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        155 Contract API jobs in Watford + 20 miles

        Application Developer

        Wise Employment – Plymouth
        Marshgate Trading Estate, Maidenhead (SL6), SL6
        Market related
        PowerShell scripting, API development
        PowerShell scripting, API development

        Engineering Manager

        Platform Recruitment Limited
        Paddington, West London (W2)
        Unspecified
        Our client is developing a platform that streamlines operations and connectivity for firms in the alternative investments space through an API-driven architecture.
        Our client is developing a platform that streamlines operations and connectivity for firms in the alternative investments space through an API-driven architecture.
        more

        Application Support Consultant

        Henderson Scott
        Hemel Hempstead, Hertfordshire, HP2 7TG
        Negotiable
        FTP/SFTP, SSL Certificates, REST API, SOAP, Postman, Excel, CSV files ??
        FTP/SFTP, SSL Certificates, REST API, SOAP, Postman, Excel, CSV files ??
        FEATURED

        AI Prompt Engineer

        Staffworx Limited
        East London (E1)
        market rates, outside IR35, remote first, UK but 1-2 days on site
        Integrate LLMs into applications usingLangChain,LlamaIndex,Haystack,AutoGen and OpenAIs Assistant API patterns.
        Integrate LLMs into applications usingLangChain,LlamaIndex,Haystack,AutoGen and OpenAIs Assistant API patterns.
        more

        Java Engineer

        Profile 29
        South East London (SE1)
        From £45,000 to £60,000 per annum + hybrid working
        Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid
        Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid
        more

        Java Engineer

        Profile 29
        South East London (SE1)
        From £45,000 to £60,000 per annum + hybrid working
        Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid
        Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid
        more
        The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) standard facilities for the development of Active Pharmaceutical Ingredients (API), Formulation Development (FD) and Process Chemistry (PC).
        The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) standard facilities for the development of Active Pharmaceutical Ingredients (API), Formulation Development (FD) and Process Chemistry (PC).
        more
        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.
        more

