21 senior software engineer jobs in London

About Us ClearBank was built on the belief that banking infrastructure would no longer slow down progress. Instead, it’s the catalyst that unlocks the potential to innovate. That’s why our clients — financial institutions from fintech’s and crypto platforms, to banks and credit unions — use our API to power their banking infrastructure. But we wouldn’t be ClearBank without our people. They’re what powers our innovative technology and the reason we love what we do every day. We’re a group of spirited people who are never afraid to challenge the norm – becoming stronger, more energised, and that much better when we’re together. It’s our belief in fairness, autonomy and choice that means our people are empowered with the tools to learn, grow, and contribute to ours and our clients’ success. Interested in joining us? Read on or visit our website for more information. About You You’ll be joining as a Senior Software Engineer for our Digital Assets team. Reporting to the...

About Us ClearBank was built on the belief that banking infrastructure would no longer slow down progress. Instead, it’s the catalyst that unlocks the potential to innovate. That’s why our clients — financial institutions from fintech’s and crypto platforms, to banks and credit unions — use our API to power their banking infrastructure. But we wouldn’t be ClearBank without our people. They’re what powers our innovative technology and the reason we love what we do every day. We’re a group of spirited people who are never afraid to challenge the norm – becoming stronger, more energised, and that much better when we’re together. It’s our belief in fairness, autonomy and choice that means our people are empowered with the tools to learn, grow, and contribute to ours and our clients’ success. Interested in joining us? Read on or visit our website for more information. About You You’ll be joining as a Senior Software Engineer for our Digital Assets team. Reporting to the...

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...

LMAX Group is a FinTech company that designs, develops, builds and runs leading edge financial exchanges in major financial centres around the world, specialising in fiat and crypto currencies. We are growing, and we want a senior technologist to join us for the next step in their career. We're creating a new position, one that blends engineering, operations, and team management. The Role Infrastructure & Operations Team Leads are responsible for managing a team of data centre and infrastructure specialists, and are the focal point of our operational resilience, incident response, and infrastructure lifecycle functions. Our newly forming Infrastructure Team will own our operational and monitoring functions, as well as our global infrastructure provisioning and build processes, helping define how this team functions and provides services to teams. They will drive automation and improvements to streamline these areas. A key responsibility for the success of this role will be...

Blockchain.com is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are seeking a proactive and skilled Senior Front-End Engineer to join our lean, high-impact team and help shape the future of Web3. You’ll dive deep into building innovative financial and crypto-native products, services, and APIs, playing a pivotal role in delivering cutting-edge onchain solutions. As a key member of our Web3-focused crew, you’ll bring your expertise to craft seamless, user-centric experiences that push the boundaries of decentralized technology. In this role, you’ll lead by example—guiding technical discussions, shaping our front-end architecture, and championing best-in-class engineering practices. With a hands-on mindset and a passion for efficiency, you’ll collaborate...

LMAX Group is a FinTech company that designs, develops, builds and runs leading edge financial exchanges in major financial centres around the world, specialising in fiat and crypto currencies. We are growing, and we want a senior technologist to join us for the next step in their career. We're creating a new position, one that blends engineering, operations, and team management. The Role Infrastructure & Operations Team Leads are responsible for managing a team of data centre and infrastructure specialists, and are the focal point of our operational resilience, incident response, and infrastructure lifecycle functions. Our newly forming Infrastructure Team will own our operational and monitoring functions, as well as our global infrastructure provisioning and build processes, helping define how this team functions and provides services to teams. They will drive automation and improvements to streamline these areas. A key responsibility for the success of this role will...

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...

Blockchain is the world's leading software platform for digital assets. Founded in 2011, we provide the world’s largest and most trusted production blockchain platform, powering more than 75 million wallets. Together with our platform of liquidity and execution services, we share the passion to build an open, accessible and fair financial future, one piece of software at a time. We are looking to hire a Senior DevOps Engineer to join our Institutional team in our London office. Blockchain.com is a high-performance culture marked by fearlessness and hyper-productivity. You are a hardworking team player with a desire to learn and grow with us, someone who can work harder, faster, and smarter to deliver tangible results and process improvements. WHAT YOU WILL DO Use innovative cutting-edge technology to reduce complexity and improve trading performance. Partner closely with traders and engineers, taking ownership of both trading & operational issues. Design, maintain...

