Develop and document secure web applications and microservices within an Agile AWS development team. Responsibilities include low-level design, security requirement assessment, code reviews, API integration, authentication and authorization using Keycloak and JOSE standards, database integration, accessible front-end development, governance documentation, and providing technical input to stakeholders.
Job Description
Developer
London
SC Cleared
12 month initial contract
Developer required to work in a development team to identify needs, assess security requirements, design/develop and document the required components, provide in-depth technology input to other technology stakeholders, and conduct a code review periodically, and be responsible for low level design.
Developer required to work in a development team to identify needs, assess security requirements, design/develop and document the required components, provide in-depth technology input to other technology stakeholders, and conduct a code review periodically, and be responsible for low level design.
- Experience in full software development life cycle of web application and microservices
- Have demonstrable experience in development of complex cloud-based applications using the following technologies: Java, Javascript (Node.js), Postgres, Kibana, and Grafana.
- Have demonstrable experience of consuming REST and SOAP APIs securely.
- Have demonstrable experience working on projects using open source technology within AWS cloud hosted
- Evidence of experience of working with AWS Cloud PaaS services
- Have demonstrable experience working with GIT version control systems in frequent software release cycles
- Have demonstrable experience of implementating user authentication and authorisation in a web application utilising Keycloak.
- Have demonstrable hands-on experience of JWT, JWS, JWE and JOSE.
- Have demonstrable experience of documenting low level design and ability to work in a established design and governance process.
- Evidence of experience of working within Agile development environments
- Evidence of experience of interacting with both SQL and no-SQL data stores
- Evidence of experience of working at significant scale
- Have demonstrable experience of front-end JavaScript, HTML and CSS for building accessible user interfaces aligned to GDS and GoV UK standards.
Similar Jobs
Artificial Intelligence • Cloud • HR Tech • Information Technology • Productivity • Software • Automation
Build and deploy production-grade, LLM-enabled applications for strategic customers. Own backend services, data orchestration, frontend integrations, APIs, vector databases, LLM pipelines, and reusable AI tooling. Work directly with customers in agile field deployments, integrate legacy systems, improve developer experience, and influence platform strategy. Deliver secure, scalable solutions while creating libraries, SDKs, prompts, scaffolds, and documentation that accelerate future enterprise AI implementations.
Top Skills:
AngularAWSAzureCi/CdContainersDistributed SystemsGCPGraphQLInfrastructure As CodeJavaLangchainLlmsMonitoringNode.jsPrompt ChainingPythonReactRestSemantic KernelVector DatabasesVector Search
Fintech • Mobile • Payments • Software • Financial Services
Build governance and assurance foundations for Wise’s Risk Assessment platform. Responsibilities include data quality monitoring, data contracts, lineage tracking, continuous control validation, drift detection, audit trails, explainability tooling, and scalable integration with the Risk API. The role requires backend engineering expertise for high-throughput data-intensive systems, distributed-systems thinking, and cross-functional collaboration with Product and Financial Crime teams.
Top Skills:
Data Lineage TrackingData Quality FrameworksKafkaNosql DatabasesPipeline OrchestrationSQL
Fintech • Mobile • Payments • Software • Financial Services
Own the technical roadmap and delivery of large-scale backend projects for Wise’s global KYC and onboarding systems. Design scalable microservices, clean APIs, asynchronous integrations, and risk mitigation systems while improving reliability, security, performance, and compliance. Lead cross-team initiatives, make data-driven technical decisions, address technical debt, mentor engineers, and build maintainable systems using relational and non-relational databases.
Top Skills:
Artificial IntelligenceKafkaMachine LearningMicroservicesNon-Relational DatabasesRabbitMQRelational Databases
What you need to know about the London Tech Scene
London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.
