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53 Contract API jobs in City of London + 20 miles
276 exact matches jobs are outside your preferred location
At Trustpilot, we're on an incredible journey. We're a profitable, high-growth FTSE-250 company with a big vision: to become the universal symbol of trust. We run the world's largest independent consumer review platform, and while we've come a long way, there's still so much exciting work to do. Come join us at the heart of trust! We are growing our engineering teams at Trustpilot and are looking to welcome a mid-level Fullstack Software Engineer within our consumer voice team! You will join a cross-functional team with full ownership of our products and codebase, where you will take part in every step of the development process, from ideation to maintenance. A place where you can grow as an individual, while also having an influence (or even leading) on the direction of projects and technological choices.
At Trustpilot, we're on an incredible journey. We're a profitable, high-growth FTSE-250 company with a big vision: to become the universal symbol of trust. We run the world's largest independent consumer review platform, and while we've come a long way, there's still so much exciting work to do. Come join us at the heart of trust! We are growing our engineering teams at Trustpilot and are looking to welcome a mid-level Fullstack Software Engineer within our consumer voice team! You will join a cross-functional team with full ownership of our products and codebase, where you will take part in every step of the development process, from ideation to maintenance. A place where you can grow as an individual, while also having an influence (or even leading) on the direction of projects and technological choices.
Our goal is to help our clients keep moving forward. We work with them to build the skills and capabilities they need to stay ahead of the competition, and we know our success only happens when they succeed. We're a team of curious, talented people, and we're committed to making YLD a place where great people want to work, grow, and stay. We're a remote-first consultancy specialising in software engineering, product design, and data. Our teams are based across London, Lisbon, and Porto, and we create digital solutions that continue to deliver value long after our work is done. As a Senior Software Engineer at YLD, you'll be part of a client team building innovative products. We're looking for someone curious, passionate, driven, and enthusiastic. You should be skilled in problem-solving and experienced in designing scalable, resilient, and fault-tolerant architectures
Our goal is to help our clients keep moving forward. We work with them to build the skills and capabilities they need to stay ahead of the competition, and we know our success only happens when they succeed. We're a team of curious, talented people, and we're committed to making YLD a place where great people want to work, grow, and stay. We're a remote-first consultancy specialising in software engineering, product design, and data. Our teams are based across London, Lisbon, and Porto, and we create digital solutions that continue to deliver value long after our work is done. As a Senior Software Engineer at YLD, you'll be part of a client team building innovative products. We're looking for someone curious, passionate, driven, and enthusiastic. You should be skilled in problem-solving and experienced in designing scalable, resilient, and fault-tolerant architectures
At Moody's, we unite the brightest minds to turn todays risks into tomorrows opportunities. We do this by striving to create an inclusive environment where everyone feels welcome to be who they arewith the freedom to exchange ideas, think innovatively, and listen to each other and customers in meaningful ways. Moodys is transforming how the world sees risk. As a global leader in ratings and integrated risk assessment, were advancing AI to move from insight to actionenabling intelligence that not only understands complexity but responds to it. We decode risk to unlock opportunity, helping our clients navigate uncertainty with clarity, speed, and confidence. If you are excited about this opportunity but do not meet every single requirement, please apply! You still may be a great fit for this role or other open roles.
At Moody's, we unite the brightest minds to turn todays risks into tomorrows opportunities. We do this by striving to create an inclusive environment where everyone feels welcome to be who they arewith the freedom to exchange ideas, think innovatively, and listen to each other and customers in meaningful ways. Moodys is transforming how the world sees risk. As a global leader in ratings and integrated risk assessment, were advancing AI to move from insight to actionenabling intelligence that not only understands complexity but responds to it. We decode risk to unlock opportunity, helping our clients navigate uncertainty with clarity, speed, and confidence. If you are excited about this opportunity but do not meet every single requirement, please apply! You still may be a great fit for this role or other open roles.
LemFi (Series B) is building the go-to financial app for the Global South. Moving to a new country shouldnt mean starting from zero. That's why our team of 400+ spanning 20+ countries is building a financial ecosystem that helps immigrants stay connected to home, build stability, and create wealth regardless of where they are from or where they live. What began as fast, affordable remittances is now evolving into a complete platform for multi-currency accounts, payments, credit, and long-term financial growth. With over 2 million users across the globe, we process over $1.5B in monthly transactions to 30+ countries , proving that borders shouldn't limit financial opportunity. The Role - As an Engineering Manager within the Remittance Platform, you will lead the teams powering tens of millions of cross-border transactions each month.
