Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
79 API jobs in Southwark (SE1) + 20 miles
382 exact matches jobs are outside your preferred location
Our data platform is Azure cloud native, where we leverage services like Data Lake Storage Gen2, SQL Database, DataFactory, ContainerApps (with Docker), LogicApps, FunctionApps, WebApps with API Management and API Gateways, Log Analytics, KeyVault, and we code in SQL and Python. * Demonstrable knowledge and skills in the Azure Cloud Stack - Data Lake Storage, DataFactory, ContainerApps, LogicApps, FunctionApps, WebApps, API Management, API Gateways, Log Analytics, KeyVault and MS SQL Server related services.
Our data platform is Azure cloud native, where we leverage services like Data Lake Storage Gen2, SQL Database, DataFactory, ContainerApps (with Docker), LogicApps, FunctionApps, WebApps with API Management and API Gateways, Log Analytics, KeyVault, and we code in SQL and Python. * Demonstrable knowledge and skills in the Azure Cloud Stack - Data Lake Storage, DataFactory, ContainerApps, LogicApps, FunctionApps, WebApps, API Management, API Gateways, Log Analytics, KeyVault and MS SQL Server related services.
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
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).
Collaborate closely on system architecture, data flows, and API structures to ensure design feasibility and coherence.
Collaborate closely on system architecture, data flows, and API structures to ensure design feasibility and coherence.
Reporting to our CPO, you will lead the strategy and roadmap across mobile ticketing and payments, Account-Based Ticketing, EMV, our API and integration layer, and the requirements that underpin reliability, performance and service tiers. * Define and own the strategy for Masabis core platform domains, including ABT, EMV, mobile ticketing, the fare engine and our API and integration layer. * Treat our API platform and integration layer as first-class products. * Strengthen the developer and partner experience through improved API coverage, documentation and tooling.
Reporting to our CPO, you will lead the strategy and roadmap across mobile ticketing and payments, Account-Based Ticketing, EMV, our API and integration layer, and the requirements that underpin reliability, performance and service tiers. * Define and own the strategy for Masabis core platform domains, including ABT, EMV, mobile ticketing, the fare engine and our API and integration layer. * Treat our API platform and integration layer as first-class products. * Strengthen the developer and partner experience through improved API coverage, documentation and tooling.
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)
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.
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.
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.
5+ year experience in the card issuing ecosystem, preferably in a modern fintech with a platform and API products
5+ year experience in the card issuing ecosystem, preferably in a modern fintech with a platform and API products
NEW
Apply a core understanding of API and Webhook functionality to help customers achieve key customer use cases utilizing the Klaviyo platform.
Apply a core understanding of API and Webhook functionality to help customers achieve key customer use cases utilizing the Klaviyo platform.
Our API service layer is written in Go, following a documentation-first mindset. * Experience delivering cloud-based REST API solutions
Our API service layer is written in Go, following a documentation-first mindset. * Experience delivering cloud-based REST API solutions
May participate in standards development committees or task groups such as API
May participate in standards development committees or task groups such as API
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.)
Who are we? Look at the latest headlines and you will see something Ki insures. Think space shuttles, world tours, wind farms, and even footballers legs. Kis mission is simple. Digitally disrupt and revolutionise a 335-year-old market. Working with Google and UCL, Ki has created a platform that uses algorithms, machine learning and large language models to give insurance brokers quotes in seconds, rather than days. Ki is proudly the biggest global algorithmic insurance carrier. It is the fastest growing syndicate in the Lloyd's of London market, and the first ever to make $100m in profit in 3 years. Kis teams have varied backgrounds and work together in an agile, cross-functional way to build the very best experience for its customers. Ki has big ambitions but needs more excellent minds to challenge the status-quo and help it reach new horizons. Where you come in?
Who are we? Look at the latest headlines and you will see something Ki insures. Think space shuttles, world tours, wind farms, and even footballers legs. Kis mission is simple. Digitally disrupt and revolutionise a 335-year-old market. Working with Google and UCL, Ki has created a platform that uses algorithms, machine learning and large language models to give insurance brokers quotes in seconds, rather than days. Ki is proudly the biggest global algorithmic insurance carrier. It is the fastest growing syndicate in the Lloyd's of London market, and the first ever to make $100m in profit in 3 years. Kis teams have varied backgrounds and work together in an agile, cross-functional way to build the very best experience for its customers. Ki has big ambitions but needs more excellent minds to challenge the status-quo and help it reach new horizons. Where you come in?
