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27 Contract API jobs in Saffron Walden + 20 miles
734 exact matches jobs are outside your preferred location
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.
Extend capabilities through code Leverage with scripting languages such as Python and R to enhance BPM solutions with data processing, analytics integration, API connections, and intelligent automation that creates differentiated value
Extend capabilities through code Leverage with scripting languages such as Python and R to enhance BPM solutions with data processing, analytics integration, API connections, and intelligent automation that creates differentiated value
Understanding of SQL, API
Understanding of SQL, API
Work on our cloud components, which include our API backend services and Kubernetes controllers.
Work on our cloud components, which include our API backend services and Kubernetes controllers.
Experience with API-first platforms and optimizing front-end systems that consume complex API data.
Experience with API-first platforms and optimizing front-end systems that consume complex API data.
Proven experience leading cross-functional squads to deliver complex, high-impact initiatives in backend, API, or systems-focused domains. * Familiarity with API design and systems architecture.
Proven experience leading cross-functional squads to deliver complex, high-impact initiatives in backend, API, or systems-focused domains. * Familiarity with API design and systems architecture.
Proven track record leading cross-functional squads to deliver complex, transformation initiatives in backend, API, and systems-focused domains.
Proven track record leading cross-functional squads to deliver complex, transformation initiatives in backend, API, and systems-focused domains.
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.
Facilitate Onboarding: Youll be responsible for the technical onboarding of new clients, guiding them through API documentation, troubleshooting integration issues, and ensuring a seamless transition.
Facilitate Onboarding: Youll be responsible for the technical onboarding of new clients, guiding them through API documentation, troubleshooting integration issues, and ensuring a seamless transition.
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
Manage API/Feed demos, trials, and existing client relationships, ensuring high levels of customer satisfaction. * Support sales efforts by delivering effective client presentations, conducting demos using Data Services products (API, Feeds, Snowflake, etc.), communicating our value proposition, providing quotes, and defining licensing/contract terms.
Manage API/Feed demos, trials, and existing client relationships, ensuring high levels of customer satisfaction. * Support sales efforts by delivering effective client presentations, conducting demos using Data Services products (API, Feeds, Snowflake, etc.), communicating our value proposition, providing quotes, and defining licensing/contract terms.
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?
nCino offers exciting career opportunities for individuals who want to join the worldwide leader in cloud banking. As a PreSales Solution Architect you will use your SaaS & Salesforce expertise and work closely with banks and financial institutions to innovate financial services. You will lead the solutioning for business challenges and present and demonstrate the value of the nCino solution. Responsibilities * Be a Trusted Advisor to prospects and clients by leading presales conversations, * presentations and solutioning around nCino-specific architectural design * Be a Thought Leader and provide guidance as it relates to SaaS, cloud infrastructure and AI, especially in relation to financial services * Be a Solution Consultant and lead deep-dive discovery sessions with prospects to identify target solution architecture and advise on best practices to meet functional
nCino offers exciting career opportunities for individuals who want to join the worldwide leader in cloud banking. As a PreSales Solution Architect you will use your SaaS & Salesforce expertise and work closely with banks and financial institutions to innovate financial services. You will lead the solutioning for business challenges and present and demonstrate the value of the nCino solution. Responsibilities * Be a Trusted Advisor to prospects and clients by leading presales conversations, * presentations and solutioning around nCino-specific architectural design * Be a Thought Leader and provide guidance as it relates to SaaS, cloud infrastructure and AI, especially in relation to financial services * Be a Solution Consultant and lead deep-dive discovery sessions with prospects to identify target solution architecture and advise on best practices to meet functional
About 9fin - The world's largest asset class, debt, operates with the worst data. Technology has revolutionized equity markets with electronic trading, quant algos and instantaneous news. However, in debt capital markets, the picture is completely different. Our mission is to change this. 9fin's proprietary technology delivers fast and comprehensive financial, credit, legal & ESG analysis. Our clients are able to make faster, more informed decisions, win more business and most importantly, save time. Our fast growing list of clients include 9 of the top 10 Investment Banks, leading Asset Managers, Hedge Funds and Law Firms. What youll work on - As a Full Stack Product Engineer on the Onboarding & Activation team, you will be focused on revolutionizing the initial user experience at 9fin to drive significant growth and revenue.
