have the following skills or proven experience: API Development: Proven experience designing and building RESTful APIs and services at scale. Experience with authentication, authorization, and secure API communication (OAuth2, JWT, etc.). Familiarity with API gateways, microservice architecture, and asynchronous messaging patterns (e.g., queues, event buses). Programming Proficiency: Strong experience with C# and .NET frameworks. Solid understanding of data More ❯
have the following skills or proven experience: API Development: Proven experience designing and building RESTful APIs and services at scale. Experience with authentication, authorization, and secure API communication (OAuth2, JWT, etc.). Familiarity with API gateways, microservice architecture, and asynchronous messaging patterns (e.g., queues, event buses). Programming Proficiency: Strong experience with C# and .NET frameworks. Solid understanding of data More ❯
Greater London, England, United Kingdom Hybrid / WFH Options
Futuria
architectures, asynchronous processing, and tools like Celery or Kafka Familiarity with CI/CD pipelines, Docker, and DevOps workflows Experience designing or integrating authentication and authorisation systems (e.g., OAuth2, JWT) Success Metrics Deploy secure, scalable, and maintainable full-stack systems and LLM applications that deliver measurable business value Maintain low latency, high system uptime, and strong performance across APIs and More ❯
london, south east england, united kingdom Hybrid / WFH Options
Futuria
architectures, asynchronous processing, and tools like Celery or Kafka Familiarity with CI/CD pipelines, Docker, and DevOps workflows Experience designing or integrating authentication and authorisation systems (e.g., OAuth2, JWT) Success Metrics Deploy secure, scalable, and maintainable full-stack systems and LLM applications that deliver measurable business value Maintain low latency, high system uptime, and strong performance across APIs and More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Futuria
architectures, asynchronous processing, and tools like Celery or Kafka Familiarity with CI/CD pipelines, Docker, and DevOps workflows Experience designing or integrating authentication and authorisation systems (e.g., OAuth2, JWT) Success Metrics Deploy secure, scalable, and maintainable full-stack systems and LLM applications that deliver measurable business value Maintain low latency, high system uptime, and strong performance across APIs and More ❯
platform or any APIM platform and its components Ability to generate custom analytics reports for API consumption and errors Implementation of API security and access control (OAuth, API keys, JWT, etc.) Familiarity with API design patterns, best practices, and performance optimization Excellent collaboration and communication skills Randstad Technologies Ltd is a leading specialist recruitment business for the IT & Engineering industries. More ❯
platform or any APIM platform and its components Ability to generate custom analytics reports for API consumption and errors Implementation of API security and access control (OAuth, API keys, JWT, etc.) Familiarity with API design patterns, best practices, and performance optimization Excellent collaboration and communication skills Randstad Technologies Ltd is a leading specialist recruitment business for the IT & Engineering industries. More ❯
alerting tools. What We're Looking For 5+ years of AWS integration experience, including secure deployments on Lambda and EKS . Strong API design and security expertise (OpenAPI, OAuth2, JWT). Proven integration experience with SAP, Salesforce, Oracle . Proficiency in Flask, FastAPI , or similar frameworks in cloud-native environments. Experience with event-driven patterns and AWS messaging services. Solid More ❯
Compliance:o Implement and enforce security best practices across the platform, includingsecure coding, dependency management, and vulnerability scanning.o Ensure API security and access control using OAuth, API keys, JWT, and othermechanisms.o Monitor and remediate security vulnerabilities in third-party packages andlibraries.o Collaborate with security teams to align platform architecture withorganizational compliance standards. Platform Maintenance & Upgrades: o Regularly audit and More ❯
Familiarity with CI/CD pipelines (e.g., Jenkins, Azure DevOps) and version control (Git). Experience with CloudHub deployments and monitoring tools. Solid understanding of security patterns (OAuth 2.0, JWT, TLS). Excellent communication and stakeholder skills. Appropriate MuleSoft Developer certification. Architect certification would be desirable. Experience and knowledge of AWS as well as Jira and Confluence tools would be More ❯
bradford, yorkshire and the humber, united kingdom
Alscient
Familiarity with CI/CD pipelines (e.g., Jenkins, Azure DevOps) and version control (Git). Experience with CloudHub deployments and monitoring tools. Solid understanding of security patterns (OAuth 2.0, JWT, TLS). Excellent communication and stakeholder skills. Appropriate MuleSoft Developer certification. Architect certification would be desirable. Experience and knowledge of AWS as well as Jira and Confluence tools would be More ❯
for the following experience: 5+ years' AWS integration experience, including secure deployments on Lambda and Kubernetes (EKS). Expertise in API design and security using API Gateway, OpenAPI, OAuth2, JWT, and service policies. Strong integration background with platforms like SAP, Salesforce, and Oracle ERP. Proficiency in Flask, FastAPI, or similar frameworks, deployed in cloud-native environments. Experience with event-driven More ❯
Leamington Spa, Warwickshire, England, United Kingdom
Crimson
cross-functional teams to deliver cohesive, end-to-end solutions. Familiar with DevOps tools (Docker, Jenkins) and cloud platforms (AWS, GCP). Knowledgeable in application security, including OAuth2 and JWT authentication. Interested in leveraging AI and automation to improve back-end processes. Interested? Please submit your updated CV to at Crimson for immediate consideration. Not interested? Do you know someone More ❯
