Senior Software Engineer - Card Integrations at Engine by Starling | London

Join us at Engine by Starling, where we collaborate with top-tier banks globally to revolutionize banking through our cutting-edge technology.Engine operates as Starling's software-as-a-service (SaaS) division, initially designed to fuel Starling's growth. Two years ago, we transitioned into an independent entity, enabling banks and financial institutions wo…

Join Us in Supporting the UK's Small Businesses! At Funding Circle, we believe small businesses are the backbone of the economy, and we’re dedicated to helping them succeed. Our innovative platform utilizes advanced data analysis to secure funding in minutes rather than weeks.We combine the dynamism of a fintech start-up with the reliability of a publicly traded company, providing our team members—known as Circlers—with a unique blend of autonomy and the opportunity to make a meaningful impact.Our high-performing team fosters a culture of support and collaboration. We challenge each other, celebrate successes, and understand that united, we can drive progress and enhance our outcomes.The impact is tangible: Last year, businesses using our platform contributed £7.2bn to the UK economy Join a mission that truly matters![Explore our Impact Report] | [Check our Trustpilot reviews]Your Role London (Hybrid) | 2 days in the office | Competitive Salary + BenefitsWe are seeking a Senior Software Engineer to become part of our Accounts & Cards team.As a member of our collaborative Credit Risk Platform team within the Core Services department, you will focus on enhancing our proprietary decision engine, which is vital to our application process. You will collaborate with talented peers to deepen your understanding of our credit strategy and the software systems that underpin it. This is a fantastic opportunity to create a significant impact while furthering your skills in a culture that champions innovation, teamwork, and collective success.You thrive on building new solutions and are comfortable navigating legacy codebases. You enjoy tackling complex problems with straightforward software systems.You have a background in Functional Programming, microservices, and/or event-driven architecture.You are a team player who promotes collaborative work and believes that teamwork leads to smarter outcomes.Your skills in coding and problem-solving will be essential in driving our projects forward.

About Checkout.com Checkout.com powers online payments for leading brands including eBay, ASOS, Klarna, Uber Eats, and Sony. The company’s global payment network supports billions of transactions each year, helping money move quickly and reliably for businesses worldwide. With 19 offices across six continents and headquarters in London, Checkout.com’s team focuses on continuous improvement and high performance. The work often happens behind the scenes, but when payments run smoothly, customers and businesses both benefit. Role Overview: Senior Sales Manager – Card Issuing Checkout.com is hiring a Senior Sales Manager in London to accelerate the growth of its Card Issuing solution. This role sits within the Commercial Team and focuses on helping global enterprises launch card programs, from virtual cards for travel to physical cards for Buy Now Pay Later (BNPL) products. The position reports directly to the Director. The Senior Sales Manager will oversee multiple sales cycles, aiming for high conversion rates and consistently exceeding targets. Success in this role requires a strong background in selling advanced card issuing solutions, especially in competitive markets. The company offers an uncapped recurring commissions plan and a collaborative work environment. Collaboration with technology and business teams is key. The role involves presenting Checkout.com’s products and services to potential clients, tailoring solutions to their needs, and driving new business. Independence, motivation, and a track record of surpassing sales goals are essential. Key Responsibilities Pipeline Development: Identify high-potential clients and build a strong pipeline for card issuing across multiple sectors. Solution Selling: Promote card issuing products to travel intermediaries and fintech clients using targeted outbound strategies. Consultative Engagement: Advise clients and tailor solutions to fit their specific requirements. Location This position is based in London.

About Checkout.com Checkout.com supports the payment experience for leading brands such as eBay, ASOS, Klarna, Uber Eats, and Sony. While the company name may not appear at checkout, its technology underpins smooth online transactions that help businesses grow. With a global network handling billions of transactions each year, Checkout.com focuses on making financial operations reliable and efficient. Years of development have gone into a service that quietly supports business continuity around the world. The company operates from 19 offices across six continents. Its London headquarters is the center of operations. The team values performance, continuous improvement, and a hands-on approach to shaping the future of fintech. Role Overview: Senior Product Manager, Card Processing Checkout.com is seeking a Senior Product Manager to join the Card Acquiring team in London. This role works closely with colleagues in operations, product, financial partnerships, and compliance. The focus: defining scheme requirements to support global growth. What You Will Do Analyze card scheme features to help launch new payment products Drive processing quality and operational excellence Develop and share processes, knowledge, and best practices across the company Location This position is based in London.

