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64 Contract API jobs in South East + 20 miles
Able to reproduce, isolate and explain issues using logs, API responses, and tests. * Familiar with API based integration methods, associated best practices, and related tools/frameworks (REST/JSON APIs, Postman).
Able to reproduce, isolate and explain issues using logs, API responses, and tests. * Familiar with API based integration methods, associated best practices, and related tools/frameworks (REST/JSON APIs, Postman).
Assistant Vice President, Cloud Engineer - AI Engineer
Assistant Vice President, Cloud Engineer - AI Engineer
MUFG Bank Ltd
City of London, London
Competitive
Experience with Azure API Management or similar API gateways. * API Development & Integration * REST API development and integration * API Management / API Gateway patterns
Experience with Azure API Management or similar API gateways. * API Development & Integration * REST API development and integration * API Management / API Gateway patterns
Contribute to and help shape technical forums and working groups, including areas such as API and architecture governance * Experience with REST API design in complex, multi-service environments
Contribute to and help shape technical forums and working groups, including areas such as API and architecture governance * Experience with REST API design in complex, multi-service environments
GraphQL for API ingress
GraphQL for API ingress
Through our API, we help partners to architect and build integrations to our world class-leading international finance products, which in turn improves Wise Platform by increasing the capabilities of our public API. * Designing and developing innovative new features that expand the functionality of Wise's services and exposing these features through the public API, enabling seamless integration with partner systems and empowering them to leverage the full potential of Wise's platform. * Diagnosing and resolving complex technical issues within the Wise product stack, providing second-line support to the API support team and ensuring timely resolution of partner inquiries and technical challenges. * Familiarity with Java (Spring), Kubernetes, AWS, and service mesh architectures and technologies such as RESTful APIs, API design, Swagger, OpenAPI, and OAuth2.
Through our API, we help partners to architect and build integrations to our world class-leading international finance products, which in turn improves Wise Platform by increasing the capabilities of our public API. * Designing and developing innovative new features that expand the functionality of Wise's services and exposing these features through the public API, enabling seamless integration with partner systems and empowering them to leverage the full potential of Wise's platform. * Diagnosing and resolving complex technical issues within the Wise product stack, providing second-line support to the API support team and ensuring timely resolution of partner inquiries and technical challenges. * Familiarity with Java (Spring), Kubernetes, AWS, and service mesh architectures and technologies such as RESTful APIs, API design, Swagger, OpenAPI, and OAuth2.
Own the design and delivery of significant backend systems and services across a product domain, from data modelling through API surface to operational concerns. * Flask and FastAPI, with strong typing and Pydantic powering automated documentation and API definitions.
Own the design and delivery of significant backend systems and services across a product domain, from data modelling through API surface to operational concerns. * Flask and FastAPI, with strong typing and Pydantic powering automated documentation and API definitions.
Technically, youre comfortable with Kubernetes and the cloud-native ecosystem, have working knowledge of at least one programming language, and can navigate cloud platforms and API integrations.
Technically, youre comfortable with Kubernetes and the cloud-native ecosystem, have working knowledge of at least one programming language, and can navigate cloud platforms and API integrations.
Mobile API abuse and session manipulation
Mobile API abuse and session manipulation
API and contract testing experience, with a point of view on test data and environment strategy.
API and contract testing experience, with a point of view on test data and environment strategy.
Partner with activation / onboarding and account management teams to translate customer requirements into scalable architectures, particularly where ERP, HRIS, and API integrations are core to the rollout. * Hands-on experience working with or alongside integration engineers, solution architects, or technical program managers on API-based integrations, including familiarity with common web, SSO, and ERP integration concepts.
Partner with activation / onboarding and account management teams to translate customer requirements into scalable architectures, particularly where ERP, HRIS, and API integrations are core to the rollout. * Hands-on experience working with or alongside integration engineers, solution architects, or technical program managers on API-based integrations, including familiarity with common web, SSO, and ERP integration concepts.
Signal Engineering: Maintain and optimise server-side conversion APIs (Meta CAPI, Google Enhanced Conversions, TikTok Events API), driving high Event Match Quality (EMQ) scores and hardening identifier coverage to supercharge our paid media performance.
Signal Engineering: Maintain and optimise server-side conversion APIs (Meta CAPI, Google Enhanced Conversions, TikTok Events API), driving high Event Match Quality (EMQ) scores and hardening identifier coverage to supercharge our paid media performance.
