software Engineer.My role involves working extensively with large datasets, which are continuously growing. My primary responsibility is ensuring our customers can access this data swiftly and providing them with user-friendly tools for data utilization. I appreciate the culture of ownership at Sensor Tower.How do you collaborate with your remote team?We foster an excellent remote work environment, frequently collaborating via Zoom to leverage each other's expertise for improved outcomes.

Senior Back End Engineer - German MarketJoin us in a hybrid role based in London or work remotely from anywhere in the UK.About the RoleWe are seeking a skilled Senior Back End Engineer to develop and enhance the systems that drive iwoca's operations in the German market. You will collaborate within a dynamic, cross-functional engineering team tasked with building proprietary tools such as our CRM system, utilized daily by our German operations team. You will spearhead significant projects from inception to delivery, leveraging your technical expertise to enhance our services for small businesses while fostering the growth of the overall engineering team.Company OverviewAt iwoca, we understand the fast-paced world of small businesses. Opportunities can arise unexpectedly, and cash flow challenges can emerge overnight. That's why we offer flexible and responsive financial solutions tailored to the needs of SMEs. Our advanced technology, data science, and exceptional customer service empower business owners to act swiftly and confidently when it matters most. With over 100,000 businesses supported and more than £4 billion in funding provided, our dedicated team is on a mission to help one million SMEs thrive, making a lasting impact on their communities and economies.The TeamOur DE Tech team is an expanding group of engineers divided into three cross-functional teams. Together, we build and maintain essential systems—including underwriting, notifications, and account management tools—that empower over 300 colleagues in sales, credit, and collections. As our German business scales, these teams are innovating beyond incremental improvements to fundamentally enhance operational workflows, ensuring that we can respond quickly and reliably to the needs of our customers.Your ContributionsIn this role, you will engineer systems vital to both internal and external teams in delivering outstanding customer service. You will oversee engineering processes from problem identification to implementation, witnessing the direct impact of your work in everyday applications. Your designs will underpin back-end services that facilitate core operational tasks, including customer communications and underwriting.

At Solve Intelligence, we are not merely developing features; we are shaping the foundational infrastructure that aims to revolutionize the global legal and IP landscape. The Role: Full-Stack Engineer (Back-End Focus)We seek an exceptionally skilled engineer to assist in the rapid development of both the front-end and back-end of our innovative products. You will join a lean, highly talented engineering team based in London.Key Responsibilities:Foundation Scaling: Design and construct robust and scalable backend systems from the ground up to cater to a vast global market.User-Centric UI: Collaborate on planning and refining our React-based front-end to ensure our sophisticated AI systems are user-friendly and widely embraced.Product Development: Work alongside the founders to derive insights from customer feedback and translate them into actionable technical solutions.Culture Building: Contribute to establishing the engineering culture and play a critical role in building a top-tier technical team. About Solve IntelligenceWe are a rapidly growing startup redefining how IP professionals operate.Growth: Enjoying a 20-30% month-over-month revenue increase while serving over 100 IP teams (ranging from DLA Piper to premier tech boutiques).Proven Efficiency: Users report efficiency improvements ranging from 50-90%.Investment: Recently highlighted in Sifted following our $40M Series B funding round, bringing our total funding to $55M from notable investors including Y Combinator, 20VC, Visionaries, and others. Your TeamYou will collaborate directly with a founding team comprising AI PhDs and systems specialists:

About Methods Business and Digital Technology Limited Methods Business and Digital Technology Limited is an established IT services consultancy based in the UK, with more than 30 years of experience. The company works closely with central government departments and agencies to improve public sector operations. With annual revenue exceeding £100M, Methods is known for delivering business and technical solutions that focus on people, safety, and long-term readiness. Methods takes a human-centric approach, aiming to create value and sustainability for clients, employees, communities, and the environment. The company emphasizes collaboration, continuous improvement, and a culture where people enjoy their work while striving for excellence. While Methods primarily serves the public sector, it is also building a private sector client base. Since joining the Alten Group in early 2022, the company has continued to grow and innovate. Role Overview: Senior Java Back-End Developer This London-based position focuses on back-end Java development within a team that supports both public and private sector clients. The role involves contributing technical expertise, collaborating with colleagues and clients, and helping deliver solutions that meet high standards for quality and safety.

