exposure to both backend and frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise in modern web development with React, Node.js, MongoDB, and SQL (Postgres, MySQL). Strong understanding of Git/GitHub, CI/CD workflows, code branching strategies, and code ownership. Prior work in a fintech, hedge fund, or proprietary More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Haystack
such as React.js, TypeScript, and Tailwind CSS. Support backend development using Python (Django/FastAPI) and Node.js (Express). Assist with database development and maintenance (PostgreSQL, MySQL, and optionally MongoDB/DynamoDB). Contribute to cloud infrastructure deployment and maintenance (AWS or Azure). Assist with containerisation (Docker/Kubernetes). Support implementation of authentication systems (OAuth 2.0, Auth0, AWS More ❯
Excellent communication, collaboration, and technical documentation skills. Preferred Qualifications: • Exposure to mobile application development lifecycle, backend-for-frontend (BFF) patterns, and mobile performance optimization. • Experience with NoSQL databases (e.g., MongoDB, Cassandra). • Familiarity with cloud platforms (AWS, GCP, Azure) and container orchestration (Kubernetes). • Knowledge of event-driven or reactive architectures, messaging systems (Kafka, RabbitMQ), or domain-driven design (DDD More ❯
City of London, Greater London, UK Hybrid / WFH Options
Russell Tobin
analytics squad. We operate on a micro-front-end architecture, and encourage our colleagues to use the best technology for the job - whether it's TypeScript, React, AWS, Postgres, MongoDB, Python, or anything else well-suited. We’re building tools that cut through complexity and perform under heavy usage. If you love tackling tough challenges with smart, passionate teammates, this More ❯
City of London, England, United Kingdom Hybrid / WFH Options
ACLED
2.0, JWT, SAML) and security standards. Experience with CI/CD, GitHub workflows, automated deployment. Proficiency in Docker, cloud services (AWS/DigitalOcean), container orchestration. Database experience (PostgreSQL, MySQL, MongoDB). Experience supporting BCP and DR activities. Knowledge of web and API security best practices. Fluency in English, problem-solving skills, attention to detail, ability to work remotely. Desirable: Cloud More ❯
City of London, London, United Kingdom Hybrid / WFH Options
developrec
CD pipelines using tools like GitHub Actions, Jenkins, or GitLab CI. Strong communication skills with the ability to produce clear technical documentation. Preferred Qualifications: Familiarity with NoSQL databases (e.g., MongoDB, Cassandra). Experience with cloud platforms such as AWS, GCP, or Azure, and container orchestration using Kubernetes. Knowledge of event-driven architecture, messaging systems like Kafka or RabbitMQ, and domain More ❯
our team and contribute to the success driving innovation and excellence in our network infrastructure. Essential Technical Skills: Front-end: Angular, TypeScript Back-end: Java, Python, Spring Boot Database: MongoDB, PL/SQL,NOSQL API Development: RESTful APIs Version Control: Git CI/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus, Grafana, ELK Stack) Cloud Platforms More ❯
complex systems. Well versed on cloud computing, automated tests, microservices architecture, continuous delivery/integration and DevOps tools. Experience with relational (MySQL, SQL Server, Oracle) and non-relational (Elasticsearch, MongoDB, Cassandra) data stores. Strong professional experience with software development frameworks (Node.js, AngularJS, Spring, Guice). Expert experience building mobile, responsive/adaptive applications. Have first-hand understanding of Agile development More ❯
experience building full stack web applications with modern JavaScript/TypeScript. Strong backend expertise in Node.js/NestJS or equivalent frameworks. Proficiency in both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, DynamoDB). Proven frontend experience developing robust SPAs, ideally with frameworks like React. Deep understanding of engineering best practices (e.g., separation of concerns, API design, testability, CI/CD). More ❯
environment Key Skills and Experience 4–7 years' professional experience in Java development Solid understanding of Java frameworks (Spring Boot, Hibernate) Practical knowledge of database systems (e.g., PostgreSQL, MySQL, MongoDB) Strong grasp of software engineering fundamentals and clean coding practices Basic exposure to or willingness to learn Node.js and JavaScript Understanding of microservices architecture and API design Experience working on More ❯
City of London, England, United Kingdom Hybrid / WFH Options
CFP Energy (UK) Ltd
backend development. Expertise in React for building modern and responsive user interfaces. Solid understanding of web development concepts, including RESTful APIs and asynchronous programming. Experience with database systems (MySql, MongoDB, PostgreSQL, etc.). Knowledge of front-end build tools and package managers (Webpack, npm, etc.). Excellent problem-solving skills and the ability to work both independently and collaboratively in More ❯
