1 to 25 of 27 API Development Jobs in the Thames Valley

as a specialist consultant, working on a wide array of complex projects across multiple industries. The Role: We are looking for a Software Engineer with a strong foundation in API development and C# to join our data engineering team in a highly regulated industry. In this role, you’ll be instrumental in designing and building scalable, secure software … strict regulatory standards. We’re seeking candidates with over 5 years of relevant experience, a solid understanding of software system design, and a strong command of C# and modern API development patterns. A background in working with data systems, cloud integrations, and secure, large-scale applications will be highly advantageous. Responsibilities: Design, develop, and maintain scalable APIs and … decisions, and system documentation. Stay current with best practices and emerging technologies in software engineering and data systems. Skills & Experience: You will have the following skills or proven experience: API Development: Proven experience designing and building RESTful APIs and services at scale. Experience with authentication, authorization, and secure API communication (OAuth2, JWT, etc.). Familiarity with API More ❯

as a specialist consultant, working on a wide array of complex projects across multiple industries. The Role: We are looking for a Software Engineer with a strong foundation in API development and C# to join our data engineering team in a highly regulated industry. In this role, you’ll be instrumental in designing and building scalable, secure software … strict regulatory standards. We’re seeking candidates with over 5 years of relevant experience, a solid understanding of software system design, and a strong command of C# and modern API development patterns. A background in working with data systems, cloud integrations, and secure, large-scale applications will be highly advantageous. Responsibilities: Design, develop, and maintain scalable APIs and … decisions, and system documentation. Stay current with best practices and emerging technologies in software engineering and data systems. Skills & Experience: You will have the following skills or proven experience: API Development: Proven experience designing and building RESTful APIs and services at scale. Experience with authentication, authorization, and secure API communication (OAuth2, JWT, etc.). Familiarity with API More ❯

Contract Developer - Node.js development, REST API design, and SIP-based communications Duration: 3 months (Outside IR35) Location: Bracknell/Hybrid Contract Developer with deep expertise in Node.js development, REST API design, and SIP-based communications. This role is crucial for supporting the migration of legacy device management, call control, and configuration workflows to a secure, scalable … Cloud Migration & Refactoring: Analyse existing applications to identify dependencies on on-prem infrastructure and design cloud-native solutions. Refactor services to enhance scalability and reliability in the cloud. Service & API Development: Develop and maintain secure REST APIs for functionalities such as SIP authentication, call control, and real-time data interactions. Real-Time Communication Integration: Implement and maintain robust … Compliance: Oversee the migration of sensitive data to secure cloud storage solutions, ensuring compliance with GDPR and other regulatory standards. Required Skills & Qualifications: Experience: Minimum 3 years of backend development experience using Node.js/Express. Proven track record in building and deploying REST APIs. Experience with SIP/TLS integration and managing real-time communications. Familiarity with cloud services More ❯

seeking a Full Stack Software Engineer to join our team! We're particularly looking for someone with strong Golang experience and with some experience of TypeScript and React frontend development . If you also have a knack for Kubernetes/containerisation, that's a significant bonus! In this role, you'll be a key contributor to the development … We're excited to have you 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. Contribute significantly to software development on our TypeScript-based frontend systems , primarily utilizing React to craft intuitive and highly functional user interfaces. Productize and … dataset management, verification workflows, and result/metric aggregations. Collaborate closely with our scientific and technical teams to interface with and containerize our PyTorch-based verification toolkit. Champion an API-first development approach to deliver feature-rich, versioned interfaces that support both our TypeScript user interface and Python-based SDKs. Develop and maintain Infrastructure as Code (IaC) and More ❯

Data Engineer – Onsite (Central London) ⭐️ £50,000 – £55,000 + benefits ⭐️ 5 days onsite – Central London ⭐️ SQL, Python, API development ⭐️ Financial background preferred Join a leading investment management firm with a strong reputation for innovation in the financial sector. This is a fantastic opportunity to play a key role in building and maintaining robust data infrastructure supporting high … for a hands-on Data Engineer with solid SQL skills and experience in building and maintaining back-end APIs. SQL - strong experience essential. Python experience required. Proven experience in API development and maintenance. Previous experience within a financial services or investment management environment preferred. Strong analytical mindset and attention to detail. Excellent problem-solving and communication skills. More ❯

