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        83 API jobs in Watford + 20 miles

        334 exact matches jobs are outside your preferred location

        Growth Analyst - EMEA

        XE.com
        London
        Competitive
        We provide a comprehensive range of currency services and products, including our Currency Converter, Market Analysis, Currency Data API and quick, easy, secure Money Transfers for individuals and businesses.
        We provide a comprehensive range of currency services and products, including our Currency Converter, Market Analysis, Currency Data API and quick, easy, secure Money Transfers for individuals and businesses.
        more
        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.
        more
        Creating and Maintaining Documentation: Develop high-quality product documentation, including user guides, API references, release notes, FAQs, and onboarding materials using both traditional methods as well as utilising modern AI tooling.
        Creating and Maintaining Documentation: Develop high-quality product documentation, including user guides, API references, release notes, FAQs, and onboarding materials using both traditional methods as well as utilising modern AI tooling.
        more
        Full-Stack Feature Delivery: Design and build high-quality features covering both Front-end and Back-end, including robust API integration and effective data management (database interactions).
        Full-Stack Feature Delivery: Design and build high-quality features covering both Front-end and Back-end, including robust API integration and effective data management (database interactions).
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        Strong understanding of cloud native architectures, SaaS solutions (Salesforce, SAP, Dynamics CRM,ServiceNow, etc..), cybersecurity posture fundamentals, API ecosystems and legacy on-premise enterprise architectures
        Strong understanding of cloud native architectures, SaaS solutions (Salesforce, SAP, Dynamics CRM,ServiceNow, etc..), cybersecurity posture fundamentals, API ecosystems and legacy on-premise enterprise architectures
        more
        Job title: Machine Learning Engineer - Tech Lead - Location: London, Bristol, Edinburgh - Salary: £72,000 - £85,250 - Reporting to: Head of Data Science & Products - Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination. We help energy companies overcome today's challenges while accelerating the shift to a clean, electrified future. Our platform orchestrates millions of real-time decisions across homes, devices, markets and grids. By combining predictive algorithms with human-centred design, Kaluza makes clean energy dependable, affordable and adaptive to everyday life. With teams across Europe, North America, Asia and Australia, and a joint venture with Mitsubishi Corporation in Japan, we power leading companies including OVO, AGL and ENGIE, as well as innovators like Volvo and Volkswagen.
        Job title: Machine Learning Engineer - Tech Lead - Location: London, Bristol, Edinburgh - Salary: £72,000 - £85,250 - Reporting to: Head of Data Science & Products - Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination. We help energy companies overcome today's challenges while accelerating the shift to a clean, electrified future. Our platform orchestrates millions of real-time decisions across homes, devices, markets and grids. By combining predictive algorithms with human-centred design, Kaluza makes clean energy dependable, affordable and adaptive to everyday life. With teams across Europe, North America, Asia and Australia, and a joint venture with Mitsubishi Corporation in Japan, we power leading companies including OVO, AGL and ENGIE, as well as innovators like Volvo and Volkswagen.
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        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).
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        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.
        more
        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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        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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        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.)
        more
        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?
        more
        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
        more
        Bicycle Therapeutics is a clinical-stage pharmaceutical company developing a novel class of medicines, referred to as Bicycle molecules, for diseases that are underserved by existing therapeutics. Bicycle molecules are fully synthetic short peptides constrained with small molecule scaffolds to form two loops that stabilize their structural geometry. This constraint facilitates target binding with high affinity and selectivity, making Bicycle molecules attractive candidates for drug development. The company is evaluating zelenectide pevedotin (formerly BT8009), a Bicycle Drug Conjugate (BDC) targeting Nectin-4, a well-validated tumor antigen; BT5528, a BDC molecule targeting EphA2, a historically undruggable target; and BT7480, a Bicycle Tumor-Targeted Immune Cell Agonist (Bicycle TICA) targeting Nectin-4 and agonizing CD137, in company-sponsored clinical trials.
        Bicycle Therapeutics is a clinical-stage pharmaceutical company developing a novel class of medicines, referred to as Bicycle molecules, for diseases that are underserved by existing therapeutics. Bicycle molecules are fully synthetic short peptides constrained with small molecule scaffolds to form two loops that stabilize their structural geometry. This constraint facilitates target binding with high affinity and selectivity, making Bicycle molecules attractive candidates for drug development. The company is evaluating zelenectide pevedotin (formerly BT8009), a Bicycle Drug Conjugate (BDC) targeting Nectin-4, a well-validated tumor antigen; BT5528, a BDC molecule targeting EphA2, a historically undruggable target; and BT7480, a Bicycle Tumor-Targeted Immune Cell Agonist (Bicycle TICA) targeting Nectin-4 and agonizing CD137, in company-sponsored clinical trials.
        more

        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.
        more
        NEW
        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
        more
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        Frequently Asked Questions

        How many API jobs are there in Watford?
        There are 83 API jobs within 20 miles of Watford available on CWJobs right now.

        What other similar jobs are there to API jobs in Watford?
        As well as API jobs in Watford, you can find Qa Automation, Quality Assurance, QA Analyst, amongst many others.