Join our innovative team at getscope as a Senior Software Engineer. In this pivotal role, you will design, develop, and implement cutting-edge software solutions that will drive our projects forward. Collaborate with cross-functional teams to translate business needs into technical requirements while ensuring high quality and performance of applications.

Join Runna as a Senior Software Engineer II, where you'll play a pivotal role in enhancing our software solutions. You will collaborate with cross-functional teams to design, develop, and implement robust applications that meet our customers' needs. Your expertise will help us push the boundaries of technology, ensuring our products remain at the forefront of the industry.

Join Our Mission as a Senior Business Developer! At TheFork, we understand that some of life’s best moments are shared around the dining table. Our mission is to unite the world’s beloved restaurants with a community of passionate diners.With our innovative products, we make it easier than ever for diners to discover their next dining experience and for restaurants to enhance their business performance: TheFork App: A complimentary app for effortless restaurant discovery and reservations. TheFork Manager: A groundbreaking tool that streamlines restaurant operations, enabling restaurateurs to manage bookings efficiently and increase revenue. TheFork PAY and TheFork Gift Card: Simple and quick payment solutions directly through TheFork app.We believe that our people are the heart of our success. The vibrant Forkies community thrives on our core values: Better Together, Ownership, Respect, and Growth. Our guiding principles—“Come as you are,” “Dig in,” and “Make it Memorable”—shape our culture.TheFork is a leader in the European restaurant booking market, operating in 11 countries. Our offices are home to a diverse international team working in a flexible, multicultural environment that fosters both personal and professional development.To learn more about TheFork and our community, visit our official site: https://www.careers.thefork.com

At Engine by Starling, we are dedicated to partnering with premier banks globally that aspire to establish rapidly growing businesses using our innovative technology.Engine, a distinct entity of Starling, operates as a software-as-a-service (SaaS) provider, delivering the same cutting-edge technology that propelled Starling's remarkable growth since its inception.Starling has achieved significant success, largely due to our proprietary modern technology. Now, our SaaS platform is accessible to banks and financial institutions worldwide, empowering them to leverage the innovative digital features and streamlined back-office processes that contribute to Starling's success.We combine our insights as seasoned bankers with top-tier technologists to become the preferred choice for banks and esteemed partners for leading consultancy firms.Hybrid WorkingAt Engine, we embrace a hybrid working model. We prefer team members to be within a commutable distance of one of our offices, fostering in-person collaboration and interaction.About the RoleAs a Product Manager within Engine’s Product & Technology division, you will oversee one or more subdomains in the Cards sector, ensuring effective product development and actively contributing to the creation of new card features. Collaborating closely with the broader cards product team, you will also help shape the overarching cards roadmap and engage with current and prospective clients to ensure we meet their needs effectively.Your role will involve problem-solving, diving into details, and understanding how clients can maximize our product's capabilities while also designing enhancements. Your responsibilities will span product strategy, client-facing requirements gathering, solution design, and product ownership within an engineering context.Key ResponsibilitiesTake charge of a top-tier card product by defining innovative features and managing the end-to-end delivery of your subdomain(s) in alignment with Product and Engineering leadership.Contribute to the overall card roadmap by providing insights from your subdomain(s).Collaborate cross-functionally with engineers, designers, technical writers, and QA to drive product improvements that align with the business vision, considering both existing and potential clients.Confidently prioritize incoming tasks and communicate the rationale behind each decision effectively.

About the PositionWe are seeking a highly skilled and motivated Senior Software Engineer - Generalist to join our innovative team at Anza. This role is pivotal in enhancing our Agave client and the overarching Solana network, focusing on performance, reliability, and security.About UsAnza is a cutting-edge R&D lab focused on the Solana blockchain, dedicated to revolutionizing blockchain performance and scalability. With a team of seasoned executives and core engineers, we tackle the most pressing challenges in the Web3 space. We believe in the power of collaboration and transparency, building robust protocols that can support the crypto ecosystem's growth and security.Your ResponsibilitiesDevelop and optimize our technical infrastructure, particularly the Agave client within the Solana ecosystem.Design and implement testing frameworks to simulate adversarial attacks and proactively identify vulnerabilities.Analyze performance metrics to pinpoint and resolve bottlenecks.Collaborate with subject matter experts to understand and define performance requirements for code components.Benchmark new solutions to enhance system reliability and performance.Work alongside cross-functional teams to architect solutions focused on scalability, security, and optimal performance.Contribute to all stages of the software development lifecycle, ensuring seamless transitions through development, staging, and production.Document architecture and processes to promote standardization and knowledge sharing across teams.