About EdraAt Edra, we tackle one of the most complex challenges in enterprise AI: while AI models are broadly applicable, company processes are uniquely tailored. Our innovative AI agents learn the intricacies of these processes and optimize their operations accordingly.As a Series A startup backed by Sequoia and other top venture capital firms, we're rapidly expanding our teams in New York and London. Our engineering team consists of highly skilled engineers, AI researchers, and strategic thinkers who share the conviction that extraordinary talent is the cornerstone of groundbreaking innovations.The RoleWe are on the lookout for Product Engineers who are passionate about the art of software development. Ideal candidates will excel in strong typing, thoughtful API design, and robust data modeling, ensuring our systems are enjoyable for other engineers to engage with. As an early member of the engineering team at Edra, you will not only influence product development but also help shape our engineering culture, tooling, and foundational technologies.Our approach is both intentional and thorough. We believe there should be no divide between building and shipping; you will transition from the drawing board to production and assume full responsibility for the results. We prioritize crafting robust solutions over hastily delivering fragile outputs, and we view speed and quality as mutually reinforcing, rather than opposing factors.What You'll DoDevelop high-quality user-facing product experiences primarily using TypeScript and React.Engage in frontend architecture decision-making.Collaborate closely with design teams to contribute to product direction and design, articulating clear rationale behind interface decisions.Take ownership of your projects: gather context, manage dependencies, and drive tasks to completion autonomously.Adapt to various roles as necessary, whether building a component library, collaborating with designers, or debugging issues at the API level.Work collaboratively within a cross-functional team of engineers and AI specialists.Shape the technical direction by selecting tools, establishing patterns, and setting conventions that the team will rely on for years to come.Commit to continuous personal growth and knowledge sharing within the team.While primarily focused on frontend development, a solid understanding of backend systems will be necessary for troubleshooting.

Join us as a Front-end Engineer at Magentic, where you will play a pivotal role in shaping the way leading enterprises interact with AI on a daily basis. You will enhance the core product experience for users as they collaborate with AI agents to achieve what they once thought was impossible.If you’re passionate about human-computer interaction and eager to work at the forefront of AI technology, we want to hear from you!We are breaking new ground with innovative agentic systems capable of managing entire procurement workflows. Our mission is to empower global manufacturing supply chains to adapt in a constantly evolving world, targeting a $3 trillion market opportunity.Excitement continues as we are backed by top-tier investors, including Sequoia Capital, and you will be collaborating with a highly skilled team drawn from industry giants such as OpenAI, Meta, Revolut, NASA, and McKinsey.

Join a Transformative OrganizationAt Palantir, we create groundbreaking software that revolutionizes data-driven decision-making and operations. Our platforms empower partners to develop life-saving medications, anticipate supply chain disruptions, locate missing children, and much more by delivering crucial data to those who need it most.About the RolePalantir Foundry is an all-encompassing platform designed for data-driven decision-making. We are redefining how organizations securely integrate their data, enabling them to construct reliable and essential applications on a unified foundation. Our clients utilize Foundry to conduct in-depth analyses that drive core operational strategies. They can also develop sophisticated applications such as operational dashboards, alert management systems, and resource allocation tools powered by advanced machine learning models.As a Senior Front End Software Engineer specializing in application development for Foundry, you will play a key role in designing the tools employed by thousands of users to create the advanced applications that fuel their businesses. Your responsibilities will include architecting and developing user interfaces, managing state, and implementing access patterns to facilitate data-intensive workflows that are both powerful and user-friendly. One day, you may engage with users to gain insights into their needs and pinpoint product enhancements; the next, you could collaborate with your teammates to address intricate UX challenges by integrating customer feedback and insights from various industries.You will routinely tackle complex technical challenges that require you to outline solution designs and identify incremental steps for delivering new features. This includes owning the APIs and schemas that underpin your frontend code and collaborating with backend engineers to develop them.We seek engineers who are dedicated to solving real-world issues and enabling both developers and end-users to achieve optimal results. If you are passionate about creating reliable, high-performance, and scalable systems, as well as designing robust APIs and primitives, this role offers a unique opportunity to significantly influence our products and the individuals who utilize them.Frontline OpportunityFoundry Software Engineers may have the chance to participate in Frontline, a distinctive program that offers a short-term assignment with customers. This immersive experience allows you to work directly with users, gaining valuable insights into how our products are applied and the challenges faced by our clients. Unlike traditional engineering roles, Frontline exposes you to complex, ambiguous problems, empowering you to innovate solutions that directly enhance user experiences.