Leamington Spa, Warwickshire, Royal Leamington Spa, United Kingdom Hybrid / WFH Options
Crimson
cross-functional teams to deliver cohesive, end-to-end solutions. Familiar with DevOps tools (Docker, Jenkins) and cloud platforms (AWS, GCP). Knowledgeable in application security, including OAuth2 and JWT authentication. Interested in leveraging AI and automation to improve back-end processes. Interested? Please submit your updated CV to at Crimson for immediate consideration. Not interested? Do you know someone More ❯
with .NET development (C#, ASP.NET Core) • Strong experience with Entity Framework Core and PostgreSQL • Proficiency in RESTful API design and OpenAPI/Swagger documentation • Experience with authentication systems (OAuth2, JWT, Azure AD) • Knowledge of containerization (Docker) and Kubernetes/OpenShift • Experience with background job processing and scheduled tasks • Understanding of SOLID principles and clean architecture • Experience with unit testing (xUnit More ❯
Expertise in building React/Next.js front-end applications. Experience with serverless architectures and microservice patterns. Solid understanding of RESTful APIs, event-driven design, and authentication/authorization (Cognito, JWT, etc.). Familiarity with CI/CD pipelines (GitHub Actions, Code Pipeline, etc.). Strong focus on testing, code quality, and best practices. Our client offers – Flexible working hours and More ❯
and webhook design, scalability, and security. What We’re Looking For Strong hands-on experience with RESTful APIs and webhooks . Solid understanding of OAuth 2.0 , API Keys , and JWT authentication . Experience integrating platforms like Stripe , Salesforce , Adobe , or similar SaaS systems. Proficiency in Python , JavaScript , or Node.js for building and testing integrations. Familiarity with API testing tools (Postman More ❯
and webhook design, scalability, and security. What We’re Looking For Strong hands-on experience with RESTful APIs and webhooks . Solid understanding of OAuth 2.0 , API Keys , and JWT authentication . Experience integrating platforms like Stripe , Salesforce , Adobe , or similar SaaS systems. Proficiency in Python , JavaScript , or Node.js for building and testing integrations. Familiarity with API testing tools (Postman More ❯
City of London, London, United Kingdom Hybrid / WFH Options
ECS
Python, Node.js, and Docker Skilled in infrastructure-as-code (Terraform, Ansible) and CI/CD pipelines using Azure DevOps Strong grasp of distributed systems, API security (OAuth, API keys, JWT), and Apigee/APIM platforms Experienced in building enterprise applications, designing scalable APIs, and generating custom analytics SC Cleared (essential) Please note, due to internal capabilities it will be difficult More ❯
Manchester, England, United Kingdom Hybrid / WFH Options
Suits Me
also... Demonstrate strong experience of developing Node.js/TypeScript application services Demonstrate good knowledge of REST APIs, contract testing, and API versioning Understand fundamentals of authentication/authorisation (OAuth2, JWT) Be comfortable with event-driven and idempotent service design Have worked in a fintech or similar regulated financial environment Communicate clearly and work well in a hybrid, cross-functional environment More ❯
warrington, cheshire, north west england, united kingdom Hybrid / WFH Options
Suits Me
also... Demonstrate strong experience of developing Node.js/TypeScript application services Demonstrate good knowledge of REST APIs, contract testing, and API versioning Understand fundamentals of authentication/authorisation (OAuth2, JWT) Be comfortable with event-driven and idempotent service design Have worked in a fintech or similar regulated financial environment Communicate clearly and work well in a hybrid, cross-functional environment More ❯
bolton, greater manchester, north west england, united kingdom Hybrid / WFH Options
Suits Me
also... Demonstrate strong experience of developing Node.js/TypeScript application services Demonstrate good knowledge of REST APIs, contract testing, and API versioning Understand fundamentals of authentication/authorisation (OAuth2, JWT) Be comfortable with event-driven and idempotent service design Have worked in a fintech or similar regulated financial environment Communicate clearly and work well in a hybrid, cross-functional environment More ❯
understanding of the DOM, component design, CSS, and state management. Solid performance and security knowledge: profiling, memoization, code-splitting, tree-shaking, bundle analysis, Core Web Vitals, OAuth2/OIDC, JWT handling, CSRF/XSS mitigation, CSP/SRI, dependency hygiene. Proven experience interacting with and co-designing production-grade RESTful APIs ideally with an API-first approach. Strong knowledge of More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Safe Intelligence
understanding of the DOM, component design, CSS, and state management. Solid performance and security knowledge: profiling, memoization, code-splitting, tree-shaking, bundle analysis, Core Web Vitals, OAuth2/OIDC, JWT handling, CSRF/XSS mitigation, CSP/SRI, dependency hygiene. Proven experience interacting with and co-designing production-grade RESTful APIs ideally with an API-first approach. Strong knowledge of More ❯
london, south east england, united kingdom Hybrid / WFH Options
Safe Intelligence
understanding of the DOM, component design, CSS, and state management. Solid performance and security knowledge: profiling, memoization, code-splitting, tree-shaking, bundle analysis, Core Web Vitals, OAuth2/OIDC, JWT handling, CSRF/XSS mitigation, CSP/SRI, dependency hygiene. Proven experience interacting with and co-designing production-grade RESTful APIs ideally with an API-first approach. Strong knowledge of More ❯