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        104 Contract API jobs in Essex + 20 miles

        Salesforce Developer

        Experis
        City of London (EC1)
        £500 - £525 per day
        12 months - Remote - Inside IR35 - Umbrella only - Active SC clearance required - As a Salesforce Developer, you will lead the development of custom solutions on the Salesforce platform. You will be responsible for writing Apex code, creating visual force pages, and implementing integrations. You will have a strong understanding of the Salesforce platform and experience leading successful projects. A Senior Salesforce Developer will have a deep understanding of the Salesforce platform and the ability to develop complex solutions, mentor and lead the development team, troubleshoot and provide technical support to clients. They will also have a solid understanding of web development concepts and languages and keep up-to-date with new Salesforce features and best practices. * Skilled in Apex, HTML, JavaScript (ES6+), CSS, SLDS, and Salesforce DX.
        12 months - Remote - Inside IR35 - Umbrella only - Active SC clearance required - As a Salesforce Developer, you will lead the development of custom solutions on the Salesforce platform. You will be responsible for writing Apex code, creating visual force pages, and implementing integrations. You will have a strong understanding of the Salesforce platform and experience leading successful projects. A Senior Salesforce Developer will have a deep understanding of the Salesforce platform and the ability to develop complex solutions, mentor and lead the development team, troubleshoot and provide technical support to clients. They will also have a solid understanding of web development concepts and languages and keep up-to-date with new Salesforce features and best practices. * Skilled in Apex, HTML, JavaScript (ES6+), CSS, SLDS, and Salesforce DX.
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        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.
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        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
        NEW

        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
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        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.
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        NEW
        Who we're looking for - This team is part of Platform Control and Support which serves as a single-entry point for impact assessment and platform change. Within this function the Commitment Control & Support team is responsible for ensuring robust control and oversight of all mandate and investment management related commitments across our platforms. Supporting the effective assessment, management, and governance of commitments arising from regulatory, legal, and operational requirements. The team prioritises client experience, risk reduction and efficiency, maximising reuse of platform capabilities and driving standardisation. The team develops automated tools to optimise the capture and maintenance of all types of commitments, mandate changes, parameter updates, and operational process controls.
        Who we're looking for - This team is part of Platform Control and Support which serves as a single-entry point for impact assessment and platform change. Within this function the Commitment Control & Support team is responsible for ensuring robust control and oversight of all mandate and investment management related commitments across our platforms. Supporting the effective assessment, management, and governance of commitments arising from regulatory, legal, and operational requirements. The team prioritises client experience, risk reduction and efficiency, maximising reuse of platform capabilities and driving standardisation. The team develops automated tools to optimise the capture and maintenance of all types of commitments, mandate changes, parameter updates, and operational process controls.
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        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.
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        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.
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        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.
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        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.
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        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.
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        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

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        What is the average salary for API in Essex?

        Average salary per year
        £47,499

        The average salary for a API in Essex is £47,499. API in Essex salaries range from £37,499 to £47,499.

        Frequently Asked Questions

        How many contract API jobs are there in Essex?
        There are 104 contract API jobs within 20 miles of Essex available on CWJobs right now.

        Where in Essex are these contract jobs?
        You can find contract jobs in Loughton, Saffron Walden, Billericay.

        What other similar jobs are there to contract API jobs in Essex?
        As well as contract API jobs in Essex, you can find contract Qa Automation, QA Analyst, Site Reliability Engineer, amongst many others.