As a Senior Software Engineer, you will play a pivotal role in architecting and developing our next-generation web application and API. This role requires technical leadership, hands-on development, and mentoring of junior developers. You will drive the adoption of best practices, ensuring scalability, security, and performance. If you are passionate about software development, enjoy solving complex … tangible impact. This role will be eligible for visa sponsorship only for candidates that are already based in the UK. Key Responsibilities Technical Leadership: Lead the technical design and development of scalable, secure web applications and APIs, driving best practices across the development lifecycle. Architecture & Design: Oversee system architecture decisions, ensuring alignment with business goals and scalability requirements. … Mentorship: Mentor and guide junior developers, fostering a collaborative learning environment. API Development: Design and build RESTful API endpoints using NodeJS and Express, including detailed API documentation. Database Management: Design, optimize, and maintain complex SQL data models, ensuring efficient data structures, query performance, and reliability. Full-Stack Development: Develop responsive and performant front-end applications More ❯

up new horizons, our faith in its potential unveils a new outlook where, together, humans and machines build a new future filled with knowledge, inspiration, and incredible discoveries. The development of a functional humanoid robot underpins an era of abundance and well-being where poverty will disappear, and people will be able to choose what they want to do. … controllers. Maintain clear and detailed documentation of tools, processes, and best practices to support team knowledge and future development. We’re Looking For: Solid experience with Python for backend development and API creation. Strong experience with React (or similar frameworks) for creating user-friendly and scalable web applications. Expertise in API development, data handling, and creating More ❯

We are looking for a API solution architect who has had experience of dealing with Cognizant. Key Responsibilities • API Strategy & Leadership • Define and own the API delivery roadmap aligned with business and digital transformation goals. • Evangelize API-first architecture across the organization. • Lead and mentor a high-performing team of API developers, product owners, and … delivery managers. • Program & Delivery Management • Oversee the successful delivery of API projects from concept to production across multiple teams and geographies. • Establish KPIs and OKRs to measure performance, velocity, and reliability of API releases. • Ensure timely delivery while maintaining high quality, scalability, and security standards. • Architecture & Governance • Work closely with architects and platform teams to ensure consistent and … scalable API designs. • Establish API governance models, including versioning, security, documentation, and usage guidelines. • Ensure compliance with relevant standards (e.g., REST, GraphQL, OpenAPI, OAuth2). • Stakeholder & Partner Collaboration • Collaborate with internal business units, external partners, and clients to understand integration needs. • Act as the point of contact for strategic API integrations with partners and third-party platforms. More ❯

working and mentor junior developers where appropriate. Implement security best practices across cloud environments. About You: Proven experience with at least one public cloud (AWS, Asure, or GCP) Strong API development and database experience (Postgres/Oracle + SQL). Proficiency in Java is essential, with Go, Python, or similar languages Experience with front-end frameworks (ideally Angular More ❯

Are you a technically minded problem-solver with a passion for learning and development? This is a brilliant opportunity for a Tech Support Developer with around three years of experience to join a fast-moving, innovative tech company working on fascinating, real-world challenges. Tech Support Developer Salary: £50k Based: London (3 days in office) In this varied and … run smoothly. You’ll work closely with the engineering team, gaining hands-on experience with Node.js and backend systems, with the chance to get involved in other areas of development as your skills grow. Key Responsibilities: Investigate, troubleshoot, and resolve production issues across front-end, back-end, and infrastructure layers Collaborate with clients, customer success, and engineering teams to … platform functionality Contribute to improving support processes, documentation, and system reliability Continuously develop your technical knowledge across a range of technologies Required Skills & Experience: 3+ years’ experience in Node.js development Proficiency in TypeScript and JavaScript Experience with React , Express , and REST API development Strong understanding of SQL and Git Excellent analytical and problem-solving skills A genuine More ❯

Work with automation-generated code and make it production-ready Build robust backend services using Python APIs and data workflows Create seamless integrations with external systems Champion AI-assisted development practices across the engineering team What You'll Do: Own backend features and API integrations (Python, FastAPI, gRPC, SQL) Adapt and extend auto-generated pipelines and front-end … outputs Build connectors for APIs, files, and external systems Integrate LLM-based capabilities with robust evaluation and monitoring Champion AI-assisted development practices and tools Set up guardrails and context packs for AI-powered workflows Mentor team members on AI development best practices Help the team ship high-quality code faster using AI tools Work closely with cross … functional teams including Solution Strategists, Data Platform, and Support teams Contribute to architectural decisions and technical strategy What We're Looking For: Strong Python backend/API development experience Solid SQL and data modeling capabilities A solid background within start-ups and able to work on multiple projects similtaneously Proven experience with integrations (APIs, SFTP, SharePoint, webhooks) Hands More ❯