scale/multi-tenancy applications Proficiency and commercial experience developing solutions in Python using Fast API and/or Django Experience with relational (MySQL, PostgreSQL) and non-relational (Elasticsearch, MongoDB, DocumentDB) data stores. Have first-hand understanding of Agile development methodologies. Exposure to cloud platforms like AWS and containerization technologies like Docker. Experience in implementing best security practices (OWASP, SAMM More ❯
are looking for ways to implement Machine Learning and improving DevOps in their process to further add value to their Authors. Their overall technology stack includes: Django, Flask, React, MongoDB, PostgreSQL, SQLserver, Docker and is currently being hosted in Azure. They've recently introduced Terraform and will also be moving their containerization to Kubernetes. On the frontend, they're using More ❯
state management libraries like Redux or Context API. Proven experience with RESTful API development and integrating third-party services. Solid understanding of SQL and NoSQL databases (e.g., SQL Server, MongoDB). Familiarity with front-end build tools, version control (Git), and CI/CD pipelines. Strong understanding of responsive design principles and cross-browser compatibility. Excellent problem-solving skills and More ❯
ensure production-grade deployment. Collaborate with platform teams to ensure scalability, resilience, and observability of data pipelines. Write and optimize complex SQL queries on relational (Redshift, PostgreSQL) and NoSQL (MongoDB) databases. Work with ELK stack (Elasticsearch, Logstash, Kibana) for search, logging, and real-time analytics. Support Lakehouse architectures and hybrid data storage models for unified access and processing. Data Governance More ❯
patterns - Developmentexperience in Microsoft .Net Framework and experience inFront-end JavaScript frameworks like Angular & React - Traditional Relational Database technologies like Oracle, MS SQL Server and - No SQL Databases like MongoDB or DynamoDB - SOA & Microservices architecture implementation using REST APIs, queue-based messaging patterns, exposure toMulesoft/Kong is a plus - On-premise/cloud-basedinfrastructures, SDLC pipelines, and deployments/ More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Noir
should have a skill set that encompasses: .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. Our client offers training in: .NET 9, JavaScript, React, Angular 19, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. This is a truly amazing opportunity to work for a prestigious banking More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Noir
MVC, C# and Azure SQL. Knowledge of software development methodologies is of interest (Agile, Scrum). My client will provide training in: .NET 9, JavaScript, React, Angular 19, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. This is a truly exciting project, one which if you are given More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Noir
web application development (.NET Core/ASP.NET MVC, C#) or windows/desktop development (C#.NET). My client can provide training in: .NET 9, JavaScript, React, Angular 19, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, WPF, MVVM, Prism, continuous integration, dependency injection, RESTful, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. This is a fantastic More ❯
City of London, London, United Kingdom Hybrid / WFH Options
RemoteStar
financial markets. What you will need for the role: Java & Spring/Spring Boot : 3- 10 years of extensive experience in building and deploying back-end services. MongoDB & JPA: Proficient in database design, management, and optimization. Kafka: Skilled in implementing real-time data pipelines and messaging systems. Splunk: Expertise in monitoring, logging, and troubleshooting application performance. GitLab: Strong knowledge of More ❯
to be exposed to the following stack Infrastructure: Amazon Web Services; Kubernetes; GitOps (ArgoCD), Github Actions Backend: Language: Python; Web Frameworks: Python frameworks including Django, Fast API; Databases: PostgreSQL, MongoDB, ElasticSearch, and Redis among others; Other: Celery, RabbitMQ, among others. Frontend: Javascript & Vue.JS Apply on our Careers Page If you are a fit for this role and are excited to More ❯
other developers and lead by example. What You’ll Bring... Deep understanding of Node.js, JavaScript, .Net Core Good Knowledge of React, Vue, Vuetify and AngularJS Experience with Microsoft SQLServer, MongoDB, and Redis Experience working in a CI/CD environment Experience developing software in a data-intensive application Experience with containerization technology and orchestration tools such as Docker and Kubernetes More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Noir
.NET Developer (Tech stack: .NET Developer, .NET 9, C#, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) We have several fantastic new roles for .NET Developer More ❯