Were looking for a product Engineer whos AI-first in how you think and build, you thrive with real autonomy and you're energised by the scale of what's ahead. With a product first mindset, you'll work closely across our tight-knit team of 15 with Engineering, Product and Commercial, and you'll have genuine scope to shape how we build. This is a role with real purpose baked in! You believe technology can drive systemic change for people, for the planet and you want your day job to prove it. If that sounds like you, we'd love to talk. Requirements * Design, build, and maintain our core web application, APIs and data infrastructure. * Work with LLMs and ML methods to automate data operations and shape the AI-first customer experience we're building towards. * Own the full product lifecycle, from idea and prototype through to shipping and measuring real customer impact.
Were looking for a product Engineer whos AI-first in how you think and build, you thrive with real autonomy and you're energised by the scale of what's ahead. With a product first mindset, you'll work closely across our tight-knit team of 15 with Engineering, Product and Commercial, and you'll have genuine scope to shape how we build. This is a role with real purpose baked in! You believe technology can drive systemic change for people, for the planet and you want your day job to prove it. If that sounds like you, we'd love to talk. Requirements * Design, build, and maintain our core web application, APIs and data infrastructure. * Work with LLMs and ML methods to automate data operations and shape the AI-first customer experience we're building towards. * Own the full product lifecycle, from idea and prototype through to shipping and measuring real customer impact.
Centuro Global simplifies business travel and immigration with expert legal support and award-winning technology. Leading companies in over 170 countries choose us over legacy providers for our speed, transparency, and ability to handle complex requirements. * Tripled ARR * Won Best Technology in Global Mobility (FEM EMMA Awards Europe) * Won Most Pioneering Technology in Business Travel (GBTA EMEA) We work with enterprise and mid-market clients across industries, particularly in tech, energy, and the EOR space. We are not a traditional immigration firm. The industry is being reshaped by AI and we are building what comes next. The opportunity - We're hiring our first Sales Engineer in London to partner with Account Executives across Europe and North America, translate customer requirements into real platform solutions, and help us win technically demanding enterprise deals.
Centuro Global simplifies business travel and immigration with expert legal support and award-winning technology. Leading companies in over 170 countries choose us over legacy providers for our speed, transparency, and ability to handle complex requirements. * Tripled ARR * Won Best Technology in Global Mobility (FEM EMMA Awards Europe) * Won Most Pioneering Technology in Business Travel (GBTA EMEA) We work with enterprise and mid-market clients across industries, particularly in tech, energy, and the EOR space. We are not a traditional immigration firm. The industry is being reshaped by AI and we are building what comes next. The opportunity - We're hiring our first Sales Engineer in London to partner with Account Executives across Europe and North America, translate customer requirements into real platform solutions, and help us win technically demanding enterprise deals.
About Sano - Mission: what we do - The patients in the programmes we support often have no approved treatment and no alternatives in clinical development. Getting the right patient into the right trial, at the right moment, is sometimes the only shot they have. We don't say this to add pressure: we say it because it's true, and because the people who do their best work here are the ones who feel that weight and let it sharpen their focus rather than slow them down. Purpose: why we do it - Sano Genetics helps pharmaceutical companies developing genetically targeted medicines find, engage, and retain the right patients. We work with some of the largest pharma organisations in the world, running precision programmes that compress clinical trial timelines and reduce enrolment risk. Our deals are consultative, science-led, and rarely straightforward; every proposal is shaped around the ...
About Sano - Mission: what we do - The patients in the programmes we support often have no approved treatment and no alternatives in clinical development. Getting the right patient into the right trial, at the right moment, is sometimes the only shot they have. We don't say this to add pressure: we say it because it's true, and because the people who do their best work here are the ones who feel that weight and let it sharpen their focus rather than slow them down. Purpose: why we do it - Sano Genetics helps pharmaceutical companies developing genetically targeted medicines find, engage, and retain the right patients. We work with some of the largest pharma organisations in the world, running precision programmes that compress clinical trial timelines and reduce enrolment risk. Our deals are consultative, science-led, and rarely straightforward; every proposal is shaped around the ...
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Who are Heidi? Heidi is building an AI Care Partner that supports clinicians every step of the way, from documentation to delivery of care. We exist to double healthcares capacity while keeping care deeply human. In 18 months, Heidi has returned more than 18 million hours to clinicians and supported over 73 million patient visits. Today, more than two million patient visits each week are powered by Heidi across 116 countries and over 110 languages. Founded by clinicians, Heidi brings together clinicians, engineers, designers, scientists, creatives, and mathematicians, working with a shared purpose: to strengthen the human connection at the heart of healthcare. Backed by nearly $100 million in total funding, Heidi is expanding across the USA, UK, Canada, and Europe, partnering with major health systems including the NHS, Beth Israel Lahey Health, MaineGeneral, and Monash ...
