Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
Locations
- London
- Surrey
- City of London
- South West London
- Central London
- South East London
- Tunbridge Wells
- East London
- Dorking
- West End
- Scotland
- Birmingham
- Reading
- Hampshire
- Oxford
- Southampton
- Staffordshire
- Slough
- West Sussex
- East Anglia
- County Antrim
- Oxfordshire
- Wales
- Dundee
- Midlothian
- East Sussex
- Chester
- Poole
- Cochrane Park
- Derby
- Yorkshire
- Bristol
- Greater Manchester
- Cheshire
- Gloucestershire
- Hertfordshire
- West Yorkshire
- Glasgow
- York
- Edinburgh
- Leeds
- Colchester
- North West
- Berkshire
- Merseyside
- Lancashire
- Milton Keynes
- Buckinghamshire
- West Midlands
- Abingdon
129 Work From Home API jobs in South East + 20 miles
The ideal candidate has prior experience solving complex forms of scaled abuse, building sophisticated protections across multiple parts of OpenAIs product suite (ChatGPT, API, Sora).
The ideal candidate has prior experience solving complex forms of scaled abuse, building sophisticated protections across multiple parts of OpenAIs product suite (ChatGPT, API, Sora).
NEW
)
APIs: Understanding of RESTful API design and development.
APIs: Understanding of RESTful API design and development.
This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI and new ways of working.
This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI and new ways of working.
NEW
Must have experience with .NET and C#, SDLC (Software Development Life Cycle), Database (SQL, Azure Data Store) and API/REST
Must have experience with .NET and C#, SDLC (Software Development Life Cycle), Database (SQL, Azure Data Store) and API/REST
NEW
Senior Machine Learning Operations Engineer
Senior Machine Learning Operations Engineer
FIRST CENTRAL SERVICES (UK) LIMITED
Haywards Heath, West Sussex
£65,000 - £75,000 a year
Understanding of microservices architecture, RESTful API design, development, and integration
Understanding of microservices architecture, RESTful API design, development, and integration
NEW
You understand the patterns (e.g., webhooks, polling, message queues, event-driven architectures), the challenges of API versioning, and the principles of building a scalable, multi-tenant integrations platform. * Systems Thinking: Strong understanding of modern backend building blocks: API best practices; message queues (RabbitMQ, SNS/SQS or similar); relational data stores (PostgreSQL or similar); and cloud services (AWS or similar).
You understand the patterns (e.g., webhooks, polling, message queues, event-driven architectures), the challenges of API versioning, and the principles of building a scalable, multi-tenant integrations platform. * Systems Thinking: Strong understanding of modern backend building blocks: API best practices; message queues (RabbitMQ, SNS/SQS or similar); relational data stores (PostgreSQL or similar); and cloud services (AWS or similar).
NEW
This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI to pioneer of AI-first development practices. * Design and implement scalable microservices with API-first mindset API-First & Microservices Excellence * Create comprehensive API documentation and developer guides API-First & Microservices Architecture * Deep knowledge of API design principles and RESTful/GraphQL patterns * Understanding of service mesh, API gateways, and inter-service communication * API design and documentation tools (Swagger/OpenAPI, Postman)
This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI to pioneer of AI-first development practices. * Design and implement scalable microservices with API-first mindset API-First & Microservices Excellence * Create comprehensive API documentation and developer guides API-First & Microservices Architecture * Deep knowledge of API design principles and RESTful/GraphQL patterns * Understanding of service mesh, API gateways, and inter-service communication * API design and documentation tools (Swagger/OpenAPI, Postman)
NEW
The Developer Platform team supports 75B+ API calls and a growing marketplace with 300+ partner applications.
The Developer Platform team supports 75B+ API calls and a growing marketplace with 300+ partner applications.
NEW
Work closely with IT teams to support data integration initiatives, with our customers & brokers to leverage our API capabilities to streamline processes and enable seamless data exchange across platforms.
Work closely with IT teams to support data integration initiatives, with our customers & brokers to leverage our API capabilities to streamline processes and enable seamless data exchange across platforms.
NEW
Lead Transformation: Transition from monolithic applications to an API-first, modular platform strategy.
Lead Transformation: Transition from monolithic applications to an API-first, modular platform strategy.
NEW
Post-training techniques for planning, reasoning & complex workflows (e.g., reasoning models, LLMs + knowledge graphs, test time compute, CoT pipelines, tool use & API calling, etc.)
Post-training techniques for planning, reasoning & complex workflows (e.g., reasoning models, LLMs + knowledge graphs, test time compute, CoT pipelines, tool use & API calling, etc.)
