Senior Software Engineer at Sequence | London

Role Overview 8th Light, Inc. is seeking a Senior Software Engineer to join its London-based team. This hybrid role offers the chance to work alongside experienced engineers on a variety of client projects. The company is a well-established software consultancy, known for its focus on quality and collaboration. What You Will Do Design, develop, and maintain software applications for a range of clients and industries Work closely with other engineers to deliver reliable, well-crafted solutions Mentor junior engineers, sharing knowledge and supporting their professional growth Contribute to a team culture that values learning and continuous improvement Location This position is based in London, England, with a hybrid work arrangement.

Role Overview 8th Light, Inc. seeks a Principal Software Engineer for its London office. This hybrid role combines in-office and remote work, supporting both flexibility and close team collaboration. What You Will Do Lead software projects from planning through delivery Mentor junior developers and support their growth Work with cross-functional teams to build high-quality software products Promote technical excellence and encourage continuous improvement within the team Who We’re Looking For We value engineers with a track record of building reliable software, a collaborative approach, and a commitment to craftsmanship. Experience leading teams or projects is important. A willingness to share knowledge and help others grow is essential. Location London, England, United Kingdom (hybrid: in-office and remote work)

Location: London Start date: Immediate The Role: Join AlphaSights as a Senior Test Engineer within our dynamic Software Engineering Team. In our digital-first organization, ensuring continuous uptime, exceptional product quality, and outstanding user experiences is paramount. This role presents a unique opportunity to make an immediate impact on our engineering efforts. You will collaborate closely with Software Engineering and Product Management, spearheading the design and execution of automated testing solutions that scale across our platform, guaranteeing reliability and quality across frontend, backend, and APIs. We seek a proactive, innovative, and collaborative individual who is committed to continuous improvement and team success. This hands-on leadership role involves not just developing and maintaining automated tests but also guiding Test Engineering strategies, establishing technical standards, mentoring QA team members transitioning to Test Engineering, and defining best practices for testing, quality, and reliability. In this fast-paced environment, you will maintain a positive, solution-oriented mindset while delivering flawless user experiences through robust test automation. In addition to working with teams based in London and Portugal, you will have the chance to engage with teams across EMEA, the US, and Asia. What You’ll Do: Lead the design and development of automated test plans, suites, and frameworks across multiple projects to ensure comprehensive test coverage and high-quality releases. Mentor and guide junior QA engineers, enhancing their automation skills and cultivating a culture of quality and best practices. Maintain and scale test automation infrastructure to support CI/CD pipelines, cross-platform validation, and rapid feedback loops. Perform targeted manual testing, including exploratory testing, edge-case validation, and UI/UX verification when necessary. Collaborate closely with Engineering and Product teams to define test strategies, acceptance criteria, and testing priorities for complex features. Drive cross-team initiatives that enhance overall testing practices.

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.

Join our innovative team at unlikelyai as a Senior Software Engineer, where you will have the opportunity to develop cutting-edge solutions that push the boundaries of artificial intelligence. In this role, you will collaborate with a talented group of professionals, leveraging your expertise to optimize our software development processes and deliver high-quality products.

About the RoleJoin our innovative Digital Twin team as a Senior Software Engineer at On, where you will be pivotal in developing the technological framework that allows us to track and identify products across our warehouses, retail locations, and beyond using cutting-edge technologies like RFID. This role is essential within the Operations cluster, significantly impacting how we collaborate with our supply chain, warehouse, and commercial partners, ultimately shaping the success of On.At On, we are committed to ensuring that everyone globally has access to the best sportswear. To achieve this goal, we require high-performance solutions that guarantee the right products reach customers at the right time, while also making the entire process efficient, sustainable, and environmentally friendly.

Overview Join Tipalti as a Senior Software Engineer and play a crucial role in developing and delivering impactful product features that enhance customer satisfaction and address significant business challenges. Collaborate closely with Product Managers, Designers, and cross-functional engineering teams to transform product visions into scalable, secure, and maintainable software solutions. This role integrates hands-on engineering with a product-focused mindset, allowing you to define requirements, engage in technical discussions, and influence user experience while owning the entire software development lifecycle. Responsibilities Engineering & Delivery Create robust, efficient, and well-tested code across the software stack. Implement new features and enhancements in alignment with product priorities. Engage in design and architecture discussions to refine technical direction. Review code with peers, uphold clean code practices, and ensure quality standards are met. Product Collaboration Partner closely with Product Managers to clarify requirements and propose solutions. Proactively raise questions, identify edge cases, and assist in refining specifications. Contribute technical insights into prioritization and product decision-making. Cross-Functional Communication Communicate effectively with designers, engineers, and stakeholders. Share knowledge and mentor team members as appropriate. Collaborate with external partners and vendors on integration work when necessary. Requirements You are: Skilled in full-stack development and enthusiastic about learning new technologies. Committed to writing clean, maintainable, secure, and thoroughly tested code. Collaborative and communicative, thriving in team environments. Curious about customer needs, adept at translating them into technical solutions. Dedicated to continuous learning and sharing insights with your team. Preferred Technical Skills Proficient in JavaScript / TypeScript, Node.js, React (or similar technologies). Experience with REST APIs or microservices. Familiarity with MongoDB. Knowledge of cloud services, particularly AWS. Why Join Tipalti? Become part of an innovative and dynamic team at Tipalti, where your contributions will directly impact the growth and success of our products and services.