Who are Heidi? Heidi is building an AI Care Partner that supports clinicians every step of the way, from documentation to delivery of care. We exist to double healthcares capacity while keeping care deeply human. In 18 months, Heidi has returned more than 18 million hours to clinicians and supported over 73 million patient visits. Today, more than two million patient visits each week are powered by Heidi across 116 countries and over 110 languages. Founded by clinicians, Heidi brings together clinicians, engineers, designers, scientists, creatives, and mathematicians, working with a shared purpose: to strengthen the human connection at the heart of healthcare. Backed by nearly $100 million in total funding, Heidi is expanding across the USA, UK, Canada, and Europe, partnering with major health systems including the NHS, Beth Israel Lahey Health, MaineGeneral, and Monash ...
NEW
Join Proton and build a better internet where privacy is the default - At Proton, we believe that privacy is a fundamental human right and the cornerstone of democracy. Since our inception in 2014, founded by a team of scientists from CERN, we have dedicated ourselves to providing free and open-source technology to millions worldwide, ensuring access to privacy, security, and freedom online. Our journey began with Proton Mail, the largest secure email service globally, and has since expanded to include Proton VPN, Proton Calendar, Proton Drive, and Proton Pass. These tools empower individuals and organizations to take control of their personal data, break away from Big Techs invasive practices, and defeat censorship. Our work impacts hundreds of millions of lives, from activists on the front lines defending freedom to leaders in governments protecting sensitive information.
Join Proton and build a better internet where privacy is the default - At Proton, we believe that privacy is a fundamental human right and the cornerstone of democracy. Since our inception in 2014, founded by a team of scientists from CERN, we have dedicated ourselves to providing free and open-source technology to millions worldwide, ensuring access to privacy, security, and freedom online. Our journey began with Proton Mail, the largest secure email service globally, and has since expanded to include Proton VPN, Proton Calendar, Proton Drive, and Proton Pass. These tools empower individuals and organizations to take control of their personal data, break away from Big Techs invasive practices, and defeat censorship. Our work impacts hundreds of millions of lives, from activists on the front lines defending freedom to leaders in governments protecting sensitive information.
Synthesia is the worlds leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of successful organizations. Following our recent Series E funding round, where we raised $200 million, our valuation stands at $4 billion. Our total funding exceeds $530 million from premier investors including Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, GV, and Evantic Capital, alongside the founders and operators of Stripe, Datadog, Miro, and Webflow. About the role - Lead the delivery of complex engineering projects in AI-powered video, avatar rendering, and ...
Synthesia is the worlds leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of successful organizations. Following our recent Series E funding round, where we raised $200 million, our valuation stands at $4 billion. Our total funding exceeds $530 million from premier investors including Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, GV, and Evantic Capital, alongside the founders and operators of Stripe, Datadog, Miro, and Webflow. About the role - Lead the delivery of complex engineering projects in AI-powered video, avatar rendering, and ...
Zilch is a payment tech company on a mission to create the most empowering way to pay for anything, anywhere. Combining the best of debit, credit and savings, we give our customers the option to earn instant cashback or spread the cost of pricier purchases, completely interest free and with no late fees. Pretty great, right? We started in 2018 with a small team and a big dream - to make credit accessible to all. Since then, we've achieved double unicorn status and taken on more than 5 million customers. There are some exciting projects coming up and weve got big growth plans. Want to join us? About the role. Zilch is searching for a talented Senior Java Software Engineer to join our dynamic and fast-paced team. We are looking to speak with coding enthusiasts who live and breathe software, and who obsess about quality.
Zilch is a payment tech company on a mission to create the most empowering way to pay for anything, anywhere. Combining the best of debit, credit and savings, we give our customers the option to earn instant cashback or spread the cost of pricier purchases, completely interest free and with no late fees. Pretty great, right? We started in 2018 with a small team and a big dream - to make credit accessible to all. Since then, we've achieved double unicorn status and taken on more than 5 million customers. There are some exciting projects coming up and weve got big growth plans. Want to join us? About the role. Zilch is searching for a talented Senior Java Software Engineer to join our dynamic and fast-paced team. We are looking to speak with coding enthusiasts who live and breathe software, and who obsess about quality.