        Data Engineer

        International Rescue Committee, U.k.
        City of London, London
        £48,550 - £58,800 a year
        The International Rescue Committee (IRC) responds to the world's worst humanitarian crises, helping to restore health, safety, education, economic wellbeing, and power to people devastated by conflict and disaster. Founded in 1933 at the call of Albert Einstein, the IRC is one of the world's largest international humanitarian non-governmental organizations (INGO), at work in more than 40 countries and 29 U.S. cities helping people to survive, reclaim control of their future and strengthen their communities. A force for humanity, IRC employees deliver lasting impact by restoring safety, dignity and hope to millions. If you're a solutions-driven, passionate change-maker, come join us in positively impacting the lives of millions of people world-wide for a better future. This position will sit within the Marketing Technology department.
        The International Rescue Committee (IRC) responds to the world's worst humanitarian crises, helping to restore health, safety, education, economic wellbeing, and power to people devastated by conflict and disaster. Founded in 1933 at the call of Albert Einstein, the IRC is one of the world's largest international humanitarian non-governmental organizations (INGO), at work in more than 40 countries and 29 U.S. cities helping people to survive, reclaim control of their future and strengthen their communities. A force for humanity, IRC employees deliver lasting impact by restoring safety, dignity and hope to millions. If you're a solutions-driven, passionate change-maker, come join us in positively impacting the lives of millions of people world-wide for a better future. This position will sit within the Marketing Technology department.
        more
        NEW
        About RedCloud - The global supply chain is brokencreating a $2 trillion inventory gap where essential consumer goods fail to reach the people who need them. Brands miss sales, distributors mismanage stock, and retailers face empty shelves. The result? Higher prices, slower growth, and lost opportunity across the board. RedCloud is fixing this. Our RedAI digital trading platform, bulk and retail trading exchanges connect key parts of the supply chainenabling bulk inventory exchange, streamlined digital payments, and generating vast quantities of aggregated market data. By applying AI and machine learning techniques, we deliver predictive market insight and trading recommendations straight back to the trading environmentfacilitating smarter everyday business decisions for our customers, from factory to warehouse to store.
        About RedCloud - The global supply chain is brokencreating a $2 trillion inventory gap where essential consumer goods fail to reach the people who need them. Brands miss sales, distributors mismanage stock, and retailers face empty shelves. The result? Higher prices, slower growth, and lost opportunity across the board. RedCloud is fixing this. Our RedAI digital trading platform, bulk and retail trading exchanges connect key parts of the supply chainenabling bulk inventory exchange, streamlined digital payments, and generating vast quantities of aggregated market data. By applying AI and machine learning techniques, we deliver predictive market insight and trading recommendations straight back to the trading environmentfacilitating smarter everyday business decisions for our customers, from factory to warehouse to store.
        more
        Design, build and govern marketing data foundation tagging, tracking, pipelines and modelling to create a single source of truth across brand direct, paid, social and CRM. Enable faster, better decisions with accurate data, integrated views (GA4, Salesforce, Databricks, COGNOS) and insight products (dashboards, attribution/MMM). Be the primary point of contact for all tracking and data issues ensuring reliability, compliance and speed. Own tagging and tracking standards for web/app (GTM, GA4, CM360/Floodlight, Meta pixel/event manager, consent mode) Define and maintain the marketing KPI dictionary and data model; steward the single source of truth. Define data pipelines between martech platforms and enterprise solutions (Salesforce, COGNOS, Databricks). Set QA/alerting SLAs, prioritise analytics backlog.
        Design, build and govern marketing data foundation tagging, tracking, pipelines and modelling to create a single source of truth across brand direct, paid, social and CRM. Enable faster, better decisions with accurate data, integrated views (GA4, Salesforce, Databricks, COGNOS) and insight products (dashboards, attribution/MMM). Be the primary point of contact for all tracking and data issues ensuring reliability, compliance and speed. Own tagging and tracking standards for web/app (GTM, GA4, CM360/Floodlight, Meta pixel/event manager, consent mode) Define and maintain the marketing KPI dictionary and data model; steward the single source of truth. Define data pipelines between martech platforms and enterprise solutions (Salesforce, COGNOS, Databricks). Set QA/alerting SLAs, prioritise analytics backlog.
        more
        Here at Appian, our values of Intensity and Excellence define who we are. We set high standards and live up to them, ensuring that everything we do is done with care and quality. We approach every challenge with ambition and commitment, holding ourselves and each other accountable to achieve the best results. When you join Appian, you'll be part of a passionate team dedicated to accomplishing hard things, together. Here at Appian, our core values of Respect, Work to Impact, Ambition, and Constructive Dissent & Resolution define who we are. In short, this means we constantly seek to understand the best for our customers, we go beyond completion in our work, we strive for excellence with intensity, and we embrace candid communication. These values guide our actions and shape our culture every day.
        Here at Appian, our values of Intensity and Excellence define who we are. We set high standards and live up to them, ensuring that everything we do is done with care and quality. We approach every challenge with ambition and commitment, holding ourselves and each other accountable to achieve the best results. When you join Appian, you'll be part of a passionate team dedicated to accomplishing hard things, together. Here at Appian, our core values of Respect, Work to Impact, Ambition, and Constructive Dissent & Resolution define who we are. In short, this means we constantly seek to understand the best for our customers, we go beyond completion in our work, we strive for excellence with intensity, and we embrace candid communication. These values guide our actions and shape our culture every day.
        more
        At Moody's, we unite the brightest minds to turn todays risks into tomorrows opportunities. We do this by striving to create an inclusive environment where everyone feels welcome to be who they arewith the freedom to exchange ideas, think innovatively, and listen to each other and customers in meaningful ways. Moodys is transforming how the world sees risk. As a global leader in ratings and integrated risk assessment, were advancing AI to move from insight to actionenabling intelligence that not only understands complexity but responds to it. We decode risk to unlock opportunity, helping our clients navigate uncertainty with clarity, speed, and confidence. If you are excited about this opportunity but do not meet every single requirement, please apply! You still may be a great fit for this role or other open roles.
        At Moody's, we unite the brightest minds to turn todays risks into tomorrows opportunities. We do this by striving to create an inclusive environment where everyone feels welcome to be who they arewith the freedom to exchange ideas, think innovatively, and listen to each other and customers in meaningful ways. Moodys is transforming how the world sees risk. As a global leader in ratings and integrated risk assessment, were advancing AI to move from insight to actionenabling intelligence that not only understands complexity but responds to it. We decode risk to unlock opportunity, helping our clients navigate uncertainty with clarity, speed, and confidence. If you are excited about this opportunity but do not meet every single requirement, please apply! You still may be a great fit for this role or other open roles.
        more

