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 ❯
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 ❯
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, West Midlands, 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 ❯
error handling. Deep knowledge of API versioning, backward compatibility, and lifecycle management. Familiarity with OpenAPI/Swagger and modern documentation tooling. Strong grasp of API security practices, including OAuth2, JWT, scopes, and rate limiting. Solid experience with CI/CD pipelines, Git workflows, and infrastructure-as-code approaches. Deep testing experience, including unit, integration, contract, and E2E testing. Experience with More ❯
Experience with code repositories, bug tracking tools, and wikis (e.g., GitLab, Endevor, JIRA, Confluence). Knowledge of security integration patterns such as Basic Authentication, Client Authentication (mTLS), and OAuth (JWT). Experience with DevOps and Agile methodologies, including CI/CD practices and Jenkins. Desirable Skills/Knowledge/Experience: Java skill set. Strong foundation in Java, including OOP and 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 ❯
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 ❯
slough, 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 ❯
london (city of 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 ❯
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 ❯
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 ❯
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 ❯
frameworks/standards, technologies and design patterns such as API Gateways, REST, Message Brokers and token-based security. Expertise in Auth & Auth principles & tools such as SAML, OpenID, OAuth, JWT, OKTA, AWS Cognito, Hashicorp Vault Designing solution and leading digital delivery teams to using Agile and DevOps methodologies to ensure automation and delivery pipelines flowing from development, testing, infrastructure as More ❯
frameworks/standards, technologies, and design patterns such as API Gateways, REST, Message Brokers and token-based security. Exposure to Auth & Auth principles & tools such as SAML, OpenID, OAuth, JWT, OKTA, AWS Cognito, Hashicorp Vault A demonstrable record of designing solutions to key non-functional requirements including cyber/security policies, resilience, logging, errors and scalability abiding SLA Experience in 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 ❯