We are seeking a highly skilled Lead Engineer to drive technical delivery and provide leadership within a high-calibre engineering team. This role is a balanced mix of hands-on engineering (50%) and leadership responsibilities (50%). The Lead Engineer will be responsible for line management, technical excellence, and proactive communication across stakeholders, clients, and colleagues. This role is ideal for a technically strong leader who thrives in a people-centric environment, values proactive communication, and is eager to shape the future of engineering with AI-driven innovation. * Lead technical delivery of projects and initiatives. * Line manage engineers, fostering growth and development. * Balance hands-on coding and technical work with leadership duties. * Conduct daily standups and participate in stakeholder meetings.
We are seeking a highly skilled Lead Engineer to drive technical delivery and provide leadership within a high-calibre engineering team. This role is a balanced mix of hands-on engineering (50%) and leadership responsibilities (50%). The Lead Engineer will be responsible for line management, technical excellence, and proactive communication across stakeholders, clients, and colleagues. This role is ideal for a technically strong leader who thrives in a people-centric environment, values proactive communication, and is eager to shape the future of engineering with AI-driven innovation. * Lead technical delivery of projects and initiatives. * Line manage engineers, fostering growth and development. * Balance hands-on coding and technical work with leadership duties. * Conduct daily standups and participate in stakeholder meetings.
About The Role - Taktile is redefining how financial institutions use AI to make critical decisions, and we're growing fast. As an Applied AI Engineer, you'll be at the heart of that transformation, building advanced agentic products that solve high-value problems. You will act as a product owner for the AI agents you create, turning them into reusable applications that solve concrete customer problems at scale in the financial crime or credit risk space. If you're passionate about applying AI to real-world financial decisioning, stay current on advances in generative AI, and bring a solid foundation in Python, SQL, and working with APIs, you'll thrive here. What You'll Do as an Sr. Applied AI Engineer * Build Reusable AI Products: Act as the product owner for your application area. Design, develop, and deploy robust, repeatable Generative AI agents that serve as configurable ...
About The Role - Taktile is redefining how financial institutions use AI to make critical decisions, and we're growing fast. As an Applied AI Engineer, you'll be at the heart of that transformation, building advanced agentic products that solve high-value problems. You will act as a product owner for the AI agents you create, turning them into reusable applications that solve concrete customer problems at scale in the financial crime or credit risk space. If you're passionate about applying AI to real-world financial decisioning, stay current on advances in generative AI, and bring a solid foundation in Python, SQL, and working with APIs, you'll thrive here. What You'll Do as an Sr. Applied AI Engineer * Build Reusable AI Products: Act as the product owner for your application area. Design, develop, and deploy robust, repeatable Generative AI agents that serve as configurable ...
Ripjar specialises in the development of software and data products that help governments and organisations combat serious financial crime. Our technology is used to identify criminal activity such as money laundering and terrorist financing, enabling organisations to enforce sanctions at scale to help combat rogue entities and state actors. We are a remote first team, with a head office based in Cheltenham. This position is open to UK wide candidates. If you are based near Cheltenham, you are more than welcome to work from our office at any time. Our mission is to elevate brand awareness and drive revenue growth through innovative marketing strategies that captivate audiences, foster customer loyalty and amplify the influence of our brand in the marketplace. This is a brand new role. Reporting into our incoming Director of Marketing, you'll be a key driver of commercial ...
Ripjar specialises in the development of software and data products that help governments and organisations combat serious financial crime. Our technology is used to identify criminal activity such as money laundering and terrorist financing, enabling organisations to enforce sanctions at scale to help combat rogue entities and state actors. We are a remote first team, with a head office based in Cheltenham. This position is open to UK wide candidates. If you are based near Cheltenham, you are more than welcome to work from our office at any time. Our mission is to elevate brand awareness and drive revenue growth through innovative marketing strategies that captivate audiences, foster customer loyalty and amplify the influence of our brand in the marketplace. This is a brand new role. Reporting into our incoming Director of Marketing, you'll be a key driver of commercial ...
We want you to #JOINTHEREBELLION! For 30 years weve been independently developing and publishing incredible video games at our multiple studios founded by Jason & Chris Kingsley, but Rebellion is more than just games. We have our own film studio, we create board games, publish books, and through 2000AD, publish comics and graphic novels such as the amazing Judge Dredd. We are seeking an experienced and highly skilled back-end Senior Online Developer to join our tech team, to help build and support internal and external web APIs to support our game engine team. The successful candidate will join a small team and user their specialist JavaScript knowledge to be involved in the entire software development lifecycle, from requirements gathering and system design to implementation, testing, deployment, and maintenance.
