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 trading firm environment. More ❯
City of London, Greater London, UK Hybrid / WFH Options
Russell Tobin
and 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 More ❯
City of London, England, United Kingdom Hybrid / WFH Options
ACLED
protocols (OAuth 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. More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Haystack
interface development using technologies 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 More ❯
TypeScript, ReactJS, and Next.JS. Solid experience in building RESTful APIs Leadership: Proven track record of leading development teams and managing large-scale projects. Database Expertise: In-depth experience with PostgreSQL/SQL, including design of complex schemas, writing queries and performance optimisation. Security & Performance: Deep understanding of application security best practices, performance tuning, and scalable architecture. Problem-Solving: Ability to More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Haystack
Cloud & Infrastructure Deploy and manage applications on cloud platforms like AWS or GCP. Contribute to CI/CD processes and containerization (e.g., Docker). Databases Develop and optimize SQL (PostgreSQL, MySQL) and NoSQL databases. Ensure data quality and performance. AI Tool Integration Use AI tools to streamline development and boost productivity. Share best practices for AI tool adoption across the … experience. Strong full-stack development skills, particularly in Node.js, TypeScript, and React. Comfortable building and consuming REST APIs; experience with GraphQL is a plus. Experience with both relational (e.g., PostgreSQL, MySQL) and NoSQL databases. Familiar with cloud infrastructure (AWS or GCP), CI/CD, and Git. Bonus Points Experience with frontend state management libraries (e.g., Zustand, Redux). Background in More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Reed.ai
or technical lead role. Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms in a production environment. Strong understanding and More ❯
design patterns. Understanding of backend technologies, including Node.js, Express, or similar frameworks. 5+ years preferred. Experience with RESTful API design and development. Familiarity with database management systems such as PostgreSQL, MySQL, etc. Working with Manatal This role is based at our Bangkok office in the heart of the city center As a team of diverse cultures and nationalities, English language … expect 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 More ❯
preferred – EC2, Lambda, RDS, S3) Strong front-end skills in ASP.NET, PHP, Flutter/Dart Backend experience with Node.js or similar server-side languages Familiarity with MSSQL, MySQL, or PostgreSQL Hands-on experience in DevOps, Docker, Git, CI/CD practices A strategic mindset with problem-solving and analytical thinking Excellent communication and collaboration skills More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Talent
RESTful, GraphQL). Proficiency in Node.js for specific backend services and tooling. Solid understanding of JavaScript for front-end integration and broader development needs. Experience with relational databases (e.g., PostgreSQL, MySQL). Familiarity with version control systems (e.g., Git). Understanding of agile development methodologies. Excellent problem-solving skills and attention to detail. Strong communication and interpersonal skills. SC Clearance More ❯
City of London, London, United Kingdom Hybrid / WFH Options
James Adams
in serverless AWS environments (Lambda, Step Functions, API Gateway, ECS) Experience designing and developing microservices with clean domain boundaries Good working knowledge of SQL and cloud databases (Aurora/Postgres, DynamoDB, Snowflake etc.) Familiarity with IaC tooling such as AWS CDK, CloudFormation or Terraform Experience working in Agile/Kanban teams with strong TDD principles CI/CD skills with More ❯
backend services are optimized for mobile/web delivery. • Experience working in banking or financial services domain, with understanding of regulatory and security considerations. • Proficiency in SQL and RDBMS (PostgreSQL, MySQL, Oracle), and familiarity with CI/CD and DevOps tooling (GitHub Actions, Jenkins, GitLab CI). • Excellent communication, collaboration, and technical documentation skills. Preferred Qualifications: • Exposure to mobile application More ❯
City of London, England, United Kingdom Hybrid / WFH Options
CFP Energy (UK) Ltd
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 a More ❯
user interfaces. Experience developing world-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 More ❯
City of London, London, United Kingdom Hybrid / WFH Options
TurinTech AI
developer to join a project focusedon building and scaling a modern, cloud-based platform for media processing and related services. The core backend stack is Java with Spring Boot, PostgreSQL, Redis, AWS, and RabbitMQ — but we’re open to candidates with equivalent experience in similar technologies. Tech Stack (actual or equivalent experience welcomed): Languages & Frameworks: Java with Spring Boot 3.x … REST APIs, gRPC, Security, JPA) Alternatively: Java EE, or Scala Databases: PostgreSQL or any relational DB (e.g., MySQL, Oracle) Messaging/Caching: RabbitMQ or similar (Kafka, ActiveMQ) Redis or similar caching systems Cloud & DevOps: AWS (S3, ECS, RDS) Docker Linux/Ubuntu experience Tools & Libraries: Git Flyway for DB migrations MapStruct (or similar mapping frameworks) TUS protocol (for resumable file More ❯