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 Tech's 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 infor
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 Tech's 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 infor
Since being founded in 2018, Copper has been building the standard for institutional digital asset infrastructure with a focus on custody, collateral management, and prime services. Led by Amar Kuchinad, Copper's Global CEO, the firm provides a comprehensive suite of custody, trading and settlement solutions that reduce counterparty risk and bring greater capital and operational efficiency to digital asset markets. At the heart of Copper's offering is Multi-Party Computation (MPC) technology the gold standard in secure custody. Coppers multi-award winning custody system is unique in that it can be connected to centralised exchanges, DeFi applications and even staking pools without the assets leaving the custody. Built on top of this state-of-the-art custody, ClearLoop is the first solution in the market that overcomes a growing industry challenge; counterparty risk wi
Since being founded in 2018, Copper has been building the standard for institutional digital asset infrastructure with a focus on custody, collateral management, and prime services. Led by Amar Kuchinad, Copper's Global CEO, the firm provides a comprehensive suite of custody, trading and settlement solutions that reduce counterparty risk and bring greater capital and operational efficiency to digital asset markets. At the heart of Copper's offering is Multi-Party Computation (MPC) technology the gold standard in secure custody. Coppers multi-award winning custody system is unique in that it can be connected to centralised exchanges, DeFi applications and even staking pools without the assets leaving the custody. Built on top of this state-of-the-art custody, ClearLoop is the first solution in the market that overcomes a growing industry challenge; counterparty risk wi
Are you passionate about building AI-driven software that transforms how professionals work? Join a dynamic and highly skilled team at Thomson Reuters, where we invest deeply in AI technologies and explore emerging fields with the backing of a global leader. As a Senior Software Engineer AI , you will play a vital role in developing intelligent systems that power the next generation of expert solutions across legal, tax, risk, and compliance domains. In this role, you will be an embedded AI expert on the Contract Express team, advancing our document automation platform with cutting-edge AI capabilities. About the Role * Lead the technical execution of AI initiatives for our document automation platform, including architecture decisions, roadmap alignment, and delivery oversight. * Design, build, and deploy scalable AI/ML solutions leveraging emerging technologies and
Are you passionate about building AI-driven software that transforms how professionals work? Join a dynamic and highly skilled team at Thomson Reuters, where we invest deeply in AI technologies and explore emerging fields with the backing of a global leader. As a Senior Software Engineer AI , you will play a vital role in developing intelligent systems that power the next generation of expert solutions across legal, tax, risk, and compliance domains. In this role, you will be an embedded AI expert on the Contract Express team, advancing our document automation platform with cutting-edge AI capabilities. About the Role * Lead the technical execution of AI initiatives for our document automation platform, including architecture decisions, roadmap alignment, and delivery oversight. * Design, build, and deploy scalable AI/ML solutions leveraging emerging technologies and
NEW
Job Title - Job Description - So, who are we? Hello, we're IG Group. We are a publicly-traded FTSE250 FinTech company who run mobile, web and desktop platforms that help our clients trade stocks & shares, leveraged products, Futures & Options and Crypto. We are ambitious. Over 340,000 people already use our platforms. We're global with offices in 18 countries and products in 16 regions. We're hungry to move faster, ship better product for our customers and grow our user base. We believe in high autonomy, and we want people who are looking to do things differently in order to create better experiences for our customers. We work in cross-functional teams and are laser-focused on increasing the number of active clients we serve to drive sustainable growth. Your team - Are you passionate about delivering real value to an organisation using advanced techniques in data scie
Job Title - Job Description - So, who are we? Hello, we're IG Group. We are a publicly-traded FTSE250 FinTech company who run mobile, web and desktop platforms that help our clients trade stocks & shares, leveraged products, Futures & Options and Crypto. We are ambitious. Over 340,000 people already use our platforms. We're global with offices in 18 countries and products in 16 regions. We're hungry to move faster, ship better product for our customers and grow our user base. We believe in high autonomy, and we want people who are looking to do things differently in order to create better experiences for our customers. We work in cross-functional teams and are laser-focused on increasing the number of active clients we serve to drive sustainable growth. Your team - Are you passionate about delivering real value to an organisation using advanced techniques in data scie
NEW
We are seeking a creative backend engineer to join the team behind CoCounsel. You will help build applications that interact with state-of-the-art Large Language Models (LLMs) that deliver cutting-edge and time-saving solutions to attorneys in the UK. CoCounsel is already capable of writing legal research memos, summarizing and reviewing documents, and red-lining contracts, just to name a few capabilities-all in minutes, not days or weeks. And we're just getting started. As a Software Engineer, Legal Prompter, you will develop Python code as well as prose prompts to LLMs to help expand CoCounsel's early success and localize CoCounsel to the UK legal market. This mix of writing instructions for an interpreter and an LLM is well-suited for someone who can produce reliable backend code, and can also write creative, lucid, and effective prose instructions.
