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        46 Permanent API jobs in Hertford + 20 miles

        Umbraco Developer

        Sanderson Recruitment
        City of London (EC1), EC1
        £60000 - £70000 per annum
        API integration's
        API integration's
        FEATURED
        Strong API automation experience, framework design capability and the ability to influence senior stakeholders are essential. * Strong API automation capability (design, data, validation)
        Strong API automation experience, framework design capability and the ability to influence senior stakeholders are essential. * Strong API automation capability (design, data, validation)
        more
        FEATURED

        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

        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

        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
        Are you a technical visionary ready to shape the future of global commerce? We are partnering with a world-leading family of iconic activewear and footwear brands to find a Digital Commerce Architect. This is a pivotal role owning the architectural evolution of a Shopify-led ecosystem across B2B and D2C. You will act as the technical authority, managing a diverse digital backlog and governing a multi-vendor environment to deliver scalable, secure, and future-ready solutions. The Requirements * Proven experience as a Digital or Commerce Architect in B2B/D2C. * Deep expertise in Shopify architecture and the supporting app estate. * Strong understanding of MACH, headless, and composable commerce. * Expertise in managing third-party integrators and APIs (SAP, PIM, CRM). * Leadership skills to mentor engineers and influence senior stakeholders. The Benefits
        Are you a technical visionary ready to shape the future of global commerce? We are partnering with a world-leading family of iconic activewear and footwear brands to find a Digital Commerce Architect. This is a pivotal role owning the architectural evolution of a Shopify-led ecosystem across B2B and D2C. You will act as the technical authority, managing a diverse digital backlog and governing a multi-vendor environment to deliver scalable, secure, and future-ready solutions. The Requirements * Proven experience as a Digital or Commerce Architect in B2B/D2C. * Deep expertise in Shopify architecture and the supporting app estate. * Strong understanding of MACH, headless, and composable commerce. * Expertise in managing third-party integrators and APIs (SAP, PIM, CRM). * Leadership skills to mentor engineers and influence senior stakeholders. The Benefits
        more
        TJX Companies - At TJX Companies, every day brings new opportunities for growth, exploration, and achievement. You'll be part of our vibrant team that embraces diversity, fosters collaboration, and prioritizes your development. Whether you're working in our four global Home Offices, Distribution Centers or Retail Stores-TJ Maxx, Marshalls, Homegoods, Homesense, Sierra, Winners, and TK Maxx, you'll find abundant opportunities to learn, thrive, and make an impact. Come join our TJX family-a Fortune 100 company and the world's leading off-price retailer. Wh o we are - The Enterprise Architecture team at TJX drives technology strategy , innovation, and governance across multiple technical domains to ensure all technology decisions align with business goals and enterprise standards. We are seeking a Senior Enterprise Architect with d eep ServiceNow experience to lead the design, ...
        TJX Companies - At TJX Companies, every day brings new opportunities for growth, exploration, and achievement. You'll be part of our vibrant team that embraces diversity, fosters collaboration, and prioritizes your development. Whether you're working in our four global Home Offices, Distribution Centers or Retail Stores-TJ Maxx, Marshalls, Homegoods, Homesense, Sierra, Winners, and TK Maxx, you'll find abundant opportunities to learn, thrive, and make an impact. Come join our TJX family-a Fortune 100 company and the world's leading off-price retailer. Wh o we are - The Enterprise Architecture team at TJX drives technology strategy , innovation, and governance across multiple technical domains to ensure all technology decisions align with business goals and enterprise standards. We are seeking a Senior Enterprise Architect with d eep ServiceNow experience to lead the design, ...
        more

        AI Enterprise Architect

        DXC
        Moorgate, City of London (EC2), EC2V
        Competitive Salary
        Location - Erskine, Newcastle, Farnborough or London - Candidates are required to be eligible for clearance - The AI Enterprise Architect defines the target-state AI architecture and multi-year roadmap to enable scalable, secure, and governed AI adoption across the enterprise. This senior role provides strategic leadership, vendor and platform guidance, and architectural governance across AI initiatives, ensuring alignment with business strategy, enterprise standards, and regulatory requirements. * Governance & Standards: Establish AI governance frameworks, policies, and playbooks for model development, data usage, security, ethical AI, and compliance. * Strategic Leadership: Provide architectural leadership and direction across delivery teams, ensuring consistent adoption of AI standards and patterns.
        Location - Erskine, Newcastle, Farnborough or London - Candidates are required to be eligible for clearance - The AI Enterprise Architect defines the target-state AI architecture and multi-year roadmap to enable scalable, secure, and governed AI adoption across the enterprise. This senior role provides strategic leadership, vendor and platform guidance, and architectural governance across AI initiatives, ensuring alignment with business strategy, enterprise standards, and regulatory requirements. * Governance & Standards: Establish AI governance frameworks, policies, and playbooks for model development, data usage, security, ethical AI, and compliance. * Strategic Leadership: Provide architectural leadership and direction across delivery teams, ensuring consistent adoption of AI standards and patterns.
        more
        PREMIUM

