44 senior software developer jobs in London

About the Role: LMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions. Developers are encouraged to constantly develop and learn new skills. Pair programming supports continual growth of knowledge and sharing of expertise, alongside regular team rotations ensuring everyone gains first-hand knowledge on all areas of our codebase. Friday afternoons are set aside as personal development time where you can explore a different coding language, research bleeding edge technologies, or play around with one of our environments. There is also regularly scheduled time to improve developer experience and reduce technical debt - directed by developers. Our continuous integration and testing culture allows us to have confidence in our builds and develop quickly. We have over 30,000...

About the Role: LMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions. Developers are encouraged to constantly develop and learn new skills. Pair programming supports continual growth of knowledge and sharing of expertise, alongside regular team rotations ensuring everyone gains first-hand knowledge on all areas of our codebase. Friday afternoons are set aside as personal development time where you can explore a different coding language, research bleeding edge technologies, or play around with one of our environments. There is also regularly scheduled time to improve developer experience and reduce technical debt - directed by developers. Our continuous integration and testing culture allows us to have confidence in our builds and develop quickly. We have over 30,000...

We are a leading trading platform that is ambitiously expanding to the four corners of the globe. Our top-rated products have won prestigious industry awards for their cutting-edge technology and seamless client experience. We deliver only the best, so we are always in search of the best people to join our ever-growing talented team. We’re looking for a Lead Product Owner to drive the vision, roadmap, and delivery of our Onboarding Operations product area. You’ll lead other Product Owners, partner with cross-functional teams (Engineering, Design, Data, Legal, Security, Compliance), and work closely with senior stakeholders within the product team as well as business and technology communities to optimise onboarding processes. Your key customers will be the operations and back office teams and your main goals will include supporting the improvement and optimisation of this operational workload for them - looking for opportunities to simplify, refine, and automate....

Our Story Hello there. We’re Zopa. We started our journey back in 2005, building the first ever peer-to-peer lending company. Fast forward to 2020 and we launched Zopa Bank. A bank that listens to what our customers don’t like about finance and does the opposite. We’re redefining what it feels like to work in finance. Our vision for a new era of banking puts people front and centre — we’ve built a business that empowers everyone to aim high, every day, to move finance forward. Find out more about our fantastic offerings at Zopa.com ! We’re incredibly proud of our achievements and none of it would be possible without the amazing team here. It’s not just industry awards we’re winning, we’ve also been named in the top three UK’s Most Loved Workplaces. If you embrace unconventional challenges, are unafraid to think differently and are driven to make an outsized impact, you’ll thrive here at Zopa, so join us, and make it count. Want to see us in action? Follow us on Instagram...

Join CMC Markets' Pricing and Risk team, where you’ll work on our low latency, high-frequency trading platform. You will use cutting-edge Java programming techniques so experience in this area is essential. As a Senior Developer, you’ll not only code but also take on key design responsibilities, shaping impactful projects. You'll mentor junior members of the team, driving innovation in a fast-paced, high-stakes environment. If you’re ready to make a real impact on global markets, we’d love to hear from you! *** Please note that this is an onsite role that will require you to work within our London office (near Liverpool street) 5 days on site per week . *** What You’ll Do Expert Level Java Development: You will apply your in-depth knowledge of the Java programming language (8->21) to implement world class trading and pricing systems. Collaborative Development: Design and develop innovative pricing and risk components for our market-making operations,...

About us: Scope Markets, the brand used by the Rostro Group, offers institutional and retail trading services to businesses and traders worldwide. Our top management team has more than 20 years of experience in the industry, and we are proud of the solid partnerships we built over the years. Whether it's a business or individual, Scope Markets has a wide range of trading solutions that are compliant, flexible, cost-efficient, innovative, and place the client first. The role: The Senior Developer will serve as a technical leader within the product and development team, taking ownership of the client portal, admin portal, onboarding journey, and other background services as needed. This role involves full stack development responsibilities, utilizing both front-end and back-end technologies, and ensuring seamless integration with internal and third-party services. How you can make a difference: Develop software solutions aligned with the team's strategy and...

Join CMC Markets' Pricing and Risk team, where you’ll work on our low latency, high-frequency trading platform. You will use cutting-edge Java programming techniques so experience in this area is essential. As a Senior Developer, you’ll not only code but also take on key design responsibilities, shaping impactful projects. You'll mentor junior members of the team, driving innovation in a fast-paced, high-stakes environment. If you’re ready to make a real impact on global markets, we’d love to hear from you! *** Please note that this is an onsite role that will require you to work within our London office (near Liverpool street) 5 days on site per week . *** What You’ll Do Expert Level Java Development: You will apply your in-depth knowledge of the Java programming language (8->21) to implement world class trading and pricing systems. Collaborative Development: Design and develop innovative pricing and risk components for our market-making operations,...

