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7 Contract API jobs in City of London + 20 miles
106 exact matches jobs are outside your preferred location
A role that provides a foundation for growth into more senior technical leadership roles. The Software Engineer is a hands-on contributor responsible for delivering secure, maintainable, and performant software as part of a cross-functional Agile team. Working closely with Product, QA, DevOps, and fellow engineers, this role helps shape technical solutions, contributes to quality practices, and continuously builds their own technical capabilities. We are transforming our Salesforce product, and you will likely be a Salesforce Certified Administrator (ADM201) and Salesforce Platform I Developer with 23+ years of hands-on experience with Apex, SOQL/SOSL, Lightning Web Components (LWC), and Aura Components, with experience building and maintaining custom objects, triggers, batch jobs, asynchronous processing, and declarative automation. * Salesforce Platform App Builder
A role that provides a foundation for growth into more senior technical leadership roles. The Software Engineer is a hands-on contributor responsible for delivering secure, maintainable, and performant software as part of a cross-functional Agile team. Working closely with Product, QA, DevOps, and fellow engineers, this role helps shape technical solutions, contributes to quality practices, and continuously builds their own technical capabilities. We are transforming our Salesforce product, and you will likely be a Salesforce Certified Administrator (ADM201) and Salesforce Platform I Developer with 23+ years of hands-on experience with Apex, SOQL/SOSL, Lightning Web Components (LWC), and Aura Components, with experience building and maintaining custom objects, triggers, batch jobs, asynchronous processing, and declarative automation. * Salesforce Platform App Builder
At Goodnotes, we believe that every individual holds untapped potential waiting to be unleashed. By reimagining the way we interact with information, we're merging human creativity with the breakthrough capabilities of AI. Our renewed vision and mission drive us to create the best medium for human and AI collaboration, empowering users to explore new dimensions of productivity, creativity, and learning. Join us on this journey as we transform digital note-taking into an inspiring and innovative experience. Dream big - Be visionary, strategic, and open to innovation - Build great things - Work in service of our users, always improving and pushing higher - Operate like an owner - Take responsibility with bold decision-making and bias for action - Win like a sports team - Be trusting and collaborative while empowering others - Learn and grow fast - Never stop learning an
At Goodnotes, we believe that every individual holds untapped potential waiting to be unleashed. By reimagining the way we interact with information, we're merging human creativity with the breakthrough capabilities of AI. Our renewed vision and mission drive us to create the best medium for human and AI collaboration, empowering users to explore new dimensions of productivity, creativity, and learning. Join us on this journey as we transform digital note-taking into an inspiring and innovative experience. Dream big - Be visionary, strategic, and open to innovation - Build great things - Work in service of our users, always improving and pushing higher - Operate like an owner - Take responsibility with bold decision-making and bias for action - Win like a sports team - Be trusting and collaborative while empowering others - Learn and grow fast - Never stop learning an
Snyk is the leader in secure AI software development, helping millions of developers develop fast and stay secure as AI transforms how software is built. Our AI-native Developer Security Platform integrates seamlessly into development and security workflows, making it easy to find, fix, and prevent vulnerabilities from code and dependencies to containers and cloud. Our mission is to empower every developer to innovate securely in the AI era boosting productivity while reducing business risk. Were not your average security company - we build Snyk on One Team, Care Deeply, Customer Centric, and Forward Thinking. Its how we stay driven, supportive, and always one step ahead as AI reshapes our world. Why this role? As a Software Engineer , youll play a key role in shaping how modern organizations build and secure software at scale.
Snyk is the leader in secure AI software development, helping millions of developers develop fast and stay secure as AI transforms how software is built. Our AI-native Developer Security Platform integrates seamlessly into development and security workflows, making it easy to find, fix, and prevent vulnerabilities from code and dependencies to containers and cloud. Our mission is to empower every developer to innovate securely in the AI era boosting productivity while reducing business risk. Were not your average security company - we build Snyk on One Team, Care Deeply, Customer Centric, and Forward Thinking. Its how we stay driven, supportive, and always one step ahead as AI reshapes our world. Why this role? As a Software Engineer , youll play a key role in shaping how modern organizations build and secure software at scale.
