5 of 5 Contract API Development Jobs in London

building and enhancing modern applications, APIs, and cloud-native services, whilst mentoring developers and promoting engineering best practice. Key Responsibilities Lead the design and development of robust, scalable software solutions Drive technical decision-making and provide guidance to development teams Develop and maintain RESTful APIs and microservices Build … quality, automated testing, and CI/CD best practices Support deployment, containerisation, and platform optimisation activities Essential Skills & Experience Strong commercial experience with Node.js API development using REST and OpenAPI Web application development using HAPI Database expertise across PostgreSQL , MongoDB , and Redis Unit testing with Jest ...

Security Clearance (SC) is essential for this position. We are seeking a Mid Backend Engineer to join a delivery pod, contributing to the design, development and maintenance of scalable, resilient backend systems. The role will specialise in event-driven architecture and CQRS-based systems, working within a collaborative engineering … environment to deliver robust, distributed solutions. The successful candidate will have strong backend development experience, a solid understanding of architectural patterns and practical experience building event-driven applications. Key Responsibilities Design, develop and maintain backend services and applications within a pod-based delivery model. Implement and support systems built ...

Security Clearance (SC) is essential for this position. We are seeking a Mid Backend Engineer to join a delivery pod, contributing to the design, development and maintenance of scalable, resilient Back End systems. The role will specialise in event-driven architecture and CQRS-based systems, working within a collaborative … engineering environment to deliver robust, distributed solutions. The successful candidate will have strong Back End development experience, a solid understanding of architectural patterns and practical experience building event-driven applications. Key Responsibilities Design, develop and maintain Back End services and applications within a pod-based delivery model. Implement ...

GenAI - Inside IR35 - £650/day RecOps is partnered with a leading consultancy looking for an experienced MLOps/AI Engineer to support the development and deployment of production AI applications for one of their end clients. This is a hands-on engineering role combining Python, Generative … Skills Required: Strong Python software engineering experience Hands-on experience with LLMs, RAG and Generative AI applications Azure cloud engineering and deployment Backend API development, ideally FastAPI Docker and containerisation CI/CD pipelines and automated testing Infrastructure as Code, ideally Terraform Production monitoring, troubleshooting and support Desirable ...

Back End services Maintain high code quality through testing, reviews and best practices Mentor junior developers where required Required Skills Strong Core Python development experience Experience with enterprise trading and risk platforms (eg Quartz, SecDB, Athena, Kanon, Beacon or similar) Strong SQL and large-scale data handling expertise Pandas … NumPy for data processing and analytics REST API development using Flask, FastAPI or Django Strong understanding of performance optimisation and scalable systems Unix/Linux and Shell Scripting experience Domain Experience Investment Banking or Capital Markets background Experience across Market Risk, CCR, PnL, Trade Lifecycle and Reconciliations Knowledge ...