12 of 12 Permanent JWT Jobs in London

unit testing frameworks (JUnit, Mockito) . Prior experience integrating with payment hubs (VolPay, Finastra, FIS, or Temenos) preferred. Understanding of security principles , OAuth2/JWT , and data encryption in financial applications. Strong problem-solving, analytical, and communication skills, with ability to work in an agile, fast-paced environment. ...

Express.js, or FastAPI . Database Mastery – Strong SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis) expertise. API Development & Security – Experience in building RESTful & GraphQL APIs , JWT authentication, OAuth, and cryptographic security. Scalability & Optimization Skills – Ability to optimize database queries, caching strategies, and event-driven architectures (Kafka, RabbitMQ) . Cloud & DevOps Experience ...

Bonus points for: Go or C# backend experience Microservices/DevOps/CI/CD exposure Terraform/infrastructure as code Auth systems (OAuth, JWT, SSO) If you’re interested (or know someone who might be), drop me a message. ...

Bonus points for: Go or C# backend experience Microservices/DevOps/CI/CD exposure Terraform/infrastructure as code Auth systems (OAuth, JWT, SSO) If you’re interested (or know someone who might be), drop me a message. ...

What They're Looking For Essential: Strong experience designing and delivering AWS-based integration solutions Expertise in API design and security (API Gateway, OAuth2, JWT, OpenAPI) Experience with event-driven architectures (SQS, SNS, Step Functions) Strong understanding of cloud-native development frameworks (e.g. Flask, FastAPI) Experience with Kubernetes ...

tuning and complex queries. Experience with background job processing using Sidekiq and Redis. Solid understanding of RESTful API design, JSON serialization, and authentication (e.g., JWT, SSO). Hands-on experience with AWS services and containerised deployments (Docker). Experience troubleshooting and supporting production systems. Comfortable working within and improving existing ...

experience as an AWS Solution Architect (Integration Specialist) with Lambda and Kubernetes (EKS) Strong knowledge of API design and security (API Gateway, OpenAPI, OAuth2, JWT) Experience with cloud-native frameworks such as Flask or FastAPI Solid understanding of Kubernetes security, IAM, encryption, and CI/CD tooling Exposure to enterprise ...

Backend: Python REST APIs Data: MySQL, PostgreSQL, Redis Cloud & DevOps: AWS, Docker, CI/CD, Kubernetes (nice to have) Architecture: API design, OAuth/JWT authentication, queues, webhooks, payment integrations Previous experience in Financial Services What We’re Looking For: Strong system design and API architecture skills Experience building high ...

/NoSQL), enterprise systems, and cloud platforms (e.g. AWS, Azure). Deep understanding and hands-on experience implementing security protocols such as OAuth 2.0, JWT, and SSL/TLS. Proven experience leading unit testing practices using MUnit and contributing to mature CI/CD pipelines. MuleSoft Certified Developer Level ...

background processing via Sidekiq and Redis. You should be highly proficient in building RESTful APIs, managing JSON serialisation, and implementing secure authentication methods like JWT or SSO. Beyond coding, you will possess knowledge of Docker and AWS, alongside the communication skills required to translate complex technical risks into clear operational ...

core principles Experience with Redux and RTK (RTKQuery also a bonus) Familiarity with RESTful APIs Knowledge of modern authorization mechanisms, such as JSON Web Token Familiarity with modern front-end build pipelines and tools (Github actions a bonus) Experience with common front-end development tools such as Babel, Webpack ...

real-time, dynamic user experiences Creating responsive, accessible UI components using modern React patterns (hooks, context, server components) Implementing secure authentication and authorisation using JWT and OAuth, including role-based access control Optimising application performance, improving page load times through code-splitting, caching, and backend tuning Building scalable data pipelines … Next.js, TypeScript Backend: Node.js, Express APIs: REST, GraphQL Data: PostgreSQL, Redis Cloud/Infra: AWS (Lambda, S3), Vercel, Docker AI: Claude (Anthropic API) Auth: JWT, OAuth What we’re looking for Strong experience building production-grade full-stack applications Solid knowledge of React/Next.js and Node.js ecosystems Experience working ...