Join Multiverse, an innovative upskilling platform at the forefront of AI and technology adoption. We partner with over 1,500 organizations to reshape the workforce through transformative learning experiences.Our apprenticeships cater to individuals across all ages and career stages, equipping them with essential AI, data, and tech skills. Our learners have generated more than $2 billion in ROI for their employers by applying their new skills to enhance productivity and performance metrics.In June 2022, we secured a $220 million Series D funding round, co-led by StepStone Group, Lightspeed Venture Partners, and General Catalyst, achieving a post-money valuation of $1.7 billion and becoming the UK’s first EdTech unicorn.With a robust operational presence and a team of over 800, we have ambitious plans for further expansion. Our vision is to create a world where technology skills unlock individual potential and drive results. Become part of Multiverse and help us empower the workforce to thrive in the age of AI.We believe that the most remarkable user experiences arise from the synergy of outstanding design and engineering. We are seeking a Front End Engineer focused on our Design System, which is pivotal in delivering top-tier UX to nearly half a million learners.Design engineering is a diverse field; we welcome both design-savvy engineers and technically inclined designers. You'll be instrumental in developing our design system and other essential frontend projects while exploring how emerging technologies (AI, agentic tools) can revolutionize development practices.The OpportunityAs part of a multidisciplinary team that encompasses brand, product design, and engineering, your primary focus will be to enhance and evolve Multiverse’s design system, ensuring our suite of applications is consistent, accessible, and high-performing at scale.Additionally, you will investigate how agentic workflows and AI-driven tools can facilitate innovative working methods—allowing teams to prototype, experiment, and implement changes across applications swiftly. Your contributions will redefine collaboration between design and engineering and help pioneer the next generation of design engineering at Multiverse.What We Mean by an “Agentic Design System”We aim to elevate our design system to enable swift modifications across our applications in minutes, rather than days.Our goal is to empower product and design teams to prototype and experiment without compromising quality through vibe-coded interfaces.We seek to provide our developers and designers with top-tier tools to enhance their creative processes.

Join Jane Street as a Front End Software Engineer, where your passion for front-end development and user-interface design will drive the creation of innovative browser-based tools for our trading infrastructure. As we cater to expert users, our goal is to uphold an exceptional user experience while crafting tools that are both flexible and powerful enough to meet the demands of our highly engaged clientele. In this role, you will not only contribute to individual tools but also identify opportunities to develop libraries and abstractions that encapsulate common interaction patterns, enhancing our development practices and overall approach to UI development.

Senior Software EngineerBecome a key player in our mission to revolutionize the shopping and dining experience, where innovation, impact, and growth are at the forefront of everything we pursue. Our Engineering teams tackle intricate technical challenges across a global, three-sided marketplace, constructing and scaling systems that cater to millions of customers, riders, and partners daily.From real-time logistics to robust infrastructure and marketplace optimization, we design, build, and operate technology that fuels Deliveroo’s expansive growth.We seek a Senior Software Engineer to join our London (Hybrid - 3 days from the office) team. In this pivotal role, you will enhance code structure and architecture while leading project planning to maximize efficiency and reliability across our production systems.Familiarize yourself with our Engineering team — discover what motivates us, our work culture, and what you can anticipate.Your ResponsibilitiesHere’s what your day-to-day might encompass:Pursue Technical Excellence: Refine code structure and architecture within your team’s domain, conducting impactful code reviews to ensure quality and scalability.Steer Project Planning: Anticipate dependencies and risks, collaborating closely with Product and Design to ensure seamless delivery of complex features.Enhance Operations: Streamline the maintenance and operation of production systems, fostering visibility, health, and operational readiness.Collaborate & Influence: Cultivate relationships across engineering teams to uncover collaboration opportunities and influence the broader technical roadmap.Mentor & Recruit: Facilitate the personal development of your colleagues through technical mentorship and actively participate in engineering interviews to expand our team.Desired QualificationsOur ideal candidate will bring robust expertise in several of these areas and a willingness to grow in others:Solid Engineering Principles: A strong commitment to crafting readable, well-designed, and thoroughly tested software.Backend Proficiency: Extensive experience in developing web-based applications (we utilize Go, Ruby/Rails, Python, Scala, and Rust).Data Proficiency: Familiarity with data handling and optimization techniques.

We are seeking an experienced Senior Software Engineer to join our innovative team at AECOM in London. In this role, you will be responsible for designing, developing, and implementing software solutions that meet client needs. You will collaborate with cross-functional teams to deliver high-quality products and improve our software development processes.

