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95 Contract API jobs in The City, City of London + 20 miles
451 exact matches jobs are outside your preferred location
You will leverage your deep technical knowledge to build AI applications, intelligent agents, and API-based solutions, creating proof of concepts and transitioning these prototypes into scalable, cloud-based applications. Utilise your proficiency in Python (and relevant libraries such as OpenAI, LangChain, LlamaIndex, Pandas, NumPy) to design, develop, and deploy end-to-end AI systems, API integrations, and ETL/ELT pipelines in the cloud. * Strong understanding of LLM concepts, API orchestration, and agentic workflows, with a proven track record in designing, developing, and deploying AI solutions in Python. * Hands-on experience with data engineering tasks, including building ETL/ELT pipelines, containerisation (Docker), and API development and integration.
You will leverage your deep technical knowledge to build AI applications, intelligent agents, and API-based solutions, creating proof of concepts and transitioning these prototypes into scalable, cloud-based applications. Utilise your proficiency in Python (and relevant libraries such as OpenAI, LangChain, LlamaIndex, Pandas, NumPy) to design, develop, and deploy end-to-end AI systems, API integrations, and ETL/ELT pipelines in the cloud. * Strong understanding of LLM concepts, API orchestration, and agentic workflows, with a proven track record in designing, developing, and deploying AI solutions in Python. * Hands-on experience with data engineering tasks, including building ETL/ELT pipelines, containerisation (Docker), and API development and integration.
Design and implement complex data flows, API integrations, and background processing systems that handle high-volume operations reliably while maintaining system performance and data integrity * API design and implementation
Design and implement complex data flows, API integrations, and background processing systems that handle high-volume operations reliably while maintaining system performance and data integrity * API design and implementation
Nice to have: working knowledge of cloud data warehouses (e.g., BigQuery, Snowflake), API integrations and workflow automation.
Nice to have: working knowledge of cloud data warehouses (e.g., BigQuery, Snowflake), API integrations and workflow automation.
Proficient with Houdini API and Hscript and software development for Houdini pipeline is a particular emphasis. Familiarity with common API and SDK's with ability to learn quickly custom API concepts.
Proficient with Houdini API and Hscript and software development for Houdini pipeline is a particular emphasis. Familiarity with common API and SDK's with ability to learn quickly custom API concepts.
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)
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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.
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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.
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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.
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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
AWS API Gateway
AWS API Gateway
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.
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.
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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.
Define and manage the external access layer, creating a secure and governed API Gateway that empowers third-party developers to integrate independently. * Establish a consistent API publishing workflow for all internal squads, ensuring quality and governance as we scale our external offerings. You have a deep understanding of developer platforms and API ecosystems, with experience in both internal productivity and external integration. * Sector knowledge: You have technical fluency in areas like CI/CD, observability, API gateways, and infrastructure-as-code. Deliver a world-class external access layer, including a Developer Portal and governed API Gateway, to empower third-party developers to self-serve and integrate seamlessly.
Define and manage the external access layer, creating a secure and governed API Gateway that empowers third-party developers to integrate independently. * Establish a consistent API publishing workflow for all internal squads, ensuring quality and governance as we scale our external offerings. You have a deep understanding of developer platforms and API ecosystems, with experience in both internal productivity and external integration. * Sector knowledge: You have technical fluency in areas like CI/CD, observability, API gateways, and infrastructure-as-code. Deliver a world-class external access layer, including a Developer Portal and governed API Gateway, to empower third-party developers to self-serve and integrate seamlessly.
This role involves driving the product direction and execution of our Data Solutions offering, including API-based data products, data visualisation experience, and integrations with leading data distribution platforms such as Snowflake, AWS, and Databricks. * Develop and expand our suite of data and API products, including visualisation tools and integrations that enable customers to access and leverage Trustpilot's data at scale.
This role involves driving the product direction and execution of our Data Solutions offering, including API-based data products, data visualisation experience, and integrations with leading data distribution platforms such as Snowflake, AWS, and Databricks. * Develop and expand our suite of data and API products, including visualisation tools and integrations that enable customers to access and leverage Trustpilot's data at scale.
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
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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.)
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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?
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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
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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.