getting to know the client’s needs, the company’s platform features and technologies from the ground up. Experience needed as a Back End Developer: 3+ years of Node.js development Type Script/Strong JavaScript skills React REST API development SQL Git More ❯

teams on new features. Influence architecture and technical strategy. Ensure reliability and performance in production. Lead code reviews, improve processes and mentor juniors. Skills & experience 5+ years’ full stack development experience. Strong React and modern JavaScript/TypeScript. Backend API development (Python preferred, Node considered). Cloud deployment (AWS or similar) and database knowledge (MySQL). Strong More ❯

and impact. Cutting-edge stack: Build with modern tools — Python, FastAPI, TypeScript, LLMs, MLOps — on high-stakes, real-world problems What We’re Looking For 2+ years of software development experience Proven track record of building and shipping full-stack products in fast-paced, product-driven teams Hands-on experience building production AI systems with Python, PyTorch, and LLMs … OpenAI, Anthropic, etc.), integrated into real user workflows Familiarity with MLOps tools and CI/CD for both traditional and ML-driven systems Strong backend and API development skills — comfortable owning systems end-to-end, from data pipelines to user-facing interfaces Passion for building clean, usable products that solve real problems, fast Comfortable wearing multiple hats, challenging More ❯

. Experience with relational databases (SQL, PostgreSQL, MySQL) and ORM frameworks (Hibernate, JPA). Strong skills in front-end technologies: HTML, CSS, JavaScript, ReactJS, MobX, TypeScript. Experience with RESTful API design and development. Familiarity with cloud platforms (AWS, Azure, or GCP) and containerization (Docker, Kubernetes). Experience with Git and Atlassian tools (Jira, BitBucket, Bamboo). Knowledge of agile … methodologies (Scrum, Kanban). Solid testing skills with JUnit, Jest, Cypress, or Playwright. Excellent problem-solving and debugging skills. Preferred Qualifications Prior experience building Enterprise SaaS platforms. SAP development experience (ABAP, HANA). Cloud development experience with AWS, Azure, or Google Cloud. Knowledge of CI/CD pipelines and tools (Jenkins, GitLab CI). Experience with TDD or More ❯

. Experience with relational databases (SQL, PostgreSQL, MySQL) and ORM frameworks (Hibernate, JPA). Strong skills in front-end technologies: HTML, CSS, JavaScript, ReactJS, MobX, TypeScript. Experience with RESTful API design and development. Familiarity with cloud platforms (AWS, Azure, or GCP) and containerization (Docker, Kubernetes). Experience with Git and Atlassian tools (Jira, BitBucket, Bamboo). Knowledge of agile … methodologies (Scrum, Kanban). Solid testing skills with JUnit, Jest, Cypress, or Playwright. Excellent problem-solving and debugging skills. Preferred Qualifications Prior experience building Enterprise SaaS platforms. SAP development experience (ABAP, HANA). Cloud development experience with AWS, Azure, or Google Cloud. Knowledge of CI/CD pipelines and tools (Jenkins, GitLab CI). Experience with TDD or More ❯

in collaborative teams, and understands that building smarter doesn’t always mean building from scratch. What You’ll Bring: Solid commercial experience with Node.js and TypeScript Strong understanding of API development (REST) Background working with SQL and NoSQL databases At least 3 years’ experience in backend software engineering Previous experience within healthcare (FHIR, HL7, EHRs, or LIMS) or More ❯

up new horizons, our faith in its potential unveils a new outlook where, together, humans and machines build a new future filled with knowledge, inspiration, and incredible discoveries. The development of a functional humanoid robot underpins an era of abundance and well-being where poverty will disappear, and people will be able to choose what they want to do. … low-level language (e.g., C++, C, Bash) for developing robot-side services. Strong experience with React (or similar frameworks) for creating user-friendly and scalable web applications. Expertise in API development, data handling, and creating scalable service architectures. Proficiency with CI/CD pipelines, containerization (e.g., Docker, Kubernetes), and workflow automation. Understanding of network protocols and secure data More ❯

on expertise with BigQuery, Cloud 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 pipelines and data ingestion at More ❯

a Senior GCP Data Engineer you will be responsible for providing top-tier data capabilities, leveraging your engineering skills, and embracing the possibilities offered by cloud technology. Key responsibilities: API Development: Design, develop, and maintain robust and scalable backend systems and APIs. Data Ingestion: Develop and maintain data pipelines to extract data from various sources and load it … data. Identifying and resolving performance bottlenecks. Desirable knowledge & experience: Experience with data analytics and Big Data technologies. Knowledge of cloud security best practices and compliance standards. Experience with agile development methodologies. GCP certifications (e.g., Google Cloud Certified Professional Cloud Developer) Rewards and Benefits TCS is consistently voted as a Top Employer in the UK and globally. Our competitive salary More ❯