About 9fin - The world's largest asset class, debt, operates with the worst data. Technology has revolutionized equity markets with electronic trading, quant algos and instantaneous news. However, in debt capital markets, the picture is completely different. Our mission is to change this. 9fin's proprietary technology delivers fast and comprehensive financial, credit, legal & ESG analysis. Our clients are able to make faster, more informed decisions, win more business and most importantly, save time. Our fast growing list of clients include 9 of the top 10 Investment Banks, leading Asset Managers, Hedge Funds and Law Firms. What youll work on - As a Full Stack Product Engineer on the Onboarding & Activation team, you will be focused on revolutionizing the initial user experience at 9fin to drive significant growth and revenue.
PIMCO is a global leader in active fixed income with deep expertise across public and private markets. We invest our clients capital across a range of fixed income and credit opportunities, leveraging our decades of experience navigating complex debt markets. Our flexible capital base and deep relationships with issuers have helped us become one of the worlds largest providers of traditional and nontraditional solutions for companies that need financing and investors who seek strong risk-adjusted returns. Since 1971, our people have shaped our organization through a high-performance inclusive culture, in which we celebrate diverse thinking. We invest in our people and strive to imprint our CORE values of Collaboration, Openness, Responsibility and Excellence. We believe each of us is here to help others succeed and this has led to PIMCO being recognized as an innovato
PIMCO is a global leader in active fixed income with deep expertise across public and private markets. We invest our clients capital across a range of fixed income and credit opportunities, leveraging our decades of experience navigating complex debt markets. Our flexible capital base and deep relationships with issuers have helped us become one of the worlds largest providers of traditional and nontraditional solutions for companies that need financing and investors who seek strong risk-adjusted returns. Since 1971, our people have shaped our organization through a high-performance inclusive culture, in which we celebrate diverse thinking. We invest in our people and strive to imprint our CORE values of Collaboration, Openness, Responsibility and Excellence. We believe each of us is here to help others succeed and this has led to PIMCO being recognized as an innovato
About KX - KX software powers the time-aware data-driven decisions that enable fast-moving companies to outpace competitors, realizing the full potential of their AI investments. The KX platform delivers transformational value by addressing data challenges related to completeness, timeliness and efficiency, ensuring companies understand change over time and can achieve faster, more accurate insights at any scale, cost-effectively. KX is essential to the operations of the world's top investment banks, aerospace and defence, high-tech manufacturing, healthcare and life sciences, automotive and fleet telematics organizations. The company has established offices and a robust customer base across North America, Europe, and Asia Pacific. Overview of the Role - We are seeking a Senior/Intermediate Java Engineer to join our R&D team.
About KX - KX software powers the time-aware data-driven decisions that enable fast-moving companies to outpace competitors, realizing the full potential of their AI investments. The KX platform delivers transformational value by addressing data challenges related to completeness, timeliness and efficiency, ensuring companies understand change over time and can achieve faster, more accurate insights at any scale, cost-effectively. KX is essential to the operations of the world's top investment banks, aerospace and defence, high-tech manufacturing, healthcare and life sciences, automotive and fleet telematics organizations. The company has established offices and a robust customer base across North America, Europe, and Asia Pacific. Overview of the Role - We are seeking a Senior/Intermediate Java Engineer to join our R&D team.
Senior Data Scientist II
Senior Data Scientist II
LEXISNEXIS RISK SOLUTIONS UK LIMITED T/a LexisNexis Risk Solutions Group
London
Competitive
Are you ready to take your data science expertise to the next level and lead impactful projects? Would you enjoy working on advanced machine learning models and cutting-edge analytics solutions? We are a fast-moving, high-impact Data Science & AI team building real-world GenAI and ML solutions across the entire LexisNexis business. Our work powers smarter decisions for Product, Sales, Finance, Marketing, Customer Success, and Engineeringeverything from predictive models to enterprise GenAI apps to automation that transforms how teams operate. We are data science generalists who love variety. One day, it is designing a new GenAI workflow, the next it is deploying a model into Salesforce or engineering a pipeline in Databricks. We own our projects end-to-end and partner directly with stakeholders to deliver solutions that get used and make a measurable difference.