Join a Revolutionary CompanyAt Palantir, we are redefining the landscape of software designed for data-driven decision-making and operational efficiency. Our innovative platforms enable partners to make significant advancements—from developing life-saving pharmaceutical solutions to predicting supply chain challenges and reuniting families with missing children.Position OverviewThe Substrate team at Palantir is at the forefront of our core production infrastructure, managing hundreds of Kubernetes (K8s) clusters across diverse environments including on-premises setups and leading cloud services. As a Senior Software Engineer within Substrate, you will spearhead the design and development of our managed Kubernetes offerings, ensuring they operate seamlessly across all scenarios.In this role, you and your team will lead the deployment and management of our K8s clusters, achieving complete automation with zero manual intervention through the creation of cutting-edge tooling and contributions to core Cloud Native Computing Foundation (CNCF) components. You will play a vital role in maintaining scalability, stability, and security across a varied landscape of compliance standards and hosting infrastructures. Our team culture is anchored in engineering excellence and operational rigor, prioritizing proactive issue resolution and significant investments in automation and self-healing technologies.If you are passionate about large-scale infrastructure and Kubernetes, this opportunity is tailored for you.

Join our innovative team at AECOM as a Senior Software Engineer, where you will play a critical role in designing and developing cutting-edge software solutions. You will collaborate with cross-functional teams to bring complex projects to fruition, ensuring high quality and performance standards are met.

About the Role Shawbrook Bank is looking for a Senior Software Engineer in London. This role focuses on building software that supports business growth and improves efficiency. Collaboration with other engineers and teams is central to the work. What You Will Do Develop and maintain high-quality software tailored to customer needs Work closely with colleagues to deliver solutions that support the bank’s goals Contribute technical expertise to projects and ongoing improvements

Ebury empowers ambitious businesses to unlock global growth, championing the same ethos for our team members. We foster a culture of innovation, collaboration, and problem-solving, creating an environment where everyone feels valued, supported, and empowered to thrive.If you are a collaborative spirit eager to revolutionize global business operations, we invite you to connect with us. We would love to discuss how Ebury can propel your career forward and enable you to shape the future.Senior Full Stack Engineer (Cards)Hybrid Work Model - 4 days in the office, 1 day remoteWe are seeking a Senior Full Stack Engineer to join our rapidly expanding Cards team. In this role, you will engage with innovative fintech products, addressing customer challenges through data-driven solutions and an entrepreneurial mindset. We are looking for a candidate who is endlessly curious, passionate about continuous learning, and adept at selecting the right tools for the task at hand, irrespective of the programming language or framework utilized.What We Provide:Attractive salary and comprehensive benefits package.Professional development opportunities within a leading European fintech firm.Significant ownership and visibility within a vital business initiative.A collaborative, open, and dynamic workspace.The opportunity to influence how global businesses connect with Ebury.Key Responsibilities:Lead the design and implementation of intricate features for customer-facing web applications.Possess experience in FinTech, banking, or a closely related sector, with a solid grasp of financial systems and development within a regulated environment.Drive frontend development using React/VueJS, alongside backend development with Python.Work with data engineers to design, construct, and optimize robust data pipelines for analytics and machine learning.Manage the entire product lifecycle, encompassing development, maintenance, monitoring, and alerting.Mentor junior engineers and promote technical excellence.Collaborate across departments to deliver impactful solutions.Contribute to the technical roadmap, identifying areas for innovation.Ensure code is easily testable with comprehensive test coverage.Stay informed about emerging technologies.This role may require occasional on-call duties.

Join Multiverse as a Senior Software Engineer specializing in Platform Engineering. In this pivotal role, you will leverage your expertise to design, build, and enhance our platform, ensuring it meets the highest standards of performance and reliability. Collaborate with cross-functional teams to deliver robust solutions that drive the success of our innovative programs.

Join our dynamic team as a Senior Software Engineer at Faculty, where innovation meets technology. In this pivotal role, you will be responsible for designing, developing, and maintaining cutting-edge software solutions that drive our projects forward. We're looking for a passionate engineer who thrives in a collaborative environment and is eager to tackle complex challenges.Your expertise will guide our team in implementing best practices in software development, ensuring high-quality code and optimal performance. You will work closely with cross-functional teams to deliver impactful products that enhance our customers’ experiences.