        Workflow Developer

        Lynx Recruitment Limited
        City of London (EC2V)
        Up to £65,000 per annum
        Lynx Recruitment is seeking a skilled Workflow Developer to design, develop, and improve workflows, automations, and system integrations that support business operations. The successful candidate will work closely with stakeholders to translate operational needs into secure, reliable, and well-documented technical solutions. This is an excellent opportunity to work in a dynamic environment with modern hybrid working policies, collaborative teams, and exposure to cutting-edge business systems. Responsibilities * Design, build, and maintain workflows, automations, and system integrations across core business systems. * Create and optimize SQL queries, stored procedures, and data routines to support workflow logic and reporting. * Develop integrations using APIs, REST services, and approved low-code or integration tools.
        Lynx Recruitment is seeking a skilled Workflow Developer to design, develop, and improve workflows, automations, and system integrations that support business operations. The successful candidate will work closely with stakeholders to translate operational needs into secure, reliable, and well-documented technical solutions. This is an excellent opportunity to work in a dynamic environment with modern hybrid working policies, collaborative teams, and exposure to cutting-edge business systems. Responsibilities * Design, build, and maintain workflows, automations, and system integrations across core business systems. * Create and optimize SQL queries, stored procedures, and data routines to support workflow logic and reporting. * Develop integrations using APIs, REST services, and approved low-code or integration tools.
        more

        Junior Integration Analyst

        Altro
        Letchworth Garden City (SG6), SG6 1NW
        Competitive salary plus additional benefits,
        Are you curious about how systems talk to each other? Do you enjoy solving problems, working with data, and learning new technical skills? If so, this could be the perfect next step in your IT career. We’re looking for a Junior Integration Specialist to join our IT Department and support the delivery of our Global Integration Roadmap. You’ll work alongside experienced Integration Specialists and Analysts, helping to build, test, and maintain the connections that keep our systems running smoothly, both internally and with our external partners. This is a fantastic opportunity to develop hands-on experience in integrations, data flows, APIs, and EDI, while working with tools such as SSIS, SQL, and ZappySys. This permanent, full time, hybrid working ( 3 days a week in the office) is based at our Letchworth Garden City Head office.
        Are you curious about how systems talk to each other? Do you enjoy solving problems, working with data, and learning new technical skills? If so, this could be the perfect next step in your IT career. We’re looking for a Junior Integration Specialist to join our IT Department and support the delivery of our Global Integration Roadmap. You’ll work alongside experienced Integration Specialists and Analysts, helping to build, test, and maintain the connections that keep our systems running smoothly, both internally and with our external partners. This is a fantastic opportunity to develop hands-on experience in integrations, data flows, APIs, and EDI, while working with tools such as SSIS, SQL, and ZappySys. This permanent, full time, hybrid working ( 3 days a week in the office) is based at our Letchworth Garden City Head office.
        more
        PREMIUM

        Senior Integration Engineer

        DGH Recruitment
        The City, City of London (EC2), EC2M 7PP
        £80000 - £90000 per annum
        DGH Recruitment are currently recruiting on behalf of a leading client in the professional services industry who require a Senior Integration Engineer to join the firm in London. You will be responsible for designing, building, and supporting scalable integrations using Workato. Please note: This role will be largely remote with occasional ad-hoc visits to the London office when required. The hours for this role are 11am-7pm to align with the US team. * Design, build, test, and maintain integrations using Workato. * Leverage advanced Workato capabilities, including Recipe design and optimization, Custom connectors and SDKs, On-premise agents, Error handling, retries, and monitoring best practices. * Ensure integrations are secure, scalable, resilient, and aligned with architectural standards. * Perform regular code and recipe reviews, providing constructive feedback to ...
        DGH Recruitment are currently recruiting on behalf of a leading client in the professional services industry who require a Senior Integration Engineer to join the firm in London. You will be responsible for designing, building, and supporting scalable integrations using Workato. Please note: This role will be largely remote with occasional ad-hoc visits to the London office when required. The hours for this role are 11am-7pm to align with the US team. * Design, build, test, and maintain integrations using Workato. * Leverage advanced Workato capabilities, including Recipe design and optimization, Custom connectors and SDKs, On-premise agents, Error handling, retries, and monitoring best practices. * Ensure integrations are secure, scalable, resilient, and aligned with architectural standards. * Perform regular code and recipe reviews, providing constructive feedback to ...
        more