Our engineering team is dedicated to designing and developing robust backend services and applications that support Macquaries Commodities and Global Markets operations. We work collaboratively across functions to deliver reliable, high-performance solutions, ensuring our systems remain responsive, efficient, and scalable. Our focus is on maintaining code quality, fostering innovation, and continuously improving our technology landscape. While Macquarie offers hybrid working for many of our roles, this role does require 3 days a week in the advertised location. At Macquarie, our advantage is bringing together diverse people and empowering them to shape all kinds of possibilities. We are a global financial services group operating in 31 markets and with 56 years of unbroken profitability. Youll be part of a friendly and supportive team where everyone - no matter what r
Our engineering team is dedicated to designing and developing robust backend services and applications that support Macquaries Commodities and Global Markets operations. We work collaboratively across functions to deliver reliable, high-performance solutions, ensuring our systems remain responsive, efficient, and scalable. Our focus is on maintaining code quality, fostering innovation, and continuously improving our technology landscape. While Macquarie offers hybrid working for many of our roles, this role does require 3 days a week in the advertised location. At Macquarie, our advantage is bringing together diverse people and empowering them to shape all kinds of possibilities. We are a global financial services group operating in 31 markets and with 56 years of unbroken profitability. Youll be part of a friendly and supportive team where everyone - no matter what r
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 .
NEW
At Person Centred Software, were building technology that makes a real difference in the lives of those in care. As a Software Engineer, youll contribute to the design and development of innovative software solutions that improve care outcomes across the UK. If you're passionate about writing clean, scalable code and collaborating within a high-performing, agile team, this is a fantastic opportunity to grow your impact in a meaningful sector. * Write clean, efficient, and maintainable code across the full software development life cycle * Develop front-end and back-end features using Microsoft .NET technologies, including Blazor and .NET Core * Collaborate with product managers and stakeholders to define requirements, acceptance criteria, and effort estimates * Ensure quality by writing unit and behaviour-driven tests (e.g., MS Test/XUnit, Playwright, Appium) for new
At Person Centred Software, were building technology that makes a real difference in the lives of those in care. As a Software Engineer, youll contribute to the design and development of innovative software solutions that improve care outcomes across the UK. If you're passionate about writing clean, scalable code and collaborating within a high-performing, agile team, this is a fantastic opportunity to grow your impact in a meaningful sector. * Write clean, efficient, and maintainable code across the full software development life cycle * Develop front-end and back-end features using Microsoft .NET technologies, including Blazor and .NET Core * Collaborate with product managers and stakeholders to define requirements, acceptance criteria, and effort estimates * Ensure quality by writing unit and behaviour-driven tests (e.g., MS Test/XUnit, Playwright, Appium) for new
NEW
Role - About FX Digital - FX Digital is a specialist Connected TV agency, providing a wide range of services, including Product Strategy, Design, Engineering, and Test Automation. We partner with global streaming brands such as Discovery+, BritBox, ATP Media, ITV, and Dyn. As a Software Engineer at FX Digital, you play a pivotal role in delivering Connected TV and living room experiences that reach hundreds of thousands of users. With your experience in application development and web technologies, you will deliver engaging user experiences for large screen devices. You are passionate about quality, continuously learning new technologies, and improving team processes. Collaborating effectively with the team, you contribute to both the technical and creative aspects of projects. Key Responsibilities * Engineer and develop responsive, fluid, and data driven user experie
Role - About FX Digital - FX Digital is a specialist Connected TV agency, providing a wide range of services, including Product Strategy, Design, Engineering, and Test Automation. We partner with global streaming brands such as Discovery+, BritBox, ATP Media, ITV, and Dyn. As a Software Engineer at FX Digital, you play a pivotal role in delivering Connected TV and living room experiences that reach hundreds of thousands of users. With your experience in application development and web technologies, you will deliver engaging user experiences for large screen devices. You are passionate about quality, continuously learning new technologies, and improving team processes. Collaborating effectively with the team, you contribute to both the technical and creative aspects of projects. Key Responsibilities * Engineer and develop responsive, fluid, and data driven user experie
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
About us - Were an early-stage company operating in stealth, and while were not publicly sharing full details just yet, we can assure you the work ahead is ambitious, meaningful and exciting. As you progress through the hiring process, well share more about our mission, our technology and the team youll be joining. For now, what matters most is finding people who are energised by the pace and possibility of an emerging company and who want to help shape something from the ground up. What We Offer * High-impact environment: Join a company shaping the future of software, working with a team thats redefining how AI meets real-world business needs * Ownership and visibility: In a small, high-performing team, the impact of your work isnt theoretical, it actively shapes the companys direction * Empowerment through innovation: Use cutting-edge AI tools internally.