LemFi (Series B) is building the go-to financial app for the Global South. Moving to a new country shouldnt mean starting from zero. That's why our team of 400+ spanning 20+ countries is building a financial ecosystem that helps immigrants stay connected to home, build stability, and create wealth regardless of where they are from or where they live. What began as fast, affordable remittances is now evolving into a complete platform for multi-currency accounts, payments, credit, and long-term financial growth. With over 2 million users across the globe, we process over $1.5B in monthly transactions to 30+ countries , proving that borders shouldn't limit financial opportunity. The Role - As an Engineering Manager within the Remittance Platform, you will lead the teams powering tens of millions of cross-border transactions each month.
Senior Data Engineer - Remote, UK Timezone - Live shows make us feel good. They're a time to hang with our friends, discover new artists or lose ourselves on a dancefloor. We're on a mission to bring all of this to more fans, more often and that's where you come in. We're looking for a Senior Data Engineer to join our rapidly evolving Data Platform team, to help us scale our data platform to make DICE more reliable and impactful for our partners and customers. At DICE, you'll be part of the company that's redefining live entertainment. It's a place where you can be yourself, influence the culture, and create work that you're proud of. About the role - You're an experienced individual who is passionate about building and scaling data products, enhancing data platforms, and comfortable supporting the diverse needs of multiple teams.
Senior Data Engineer - Remote, UK Timezone - Live shows make us feel good. They're a time to hang with our friends, discover new artists or lose ourselves on a dancefloor. We're on a mission to bring all of this to more fans, more often and that's where you come in. We're looking for a Senior Data Engineer to join our rapidly evolving Data Platform team, to help us scale our data platform to make DICE more reliable and impactful for our partners and customers. At DICE, you'll be part of the company that's redefining live entertainment. It's a place where you can be yourself, influence the culture, and create work that you're proud of. About the role - You're an experienced individual who is passionate about building and scaling data products, enhancing data platforms, and comfortable supporting the diverse needs of multiple teams.
Build your future with Sovos. If you're seeking a career where innovation meets impact, you've come to the right place. As a global leader, Sovos is transforming tax compliance from a business requirement to a force for growth while revolutionizing how businesses navigate the ever-changing regulatory landscape. At Sovos, we're dedicated to more than just solving compliance challenges - we're committed to making a positive and lasting difference in everything we do. Our teams operate on the modern edge of digital technology, working not only to solve complex business challenges but also to enrich our personal, professional, and local communities. Our purpose-built systems provide the tools you need to thrive in a world where governments demand increased visibility, faster reporting and greater control over business processes. Excited about the possibilities? So are we!
Build your future with Sovos. If you're seeking a career where innovation meets impact, you've come to the right place. As a global leader, Sovos is transforming tax compliance from a business requirement to a force for growth while revolutionizing how businesses navigate the ever-changing regulatory landscape. At Sovos, we're dedicated to more than just solving compliance challenges - we're committed to making a positive and lasting difference in everything we do. Our teams operate on the modern edge of digital technology, working not only to solve complex business challenges but also to enrich our personal, professional, and local communities. Our purpose-built systems provide the tools you need to thrive in a world where governments demand increased visibility, faster reporting and greater control over business processes. Excited about the possibilities? So are we!
We are looking for an experienced Full Stack Engineer to join our team in Central London. This role is focused on building and enhancing our Expenses and Procurement product suite. Tipalti Engineering - Our tech teams are the engine behind our business. Tipalti's technology ecosystem is extremely rich, and we continually add new features to our products, ensuring we meet our clients' needs at scale. Our tech teams maintain a fast-paced, start-up vibe that encourages innovation and critical thinking. At Tipalti, you'll have the opportunity to work with a diverse, global team of engineers, developers, and product leaders who are collectively building the future of our best-in-class product suite as we transform financial operations. The Role - You will be instrumental in building new products to significantly expand Tipalti's offering into brand new areas.
We are looking for an experienced Full Stack Engineer to join our team in Central London. This role is focused on building and enhancing our Expenses and Procurement product suite. Tipalti Engineering - Our tech teams are the engine behind our business. Tipalti's technology ecosystem is extremely rich, and we continually add new features to our products, ensuring we meet our clients' needs at scale. Our tech teams maintain a fast-paced, start-up vibe that encourages innovation and critical thinking. At Tipalti, you'll have the opportunity to work with a diverse, global team of engineers, developers, and product leaders who are collectively building the future of our best-in-class product suite as we transform financial operations. The Role - You will be instrumental in building new products to significantly expand Tipalti's offering into brand new areas.