across UK Government for digital redaction and data sensitivity review. You'll join a multi-disciplinary team delivering scalable, secure, and high-performance software solutions. Key Responsibilities Front-End Development Build responsive user interfaces using HTML, CSS, JavaScript, TypeScript, and React. Ensure cross-browser compatibility and optimised user experience. Back-End Development Develop APIs and microservices using Java … end tests using JUnit, Test Containers, Vitest, and StoryBook. Conduct code reviews to maintain quality and consistency. Security & Documentation Implement authentication, authorisation, and other security best practices. Maintain internal API and code documentation. Essential Skills Strong experience with React, TypeScript, Java, Spring Boot, and RESTful API development. Proficient with SQL databases and CI/CD tools. Hands-on More ❯

across UK Government for digital redaction and data sensitivity review. You'll join a multi-disciplinary team delivering scalable, secure, and high-performance software solutions. Key Responsibilities Front-End Development Build responsive user interfaces using HTML, CSS, JavaScript, TypeScript, and React. Ensure cross-browser compatibility and optimised user experience. Back-End Development Develop APIs and microservices using Java … end tests using JUnit, Test Containers, Vitest, and StoryBook. Conduct code reviews to maintain quality and consistency. Security & Documentation Implement authentication, authorisation, and other security best practices. Maintain internal API and code documentation. Essential Skills Strong experience with React, TypeScript, Java, Spring Boot, and RESTful API development. Proficient with SQL databases and CI/CD tools. Hands-on More ❯

Required Job Type: Full-Time Experience: 8+ years Job Summary : We are seeking a highly skilled and experienced Senior Data Engineer to join our team and contribute to the development and maintenance of our cutting-edge Azure Databricks platform for economic data. This platform is critical for our Monetary Analysis, Forecasting, and Modelling activities. The Senior Data Engineer will … and reliability. This role requires a strong understanding of data engineering principles, big data technologies, cloud computing (specifically Azure), and experience working with large datasets. Key Responsibilities : Data Pipeline Development & Optimisation: Design, develop, and maintain robust and scalable data pipelines for ingesting, transforming, and loading data from various sources (e.g., APIs, databases, financial data providers) into the Azure Databricks … accuracy throughout the data lifecycle. Azure Databricks Implementation: Work extensively with Azure Databricks Unity Catalog, including Delta Lake, Spark SQL, and other relevant services. Implement best practices for Databricks development and deployment. Optimise Databricks workloads for performance and cost. Need to program using the languages such as SQL, Python, R, YAML and JavaScript Data Integration: Integrate data from various More ❯

team.Ensure that services are supported with consistent, professional and valueadding expertise through digital interoperability and ensure the Trust gainsthe maximum benefits as a result. You will work with REST API's* and ensure all integrated solutions adhereto HL7/FHIR* standards. Main duties of the job Deputising for the Integration Development Lead you will lead on strategic technical … projects, ensuring alignment with broader organizational goals and IT strategy. Prioritize resources, address bottlenecks, and ensure timely delivery of critical milestones. Oversee the day-to-day management of interface development processes and procedures. Ensure the secure management and integrity of sensitive data across all Trust systems. Ensure that new or replacement systems integrate properly with other Trust systems, aligning … clear and concise technical specifications, integration roadmaps, and solution designs. Tailor documentation for both technical and non-technical stakeholders to ensure comprehension across varying levels of seniority. Lead the development and review of business cases for new integrations, evaluating potential costs, benefits, and risks. Collaborate with finance and procurement teams to present these cases to senior decision-makers. Act More ❯

for someone eager to learn, be proactive, energetic, and understand the importance of making an impact. The Lead Full Stack Engineer will be responsible for both frontend and backend development, ensuring seamless integration and high performance of web applications. Responsibilities Lead technical initiatives and projects, ensuring high-quality delivery. Design and implement complex software applications, emphasizing robust and scalable … performance of web applications. Strong knowledge of software engineering principles and 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 … will be collaborating with talented individuals in the industry Join a lively and highly international team Indulge in a challenging and innovative working culture Attractive medical healthcare plan Personal development allowance 2 weeks of work from anywhere per year Regular fun team-building activities Company trip Our Tech Stack Our engineering team leverages a variety of modern technologies. While More ❯