Who We Are: Alpaca is a US-headquartered self-clearing broker-dealer and brokerage infrastructure for stocks, ETFs, options, crypto, fixed income, 24/5 trading, and more. Our recent Series C funding round brought our total investment to over $170 million, fueling our ambitious vision. Amongst our subsidiaries, Alpaca is a licensed financial services company, serving hundreds of financial institutions across 40 countries with our institutional-grade APIs. This includes broker-dealers, investment advisors, wealth managers, hedge funds, and crypto exchanges, totalling over 6 million brokerage accounts. Our global team is a diverse group of experienced engineers, traders, and brokerage professionals who are working to achieve our mission of opening financial services to everyone on the planet . We're deeply committed to open-source contributions and fostering a vibrant community, continuously enhancing our award-winning, developer-friendly API and the robust infrastructure behind...

Our Story Hello there. We’re Zopa. We started our journey back in 2005, building the first ever peer-to-peer lending company. Fast forward to 2020 and we launched Zopa Bank. A bank that listens to what our customers don’t like about finance and does the opposite. We’re redefining what it feels like to work in finance. Our vision for a new era of banking puts people front and centre — we’ve built a business that empowers everyone to aim high, every day, to move finance forward. Find out more about our fantastic offerings at Zopa.com ! We’re incredibly proud of our achievements and none of it would be possible without the amazing team here. It’s not just industry awards we’re winning, we’ve also been named in the top three UK’s Most Loved Workplaces. If you embrace unconventional challenges, are unafraid to think differently and are driven to make an outsized impact, you’ll thrive here at Zopa, so join us, and make it count. Want to see us in action? Follow us on Instagram...

CMC are hiring! We are looking to hire a Senior Oracle BI Developer to join us here at CMC Markets on a 12 month FTC. We are looking for an Oracle Developer who will enjoy working in a fast-paced, highly collaborative environment, developing BI solutions that drive operational efficiency, unlocks business growth, and keeps us ahead of the regulatory curve. You will join our team of Business Analysts and Developers innovating across the BI technology stack. We are focused on data acquisition, data transformation, and reporting solutions, utilising data from the Groups’ equity and derivative trading platforms to satisfy the reporting needs of the business, working closely with other product development teams using agile methodology. The role is an ideal fit for an candidate with a strong emphasis on development collaboration in equal measure to Oracle database, and data modelling skills. What you will be working on: Perform systems and data analysis to understand business...

About the role We're looking for an experienced, analytical and customer-first Product Manager to join our New Products team, where you'll work closely with one other PM to own all new products together, incubating breakthrough financial products from 0→1 and scaling them to millions of users. In our flat structure with high ownership, you'll have a direct impact on Lendable's next growth vectors, working in small teams of exceptional people who find smarter solutions than the status quo. You'll report to the Senior PM and take day-to-day ownership of cross-functional squads exploring entirely new product opportunities beyond our core lending products. Recent examples of new product launches just in the last few months include Zable Mobile SIM cards and Car Insurance. Why join our 'New Products' team? High ownership : Take full ownership of product lines from day one in our flat organisational structure. Exceptional team : Work alongside some of the industry's best...

Job Description Grow with the challenge At the time of inception, cloud-based systems and API fluency were new. But that didn't scare us. We waved goodbye to legacy systems and embraced modern technology – where our true innovation began and didn't stop. No hierarchy, no egos. Just a spirit of collaboration that flows right throughout our organisation – it’s woven into our DNA. We genuinely want to know about each other’s learnings and expertise, especially where it can help us achieve bigger things. At ClearBank, we make things happen. We solve problems together because we know that many heads are always better than one. Valuing different perspectives is what sets our culture apart. And being able to disagree and commit is key to our progress. Above all we’re a team because when we win together, it feels so much better than doing it alone. What You Can Expect ClearBank is a place where you can do things differently and challenge the status quo. We will give you a high...

Who Are Yapily Yapily is on a mission to enable innovative companies to create better and fairer financial services for everyone, through the power of open banking. Yapily is an open banking infrastructure platform solving a fundamental problem in financial services today: access. Historically, card networks have monopolised the global movement of money, and banks have monopolised the ownership of, and access to, financial data. Yapily was founded to challenge these structures and create a global open economy that works for everyone. We exist behind the scenes, securely connecting companies - from growth to enterprise - to thousands of banks worldwide, enabling them to access data and initiate payments through the power of open banking. What We Are Looking For As a Senior Cloud Engineer at Yapily, you will play a key role in designing, implementing and operating our Cloud Infrastructure. You will join a small, but efficient team growing from startup towards enterprise,...

LMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions. Developers are encouraged to constantly develop and learn new skills. Pair programming supports continual growth of knowledge and sharing of expertise, alongside regular team rotations ensuring everyone gains first-hand knowledge on all areas of our codebase. Friday afternoons are set aside as personal development time where you can explore a different coding language, research bleeding edge technologies, or play around with one of our environments. There is also regularly scheduled time to improve developer experience and reduce technical debt - directed by developers. Our continuous integration and testing culture allows us to have confidence in our builds and develop quickly. We have over 30,000 acceptance tests running...

LMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions. Developers are encouraged to constantly develop and learn new skills. Pair programming supports continual growth of knowledge and sharing of expertise, alongside regular team rotations ensuring everyone gains first-hand knowledge on all areas of our codebase. Friday afternoons are set aside as personal development time where you can explore a different coding language, research bleeding edge technologies, or play around with one of our environments. There is also regularly scheduled time to improve developer experience and reduce technical debt - directed by developers. Our continuous integration and testing culture allows us to have confidence in our builds and develop quickly. We have over 30,000 acceptance tests running...

? Inbound Account Executive (On-Site – London) Want to grow your sales career in one of the world’s leading fintech scale-ups? Join our inbound sales team in London , where you’ll turn warm leads into happy customers — and help small businesses across the UK succeed with SumUp. At SumUp , we believe small merchants are the heart of the economy. That’s why we build intuitive, affordable tools that make getting paid simple. With over 4 million businesses using SumUp across 30+ countries , we’re shaping the future of payments — and we want you on the journey. As a Junior Inbound Account Executive , you’ll convert inbound leads into loyal customers, guiding small businesses through their first steps with SumUp. ? What You’ll Do ? Engage with inbound leads generated by our marketing team — your role is to qualify, consult, and convert ? Connect with small and medium-sized businesses by phone and email, building trust and understanding their needs ? Deliver product...

Grow with the challenge At the time of inception, cloud-based systems and API fluency were new. But that didn't scare us. We waved goodbye to legacy systems and embraced modern technology – where our true innovation began and didn't stop. No hierarchy, no egos. Just a spirit of collaboration that flows right throughout our organisation – it’s woven into our DNA. We genuinely want to know about each other’s learnings and expertise, especially where it can help us achieve bigger things. At ClearBank, we make things happen. We solve problems together because we know that many heads are always better than one. Valuing different perspectives is what sets our culture apart. And being able to disagree and commit is key to our progress. Above all we’re a team because when we win together, it feels so much better than doing it alone. What You Can Expect ClearBank is a place where you can do things differently and challenge the status quo. We will give you a high level of autonomy...

Company Description Are you ready to trade your job for a journey? Become a FlyMate! Passion, excitement & global collaboration are all core to what it means to be a FlyMate. At Flywire, we’re on a mission to deliver the world’s most important and complex payments. We use our Flywire Advantage - the combination of our next-gen payments platform, proprietary payment network and vertical specific software, to help our clients get paid, and help their customers pay with ease - no matter where they are in the world. What more do we need to truly be unstoppable? Perhaps, that is you! Who We Are Flywire is a global payments enablement and software company, founded a decade ago to solve high-stakes, high-value payments in education, using modern technology. Today, we’ve digitized payments for more than 3,300+ global clients across education, healthcare, travel & B2B, covering more than 240 countries and territories and supporting over 140 currencies. And, we’re just...

Who We Are. Axi is a leading global provider of margin and deliverable Foreign Exchange, Contracts for Difference (CFDs), and Financial Spread betting. Our business has evolved into a world-class, multifaceted brokerage with offices in six regions. With heavy investment in the latest trading technology, Axi seeks to offer the most comprehensive end-to-end trading experience available, servicing traders of all levels from beginners to institutional-level clients. Let's talk about the cool stuff you do at Axi! As a Backend Developer at Axi, you will architect and build robust systems, optimizing performance for speed and reliability. You'll ensure security and compliance with industry standards, integrating with third-party APIs and trade execution. Transitioning to microservices architecture, you'll design scalable, modular solutions for improved maintainability. Implementing CI/CD pipelines streamlines development and deployment processes, while monitoring and logging...