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        135 Permanent API jobs in Watford + 20 miles

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        Senior Software Engineer

        Red Badger
        London
        Competitive
        Test automation following Test Driven Development practices including unit testing, API testing, and end-to-end testing
        Test automation following Test Driven Development practices including unit testing, API testing, and end-to-end testing
        more
        We are now scaling up with applications designed for major meeting platforms, real-time communication channels, and a powerful Public API to extend our functionality to a broader set of applications.
        We are now scaling up with applications designed for major meeting platforms, real-time communication channels, and a powerful Public API to extend our functionality to a broader set of applications.
        more
        Designed robust data architectures with a strong grasp of distributed systems, API development, and the patterns that make complex data processing reliable and maintainable.
        Designed robust data architectures with a strong grasp of distributed systems, API development, and the patterns that make complex data processing reliable and maintainable.
        more
        Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
        Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
        more
        NEW
        IT Jobs in Poland With Work Sponsorship / VISA Hiring at Infinity Quest (Please apply if you are currently in Poland) Already living in Poland? We're hiring experienced tech professionals for global projects - full work permit provided. Only candidates based in Poland will be considered. 1. DevOps Engineer (AWS / Azure / GCP | CI/CD | Terraform / Ansible | Kubernetes) 2. Cloud Data Engineer (AWS (Redshift, Glue) / Azure (ADF, Synapse) / GCP (BigQuery, Dataflow) | Python | SQL | Spark | DBT) 3. Full Stack Engineer (React / Angular | Java / Python / Node.js | Cloud) 4. Java Backend Developer (Java | Spring Boot | Microservices | Cloud Platforms) 5. Data Engineer (Power BI / MSBI | Python | SQL | Snowflake) 6. Data Scientist / ML Engineer (Python | Pandas | TensorFlow / PyTorch | Data Modelling) 7. Golang Developer (Golang | REST APIs | Concurrency | Cloud-native develop
        IT Jobs in Poland With Work Sponsorship / VISA Hiring at Infinity Quest (Please apply if you are currently in Poland) Already living in Poland? We're hiring experienced tech professionals for global projects - full work permit provided. Only candidates based in Poland will be considered. 1. DevOps Engineer (AWS / Azure / GCP | CI/CD | Terraform / Ansible | Kubernetes) 2. Cloud Data Engineer (AWS (Redshift, Glue) / Azure (ADF, Synapse) / GCP (BigQuery, Dataflow) | Python | SQL | Spark | DBT) 3. Full Stack Engineer (React / Angular | Java / Python / Node.js | Cloud) 4. Java Backend Developer (Java | Spring Boot | Microservices | Cloud Platforms) 5. Data Engineer (Power BI / MSBI | Python | SQL | Snowflake) 6. Data Scientist / ML Engineer (Python | Pandas | TensorFlow / PyTorch | Data Modelling) 7. Golang Developer (Golang | REST APIs | Concurrency | Cloud-native develop
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        You'll work across modern architectures, leveraging containerisation, event-driven design, and API-first principles to solve complex integration challenges. * Design and manage secure REST/GraphQL APIs via API Gateway, including authentication, throttling, and schema validation. * Apply best practices in Kubernetes and API security, including TLS, KMS, RBAC, and service-to-service authentication. * Strong API design and security expertise (OpenAPI, OAuth2, JWT).
        You'll work across modern architectures, leveraging containerisation, event-driven design, and API-first principles to solve complex integration challenges. * Design and manage secure REST/GraphQL APIs via API Gateway, including authentication, throttling, and schema validation. * Apply best practices in Kubernetes and API security, including TLS, KMS, RBAC, and service-to-service authentication. * Strong API design and security expertise (OpenAPI, OAuth2, JWT).
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        PREMIUM
        Experience working with software systems including querying, SQL scripting, and working with API development * Technical understanding of Meta advertising products (including Ads and Pages API, Identity Platform) * Experience working with API documents, calling APIs using scripts, and testing APIs
        Experience working with software systems including querying, SQL scripting, and working with API development * Technical understanding of Meta advertising products (including Ads and Pages API, Identity Platform) * Experience working with API documents, calling APIs using scripts, and testing APIs
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        Solution Architect - Oracle Fusion ERP - Contract Length: 12 Months (likely to extend) Location: Hybrid (Hertfordshire or Warwick) Day Rate: £1000 Inside IR35 - Start Date: ASAP - We're seeking an experienced Oracle Fusion ERP Solution Architect to lead the design, implementation, and optimisation of Oracle Fusion Cloud ERP solutions as part of a large scale transformation programme. You'll play a key role in ensuring scalable, secure, and high performing ERP platforms across Finance, Procurement, HCM, and SCM, while driving cloud first adoption and seamless integration with enterprise systems. Key Experience Required * 7+ years' experience in ERP architecture, with at least 3 years in Oracle Fusion Cloud ERP * Expertise in Oracle Fusion modules: Financials, Procurement, HCM, SCM * Strong knowledge of Oracle Integration Cloud (OIC), SOA Suite, and REST APIs
        Solution Architect - Oracle Fusion ERP - Contract Length: 12 Months (likely to extend) Location: Hybrid (Hertfordshire or Warwick) Day Rate: £1000 Inside IR35 - Start Date: ASAP - We're seeking an experienced Oracle Fusion ERP Solution Architect to lead the design, implementation, and optimisation of Oracle Fusion Cloud ERP solutions as part of a large scale transformation programme. You'll play a key role in ensuring scalable, secure, and high performing ERP platforms across Finance, Procurement, HCM, and SCM, while driving cloud first adoption and seamless integration with enterprise systems. Key Experience Required * 7+ years' experience in ERP architecture, with at least 3 years in Oracle Fusion Cloud ERP * Expertise in Oracle Fusion modules: Financials, Procurement, HCM, SCM * Strong knowledge of Oracle Integration Cloud (OIC), SOA Suite, and REST APIs