        Software Developer - Agentic AI Automation

        HF Holidays Limited
        Borehamwood, Hertfordshire
        £60,000 - £65,000 a year
        Location: Borehamwood / Hybrid - Contract: Permanent - Full Time 37.5 hours per week - Salary: £60,000 £65,000 per year - Job Benefits: 33 Days Holiday pro rata inclusive of bank holidays | Pension Contributions | Volunteer Day | Group Life Assurance | Cinema Discounts | Online Shopping Discounts | Cycle to work Scheme | Discounted Gym Membership | Virtual GP | Health & Wellbeing Support 24/7 Helplines with access to trained counsellors for support| Exclusive discounts on our holidays for you, your friends and family | Annual familiarization visit at any of our country houses for you and your family - As a Software Developer specialising in agentic AI automation, you will design, develop, and implement software solutions that leverage agent-based AI models to automate complex workflows and drive innovation.
        Location: Borehamwood / Hybrid - Contract: Permanent - Full Time 37.5 hours per week - Salary: £60,000 £65,000 per year - Job Benefits: 33 Days Holiday pro rata inclusive of bank holidays | Pension Contributions | Volunteer Day | Group Life Assurance | Cinema Discounts | Online Shopping Discounts | Cycle to work Scheme | Discounted Gym Membership | Virtual GP | Health & Wellbeing Support 24/7 Helplines with access to trained counsellors for support| Exclusive discounts on our holidays for you, your friends and family | Annual familiarization visit at any of our country houses for you and your family - As a Software Developer specialising in agentic AI automation, you will design, develop, and implement software solutions that leverage agent-based AI models to automate complex workflows and drive innovation.
        more
        The National Institute for Health and Care Research (NIHR) is the United Kingdoms largest funder of health and care research. The NIHR invests more than £1.6 billion a year of research funding from the Department of Health and Social Care (DHSC). The NIHRs research programmes, people, centres of excellence and systems together represent the most integrated health research system in the world. Established in 2006 by the Department of Health and Social Care (DHSC), the NIHRs mission is to improve the health and wealth of the nation through research. It funds, supports, and delivers high-quality research that addresses the needs of patients, the public, and the healthcare system. Job Description - The National Institute for Health and Care Research is seeking a strategic and experienced leader to head our Data and Analytics function.
        The National Institute for Health and Care Research (NIHR) is the United Kingdoms largest funder of health and care research. The NIHR invests more than £1.6 billion a year of research funding from the Department of Health and Social Care (DHSC). The NIHRs research programmes, people, centres of excellence and systems together represent the most integrated health research system in the world. Established in 2006 by the Department of Health and Social Care (DHSC), the NIHRs mission is to improve the health and wealth of the nation through research. It funds, supports, and delivers high-quality research that addresses the needs of patients, the public, and the healthcare system. Job Description - The National Institute for Health and Care Research is seeking a strategic and experienced leader to head our Data and Analytics function.
        more

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        Frequently Asked Questions

        How many contract API jobs are there in Watford?
        There are 155 contract API jobs within 20 miles of Watford available on CWJobs right now.

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