9 of 9 API Development Jobs in the City of London

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
Intent HQ
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 ...

Full Stack Developer

Hiring Organisation
Understanding Recruitment
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 per annum
architecture, ensuring the platform is robust and scalable. Skills required for the Full Stack Developer are: * Strong experience with Angular (latest version) for frontend development* Proficiency in Node.js and backend API development* Experience with AWS serverless architecture, including Lambda, Cognito, and other cloud services* Ability to work ...

Workday Integration Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £501 per day
Title : Workday Integration Developer 3 months Remote Inside IR35 - umbrella only Role requirements: Minimum of 3 years of experience with Workday HCM integrations - development, maintenance & support. Experience of Workday Integration Tools: Proficiency with Workday's integration tools and technologies, including Workday Studio, Enterprise Interface Builder (EIB), and Workday … PECI & PICOF. Programming Languages: Knowledge of programming languages such as XSLT for data transformation and scripting languages like JavaScript or Groovy for custom integrations. API Integration: Experience with RESTful and SOAP APIs to connect Workday with other systems and applications. Data Formats: Familiarity with various data formats like ...

Lead Data Engineer

Hiring Organisation
Hays Technology
Location
City of London, London, Cheap, United Kingdom
Employment Type
Contract
Matillion ETL and SQL Experience designing and managing Snowflake Data Warehouse solutions Strong experience with Qliksense, data modelling and self-service analytics Experience in API Development What you'll get in return An exciting opportunity to join an international organisation in financial services. Furthermore, a competitive day rate ...

Forward Deployed Engineer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
City of London, London, United Kingdom
consultancies is helpful — but not required. Nice to Have (Not Required) Experience with tools like Databricks, dbt, Airflow , or similar platforms Some exposure to API development or backend systems Experience integrating enterprise systems (ERP, CRM, operational platforms) Familiarity with dashboards or data visualisation tools Exposure to AI-enabled ...

Data Operations Engineer

Hiring Organisation
Radley James
Location
City of London, London, United Kingdom
data pipelines to feed real time trading and research systems. Implement data quality checks, anomaly detection and monitoring frameworks. Build and maintain high performance API's to expose market and reference data to trading, research and analytics platforms. Who you are: 3+ years in Data Engineering … performance, time sensitive environments. Strong Python proficiency, including exposure to libraries such as Pandas, Arrow, and Spark. Strong grasp of data modelling, normalization and API development for large scale analytical or trading systems. Experience with lakehouse architectures (Databricks ideally, or Delta Lake). Exposure to real time ...

Senior Front End Developer - Vue/.NET - Law Firm

Hiring Organisation
Lorien
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
planning, and other agile ceremonies. Education, Skills & Experience: Strong experience as a full stack developer but with a deep understanding of modern Front End development best practices and an expert in Vue Extensive experience with JavaScript, TypeScript, and modern Front End frameworks Proficiency with CSS preprocessors, HTML5, and CSS3. … Familiarity with RESTful APIs, source control (git), and Agile methodologies. Desirable: Experience with .NET/.NET Core, Dapper, Entity Framework, MS SQL Server, and API development. Strong experience working with NPM/Yarn, bundlers (Webpack/Vite), and build tools Why Join? Be part of a diverse and inclusive ...

Back End Developer

Hiring Organisation
Apex Systems
Location
City of London, London, United Kingdom
week Hybrid/Remote : Hybrid – 3 days per week Duration: 1 year + option to extend Job Description: Top Must-Haves: Python Postgres SQL API Developent (REST) Good CS and OOP fundamentals. Experience with SDLC and design of new greenfield solutions Responsibilities: • Design sophisticated backend components, services, platforms … knowledge of PostgreSQL. • Strong Software Engineering Design capabilities and understanding of Computational Complexity. • Skillful in software engineering practices & best practices for the full software development life cycle, including coding standards, code reviews, source control management, continuous deployments, testing, and operations. Thanks. ...