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        See all jobs in Essex

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        Last 14 days
        277

        67 Contract API jobs in Essex + 20 miles

        TypeScript Developer Full Stack - Fintech

        Client Server
        Shoreditch, East London (E1), EC2A
        £50000 - £60000 per annum + benefits
        TypeScript Developer / Engineer (Full Stack API React) London / WFH to £60k - Apply now to find out more about this TypeScript Developer / Engineer (Full Stack API React) opportunity.
        TypeScript Developer / Engineer (Full Stack API React) London / WFH to £60k - Apply now to find out more about this TypeScript Developer / Engineer (Full Stack API React) opportunity.
        more
        PREMIUM

        QA - Lead Automation Architect

        Anson Mccade
        North West London (NW1)
        £85,000 - £110,000 Annual
        Champion best practices across testing disciplines including unit, integration, UI, API, and performance * Knowledge of web, mobile, API/microservices testing and contract testing (e.g. PACT)
        Champion best practices across testing disciplines including unit, integration, UI, API, and performance * Knowledge of web, mobile, API/microservices testing and contract testing (e.g. PACT)
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        PREMIUM
        JNC are working with a leading Insurance client that are looking for an established Technical Architect who specialises in integration architecture, system design and API design within the insurance market. * Extensive experience with API implementations, Message Queues and Event Driven Architecture. * Expert skills with RESTful API design and API Gateway management.
        JNC are working with a leading Insurance client that are looking for an established Technical Architect who specialises in integration architecture, system design and API design within the insurance market. * Extensive experience with API implementations, Message Queues and Event Driven Architecture. * Expert skills with RESTful API design and API Gateway management.
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        Senior Backend Engineer

        Plexus Resource Solutions Ltd
        City of London (EC1)
        Unspecified
        Skilled in building robust, optimized API endpoints.
        Skilled in building robust, optimized API endpoints.
        NEW

        Full Stack Developer

        167 Solutions Ltd
        North West London (NW1)
        From £200 to £300 per annum
        We are looking for a strong Full Stack Developer to deliver a short-term project involving a static website build, API scraping, and structured JSON output. * Develop API scraping scripts to extract structured data reliably * Proven experience building API scrapers (Axios, Puppeteer, BeautifulSoup, Cheerio, or similar) * Knowledge of API rate limits and bypass methods
        We are looking for a strong Full Stack Developer to deliver a short-term project involving a static website build, API scraping, and structured JSON output. * Develop API scraping scripts to extract structured data reliably * Proven experience building API scrapers (Axios, Puppeteer, BeautifulSoup, Cheerio, or similar) * Knowledge of API rate limits and bypass methods
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        Backend Developer .NET

        Adroit People Ltd
        The City, City of London (EC2), EC2N 1HQ
        From £400 to £425 per day
        Work with Service Bus, Azure SQL, API Management, and Key Vault to deliver robust, secure, and scalable solutions. * Collaborate with front-end engineers to ensure efficient API design and cohesive end-to-end workflows. * Strong experience with Azure, including Container Apps, Functions, Service Bus, Networking and API Management.
        Work with Service Bus, Azure SQL, API Management, and Key Vault to deliver robust, secure, and scalable solutions. * Collaborate with front-end engineers to ensure efficient API design and cohesive end-to-end workflows. * Strong experience with Azure, including Container Apps, Functions, Service Bus, Networking and API Management.
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        Solution Architect

