Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations

Filters

Last 7 days
Sort byRelevance
Commute time
Locations
Salaries
Date posted
1 selected
    Type of Company
      Job types
      2 selected

        Related Jobs

        • Qa Automation
        • Quality Assurance
        • QA Analyst
        • Automation
        • Test Automation
        • IT
        • Software Development
        • Architecture
        • Testing
        • Design
        • Communication
        • Technology
        • Practicality
        • Service
        • Software Engineer

        show more
        Last 7 days
        Remove all filters

        Commute time

        Locations

        Popular searches nearby


        City of London
        301










        See all jobs in Chelmsford

        Salaries

        Date posted



        Last 7 days
        299


        Locations

        3 Permanent API jobs in Chelmsford + 20 miles

        296 exact matches jobs are outside your preferred location

        AI Engineer – Document Q&A (LLM Applications)

        Cognizant
        London
        £0 per annum
        Build, fine-tune, and evaluate LLM-based Q&A models using frameworks like AWS Bedrock, Langchain, HuggingFace Transformers or OpenAI API.
        Build, fine-tune, and evaluate LLM-based Q&A models using frameworks like AWS Bedrock, Langchain, HuggingFace Transformers or OpenAI API.
        more
        Microservices architecture, API-first approach, containerisation (Docker/Kubernetes), CI/CD pipelines * Knowledge of integration patterns, API gateways, and cloud-native deployments
        Microservices architecture, API-first approach, containerisation (Docker/Kubernetes), CI/CD pipelines * Knowledge of integration patterns, API gateways, and cloud-native deployments
        more
        API Development with C# ASP.Net Core
        API Development with C# ASP.Net Core
        NEW
        Data exchange and processing skills (e.g. ETL, ESB, API...)
        Data exchange and processing skills (e.g. ETL, ESB, API...)
        FEATURED
        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
        At BNY, our culture allows us to run our company better and enables employees growth and success. As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of the worlds investible assets. Every day, our teams harness cutting-edge AI and breakthrough technologies to collaborate with clients, driving transformative solutions that redefine industries and uplift communities worldwide. Recognized as a top destination for innovators, BNY is where bold ideas meet advanced technology and exceptional talent. Together, we power the future of finance and this is what #LifeAtBNY is all about. Join us and be part of something extraordinary. The Markets business helps our clients formulate, implement and operationalize their investment strategies. It provides clients with financing, execution, liquidity and collateral solut
        At BNY, our culture allows us to run our company better and enables employees growth and success. As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of the worlds investible assets. Every day, our teams harness cutting-edge AI and breakthrough technologies to collaborate with clients, driving transformative solutions that redefine industries and uplift communities worldwide. Recognized as a top destination for innovators, BNY is where bold ideas meet advanced technology and exceptional talent. Together, we power the future of finance and this is what #LifeAtBNY is all about. Join us and be part of something extraordinary. The Markets business helps our clients formulate, implement and operationalize their investment strategies. It provides clients with financing, execution, liquidity and collateral solut
        more
        The Website Team focuses on managing the Website with the CMS (Sanity) with the goal to create high-fidelity UI implementation, good SEO placement, accessibility, Core Web Vitals, API integrations, and a robust internal component system built on our internal design system.
        The Website Team focuses on managing the Website with the CMS (Sanity) with the goal to create high-fidelity UI implementation, good SEO placement, accessibility, Core Web Vitals, API integrations, and a robust internal component system built on our internal design system.
        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.
        more
        Identity verification and authentication flows (e.g. account security, MFA, API-based identity) * Experience across multiple product areas within a platform or API-based company
        Identity verification and authentication flows (e.g. account security, MFA, API-based identity) * Experience across multiple product areas within a platform or API-based company
        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).
        more
        Working with other members of the data team and wider business to support delivery of additional project components (API interfaces, Data Models, Data Sharing, RDM/MDM tools, ML Endpoints).
        Working with other members of the data team and wider business to support delivery of additional project components (API interfaces, Data Models, Data Sharing, RDM/MDM tools, ML Endpoints).
        more
        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

        Related Jobs


        show more

        Frequently Asked Questions

        How many permanent API jobs are there in Chelmsford?
        There are 3 permanent API jobs within 20 miles of Chelmsford available on CWJobs right now.

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