About Airwallex - Airwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 200,000 businesses worldwide including Brex, Rippling, Navan, Qantas, SHEIN and many more with fully integrated solutions to manage everything from business accounts, payments, spend management and treasury, to embedded finance at a global scale. Proudly founded in Melbourne, we have a team of over 2,000 of the brightest and most innovative people in tech across 26 offices around the globe. Valued at US$8 billion and backed by world-leading investors including T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital, Airwallex is leading the charge in building the global payments and financial platform of the future
About Airwallex - Airwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 200,000 businesses worldwide including Brex, Rippling, Navan, Qantas, SHEIN and many more with fully integrated solutions to manage everything from business accounts, payments, spend management and treasury, to embedded finance at a global scale. Proudly founded in Melbourne, we have a team of over 2,000 of the brightest and most innovative people in tech across 26 offices around the globe. Valued at US$8 billion and backed by world-leading investors including T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital, Airwallex is leading the charge in building the global payments and financial platform of the future
Job title: IAM Engineer - Location: London / Bristol / Edinburgh - Hybrid - Salary: £68,000 - £85,000 - Team: Identity & Access management team - Reporting To: Software Engineering Manager - This role is based in the UK and requires existing right to work in the UK. At this time, we are not able to offer visa sponsorship for this role. We are committed to building a diverse, global team and our sponsorship policy is evaluated on a role-by-role basis. We encourage you to keep an eye on our careers site to stay informed about future opportunities where we are able to offer visa sponsorship. Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination. We help energy companies overcome today's challenges while accelerating the shift to a clean, electrified future. Our platform orchestrates millions of real-time decisions across homes,
Job title: IAM Engineer - Location: London / Bristol / Edinburgh - Hybrid - Salary: £68,000 - £85,000 - Team: Identity & Access management team - Reporting To: Software Engineering Manager - This role is based in the UK and requires existing right to work in the UK. At this time, we are not able to offer visa sponsorship for this role. We are committed to building a diverse, global team and our sponsorship policy is evaluated on a role-by-role basis. We encourage you to keep an eye on our careers site to stay informed about future opportunities where we are able to offer visa sponsorship. Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination. We help energy companies overcome today's challenges while accelerating the shift to a clean, electrified future. Our platform orchestrates millions of real-time decisions across homes,
Taskrabbit is a marketplace platform that conveniently connects people with Taskers to handle everyday home to-do's, such as furniture assembly, handyman work, moving help, and much more. At Taskrabbit, we want to transform lives one task at a time. As a company we celebrate innovation, inclusion and hard work. Our culture is collaborative, pragmatic, and fast-paced. We're looking for talented, entrepreneurially minded and data-driven people who also have a passion for helping people do what they love. Together with IKEA, we're creating more opportunities for people to earn a consistent, meaningful income on their own terms by building lasting relationships with clients in communities around the world. Taskrabbit is a hybrid company with employees distributed across the US and EU and a Built In Best Places to Work (2022, 2023, 2024) continually ranked across multiple
Taskrabbit is a marketplace platform that conveniently connects people with Taskers to handle everyday home to-do's, such as furniture assembly, handyman work, moving help, and much more. At Taskrabbit, we want to transform lives one task at a time. As a company we celebrate innovation, inclusion and hard work. Our culture is collaborative, pragmatic, and fast-paced. We're looking for talented, entrepreneurially minded and data-driven people who also have a passion for helping people do what they love. Together with IKEA, we're creating more opportunities for people to earn a consistent, meaningful income on their own terms by building lasting relationships with clients in communities around the world. Taskrabbit is a hybrid company with employees distributed across the US and EU and a Built In Best Places to Work (2022, 2023, 2024) continually ranked across multiple
Intern Business Units: MT - Trading - Company Description - Location : London - Duration : 6 months, full time - Start : As soon as possible - Why Statkraft? Statkraft has been making clean energy possible for over a century. Thats what we offer. 125 years of unrivalled expertise in supplying the world with what it needs most. We envision a world that runs entirely on renewable energy. Because in the fight against climate change, we dont see renewable energy as part of the solution we believe it must be the solution. With us, youll shape a career that is truly forward-facing with many amazing opportunities and offerings to match. But theres more work to be done thats why we need you to join us. Working in Proprietary Trading - The Proprietary Trading department at Statkraft is known for its innovative and data-driven approach, and our team members are expected to have