We are seeking a creative backend engineer to join the team behind CoCounsel. You will help build applications that interact with state-of-the-art Large Language Models (LLMs) that deliver cutting-edge and time-saving solutions to attorneys in the UK. CoCounsel is already capable of writing legal research memos, summarizing and reviewing documents, and red-lining contracts, just to name a few capabilities-all in minutes, not days or weeks. And we're just getting started. As a Software Engineer, Legal Prompter, you will develop Python code as well as prose prompts to LLMs to help expand CoCounsel's early success and localize CoCounsel to the UK legal market. This mix of writing instructions for an interpreter and an LLM is well-suited for someone who can produce reliable backend code, and can also write creative, lucid, and effective prose instructions.
NEW
About us - At Xelix, we work with some of the worlds largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively, whilst remaining profitable. We have over 100 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun & we love to celebrate a milestone together. In this role youll grow, be challenged and help shape the future of Xelix. If youre excited about building something special with us, wed love to hear from you. About the
About us - At Xelix, we work with some of the worlds largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively, whilst remaining profitable. We have over 100 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun & we love to celebrate a milestone together. In this role youll grow, be challenged and help shape the future of Xelix. If youre excited about building something special with us, wed love to hear from you. About the
NEW
WHAT MAKES US, US Join some of the most innovative thinkers in FinTech as we lead the evolution of financial technology. If you are an innovative, curious, collaborative person who embraces challenges and wants to grow, learn, and pursue outcomes with our prestigious financial clients, say Hello to SimCorp! At its foundation, SimCorp is guided by our values caring, customer success-driven, collaborative, curious, and courageous. Our people-centered organization focuses on skills development, relationship building, and client success. We take pride in cultivating an environment where all team members can grow, feel heard, valued, and empowered. If you like what were saying, keep reading! WHY THIS ROLE IS IMPORTANT FOR US Are you interested in joining a collaborative team in a great office environment in an award-winning organization?
WHAT MAKES US, US Join some of the most innovative thinkers in FinTech as we lead the evolution of financial technology. If you are an innovative, curious, collaborative person who embraces challenges and wants to grow, learn, and pursue outcomes with our prestigious financial clients, say Hello to SimCorp! At its foundation, SimCorp is guided by our values caring, customer success-driven, collaborative, curious, and courageous. Our people-centered organization focuses on skills development, relationship building, and client success. We take pride in cultivating an environment where all team members can grow, feel heard, valued, and empowered. If you like what were saying, keep reading! WHY THIS ROLE IS IMPORTANT FOR US Are you interested in joining a collaborative team in a great office environment in an award-winning organization?
NEW
Purpose of Position - Your location: Any country where Awin has an office. You will be able to work from home most of the time if you are based in one of these countries. As a Junior CRM Engineer you will be part of the project team involved in the implementation of Salesforce new features (primarily Service Cloud and potentially Sales Cloud) at Awin. You will also be joining a team of CRM engineers and specialists reporting to the CRM Engineering Manager within CRM department. In this position, you will also be responsible for the day-to-day user management, maintenance and continuous roll out of Salesforce features. Key Tasks * Participate to the CRM team sprints to implement features supporting the defined roadmap * Work closely with CRM Business Analyst and/or CRM Architects to understand requirements and deliver best of class solutions
Purpose of Position - Your location: Any country where Awin has an office. You will be able to work from home most of the time if you are based in one of these countries. As a Junior CRM Engineer you will be part of the project team involved in the implementation of Salesforce new features (primarily Service Cloud and potentially Sales Cloud) at Awin. You will also be joining a team of CRM engineers and specialists reporting to the CRM Engineering Manager within CRM department. In this position, you will also be responsible for the day-to-day user management, maintenance and continuous roll out of Salesforce features. Key Tasks * Participate to the CRM team sprints to implement features supporting the defined roadmap * Work closely with CRM Business Analyst and/or CRM Architects to understand requirements and deliver best of class solutions
NEW
The Role - Joining Moderna offers the unique opportunity to be part of a pioneering team that's revolutionizing medicine through mRNA technology, with a diverse pipeline of development programs across various diseases. As an employee, you'll be part of a continually growing organization, working alongside exceptional colleagues and strategic partners worldwide, contributing to global health initiatives. Moderna's commitment to advancing the technological frontier of mRNA medicines ensures a challenging and rewarding career experience, with the potential to make a significant impact on patients' lives worldwide. Moderna is solidifying its presence in London, a global hub for scientific research and innovation. Our London office focuses on commercial operations, ensuring the delivery of our revolutionary products to the UK market.