        Sharepoint Developer & Administrator

        DGH Recruitment
        City of London (EC1)
        £85000 - £93000 per annum + Benefits
        Hybrid working: 3 days per week required in the office. DGH Recruitment are currently recruiting on behalf of a global law firm who are looking for a Sharepoint Developer & Administrator to join the team on a permanent basis in their London office as they look to grow their IT function within the EMEA region. They are seeking a highly skilled Senior SharePoint Developer & Administrator to design, develop, administer, and modernize their SharePoint environments across SharePoint Subscription Edition (SE) and SharePoint Online. This role will combine hands-on custom development with enterprise platform administration, including system maintenance, updates, patching, governance, and intranet design. Responsibilities; - Sharepoint development and modernisation - Sharepoint administration and operations - Sharepoint on prem integration - Technical documentation
        Hybrid working: 3 days per week required in the office. DGH Recruitment are currently recruiting on behalf of a global law firm who are looking for a Sharepoint Developer & Administrator to join the team on a permanent basis in their London office as they look to grow their IT function within the EMEA region. They are seeking a highly skilled Senior SharePoint Developer & Administrator to design, develop, administer, and modernize their SharePoint environments across SharePoint Subscription Edition (SE) and SharePoint Online. This role will combine hands-on custom development with enterprise platform administration, including system maintenance, updates, patching, governance, and intranet design. Responsibilities; - Sharepoint development and modernisation - Sharepoint administration and operations - Sharepoint on prem integration - Technical documentation
        more

        .NET Core Backend Developer

        EXL Service
        The City, City of London (EC3), EC3N 1DD
        A competitive salary with a generous bonus and additional benefits
        EXL (NASDAQ: EXLS)is a global data and artificial intelligence ("AI") company that offers services and solutions to reinvent client business models, drive better outcomes and unlock growth with speed. EXL harnesses the power of data, AI, and deep industry knowledge to transform businesses, including the worlds leading corporations in industries including insurance, healthcare, banking and financial services, media and retail, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect. We are headquartered in New York and have more than 60,000 employees spanning six continents. Role Title:.NET Core Backend Developer - BU/Segment:Analytics /Insurance - Location: London, United Kingdom (Flexible hybrid working) Employment Type:Permanent - EXL is seeking an experienced.NET Core Backend Developerto join our Analytics team ...
        EXL (NASDAQ: EXLS)is a global data and artificial intelligence ("AI") company that offers services and solutions to reinvent client business models, drive better outcomes and unlock growth with speed. EXL harnesses the power of data, AI, and deep industry knowledge to transform businesses, including the worlds leading corporations in industries including insurance, healthcare, banking and financial services, media and retail, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect. We are headquartered in New York and have more than 60,000 employees spanning six continents. Role Title:.NET Core Backend Developer - BU/Segment:Analytics /Insurance - Location: London, United Kingdom (Flexible hybrid working) Employment Type:Permanent - EXL is seeking an experienced.NET Core Backend Developerto join our Analytics team ...
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        AI Semantic Architect

        DXC
        Moorgate, City of London (EC2), EC2V
        Competitive Salary
        Location - Erskine, Newcastle, Farnborough or London - Candidates are required to be eligible for clearance - What Youll Do * Design Ontologies: Develop and maintain ontologies using OWL/RDF to model enterprise data domains and relationships. * Build Knowledge Graphs: Create and manage enterprise knowledge graphs that unify diverse data sources. * Semantic Querying: Develop and optimise SPARQL queries for advanced data retrieval and analytics. * Ensure Data Quality: Implement semantic validation rules (e.g., SHACL, OWL constraints) for data integrity and interoperability. * Integrate with Enterprise Systems: Embed semantic models into data pipelines, APIs, and enterprise workflows. * Collaborate with AI Teams: Enable AI agents and LLMs to leverage ontologies and knowledge graphs for context-aware reasoning.
        Location - Erskine, Newcastle, Farnborough or London - Candidates are required to be eligible for clearance - What Youll Do * Design Ontologies: Develop and maintain ontologies using OWL/RDF to model enterprise data domains and relationships. * Build Knowledge Graphs: Create and manage enterprise knowledge graphs that unify diverse data sources. * Semantic Querying: Develop and optimise SPARQL queries for advanced data retrieval and analytics. * Ensure Data Quality: Implement semantic validation rules (e.g., SHACL, OWL constraints) for data integrity and interoperability. * Integrate with Enterprise Systems: Embed semantic models into data pipelines, APIs, and enterprise workflows. * Collaborate with AI Teams: Enable AI agents and LLMs to leverage ontologies and knowledge graphs for context-aware reasoning.
        more
        PREMIUM

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        Frequently Asked Questions

        How many permanent API jobs are there in Hertford?
        There are 46 permanent API jobs within 20 miles of Hertford available on CWJobs right now.

        What other similar jobs are there to permanent API jobs in Hertford?
        As well as permanent API jobs in Hertford, you can find permanent IT, Software Development, Architecture, amongst many others.