structured, agile 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 More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Adalta
the functional and non-functional requirements. Coordinate deployments with Release Manager and monitor for successful integration. Key Skills : Python - Django - React - Docker - Microservices - Kubernetes - Rabbit MQ - Apache Kafka - SQL - PostgreSQL - REST API - AWS - Performance Tuning. Apply directly for consideration and if chosen for the shortlist, a member of the team will be in touch to discuss. More ❯
Implement backend services and APIs in Python Participate in code reviews, testing, and deployment processes Learning a variety of modern technology frameworks and paradigms, including but not limited to Postgres, Docker, AWS, CICD, Redis. Required Skills & Qualifications 1 - 4 years of professional software and web development experience from in a front-office facing role within finance Strong programming skills with More ❯
City of London, London, United Kingdom Hybrid / WFH Options
developrec
Auth0. Proven collaboration with mobile development teams to support seamless integration. Prior experience in banking or financial services with awareness of compliance and security standards. Proficiency with SQL databases (PostgreSQL, MySQL, Oracle) and CI/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 More ❯
5+ years of professional 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 More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Signify Technology
Developer Location: London/Hybrid Job Type: Permanent Job Summary: My client are looking for a skilled and experienced Python Developer with a strong background in Django, SQL/PostgreSQL, and hands-on experience in the FinTech industry. The ideal candidate will play a key role in developing and maintaining robust backend systems that support financial services and products. You … scalability Work closely with product, design, and DevOps teams to deliver new features and improve existing systems Write clean, well-documented, and testable code Manage and optimise SQL/PostgreSQL queries, data models, and migrations Ensure high standards of data security, compliance, and performance in financial applications Troubleshoot and debug production issues Participate in code reviews, sprint planning, and technical … discussions Requirements: 4+ years of professional experience in Python development Strong expertise in Django framework Solid experience with SQL and/or PostgreSQL, including performance tuning and complex queries Prior experience in the FinTech industry is required Familiarity with RESTful API design and integration Understanding of data privacy, security standards, and regulatory compliance relevant to FinTech Experience with version control More ❯
particularly in the automotive and mobility sectors. Responsibilities: Designing and developing backend services and REST APIs using Kotlin and Java Building and integrating front-end interfaces using React.js, TypeScript & PostgreSQL Creating and maintaining AWS Lambda functions and infrastructure using Terraform Collaborating closely with product, design, and domain experts in a fast-moving, agile environment Playing a key role in shaping … architecture and tech strategy as the platform scales Qualifications: 6+ years' experience with Kotlin/Java, React.js, and TypeScript A solid grasp of SQL and practical experience with PostgreSQL Comfortable working with infrastructure-as-code and DevOps practices in AWS Experience working in agile teams with strong CI/CD and testing culture Strong communication skills – you're able to More ❯
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 Typescript … and working with relational databases. Knowledge of git and branch management. Excellent written and spoken communication skills. Fun to work with, great teamwork and collaboration skills. Desirable (not essential!): PostgreSQL Technical Writing TypeScript and React DevOps (particularly managed infrastructure on Azure, CI/CD, IaaS) This role is looking to have someone based out of their London office for two More ❯
City of London, London, United Kingdom Hybrid / WFH Options
TreasurySpring
office in Mayfair, London. Backend systems orchestrate integrations, order aggregation and investments through our proprietary workflow engine using a Scheme-based notation, built in Python3 and mypy on a PostgreSQL store. Frontend includes our clean, simple portal for client order capture and reporting, currently built in TypeScript and server-side in Python3. Job requirements What we’re looking for: Requirements … STEM Degree Very strong experience with Python Experience with Fullstack Development – using JavaScript & React Experience with PostgreSQL/other SQL Databases Desirable skills: Experience with Flask or similar framework Experience with Docker Experience with Cloud (Ideally AWS) Experience in finance What you’ll do: Responsibilities Designing and architect complex systems and applications. Understanding technical requirements, proposing solutions, and designing software More ❯