Intern Business Units: MT - Trading - Company Description - Location : London - Duration : 6 months, full time - Start : As soon as possible - Why Statkraft? Statkraft has been making clean energy possible for over a century. Thats what we offer. 125 years of unrivalled expertise in supplying the world with what it needs most. We envision a world that runs entirely on renewable energy. Because in the fight against climate change, we dont see renewable energy as part of the solution we believe it must be the solution. With us, youll shape a career that is truly forward-facing with many amazing opportunities and offerings to match. But theres more work to be done thats why we need you to join us. Working in Proprietary Trading - The Proprietary Trading department at Statkraft is known for its innovative and data-driven approach, and our team members are expected to have
Join nPlan where AI meets the future of construction - We're nPlan, a Series B startup backed by leading investors, including GV (formerly Google Ventures) and DeepMind's founder, Demis Hassabis. Our technology helps the world's biggest construction projects make faster, more confident, data-driven decisions. By combining one of the world's largest datasets of project plans with advanced machine learning, we forecast project outcomes and reduce risk reshaping how infrastructure gets built. We work with complex graph data (each with 10,000+ nodes), applying multiple ML and LLM approaches to understanding the data, extracting meaningful insights from it using a proprietary forecasting engine, and empowering deep human interactions - all of which must work efficiently and robustly in production. As a startup, we also keep agile in a fast-moving environment! The Role
Join nPlan where AI meets the future of construction - We're nPlan, a Series B startup backed by leading investors, including GV (formerly Google Ventures) and DeepMind's founder, Demis Hassabis. Our technology helps the world's biggest construction projects make faster, more confident, data-driven decisions. By combining one of the world's largest datasets of project plans with advanced machine learning, we forecast project outcomes and reduce risk reshaping how infrastructure gets built. We work with complex graph data (each with 10,000+ nodes), applying multiple ML and LLM approaches to understanding the data, extracting meaningful insights from it using a proprietary forecasting engine, and empowering deep human interactions - all of which must work efficiently and robustly in production. As a startup, we also keep agile in a fast-moving environment! The Role
About Ultromics - Picture yourself at one of the world's most innovative companies, providing life-saving AI solutions that can make a real difference in helping to combat one of the world's biggest health burdens. Surrounded by teams and people who challenge you, support you, and inspire you to be extraordinary. Are you ready to join the fight against heart failure? We are redefining Cardiovascular Medicine through transformational AI solutions and work alongside major collaborations such as Mayo Clinic and the NHS England, with one shared ambition, to save lives. Ultromics is a global leader in AI-powered cardiovascular imaging diagnostics, transforming how heart disease is detected, assessed, and managed. Spun out from the University of Oxford, UK and built on a decade of world-leading research, Ultromics is redefining echocardiography with solutions that deliver .
About Ultromics - Picture yourself at one of the world's most innovative companies, providing life-saving AI solutions that can make a real difference in helping to combat one of the world's biggest health burdens. Surrounded by teams and people who challenge you, support you, and inspire you to be extraordinary. Are you ready to join the fight against heart failure? We are redefining Cardiovascular Medicine through transformational AI solutions and work alongside major collaborations such as Mayo Clinic and the NHS England, with one shared ambition, to save lives. Ultromics is a global leader in AI-powered cardiovascular imaging diagnostics, transforming how heart disease is detected, assessed, and managed. Spun out from the University of Oxford, UK and built on a decade of world-leading research, Ultromics is redefining echocardiography with solutions that deliver .
Snyk is the leader in secure AI software development, helping millions of developers develop fast and stay secure as AI transforms how software is built. Our AI-native Developer Security Platform integrates seamlessly into development and security workflows, making it easy to find, fix, and prevent vulnerabilities from code and dependencies to containers and cloud. Our mission is to empower every developer to innovate securely in the AI era boosting productivity while reducing business risk. Were not your average security company - we build Snyk on One Team, Care Deeply, Customer Centric, and Forward Thinking. Its how we stay driven, supportive, and always one step ahead as AI reshapes our world. Why this role? As a Senior Software Engineer , youll play a key role in shaping how modern organizations build and secure software at scale.
Snyk is the leader in secure AI software development, helping millions of developers develop fast and stay secure as AI transforms how software is built. Our AI-native Developer Security Platform integrates seamlessly into development and security workflows, making it easy to find, fix, and prevent vulnerabilities from code and dependencies to containers and cloud. Our mission is to empower every developer to innovate securely in the AI era boosting productivity while reducing business risk. Were not your average security company - we build Snyk on One Team, Care Deeply, Customer Centric, and Forward Thinking. Its how we stay driven, supportive, and always one step ahead as AI reshapes our world. Why this role? As a Senior Software Engineer , youll play a key role in shaping how modern organizations build and secure software at scale.
