7 of 7 Permanent API Development Jobs in Central London

Senior Full Stack Engineer (Golang/Typescript/Kubernetes)

Hiring Organisation
Safe Intelligence
Location
City of London, London, United Kingdom
experience of different types of architectures and understanding of the tradeoffs between them. In this role, you'll be a senior contributor to the development and operation of our cutting-edge cloud-based platform. You should have a passion for both science and engineering, a proven ability to deliver … contribute to our mission! Responsibilities : As a Safe Intelligence Full Stack Software Engineer, you will: Engineering of Golang-based backend systems , focusing on API development and integration. Engineering on our TypeScript-based frontend systems , primarily utilizing React to craft intuitive and highly functional user interfaces. Productize and enhance ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
Central London, London, United Kingdom
Employment Type
Permanent
process flow diagrams, conducting time-motion studies, identifying bottlenecks and inefficiencies, and redesigning processes to be machine-readable and automation-ready using methodologies. Python Development - Strong proficiency in Python programming including object-oriented design, asynchronous programming, error handling, and writing clean, maintainable code. Experience with key libraries including Pandas … business process applications, configuring workflows, implementing business rules, managing records, and integrating Appian with external systems via REST APIs, web services, and connected systems. API Development & Integration - Proficient in designing and building RESTful APIs using FastAPI, Flask, or Django REST Framework for exposing AI models and automation services. ...

C#.NET Developer – Financial Systems Developer

Hiring Organisation
Centre People Appointments
Location
City of London, London, United Kingdom
candidates have led enhancements, maintenance, or improvements of existing systems. This position is especially suitable for those with hands-on experience in financial system development or financial IT consulting. Employment Type: Full-time, Permanent Salary: £50k-£65k depending on experience Start Date: Negotiable Working Hours: Monday to Friday … Server • Propose and implement improvements or new functionalities for existing systems • Coordinate with internal and external stakeholders Financial Systems Developer Ideal Candidate: • Development experience with C#.NET (3+ years preferred) • Experience with SQL and database operations • Knowledge of financial systems or financial operations (e.g., payments, settlements, reporting) is a plus ...

Full Stack Engineer (Web & Data)

Hiring Organisation
Templeton & Partners - Innovative & Inclusive Hiring Solutions
Location
City of London, London, United Kingdom
provider is looking for a Full Stack Engineer (Web & Data) to join its growing Automation & Analytics team in London. This hybrid role blends web development with data engineering, offering exposure to everything from dynamic front‐end interfaces and API development to cloud‐based data pipelines and analytics … platforms. If you love combining creativity in web development with the logic and scalability of data engineering, this is your opportunity to grow in a cutting‐edge environment. What You’ll Do Design, develop, and maintain end‐to‐end web applications —from intuitive front‐end interfaces to robust back ...

Frontend Developer

Hiring Organisation
Delta Humans
Location
City of London, London, United Kingdom
production-quality experiences. A product-oriented mindset—focused on usability, business value, and the “why” behind features. Solid Fullstack fundamentals with Node.js or Python , API development, and debugging across the stack. Understanding of testing best practices, CI/CD workflows, and cloud-native development. Nice to Have Experience … clean, intuitive UX. Experience with Next.js , monorepos, or modular architectures. Familiarity with any part of the company’s tech ecosystem. Tech Environment Agent & AI Development Google ADK, Mastra, MCP (Model Context Protocol), Agent-to-Agent systems Frontend TypeScript, React, Redux Next.js Shadcn, Material UI, Tailwind CSS Backend & APIs Python ...

Senior Software Engineer (Full-stack)

Hiring Organisation
Primis
Location
City of London, London, United Kingdom
Collaboration style - You work well with others but are equally effective independently Nice to Have: Experience with modern frontend frameworks (React, etc) Background in API development or distributed systems For more information, please apply! *Please note that this role will not be able to provide sponsorship support. Research ...

Mobile Engineer (Android)

Hiring Organisation
Captur
Location
City of London, London, United Kingdom
pressure; make frame-time and latency predictable across device classes Define and monitor SDK health metrics at scale (crashes, ANRs, error rates, perf envelopes) API design and developer experience Design clear, stable, Kotlin-first public APIs (versioned, well-documented, testable) Implement best practices for networking, auth and IO; make … release at the end of Q2 Champion performance budgets and device-class targets during planning Role boundaries SDK Engineer owns: code quality, API design, perf, stability, instrumentation, and technical notes for releases Solutions Engineer owns: release cadence, artefact publishing, changelogs, customer comms and debug sessions What Success Looks Like ...