We want you to #JOINTHEREBELLION! For 30 years weve been independently developing and publishing incredible video games at our multiple studios founded by Jason & Chris Kingsley, but Rebellion is more than just games. We have our own film studio, we create board games, publish books, and through 2000AD, publish comics and graphic novels such as the amazing Judge Dredd. We are seeking an experienced and highly skilled back-end Senior Online Developer to join our tech team, to help build and support internal and external web APIs to support our game engine team. The successful candidate will join a small team and user their specialist JavaScript knowledge to be involved in the entire software development lifecycle, from requirements gathering and system design to implementation, testing, deployment, and maintenance.
About 9fin - 9fin is the AI platform powering global debt markets the worlds largest asset class at over $145 trillion. Debt markets are vast, global, and mission-critical, yet still run on fragmented data, PDFs, and manual workflows. 9fin replaces this broken infrastructure with a single platform that centralises proprietary credit data, deep analysis, and high-value workflows across global markets. Today, 9fin powers teams at 300+ blue-chip institutions worldwide, including global banks, asset managers, private equity firms, law firms, and advisors. The business is scaling at exceptional speed, with rapid expansion in the US and best-in-class retention driven by deep workflow adoption. Were at a defining inflection point. With proven product-market fit and strong, global market pull, 9fin is accelerating toward becoming the category-defining platform for debt markets ...
About 9fin - 9fin is the AI platform powering global debt markets the worlds largest asset class at over $145 trillion. Debt markets are vast, global, and mission-critical, yet still run on fragmented data, PDFs, and manual workflows. 9fin replaces this broken infrastructure with a single platform that centralises proprietary credit data, deep analysis, and high-value workflows across global markets. Today, 9fin powers teams at 300+ blue-chip institutions worldwide, including global banks, asset managers, private equity firms, law firms, and advisors. The business is scaling at exceptional speed, with rapid expansion in the US and best-in-class retention driven by deep workflow adoption. Were at a defining inflection point. With proven product-market fit and strong, global market pull, 9fin is accelerating toward becoming the category-defining platform for debt markets ...
Company Description - You might not know our name, but companies like eBay, Spotify, Klarna, Uber, and Sony do, because were behind many of the digital experiences you use every day. We are where the world checks out, enabling over 10 billion transactions daily for more than one billion global shoppers. Whether you want to book a holiday, order food, renew a subscription, or check out online, theres a good chance our tech powers the payments behind the scenes. Our platform helps the most ambitious businesses deliver effortless digital experiences, at scale. If you want to do career-defining work, youve come to the right place. We move fast, think globally, and believe great teams are built by hiring exceptional people with conviction, curiosity, and the desire to make an impact. With 20 offices across six continents and London as our HQ, were shaping the future of fintech and ...
Company Description - You might not know our name, but companies like eBay, Spotify, Klarna, Uber, and Sony do, because were behind many of the digital experiences you use every day. We are where the world checks out, enabling over 10 billion transactions daily for more than one billion global shoppers. Whether you want to book a holiday, order food, renew a subscription, or check out online, theres a good chance our tech powers the payments behind the scenes. Our platform helps the most ambitious businesses deliver effortless digital experiences, at scale. If you want to do career-defining work, youve come to the right place. We move fast, think globally, and believe great teams are built by hiring exceptional people with conviction, curiosity, and the desire to make an impact. With 20 offices across six continents and London as our HQ, were shaping the future of fintech and ...
Who we are - DMPG is a highly experienced team providing digital experience enablement services to our clients. We punch well above our weight and boast an impressive client roster including Audible, Boden, Royal Mail, TUI, Whitbread and many more high profile organisations. We always strive to go beyond client expectations, and we are recognised as leaders in our industry. We now need to grow our team, and we are looking for a Technical Enablement Engineer who shares our enthusiasm to support clients to build a single customer view and integrate that with customer activation platforms or other data platforms for analysis. What we do - 1. Data layer strategy, design and implementation - 2. Tag management strategy, deployment and maintenance - 3. Analytics strategy, implementation and insights support - 4. Conversion rate optimisation strategy, execution and insights support - 5.
Who we are - DMPG is a highly experienced team providing digital experience enablement services to our clients. We punch well above our weight and boast an impressive client roster including Audible, Boden, Royal Mail, TUI, Whitbread and many more high profile organisations. We always strive to go beyond client expectations, and we are recognised as leaders in our industry. We now need to grow our team, and we are looking for a Technical Enablement Engineer who shares our enthusiasm to support clients to build a single customer view and integrate that with customer activation platforms or other data platforms for analysis. What we do - 1. Data layer strategy, design and implementation - 2. Tag management strategy, deployment and maintenance - 3. Analytics strategy, implementation and insights support - 4. Conversion rate optimisation strategy, execution and insights support - 5.