Are you a Software Engineer whos energised by solving real problems, comfortable with the unknown, and committed to building more than just good enough? Mention Me is revolutionising the world of referral, AdTech, and influencer marketing. We have already delivered $2bn in revenue for 500+ brands. We are shifting gears to scale up massively, moving from a single-language legacy stack to a modern, decoupled architecture driven by data and AI. We're entering an exciting new chapter. We're evolving our tech stack, embracing modern technologies, and building what's next. This isn't a role for someone who needs a playbook. We're looking for someone who can navigate ambiguity, pivot when the landscape shifts, and make smart decisions about which tools to use. If you're energised by figuring things out, learning constantly, and shipping work that genuinely moves the needle,
Are you a Software Engineer whos energised by solving real problems, comfortable with the unknown, and committed to building more than just good enough? Mention Me is revolutionising the world of referral, AdTech, and influencer marketing. We have already delivered $2bn in revenue for 500+ brands. We are shifting gears to scale up massively, moving from a single-language legacy stack to a modern, decoupled architecture driven by data and AI. We're entering an exciting new chapter. We're evolving our tech stack, embracing modern technologies, and building what's next. This isn't a role for someone who needs a playbook. We're looking for someone who can navigate ambiguity, pivot when the landscape shifts, and make smart decisions about which tools to use. If you're energised by figuring things out, learning constantly, and shipping work that genuinely moves the needle,
Snyk is the leader in secure AI software development, helping millions of developers develop fast and stay secure as AI transforms how software is built. Our AI-native Developer Security Platform integrates seamlessly into development and security workflows, making it easy to find, fix, and prevent vulnerabilities from code and dependencies to containers and cloud. Our mission is to empower every developer to innovate securely in the AI era boosting productivity while reducing business risk. Were not your average security company - we build Snyk on One Team, Care Deeply, Customer Centric, and Forward Thinking. Its how we stay driven, supportive, and always one step ahead as AI reshapes our world. Our opportunity - As an Associate Software Engineer on the Rules Intelligence team, you'll be at the forefront of building the future of application security.
Snyk is the leader in secure AI software development, helping millions of developers develop fast and stay secure as AI transforms how software is built. Our AI-native Developer Security Platform integrates seamlessly into development and security workflows, making it easy to find, fix, and prevent vulnerabilities from code and dependencies to containers and cloud. Our mission is to empower every developer to innovate securely in the AI era boosting productivity while reducing business risk. Were not your average security company - we build Snyk on One Team, Care Deeply, Customer Centric, and Forward Thinking. Its how we stay driven, supportive, and always one step ahead as AI reshapes our world. Our opportunity - As an Associate Software Engineer on the Rules Intelligence team, you'll be at the forefront of building the future of application security.
About the Opportunity - We are looking for an experienced Partner Marketing Manager to help disrupt the DXP category as we enter an ambitious new phase of growth. Contentful is a composable digital experience platform designed for structured content, personalization at scale, powerful AI orchestration and management capabilities, along with the best-in-class APIs, allowing digital teams and developers to ship personalized, content-driven experiences faster, to any type of digital endpoint. Companies, including Spotify, Sephora, Harley-Davidson, Kraft Heinz, Red Bull, WeWork, Lyft, Peloton, and Urban Outfitters, rely on Contentful to manage digital experiences as part of their modern web stacks. Reporting to the Global Head of Partner Marketing, you will be responsible for driving growth through our global partner ecosystem, with a focus on Americas and EMEA System ...
About the Opportunity - We are looking for an experienced Partner Marketing Manager to help disrupt the DXP category as we enter an ambitious new phase of growth. Contentful is a composable digital experience platform designed for structured content, personalization at scale, powerful AI orchestration and management capabilities, along with the best-in-class APIs, allowing digital teams and developers to ship personalized, content-driven experiences faster, to any type of digital endpoint. Companies, including Spotify, Sephora, Harley-Davidson, Kraft Heinz, Red Bull, WeWork, Lyft, Peloton, and Urban Outfitters, rely on Contentful to manage digital experiences as part of their modern web stacks. Reporting to the Global Head of Partner Marketing, you will be responsible for driving growth through our global partner ecosystem, with a focus on Americas and EMEA System ...