        McGregor Boyall Associates Limited
        West London (W10)
        Up to £700 per day
        Solutions Architect - 6 months £700 per day - This logistics business, based in central London, has undertaken a significant change and transformation programme, the outcome of which is a new multi SAAS platform that will underpins the future state of the architecture. As part of this programme we are looking for a Solution Architect to contribute to shaping the future-state architecture that enables the organisation to meet its strategic business goals. This role ensures that technology solutions directly support desired business outcomes - such as improved efficiency, customer experience, scalability, and innovation-while maintaining strong architectural integrity. The Solution Architect oversees the design of systems and applications across the enterprise and regularly reviews the application portfolio to maximise value, reduce complexity, and ensure agility.
        Solutions Architect - 6 months £700 per day - This logistics business, based in central London, has undertaken a significant change and transformation programme, the outcome of which is a new multi SAAS platform that will underpins the future state of the architecture. As part of this programme we are looking for a Solution Architect to contribute to shaping the future-state architecture that enables the organisation to meet its strategic business goals. This role ensures that technology solutions directly support desired business outcomes - such as improved efficiency, customer experience, scalability, and innovation-while maintaining strong architectural integrity. The Solution Architect oversees the design of systems and applications across the enterprise and regularly reviews the application portfolio to maximise value, reduce complexity, and ensure agility.
        more
        Solid understanding of system design principles and API development.
        Solid understanding of system design principles and API development.
        PREMIUM

        Senior Full Stack Web Developer

        Profile 29
        Loughton (IG10), IG10
        From £80,000 to £100,000 per annum + benefits (see advert)
        As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
        As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
        more

        Associate Engineering Manager - Salesforce

        The Stepstone Group
        Southwark, South East London (SE1), SE1 0TA
        Competitive salary
        Occasionally, being able to lend hands-on support to the team working on and using the following technologies: Salesforce (APEX classes, metadata API, etc.) and Salesforce CLI (SFDX), Visual Studio Code, Git, CI/CD, AWS * Technical knowledge and understanding of Salesforce (APEX classes, metadata API, etc.) and Salesforce CLI (SFDX); Sales cloud essential,?marketing cloud desirable, CPQ cloud?desirable,?
        Occasionally, being able to lend hands-on support to the team working on and using the following technologies: Salesforce (APEX classes, metadata API, etc.) and Salesforce CLI (SFDX), Visual Studio Code, Git, CI/CD, AWS * Technical knowledge and understanding of Salesforce (APEX classes, metadata API, etc.) and Salesforce CLI (SFDX); Sales cloud essential,?marketing cloud desirable, CPQ cloud?desirable,?
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        NEWPREMIUM

        Technical Business Analyst

        Aqovia UK Limited
        Central London (W1)
        From £60,000 to £80,000 per annum
        As a Technical Business Analyst you will be working on our consulting projects, primarily designing RESTful API services. * Capture and curate business requirements and system documentation in JIRA/Confluence, user stories, API design, API enhancements * Design RESTful web APIs for new and existing products in an API first context, in accordance with strategic guidance provided by the technical architect. Specify contracts for messaging and web services, primarily using JSON Schema and Open API Specification (Swagger), respectively. * Comfortable working with source code (Git) to manage API specifications. * Able to work with a web API testing tool such as Postman, including crafting authentication tokens
        As a Technical Business Analyst you will be working on our consulting projects, primarily designing RESTful API services. * Capture and curate business requirements and system documentation in JIRA/Confluence, user stories, API design, API enhancements * Design RESTful web APIs for new and existing products in an API first context, in accordance with strategic guidance provided by the technical architect. Specify contracts for messaging and web services, primarily using JSON Schema and Open API Specification (Swagger), respectively. * Comfortable working with source code (Git) to manage API specifications. * Able to work with a web API testing tool such as Postman, including crafting authentication tokens
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        Solutions Architect