About us - Were an early-stage company operating in stealth, and while were not publicly sharing full details just yet, we can assure you the work ahead is ambitious, meaningful and exciting. As you progress through the hiring process, well share more about our mission, our technology and the team youll be joining. For now, what matters most is finding people who are energised by the pace and possibility of an emerging company and who want to help shape something from the ground up. What We Offer * High-impact environment: Join a company shaping the future of software, working with a team thats redefining how AI meets real-world business needs * Ownership and visibility: In a small, high-performing team, the impact of your work isnt theoretical, it actively shapes the companys direction * Empowerment through innovation: Use cutting-edge AI tools internally.
At Person Centred Software, were building technology that makes a real difference in the lives of those in care. As a Frontend-focused Software Engineer, youll have a passion for User Interfaces and be experienced at working collaboratively with UI/UX designers, as well as Product Managers, Software Engineers, and Testers. You will contribute to the design and development of innovative software solutions that improve care outcomes across the UK. If you're passionate about writing clean, scalable code and collaborating within a high-performing, agile team, this is a fantastic opportunity to grow your impact in a meaningful sector. * Write clean, efficient, and maintainable code across the full software development life cycle * Develop front-end features using Microsoft .NET Blazor, while also contributing across the full-stack
At Person Centred Software, were building technology that makes a real difference in the lives of those in care. As a Frontend-focused Software Engineer, youll have a passion for User Interfaces and be experienced at working collaboratively with UI/UX designers, as well as Product Managers, Software Engineers, and Testers. You will contribute to the design and development of innovative software solutions that improve care outcomes across the UK. If you're passionate about writing clean, scalable code and collaborating within a high-performing, agile team, this is a fantastic opportunity to grow your impact in a meaningful sector. * Write clean, efficient, and maintainable code across the full software development life cycle * Develop front-end features using Microsoft .NET Blazor, while also contributing across the full-stack
Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game. About You - You are a Senior product / UX designer who works at the intersection of AI-assisted UX, monetization, communication desig
Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game. About You - You are a Senior product / UX designer who works at the intersection of AI-assisted UX, monetization, communication desig
Easyship is revolutionizing logistics for eCommerce. With our all-in-one cloud based shipping software, businesses of all shapes and sizes have the tools needed to scale globally. At Easyship we believe in accelerating borderless commerce. We're proud that a diversity of small business owners, crowdfunding campaigns, and global brands trust Easyship as their gateway to the world. To learn more about us click here. Job Title: Head of Product - Level: Head of Department - Location: London - Reports to: Co-Founder - Key Relationships: Product and Engineering teams - We're Easyship, a fast-growing SaaS powerhouse revolutionizing logistics. We operate globally with offices in North America, Europe and Asia. We're on the hunt for a Head of Product who's ready to dominate, hustle hard, and shape the future of global shipping. This isn't a gig for the faint-hearted. Mediocrit
Easyship is revolutionizing logistics for eCommerce. With our all-in-one cloud based shipping software, businesses of all shapes and sizes have the tools needed to scale globally. At Easyship we believe in accelerating borderless commerce. We're proud that a diversity of small business owners, crowdfunding campaigns, and global brands trust Easyship as their gateway to the world. To learn more about us click here. Job Title: Head of Product - Level: Head of Department - Location: London - Reports to: Co-Founder - Key Relationships: Product and Engineering teams - We're Easyship, a fast-growing SaaS powerhouse revolutionizing logistics. We operate globally with offices in North America, Europe and Asia. We're on the hunt for a Head of Product who's ready to dominate, hustle hard, and shape the future of global shipping. This isn't a gig for the faint-hearted. Mediocrit
Castleton Commodities International ( is a global leader in energy commodity trading and asset investment. Our Data Science & Technology team is central to our success, engineering the high-performance data, systems and innovative tools that power our commercial decision-making. We build platforms and forecasts that help our front-office teams understand market behavior, forecast price movements, and manage risk. Our team solves complex, high-impact challenges using a modern technology stack, including the latest in GenAI and the latest technologies. We develop everything in cloud-native infrastructure from structured data and real-time analytics to back testing engines, third party integrations, and internal libraries, all designed to give CCI a competitive edge in global commodities markets.
Castleton Commodities International ( is a global leader in energy commodity trading and asset investment. Our Data Science & Technology team is central to our success, engineering the high-performance data, systems and innovative tools that power our commercial decision-making. We build platforms and forecasts that help our front-office teams understand market behavior, forecast price movements, and manage risk. Our team solves complex, high-impact challenges using a modern technology stack, including the latest in GenAI and the latest technologies. We develop everything in cloud-native infrastructure from structured data and real-time analytics to back testing engines, third party integrations, and internal libraries, all designed to give CCI a competitive edge in global commodities markets.