Role overview Entain seeks a Senior Software Engineer based in London. The position centers on designing, building, and refining high-performance applications that drive key business objectives. Collaboration is a core part of this role, with regular interaction across multiple disciplines to deliver dependable software solutions. What you will do Develop and improve software applications, focusing on performance and scalability Work with cross-functional teams to bring features from initial idea through to deployment Offer technical insight that helps guide Entain’s technology strategy

Join our talented team to create the leading training platform for runners!At Runna, we empower everyday runners to excel by developing an exceptional app that offers world-class training, coaching, and a vibrant community for everyone—from improving 5k times to training for marathons.Our growth is remarkable! In November 2023, we secured a $6.5M funding round led by JamJar, with contributions from Eka Ventures, Venrex, and Creator Ventures. In 2024, we were honored to be one of three global finalists for the iPhone App of the Year by Apple, showcasing our innovation and impact. By 2025, we became part of Strava, further accelerating our journey!Our vision is ambitious: to be the premier global training platform for millions of runners worldwide. As we grow with intention, we seek individuals eager to contribute to something meaningful that leaves a lasting legacy. With the backing of Strava, now is an exciting time to be a part of our journey. The Team You'll JoinWe are in search of innovative, creative, and positive collaborators to become part of our skilled cross-functional engineering team. You will be part of the Train Team, collaborating closely with our modeling teams to integrate essential features aligned with Runna's mission, such as adapting plans for holidays and B races, supporting cutting-edge training plans, and enhancing in-app experiences using our AI/ML tools.You will partner with our CTO and engineering leadership to help shape the future of Runna, receiving unwavering support throughout this thrilling journey. Our roadmap is packed with opportunities to champion new technologies, tackle significant challenges affecting millions of runners, and enhance our existing architecture to elevate our engineering team.Your ResponsibilitiesDesigning, developing, testing, and delivering innovative features across the full stack.Collaborating with the Product team to determine the best solutions for optimal customer experiences.Working with modeling/AI engineers to design the architecture that interfaces between the Runna training engine and the Runna app.Providing technical support to team members as needed.Mentoring and coaching engineers in your team, offering guidance and code reviews while avoiding bottlenecks.

Role overview Based in London, the Senior Software Engineering Manager for Quality Engineering at Sony Interactive Entertainment Global leads a talented group of engineers. The position centers on defining and executing the strategy for software quality and performance across projects. Main responsibilities Shape the strategic direction for the quality engineering team Mentor and guide engineers, supporting their professional development Establish and maintain effective software testing practices Encourage ongoing improvement within the team Collaborate with cross-functional partners to ensure quality standards are met throughout the software development lifecycle Collaboration and impact This leadership role bridges engineering and quality, making sure software products meet rigorous standards from initial planning through release. Regular interaction with teams across Sony Interactive Entertainment Global helps to maintain and raise quality expectations company-wide.

Role overview The Senior Software Engineer I at Runna will play a key part in shaping how users interact with the company’s products. The work centers on designing, developing, and maintaining applications that support a strong user experience. Expect to take a hands-on approach, working closely with colleagues from different teams to deliver solutions that scale and perform reliably. Location This role is based at the Runna office in London.

Join Our Team as a Senior Software Engineer IIAt Runna, we are assembling a skilled team dedicated to creating the premier training platform for runners. Our innovative app empowers everyday runners to achieve their best, offering world-class training, coaching, and community support for everyone from 5k enthusiasts to marathon first-timers.We are experiencing rapid growth! In November 2023, we successfully completed a $6.5M funding round led by JamJar, with contributions from Eka Ventures, Venrex, and Creator Ventures. Our app was recognized as one of three global finalists for Apple's iPhone App of the Year in 2024, showcasing the groundbreaking impact of our work. In 2025, we proudly joined the Strava family!Our goal is ambitious: to be the leading training platform for millions of runners worldwide. With our recent acquisition by Strava amplifying our mission, now is an exciting time to become part of something truly meaningful. Your Future TeamWe seek talented, innovative, and collaborative individuals to join our cross-functional engineering team. You will be an integral member of our newly formed Strength Team, collaborating with our modeling engineers and Team Strava to revolutionize strength training for athletes.You will work closely with our CTO and engineering leadership to shape the future of Runna, receiving support throughout this exhilarating journey. With a dynamic roadmap filled with opportunities, you will champion new technologies, solve meaningful challenges for millions of athletes, and enhance our existing architecture to elevate our engineering efforts.Your ResponsibilitiesArchitect, develop, test, and deploy new features across the full technology stack.Collaborate with the Product team to identify optimal solutions for an exceptional user experience.Partner with modeling and AI engineers to design the architecture that connects the Runna training engine with the Runna app.Provide technical assistance and mentorship to team members as needed.Guide and support fellow engineers through mentorship and code reviews, ensuring smooth workflows without bottlenecks.Contribute to operational efficiency by building and maintaining our development infrastructure.