More Than Just A Job - The goal is simple, to make healthy eating easy. To do this we need your support, building a scalable and maintainable rails eco-system that propels one of the UK's most loved start-ups forward. As a proud B-Corp we focus on using business as a force for good. We do this by balancing out people and planet with profit. For every recipe box bought we donate the equivalent of a school meal to a less developed country (over 20 million meals donated and counting...) and we have also pledged to go Net Zero by 2030 but there are so many other initiatives that we would love to tell you about! If you would like to join one of the UKs most loved start-ups and make a positive impact on people's lives, then we would love to speak with you. What we are looking for - As a Principal Engineer, you will play a pivotal role in leading and driving technical excell
More Than Just A Job - The goal is simple, to make healthy eating easy. To do this we need your support, building a scalable and maintainable rails eco-system that propels one of the UK's most loved start-ups forward. As a proud B-Corp we focus on using business as a force for good. We do this by balancing out people and planet with profit. For every recipe box bought we donate the equivalent of a school meal to a less developed country (over 20 million meals donated and counting...) and we have also pledged to go Net Zero by 2030 but there are so many other initiatives that we would love to tell you about! If you would like to join one of the UKs most loved start-ups and make a positive impact on people's lives, then we would love to speak with you. What we are looking for - As a Principal Engineer, you will play a pivotal role in leading and driving technical excell
Our Mission - Join us in shaping the future of paid search intelligence. Adthena is an award-winning search intelligence platform powered by patented AI technology and a team of dedicated experts. We help brands, marketers, and agencies dominate their competitive landscapes with unparalleled insights into the paid search market. Our Whole Market View, Smart Monitor, and Local View solutions give clients the clarity to optimize spend, increase ROI, and stay ahead of the competition. Trusted by global brands like Citibank, LOréal, and Volvo, and backed by Updata Partners, weve been redefining search intelligence since 2012. Ready to make an impact in an industry-leading company? Lets do it together. In 2024, Adthena continued its winning streak, earning 9 major search industry awards. Highlights include Best AI Search Software Solution at the Global Search Awards, Best
Our Mission - Join us in shaping the future of paid search intelligence. Adthena is an award-winning search intelligence platform powered by patented AI technology and a team of dedicated experts. We help brands, marketers, and agencies dominate their competitive landscapes with unparalleled insights into the paid search market. Our Whole Market View, Smart Monitor, and Local View solutions give clients the clarity to optimize spend, increase ROI, and stay ahead of the competition. Trusted by global brands like Citibank, LOréal, and Volvo, and backed by Updata Partners, weve been redefining search intelligence since 2012. Ready to make an impact in an industry-leading company? Lets do it together. In 2024, Adthena continued its winning streak, earning 9 major search industry awards. Highlights include Best AI Search Software Solution at the Global Search Awards, Best
Experience with API design and implementing authentication/authorisation flows
Experience with API design and implementing authentication/authorisation flows
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.
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Experience in system integration and API development.
Experience in system integration and API development.
Translate datasets and domain requirements into a data model, SQL schemas, and API-driven back-end services. Applicants should have a strong knowledge of modern back-end development using C# and .NET (Core or later), including API design and modular service architecture along with analytical and problem solving skills and effective communication.
Translate datasets and domain requirements into a data model, SQL schemas, and API-driven back-end services. Applicants should have a strong knowledge of modern back-end development using C# and .NET (Core or later), including API design and modular service architecture along with analytical and problem solving skills and effective communication.
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Software Engineer - Python, Cloud Architecture, Databricks (or similar tech stack) - hybrid
Software Engineer - Python, Cloud Architecture, Databricks (or similar tech stack) - hybrid
FactSet Europe Ltd
London
Competitive
Proficient in Python/Typescript/Nodejs , with strong skills in API development .
Proficient in Python/Typescript/Nodejs , with strong skills in API development .
Senior/ Staff Software Engineer, Core Banking (Relocate to Singapore)
Senior/ Staff Software Engineer, Core Banking (Relocate to Singapore)
Airwallex (UK) Limited
London
Competitive
Experience in API design best practices
Experience in API design best practices
You possess a strong understanding of cloud computing, microservices, API design, and event-driven architectures.
You possess a strong understanding of cloud computing, microservices, API design, and event-driven architectures.
The Tyk API Management platform is helping to drive the connected world and power new products and services. Weve started by building an API Management platform.
The Tyk API Management platform is helping to drive the connected world and power new products and services. Weve started by building an API Management platform.
AI Engineer, Software Engineer, Machine Learning Engineer, LLM, GenAI, Agentic, LangChain, LangGraph, Langfuse, Python, Backend, API, MLflow, W&B, DVC, Evaluation, RAG, Retrieval, Semantic Search, Multimodal, Computer Vision, Speech-to-Text, Cloud, AWS, Azure, Model Deployment, UK Remote, Contractor, EdTech, Assessment Systems, Automated Scoring, Git, GitHub, UK Hours
AI Engineer, Software Engineer, Machine Learning Engineer, LLM, GenAI, Agentic, LangChain, LangGraph, Langfuse, Python, Backend, API, MLflow, W&B, DVC, Evaluation, RAG, Retrieval, Semantic Search, Multimodal, Computer Vision, Speech-to-Text, Cloud, AWS, Azure, Model Deployment, UK Remote, Contractor, EdTech, Assessment Systems, Automated Scoring, Git, GitHub, UK Hours
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Integrate automated API security testing workflows into the platform, ensuring reliability and accuracy of results.
Integrate automated API security testing workflows into the platform, ensuring reliability and accuracy of results.