About Us Welcome to Zopa! Since our inception in 2005, we have pioneered the peer-to-peer lending landscape, and in 2020, we proudly launched Zopa Bank. Our mission is to revolutionize the banking experience by actively listening to our customers and addressing their financial concerns. We are committed to creating a banking ecosystem that prioritizes our customers’ needs, enabling them to reach their financial aspirations. Discover more about our innovative services at Zopa.com!Our accolades speak volumes; we not only receive industry awards but have also been recognized as one of the top three Most Loved Workplaces in the UK.If you are passionate about tackling unconventional challenges, thinking outside the box, and making a significant impact in the financial space, Zopa is the place for you. Join us and be part of something remarkable! Follow our journey on Instagram @zopalife.Your Engineering ChallengeAs a Senior Software Engineer, you won't just be writing code; you'll be tackling real financial challenges faced by millions. You will design and implement distributed systems that handle thousands of transactions each day, develop robust services to manage financial data, and simplify complex financial products to enhance user experience.

Join Aircall, a leading unicorn in the customer communications sector, revolutionizing the way businesses connect with their customers. Our AI-powered platform, trusted by over 22,000 companies globally, integrates voice, SMS, WhatsApp, and AI into a single cohesive workspace, enhancing revenue generation, expediting issue resolution, and empowering customer-facing teams.At Aircall, we believe in working smarter, not harder. Our AI Voice Agent automates routine calls, AI Assist simplifies post-call tasks, and AI Assist Pro offers real-time support, enabling teams to perform at their best. This innovation leads to increased revenue, quicker resolutions, and scalable teams.Headquartered in Paris, with a robust presence in North America centered in Seattle, Aircall has teams across various cities including Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. We have crafted a beloved product and a rapidly growing business, supported by top-tier investors and driven by swift AI advancements across our offerings.At Aircall, you will become part of a dynamic and ambitious organization, where product excellence and execution are paramount. We prioritize swift decision-making, visible impact, and genuine growth.Our Work Culture: We are dedicated to our customers, rely on data-driven insights, and are focused on delivering impactful results. We value responsibility, continuous learning, and thoughtful speed. If you thrive in a collaborative, fast-paced environment where trust and impact are essential, you'll fit right in.We are seeking a motivated and passionate Senior Software Engineer to join our expanding engineering team and contribute to our innovative projects.In this role, you will be responsible for the design, development, deployment, and operation of critical features that enhance customer satisfaction. You will focus on operational excellence, metrics, observability, and best practices while mentoring your peers within the engineering team.With a commitment to quality, excellence, and agility, you will help elevate our delivery processes. Utilizing a NodeJS and Typescript back-end stack hosted on AWS, you will ensure that our solutions meet the highest standards.

Join Our Team!Are you an innovative Senior Software Engineer looking to make a significant impact? At Perk, we are redefining the landscape of travel and spend management with our intelligent platform. Our mission is to eliminate the tedious manual tasks that hinder productivity, allowing professionals to focus on what truly matters.Since our establishment in 2015, we've grown to serve over 10,000 companies globally, including renowned names like Wise, On Running, and Breitling. Our cutting-edge tools streamline everything from travel bookings to expense management, addressing a staggering $1.7 trillion problem of lost productivity.With a vibrant workforce of over 1,800 talented individuals across 12 offices, we are committed to fostering innovation and enhancing workplace culture. We believe in the power of curiosity, purpose, and teamwork, and we want you to be part of our journey to transform how businesses operate.

Join our innovative team at Faculty as a Senior Software Engineer. In this role, you will leverage your technical expertise to design, develop, and maintain software solutions that drive our mission forward. You will collaborate with cross-functional teams to deliver high-quality products that meet the needs of our clients.The ideal candidate is passionate about technology, possesses strong problem-solving skills, and has a proven track record in software engineering. If you thrive in a fast-paced environment and want to make a significant impact, we want to hear from you!

Strideup is seeking a Senior Software Engineer to join the team in London. This role centers on developing and enhancing software products that align with business objectives and provide a high-quality user experience. Day-to-day work is hands-on and involves working closely with colleagues from various departments. Responsibilities Design and build software solutions for both new initiatives and ongoing projects Collaborate with team members from different backgrounds to deliver scalable applications Use programming expertise and software design principles to address technical challenges Take part in project planning and contribute to the successful rollout of new features Requirements Strong programming background and experience in software design Skilled at solving complex technical problems Comfortable working as part of a cross-functional team This position is located in London, England, United Kingdom.