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        FEATURED
        Solution Architect - Oracle Fusion HCM - Contract Length: 12 Months (likely to extend) Location: Hybrid (Hertfordshire or Birmingham) Day Rate: £1000 Inside IR35 - Start Date: ASAP - We're seeking an experienced Solution Architect to lead the design, implementation, and optimisation of Oracle Fusion Cloud HCM solutions as part of a major transformation programme. You'll play a key role in delivering scalable, secure, and high-performing HCM platforms across Core HR, Payroll, Talent, and Workforce Management, while driving cloud adoption and seamless integration with enterprise systems. If you've worked on integration oracle systems in acquisition programmes then this will be the right project for you. Key Experience Required * 7+ years' experience in enterprise solution architecture, with at least 3 years in Oracle Fusion Cloud HCM
        Solution Architect - Oracle Fusion HCM - Contract Length: 12 Months (likely to extend) Location: Hybrid (Hertfordshire or Birmingham) Day Rate: £1000 Inside IR35 - Start Date: ASAP - We're seeking an experienced Solution Architect to lead the design, implementation, and optimisation of Oracle Fusion Cloud HCM solutions as part of a major transformation programme. You'll play a key role in delivering scalable, secure, and high-performing HCM platforms across Core HR, Payroll, Talent, and Workforce Management, while driving cloud adoption and seamless integration with enterprise systems. If you've worked on integration oracle systems in acquisition programmes then this will be the right project for you. Key Experience Required * 7+ years' experience in enterprise solution architecture, with at least 3 years in Oracle Fusion Cloud HCM
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        FEATURED
        You will lead the security of high-performance computing (HPC) environments and associated systems, leveraging Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, App & API Protector) to protect classified infrastructure. * Design and implement security strategies for HPC environments and defence systems, integrating Akamai Edge solutions for DDoS mitigation, WAF, and API protection. * Expertise in Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, EdgeWorkers) for DDoS, WAF, and API protection.
        You will lead the security of high-performance computing (HPC) environments and associated systems, leveraging Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, App & API Protector) to protect classified infrastructure. * Design and implement security strategies for HPC environments and defence systems, integrating Akamai Edge solutions for DDoS mitigation, WAF, and API protection. * Expertise in Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, EdgeWorkers) for DDoS, WAF, and API protection.
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        NEWFEATURED
        To complement the efficient networking architecture, you will help designing Infrastructure-as-a-Service virtual network orchestration API-driven services to support tenants workloads security and performance SLAs for BMaaS, VMaaS and Kubernetes. * Hands-on experience developing secure and performant API-driven services (gRPC, ReST with transport encryption and strong authentication)
        To complement the efficient networking architecture, you will help designing Infrastructure-as-a-Service virtual network orchestration API-driven services to support tenants workloads security and performance SLAs for BMaaS, VMaaS and Kubernetes. * Hands-on experience developing secure and performant API-driven services (gRPC, ReST with transport encryption and strong authentication)
        more
        NEW
        Code quality and API-First principles are at the heart of all our development. * Deliver high efficiency, high availability, concurrent and fault tolerant software systems using API-First principles. * An interest in setting strategy and direction, backed by real-work experience, ideally in an API-First setting. * Experience designing, building, and deploying scalable micro-services using API-First principles using at least one of REST/gRPC. * Strong understanding of RESTful API design principles and best practices. * Experience with API authentication and authorization mechanisms (e.g., OAuth, JWT). * Experience with API gateway technologies (e.g., Apigee, Kong) is beneficial.
        Code quality and API-First principles are at the heart of all our development. * Deliver high efficiency, high availability, concurrent and fault tolerant software systems using API-First principles. * An interest in setting strategy and direction, backed by real-work experience, ideally in an API-First setting. * Experience designing, building, and deploying scalable micro-services using API-First principles using at least one of REST/gRPC. * Strong understanding of RESTful API design principles and best practices. * Experience with API authentication and authorization mechanisms (e.g., OAuth, JWT). * Experience with API gateway technologies (e.g., Apigee, Kong) is beneficial.
        more
        NEW
        Performing automation and API testing when required. * API automation testing using JavaScript * Experience in API and integration testing
        Performing automation and API testing when required. * API automation testing using JavaScript * Experience in API and integration testing
        more
        NEW
        Extensive Salesforce development experience (including Apex triggers, classes, asynchronous Apex, API Integrations, Platform Events, LWCs and Sites)
        Extensive Salesforce development experience (including Apex triggers, classes, asynchronous Apex, API Integrations, Platform Events, LWCs and Sites)
        more
        NEW

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        Frequently Asked Questions

        How many permanent API jobs are there in Watford?
        There are 135 permanent API jobs within 20 miles of Watford available on CWJobs right now.

        What other similar jobs are there to permanent API jobs in Watford?
        As well as permanent API jobs in Watford, you can find permanent DevOps, Implementation, IT, amongst many others.