The Firm XTX Markets is an algorithmic trading firm that actively trades tens of thousands of instruments on over eighty venues with a daily volume of almost three hundred billion USD. We partner with counterparties, exchanges, and e-trading venues globally to provide consistent liquidity in the Equity, FX, Fixed Income, Commodity & Options markets, helping market participants throughout the world obtain the best prices in the various assets classes we cover. We leverage the talent of the people who work here, modern computational techniques and state-of-the-art research infrastructure to analyse large data sets across markets quickly and efficiently, to maximise the effectiveness of our proprietary trading algorithms. The models that drive our trading strategies have evolved considerably over the last 10 years, from econometric methods that gave our company its name, to trees, to neural networks, to modern deep learning architectures. We are actively seeking new methods...

Starling is the UK's first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. Read more about Our Story here. We're a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We're a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices. Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far...

Blockchain.com is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for a skilled, hands-on DeFi Software Engineer to sit on our Institutional Trading team. You will play a critical role in building financial and crypto-native trading strategies. As a Defi Software Engineer you will implement automated trading strategies on various blockchains, work with traders / quants to generate revenue, and be part of one of the most competitive trading desks WHAT YOU WILL DO Develop code (in Rust / Solidity / Python) to automate DeFi trading strategies Work closely with traders / quants on our Institutional Trading team Implement best practice code to automate strategies that run on DApps (Decentralized Apps) and take advantage of blockchain-specific...

Company Description ABOUT IQ-EQ We’re a leading Investor Services group offering end-to-end services in administration, accounting, reporting, regulatory and compliance needs of the investment sector worldwide.  We employ a global workforce of 5,800+ people across 25 jurisdictions and have assets under administration (AUA) exceeding US$750 billion. We work with 13 of the world’s top 15 private equity firms. Our services are underpinned by a Group-wide commitment to ESG and best-in-class technology including a global data platform and innovative proprietary tools supported by in-house experts. Above all, what makes us different is our people. Operating as trusted partners to our clients, we deliver intelligent solutions through a combination of technical expertise and strong relationships based on deep client understanding.  We’re driven by our Group purpose, to power people and possibilities. Job Description The successful candidate will be working on the continuous...

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...

Blockchain.com is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. Be at the forefront of financial innovation. Join Blockchain.com, a leading crypto exchange and wallet provider, and help us shape the future of finance. As part of our growing team, you will be working with a dynamic group of professionals and helping us maintain smooth and efficient IT operations. We're looking for an enthusiastic, detail- oriented Junior IT Support professional to join our team and grow with us. As a Junior IT Support Engineer , you will be responsible for troubleshooting and supporting our organisation's hardware and software solutions, ensuring all systems are running smoothly for our internal teams. You will be part of a collaborative IT support team, where you’ll be expected...

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...

Company Description ABOUT IQ-EQ We’re a leading Investor Services group offering end-to-end services in administration, accounting, reporting, regulatory and compliance needs of the investment sector worldwide.  We employ a global workforce of 5,800+ people across 25 jurisdictions and have assets under administration (AUA) exceeding US$750 billion. We work with 13 of the world’s top 15 private equity firms. Our services are underpinned by a Group-wide commitment to ESG and best-in-class technology including a global data platform and innovative proprietary tools supported by in-house experts. Above all, what makes us different is our people. Operating as trusted partners to our clients, we deliver intelligent solutions through a combination of technical expertise and strong relationships based on deep client understanding.  We’re driven by our Group purpose, to power people and possibilities. Job Description The successful candidate will be working on the continuous...

Company Description ABOUT IQ-EQ We’re a leading Investor Services group offering end-to-end services in administration, accounting, reporting, regulatory and compliance needs of the investment sector worldwide.  We employ a global workforce of 5,500+ people across 25 jurisdictions and have assets under administration (AUA) exceeding US$750 billion. We work with 13 of the world’s top 15 private equity firms. Our services are underpinned by a Group-wide commitment to ESG and best-in-class technology including a global data platform and innovative proprietary tools supported by in-house experts. Above all, what makes us different is our people. Operating as trusted partners to our clients, we deliver intelligent solutions through a combination of technical expertise and strong relationships based on deep client understanding.  We’re driven by our Group purpose, to power people and possibilities. Job Description The successful candidate will be working on the continuous...

Overview Connecting clients to markets – and talent to opportunity With 4,300 employees and over 400,000 retail and institutional clients from more than 80 offices spread across five continents, we’re a Fortune-100, Nasdaq-listed provider, connecting clients to the global markets – focusing on innovation, human connection, and providing world-class products and services to all types of investors. At StoneX, we offer you the opportunity to be part of an institutional-grade financial services network that connects companies, organizations, and investors to the global markets ecosystem. As a team member, you'll benefit from our unique blend of digital platforms, comprehensive clearing and execution services, personalized high-touch support, and deep industry expertise. Elevate your career with us and make a significant impact in the world of global finance. Retail : Empower individual investors – and yourself – in the world of retail through a range of different financial...

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...