About LILT - AI is changing how the world communicates and LILT is leading that transformation. We're on a mission to make the world's information accessible to everyone , regardless of the language they speak. We use cutting-edge AI, machine translation, and human-in-the-loop expertise to translate content faster, more accurately, and more cost-effectively without compromising on brand, voice, or quality. At LILT, we empower our teammates with leading tools, global collaboration, and growth opportunities to do their best work. Our company virtues Work together, win together; Find a way or make one; Quicker than they expect; Quality is Job 1 guide everything we do. We are trusted by Intel Corporation, Canva, the United States Department of Defense, the United States Air Force, ASICS, and hundreds of global Enterprises.
About LILT - AI is changing how the world communicates and LILT is leading that transformation. We're on a mission to make the world's information accessible to everyone , regardless of the language they speak. We use cutting-edge AI, machine translation, and human-in-the-loop expertise to translate content faster, more accurately, and more cost-effectively without compromising on brand, voice, or quality. At LILT, we empower our teammates with leading tools, global collaboration, and growth opportunities to do their best work. Our company virtues Work together, win together; Find a way or make one; Quicker than they expect; Quality is Job 1 guide everything we do. We are trusted by Intel Corporation, Canva, the United States Department of Defense, the United States Air Force, ASICS, and hundreds of global Enterprises.
Experience with API design and implementing authentication/authorisation flows
Experience with API design and implementing authentication/authorisation flows
Familiarity with real-time data processing, event-driven systems, and API-first design.
Familiarity with real-time data processing, event-driven systems, and API-first design.
NEW
Experience and knowledge of API testing and the use of Postman
Experience and knowledge of API testing and the use of Postman
Azure API Management (APIM)
Azure API Management (APIM)
Select, implement, and optimise testing tools and environments across functional, API, and performance testing.
Select, implement, and optimise testing tools and environments across functional, API, and performance testing.
NEW
The OpenPayd platform delivers a suite of banking and payments infrastructure: accounts in over 40 currencies, FX, on/off ramp, international and domestic payments, Open Banking services all via a single API.
The OpenPayd platform delivers a suite of banking and payments infrastructure: accounts in over 40 currencies, FX, on/off ramp, international and domestic payments, Open Banking services all via a single API.
Familiarity with API design and working in distributed systems
Familiarity with API design and working in distributed systems
NEW
Being able to go into the details of API design, payment messages or whatever is required.
Being able to go into the details of API design, payment messages or whatever is required.
NEW
Strong knowledge of C++ and API design
Strong knowledge of C++ and API design
NEW
Proficiency in API design and integration.
Proficiency in API design and integration.
NEW
Conduct API testing to ensure robust and reliable integration between services. * Understanding of API testing , including tools like Postman or similar.
Conduct API testing to ensure robust and reliable integration between services. * Understanding of API testing , including tools like Postman or similar.
NEW
Strong knowledge of C++ and API design Api DesignC++Linux
Strong knowledge of C++ and API design Api DesignC++Linux
Experience with Azure services such as Azure App Services, Azure Functions, Azure API Management, Azure Postgres Database, VPN, PrivateLink.
Experience with Azure services such as Azure App Services, Azure Functions, Azure API Management, Azure Postgres Database, VPN, PrivateLink.
Currently, our microservices communicate via REST API calls, fostering seamless integration between different services.
Currently, our microservices communicate via REST API calls, fostering seamless integration between different services.
Proficient in headless CMS integrations (Kontent.ai, Contentful) and API-driven development
Proficient in headless CMS integrations (Kontent.ai, Contentful) and API-driven development
Experience in consuming a RESTful API.
Experience in consuming a RESTful API.
Support reporting automation for email, push, and newsletter engagement (e.g., SailThru API integrations, open/click/bounce analysis).
Support reporting automation for email, push, and newsletter engagement (e.g., SailThru API integrations, open/click/bounce analysis).
Related Jobs
Locations
- London
- Central London
- East London
- West London
- West End
- South East London
- Moorgate, City of London
- North London
- Euston, North West London
- North West London
- Milton Keynes
- Cambridge
- Essex
- Leeds
- Cardiff
- Manchester
- Lancashire
- Edinburgh
- East Midlands
- Southampton
- Glasgow
- Yorkshire
- South West London
- South East
- Doncaster
- Hertfordshire
- Derby
- Surrey
- Sheffield
- Scotland
- East Anglia
- North East
- Bedford
- Watford
- Reading
- Wales
- Bristol
- Midlands
- Birmingham
- Newcastle Upon Tyne
- Belfast
- Oxfordshire
- Chester
- Cambridgeshire
- West Yorkshire
- Midlothian
- Hampshire
- Ipswich
- Staffordshire
- Nottinghamshire