Are you ready to take your data science expertise to the next level and lead impactful projects? Would you enjoy working on advanced machine learning models and cutting-edge analytics solutions? We are a fast-moving, high-impact Data Science & AI team building real-world GenAI and ML solutions across the entire LexisNexis business. Our work powers smarter decisions for Product, Sales, Finance, Marketing, Customer Success, and Engineeringeverything from predictive models to enterprise GenAI apps to automation that transforms how teams operate. We are data science generalists who love variety. One day, it is designing a new GenAI workflow, the next it is deploying a model into Salesforce or engineering a pipeline in Databricks. We own our projects end-to-end and partner directly with stakeholders to deliver solutions that get used and make a measurable difference.
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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! Are you interested in joining a collaborative team in a great office environment in an award-winning organization? At Axioma By SimCorp, we bring together highly skilled minds from across the world to r
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! Are you interested in joining a collaborative team in a great office environment in an award-winning organization? At Axioma By SimCorp, we bring together highly skilled minds from across the world to r
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Who are we? Howden is a global insurance group with employee ownership at its heart. Together, we have pushed the boundaries of insurance. We are united by a shared passion and no-limits mindset, and our strength lies in our ability to collaborate as a powerful international team comprised of 23,000 employees spanning over 56 countries. People join Howden for many different reasons, but they stay for the same one: our culture. Its what sets us apart, and the reason our employees have been turning down headhunters for years. Whatever your priorities work / life balance, career progression, sustainability, volunteering youll find like-minded people driving change at Howden. What is the role? We are looking for a Treasury Systems Analyst to join our Group Treasury team. The Treasury Systems Analyst is responsible for the Group Treasury Management system, Online Banking S
Who are we? Howden is a global insurance group with employee ownership at its heart. Together, we have pushed the boundaries of insurance. We are united by a shared passion and no-limits mindset, and our strength lies in our ability to collaborate as a powerful international team comprised of 23,000 employees spanning over 56 countries. People join Howden for many different reasons, but they stay for the same one: our culture. Its what sets us apart, and the reason our employees have been turning down headhunters for years. Whatever your priorities work / life balance, career progression, sustainability, volunteering youll find like-minded people driving change at Howden. What is the role? We are looking for a Treasury Systems Analyst to join our Group Treasury team. The Treasury Systems Analyst is responsible for the Group Treasury Management system, Online Banking S
Who are we? Howden is a global insurance group with employee ownership at its heart. Together, we have pushed the boundaries of insurance. We are united by a shared passion and no-limits mindset, and our strength lies in our ability to collaborate as a powerful international team comprised of 23,000 employees spanning over 56 countries. People join Howden for many different reasons, but they stay for the same one: our culture. Its what sets us apart, and the reason our employees have been turning down headhunters for years. Whatever your priorities work / life balance, career progression, sustainability, volunteering youll find like-minded people driving change at Howden. What is the role? We are looking for a Senior Treasury Systems Analyst to join our Group Treasury team. The Senior Treasury Systems Analyst is responsible for the Group Treasury Management system, On
Who are we? Howden is a global insurance group with employee ownership at its heart. Together, we have pushed the boundaries of insurance. We are united by a shared passion and no-limits mindset, and our strength lies in our ability to collaborate as a powerful international team comprised of 23,000 employees spanning over 56 countries. People join Howden for many different reasons, but they stay for the same one: our culture. Its what sets us apart, and the reason our employees have been turning down headhunters for years. Whatever your priorities work / life balance, career progression, sustainability, volunteering youll find like-minded people driving change at Howden. What is the role? We are looking for a Senior Treasury Systems Analyst to join our Group Treasury team. The Senior Treasury Systems Analyst is responsible for the Group Treasury Management system, On
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.
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.
Related Jobs
Locations
- The City, City (EC4)
- The City, City (EC3)
- Drybridge Hill
- Shoreditch
- Southwark
- Hinxton
- Lambeth
- Arundel Heights
- Bloomsbury
- Burton End
- City of London
- Cambridge
- Central London
- West End
- Milton Keynes
- South East London
- East London
- North West London
- South West London
- Stevenage
- London
- Cambridgeshire
- Buckinghamshire
- Hertfordshire
- Essex
- Northamptonshire
- Bedfordshire
- Suffolk
- Lincolnshire
- Berkshire
- South East
- East Anglia
- East Midlands
- Midlands