        Deerfoot Recruitment Solutions
        City of London (EC2), EC2Y 9AE
        £70000 - £80000 per annum + + Benefits + Bonus + Hybrid Working
        Anti-Money Laundering / Financial Crime - Hybrid - 3 days per week in London (near Moorgate) Up to £80,000 + bonus + benefits - Banking / Financial Services - Are you ready to shape the next generation of AML and sanctions technology across the EMEA region of an international banking group? In this techno-functional role (60% technical, 40% functional), you will own the design and evolution of key Anti-Money Laundering and Sanction Screening platforms, working at the heart of Compliance Technology. You will turn complex regulatory requirements into scalable, secure solutions that protect the organisation and its clients. Working hybrid from the banks' London office near Moorgate, you will partner with Compliance, FinCrime, Risk and Technology teams to define the technical roadmap, drive best practice and ensure the platforms can handle massive volumes of transaction a
        Anti-Money Laundering / Financial Crime - Hybrid - 3 days per week in London (near Moorgate) Up to £80,000 + bonus + benefits - Banking / Financial Services - Are you ready to shape the next generation of AML and sanctions technology across the EMEA region of an international banking group? In this techno-functional role (60% technical, 40% functional), you will own the design and evolution of key Anti-Money Laundering and Sanction Screening platforms, working at the heart of Compliance Technology. You will turn complex regulatory requirements into scalable, secure solutions that protect the organisation and its clients. Working hybrid from the banks' London office near Moorgate, you will partner with Compliance, FinCrime, Risk and Technology teams to define the technical roadmap, drive best practice and ensure the platforms can handle massive volumes of transaction a
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        FEATURED

        Senior Android Engineer (Native Integration & Security)

        Ventula Consulting Limited
        The City, City of London (EC3), EC3V 9DU
        Up to £150,000 per annum
        Build a robust, efficient, and scalable client-side API integration layer to consume real-time security signals (like our proprietary Scam_Score) from the AI Core. Partner with the Senior Backend Engineer (Application & AI Orchestration) to define the API contracts and real-time data flow needed to power the Security Shield.
        Build a robust, efficient, and scalable client-side API integration layer to consume real-time security signals (like our proprietary Scam_Score) from the AI Core. Partner with the Senior Backend Engineer (Application & AI Orchestration) to define the API contracts and real-time data flow needed to power the Security Shield.
        more

        Senior Android Engineer (Native Integration & Security)

        Ventula Consulting Limited
        The City, City of London (EC3), EC3V 9DU
        Up to £150,000 per annum
        Build a robust, efficient, and scalable client-side API integration layer to consume real-time security signals (like our proprietary Scam_Score) from the AI Core. Partner with the Senior Backend Engineer (Application & AI Orchestration) to define the API contracts and real-time data flow needed to power the Security Shield.
        Build a robust, efficient, and scalable client-side API integration layer to consume real-time security signals (like our proprietary Scam_Score) from the AI Core. Partner with the Senior Backend Engineer (Application & AI Orchestration) to define the API contracts and real-time data flow needed to power the Security Shield.
        more
        We are seeking a foundational engineer to own our single greatest strategic asset: our unique, privileged access to network-level intelligence via the GSMA CAMARA API standard. * Own and buildthe Security Signal Ingestion path, the secure, low-latency, and out-of-band data channel connecting to our founding members' network API gateways. * Ensureall network API integrations meet the stringent P99 latency budgets (e.g., < 150ms) required to support our sub-500ms Time-to-Trust product goal. * Collaboratewith the platform team to build a parallel development path using mocked data to mitigate risks of network API delays. * Deep understanding of API design(REST, gRPC, Webhooks) and API security (OAuth 2.0, mTLS, JWTs).
        We are seeking a foundational engineer to own our single greatest strategic asset: our unique, privileged access to network-level intelligence via the GSMA CAMARA API standard. * Own and buildthe Security Signal Ingestion path, the secure, low-latency, and out-of-band data channel connecting to our founding members' network API gateways. * Ensureall network API integrations meet the stringent P99 latency budgets (e.g., < 150ms) required to support our sub-500ms Time-to-Trust product goal. * Collaboratewith the platform team to build a parallel development path using mocked data to mitigate risks of network API delays. * Deep understanding of API design(REST, gRPC, Webhooks) and API security (OAuth 2.0, mTLS, JWTs).
        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 67 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.