Embark on an exciting journey with us as we aim to transform real estate transactions into a seamless, swift, and intelligent process. The real estate market, being the largest asset class globally, still relies heavily on outdated and manual legal procedures. Legal professionals find themselves wading through tedious documents, while clients expect quicker and more transparent due diligence. Enter Orbital Copilot, our AI-powered assistant tailored for commercial real estate law. Created in collaboration with experienced real estate lawyers, it enhances complex due diligence processes by up to 70%, all while maintaining legal-grade accuracy. With a recent infusion of $60 million in Series B funding, we are poised for rapid expansion in the UK and US markets. Leading firms like Goodwin and BCLP trust us to eliminate redundant tasks, empowering legal teams to concentrate on delivering expert legal advice, exceptional client service, and closing deals more efficiently. Joining Orbital means becoming part of a dynamic team that is reshaping the future of real estate transactions—where speed, collaboration, and the ability to make a significant impact from day one are paramount.Your RoleAs a Senior Software Engineer, you will create innovative tools that revolutionize the transfer of the world’s largest asset class. We are shifting property transactions from manual document reviews to an automated AI solution that operates with the mindset of a real estate lawyer.Your contribution will not be limited to executing builds; you will leverage your expertise to guide product development and lay the groundwork for our next phase of growth, offering you real influence over our creations.Key ResponsibilitiesDevelop and deploy production software, transforming concepts into dependable customer-facing features.Collaborate with a close-knit team of engineers to design and implement new functionalities.Utilize AI coding agents to generate, iterate, and refine high-quality production code.Engage with a technology stack that typically includes TypeScript, React, PostgreSQL, and Python, while reviewing and guiding code produced by AI agents.Contribute to technical design and architecture decisions.

About DialpadDialpad is an innovative leader in AI-driven customer communication solutions, revolutionizing the way businesses engage with their clientele. Trusted by over 50,000 organizations worldwide, including renowned names like Netflix, RE/MAX, Uber, Randstad, and Tractor Supply, Dialpad empowers companies to enhance customer relationships through real-time, AI-powered insights. Explore more at dialpad.com.Join Our TeamAt Dialpad, you will collaborate with a dynamic team dedicated to our mission of ensuring the success of our customers and their employees. Every conversation is significant, and our platform elevates each interaction with real-time insights and automation for our clients.We embrace continuous growth, allowing every team member to leverage cutting-edge AI to refine our platform and enhance their own skills. We seek individuals who not only meet our high expectations but exceed them. Our ambitious goals require a team that operates at peak performance, and we look for candidates who embody the qualities essential to our success: Resourceful, Inquisitive, Positive, Tenacious, and Compassionate.Your RoleWe are on the lookout for a dedicated and skilled Senior Software Engineer who is enthusiastic about developing high-quality, scalable web and desktop native applications utilizing modern frontend and backend technologies. You will take ownership of significant features from start to finish, overcome technical challenges, and contribute to the team's growth by mentoring junior engineers. Collaborating with fellow engineers, you will guide projects to deliver major features, while working closely with Product Managers to advocate for technical initiatives within the team.Reporting StructureThis position reports directly to our Engineering Manager located in London. We are looking for someone to join our team in our London office. Please note, this is a hybrid role, with an expectation to be in the office 2-3 times per week.

Join Relay, a pioneering force in the evolution of online logistics. With a historic Series A funding round of $35 million, led by Plural, a notable deep-tech investor, Relay is outpacing 99.98% of venture-backed startups. We are building an exceptionally talented team, setting new standards in the logistics sector.Our Mission is to eliminate friction in commerce. High delivery costs are a hidden barrier to e-commerce, influencing what can be sold online and who can participate in the market. We aspire to create a world where goods flow freely among people, ensuring a seamless and inclusive online shopping experience.Our Team consists of approximately 110 members, with over half dedicated to engineering, product, and data roles. We boast 45+ advanced degrees in disciplines such as computer science, mathematics, and operations research. With thousands of data points meticulously captured and analyzed for each parcel, we cultivate a culture of first-principles thinking, robust feedback loops, and a commitment to experimentation.Collaborate with Industry ExpertsDiego Protas – Director of EngineeringDiego specializes in distributed systems and hardware architecture, integrating physical computing with scalable enterprise infrastructure. With experience leading over 170 engineers at Mercado Libre and driving large-scale ML-based inference at Meta, Diego’s dynamic leadership at Relay is setting new benchmarks for speed and reliability.Technical EnvironmentUtilizing Python, Rust, and TypeScript to ensure we employ the best tools for our projects.Developing cross-platform Flutter applications with a focus on exceptional user experience.Operating in a cloud-native environment on GCP, leveraging BigQuery and Cloud Run.Engaging in extensive ML modeling and LLM inference as part of our daily operations.Integrating emerging technologies, including robotics and IoT functionalities.Your Role as a Software Engineer at Relay includes:Taking ownership of complex engineering challenges.