The Role - Joining Moderna offers the unique opportunity to be part of a pioneering team that's revolutionizing medicine through mRNA technology, with a diverse pipeline of development programs across various diseases. As an employee, you'll be part of a continually growing organization, working alongside exceptional colleagues and strategic partners worldwide, contributing to global health initiatives. Moderna's commitment to advancing the technological frontier of mRNA medicines ensures a challenging and rewarding career experience, with the potential to make a significant impact on patients' lives worldwide. Moderna is solidifying its presence in London, a global hub for scientific research and innovation. Our London office focuses on commercial operations, ensuring the delivery of our revolutionary products to the UK market.
NEW
About The Role - FDM is a global business and technology consultancy seeking an Automation Tester to work for our client within the retail sector. This is initially a 6 month contract with the potential to extend and will be a hybrid role based in London. Our client is seeking an Automation Tester to play a pivotal role in driving real change in their processes to ensure they can release reliable code on a regular basis. There will be a core focus on reducing bugs post-release, rapidly increasing % test coverage and reducing the time it takes to ship new functionality to the customer. This is a great opportunity to define and deliver on a test strategy that seeks to progress their automation testing capabilities, while supporting SCRUM sprint ticket delivery. As a result, the successful candidate would need to be able to demonstrate confidence in delivering multiple .
About The Role - FDM is a global business and technology consultancy seeking an Automation Tester to work for our client within the retail sector. This is initially a 6 month contract with the potential to extend and will be a hybrid role based in London. Our client is seeking an Automation Tester to play a pivotal role in driving real change in their processes to ensure they can release reliable code on a regular basis. There will be a core focus on reducing bugs post-release, rapidly increasing % test coverage and reducing the time it takes to ship new functionality to the customer. This is a great opportunity to define and deliver on a test strategy that seeks to progress their automation testing capabilities, while supporting SCRUM sprint ticket delivery. As a result, the successful candidate would need to be able to demonstrate confidence in delivering multiple .
NEW
Biglight is an experience design agency that combines customer insight, UX and design with constant innovation and experimentation to help leading brands create remarkable customer experiences. Were expanding our capabilities into component library and design system development for enterprise clients. This role focuses on building and maintaining a sophisticated UI component library that powers both e-commerce and B2B web applications for a major UK brand. Youll be working with modern frontend technologies (Preact, TailwindCSS, and Storybook)to create reusable, accessible and pixel-perfect components that form the foundation of our client's digital experiences. The library includes 70+ components, 200+ documented stories and supports multiple themes with automated CSS generation. This is a hands-on development role where youll own components end-to-end: from ...
Biglight is an experience design agency that combines customer insight, UX and design with constant innovation and experimentation to help leading brands create remarkable customer experiences. Were expanding our capabilities into component library and design system development for enterprise clients. This role focuses on building and maintaining a sophisticated UI component library that powers both e-commerce and B2B web applications for a major UK brand. Youll be working with modern frontend technologies (Preact, TailwindCSS, and Storybook)to create reusable, accessible and pixel-perfect components that form the foundation of our client's digital experiences. The library includes 70+ components, 200+ documented stories and supports multiple themes with automated CSS generation. This is a hands-on development role where youll own components end-to-end: from ...
NEW
We are looking for an experienced Senior Software Engineers 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. Tipaltis 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, youll 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 Tipaltis offering into brand new areas.
We are looking for an experienced Senior Software Engineers 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. Tipaltis 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, youll 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 Tipaltis offering into brand new areas.
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
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
Related Jobs
Locations
- London
- Surrey
- City of London
- South West London
- Central London
- South East London
- Tunbridge Wells
- East London
- Dorking
- West End
- Scotland
- Birmingham
- Reading
- Hampshire
- Oxford
- Southampton
- Staffordshire
- Slough
- West Sussex
- East Anglia
- County Antrim
- Oxfordshire
- Wales
- Dundee
- Midlothian
- East Sussex
- Chester
- Poole
- Cochrane Park
- Derby
- Yorkshire
- Bristol
- Greater Manchester
- Cheshire
- Gloucestershire
- Hertfordshire
- West Yorkshire
- Glasgow
- York
- Edinburgh
- Leeds
- Colchester
- North West
- Berkshire
- Merseyside
- Lancashire
- Milton Keynes
- Buckinghamshire
- West Midlands
- Abingdon