12 of 12 Remote/Hybrid API Development Jobs in London

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 Risk Python Developer

Hiring Organisation
Hays
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£875.0 - £900.0 per day + Up to £900pd Umbrella
currently working with a London-based financial services client who are actively seeking a senior Python developer to work on the development of a business critical application within the risk space. What you'll need to succeed : Extensive Python application development experience within financial services - must have. Strong … API development experience. Strong experience with Django or similar. Javascript experience - nice to have. Strong risk knowledge, and a good mathematical background. Extensive experience working with and analysing large quantities of data. Strong SQL experience. What you'll get in return: Up to £900pd umbrella. London-based hybrid ...

Contract Python Developer - SC Cleared

Hiring Organisation
Searchability NS&D
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £600 per day
services. Responsibilities Build and maintain backend services and APIs using Python Contribute to the design and implementation of MCP servers Develop clean, well-structured API contracts and schemas Ensure services are robust, secure, observable, and scalable Collaborate closely with other engineers on system design and integration Support deployment … operation of services in cloud environments Required Experience Strong Python development experience Proven background in backend and API development Experience building production systems (testing, logging, error handling) Solid understanding of modern software engineering practices Nice to Have Experience with Elasticsearch and Kibana Experience with AWS and/ ...

Full Stack Engineer Python TypeScript

Hiring Organisation
Client Server
Location
London, England, United Kingdom
focus on backend Python and TypeScript and some React work on the front end. You'll take ownership and work across the full development lifecycle, collaborating with customers to build and scale the product. The work is interesting and complex, you'll be able to contribute to the product … London office (close to Waterloo) with flexibility to work from home twice a week. About you: You have strong backend Python coding skills, including API development You have full stack experience, including TypeScript and React (or another framework) You have a good understanding of system design and scalability ...

Data Engineer (Football Club)

Hiring Organisation
Singular Recruitment
Location
London Area, United Kingdom
Storage, Pub/Sub, and orchestrating workflows with Composer or Vertex Pipelines. Domain Knowledge: Understanding of sports-specific data types ( event, tracking, scouting, video ) API Development: Experience building data-centric APIs using FastAPI , especially in serverless environments (e.g., Google App Engine) Streaming Data: Familiarity with real-time data ...

Machine Learning Engineer (0–3 Years Experience).

Hiring Organisation
IT Graduate Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £75,000 per annum, OTE
researchers, and founders. Freedom to experiment with state-of-the-art models, tools, and frameworks. Modern tech stack (Python, LangChain, Hugging Face, OpenAI API, Pinecone, Kubernetes, etc.). Flexible working — remote-first culture with in-person team sessions for collaboration. Career acceleration — opportunities to own projects, lead development … Data Pipelines, Prompt Engineering, Model Fine-Tuning, Cloud Computing, AWS, Azure, Google Cloud, AI Infrastructure, Transformers, Reinforcement Learning, Vector Databases, Pinecone, Weaviate, Semantic Search, API Development, AI Deployment, Model Serving, AI Automation, Early Stage Startup, AI Startups, Tech Startup, Machine Intelligence, Applied AI, AI Applications, AI Innovation ...

Engineering Manager Remote UK-based setup

Hiring Organisation
Interact Consulting Limited
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
flexible environment for an experienced technical leader. As Head of Engineering, you'll guide a talented, fast-moving team building a cloud-native, API-driven platform that's transforming global healthcare. This is a rare opportunity to remain hands-on in Java code (around 20%) while shaping engineering direction … platform. Collaborate with product leadership to design and implement solutions that align to business goals and customer needs. Drive engineering excellence through modern development practicesclean code, TDD, automation, and cloud-native deployment. Introduce and evaluate emerging technologies that strengthen the platform's reliability and innovation. Essential skills Proven experience ...

PHP Developer

Hiring Organisation
Tank Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Senior PHP Developer Location: Fully remote (You must be based in the UK) PHP - Laravel - MySQL - MongoDB - Git - cPanel - WHM - RESTful API - Apache Role Overview An established organisation is seeking an experienced Senior PHP Developer to join its development function. This role suits a highly autonomous developer … complex systems, working closely with project and technical leadership while operating independently on day-to-day delivery. You will be responsible for the design, development, enhancement, and optimisation of both existing PHP-based platforms and new systems, including APIs and database-driven solutions, hosted within dedicated server environments. ...

Senior Front End Engineer

Hiring Organisation
NewDay
Location
Greater London, England, United Kingdom
Skills and Experience Essential Strong communication skills with both stakeholders and technical engineers. Advanced React experience using TypeScript. Strong Node.js knowledge for service and API development. Solid testing experience covering code quality, security, customer journeys, and accessibility. Excellent knowledge of writing semantic, accessible, and modular front-end code. Experience … integrating with services via RESTful APIs. Experience with agile software development methodologies. Practical experience setting up and running CI/CD pipelines. Experience working with cloud platform services. Familiarity with Storybook, atomic design principles, and design language systems. Desirable Knowledge of Azure cloud platform services. Experience working with monorepo ...

Salesforce Marketing Cloud Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
West London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £500 per day
support continuous improvement of business performances and customer experience. We're looking for a talented individual seeking out latest trends and techniques in email development to help M&S take the next step. Please include a link to your portfolio as part of your application. Your Responsibilities … Essential Skills/Knowledge/Experience (Up to 10) Strong understanding of HTML/CSS for responsive email. Strong understanding and experience in SFMC API development. Strong understanding and experience in SSJS scripting + relevant scripting languages. Experience using Salesforce Marketing Cloud and Content Builder to deliver automated email ...