Senior Software Engineer I at Checkout.com, London About Checkout.com Checkout.com supports digital payments for companies like eBay, ASOS, Klarna, Uber Eats, and Sony. Headquartered in London, the company operates across six continents and focuses on simplifying online transactions for businesses worldwide. What You’ll Do Senior Software Engineers at Checkout.com help design and build advanced payment technologies. This work directly improves merchant capabilities and supports the company's global mission. The role involves: Leading projects that align with strategic goals Collaborating with teams that prioritize customer needs Bringing technical insight and creativity to solve new challenges Influencing engineering priorities and direction What Sets This Team Apart Innovation and performance drive the culture at Checkout.com. Every team member plays a part in shaping the future of fintech. Senior engineers are trusted with real responsibility and the chance to make a visible impact. Location This position is based in London. Learn more about the company at Checkout.com.

Job Title: Senior Software Engineer I Location: London / Bristol / Edinburgh - Hybrid Salary: £60,000 - £80,000 Reporting to: Software Engineering Manager Please note: We currently do not provide visa sponsorship for this position. We are dedicated to creating a diverse and global team, and our sponsorship policy is assessed on a role-by-role basis. We invite you to check our careers site for future roles that may offer sponsorship. Kaluza is at the forefront of the Energy Intelligence revolution, transforming the complexities of energy management into seamless coordination. We empower energy providers to tackle current challenges while accelerating the transition to a clean, electrified future through advanced data utilization, AI, and real-time decision-making. By merging predictive algorithms with human-centric design, Kaluza ensures that clean energy is both reliable and affordable. With a presence across Europe, North America, Asia, and Australia, and a partnership with Mitsubishi Corporation in Japan, we support leading companies like OVO, AGL, and ENGIE, along with innovators such as Volvo and Volkswagen. As we undergo rapid growth, we have various opportunities across different teams and levels. The specific role you will pursue will be determined as we advance through the interview process, allowing us to identify where your skills can make the most significant impact while providing you with the necessary support for your development and that of the team. Our Talent Acquisition team will guide you through the details as we proceed. What will you be doing? You will be part of the Kaluza Technology community, focusing on the Energy Retail platform, a scalable SaaS product designed to support energy retailers and decarbonization efforts. In this position, you will build and maintain backend services using TypeScript, contributing to event-driven systems that enable reliable, real-time features. Collaboration with product managers, designers, and engineers will be crucial as you deliver customer-centric solutions and take ownership of services from design to production. You will also engage with cloud technologies such as AWS, optimize performance and data models, and contribute to fostering a collaborative engineering culture. About You We ideally seek candidates who have: Strong knowledge in software development, particularly in TypeScript Experience working with cloud technologies, especially AWS Proven ability to collaborate and communicate effectively within a team A passion for clean energy and sustainability

Our MissionAt Omnea, we are transforming the operational landscape for enterprise businesses, particularly addressing the complexities of procurement. This often cumbersome process can involve months of delays and a multitude of emails, drawing in departments such as Finance, Legal, Security, and IT for purchase approvals.With the backing of $75M from Khosla Ventures, Insight Partners, and Accel, we are committed to revolutionizing this space. Our AI-driven platform seamlessly integrates all stakeholders, ensuring that the purchasing process is swift, secure, and efficient. We provide a centralized system for requests, automated approvals, real-time supplier risk assessments, and comprehensive spend visibility.The market potential is significant, with over $7B available. Our growth trajectory demonstrates the scale of this opportunity, having increased our Annual Recurring Revenue (ARR) tenfold within 18 months, earning the trust of renowned global enterprises like Spotify, MongoDB, Monzo, and Albertsons. As of now, we proudly hold the title of the 4th fastest growing startup in Europe.Our team previously scaled Tessian (cybersecurity technology, backed by Sequoia, Balderton, Accel, and acquired post-Series C). Our members include former founders and operators who have successfully built unicorns, delivered exceptional products, and achieved high-level execution. You will collaborate with leaders such as Ben, Abs, Sabrina, and Rebe.What We're Looking ForWe are seeking a highly skilled and product-focused Senior Software Engineer to join our expanding engineering team and support Omnea in its next growth phase. In the upcoming year, we plan to double our team size, grow our enterprise client base from approximately 100 to over 200, and triple our revenue. In this position, you will be responsible for developing high-quality product features and systems, managing complex problem domains comprehensively, and making a direct impact on customer experiences as we transition from a startup to a scale-up.This is an exciting time to join us as we have recently secured $50M in Series B funding from Khosla Ventures...