API Development Jobs in the Thames Valley

1 to 25 of 26 API Development Jobs in the Thames Valley

Software Engineer

Reading, England, United Kingdom
Peregrine
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 ❯
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Software Engineer

slough, south east england, united kingdom
Peregrine
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 ❯
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Mid Software Developer

slough, south east england, united kingdom
Synthe
and well-tested code following established engineering best practices Collaborate with engineering teams, product management, and design to implement technical solutions Participate in code reviews and contribute to improving development standards and processes Build and maintain RESTful APIs and integrate with third-party services Work with cloud platforms (Azure/AWS) to deploy and maintain applications Contribute to technical … design discussions and architectural decisions Implement automated testing strategies and participate in CI/CD pipeline development Troubleshoot and resolve technical issues across the full software development lifecycle Participate in Agile/Scrum ceremonies and contribute to sprint planning and estimation Stay current with emerging technologies and recommend improvements to existing systems Mentor junior developers and contribute to … knowledge sharing within the team Your Qualifications 3-5 years of professional software development experience Strong proficiency in Python .NET framework and .NET Core/5+ development Experience in QA and Automation Experience with modern UI frameworks (Angular, React, or Vue.js) Solid understanding of web development fundamentals (HTML, CSS, JavaScript) Experience with cloud platforms, preferably Azure or More ❯
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Full Stack Software Engineer (Golang/Typescript)

slough, south east england, united kingdom
Safe Intelligence
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 ❯
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Data Engineer

slough, south east england, united kingdom
Oscar
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 ❯
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Senior Software Engineer

slough, south east england, united kingdom
Online Filings
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 ❯
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Lead Full Stack Engineer

slough, south east england, united kingdom
Humanoid
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 ❯
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Software Engineer - FTC

Oxford, Oxfordshire, United Kingdom
Hybrid / WFH Options
Nominet
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 ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Tech Support Developer

slough, south east england, united kingdom
rmg digital
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 ❯
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Senior Backend Engineer (Python)

slough, south east england, united kingdom
Primis
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 ❯
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Back End Developer

slough, south east england, united kingdom
Hybrid / WFH Options
rmg digital
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 ❯
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Senior Full Stack Engineer

Bracknell, Berkshire, England, United Kingdom
SR2
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 ❯
Employment Type: Full-Time
Salary: £70,000 - £90,000 per annum, Inc benefits
Posted:

Senior C# Developer - Finance

slough, south east england, united kingdom
Client Server
with he strategy team on Greenfield projects which you'll take ownership of and will see the business impact of. There's a focus on C# .Net backend and API development although you'll also have elements of front end work with JavaScript and React.js. Location: You'll be based in plush City office on a fulltime basis … Monday to Friday. About you: You have expertise with C# .Net, ASP.Net development You have a strong knowledge of databases (SQL or Oracle) You're comfortable with JavaScript/React You have a thorough knowledge of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms You are collaborative with excellent communication and stakeholder management skills You are … As a Senior C# Developer/Software Engineer you will receive a competitive package: Salary to £150k Bonus paid every six months based on personal performance (10-25%) Professional development Pension Health Insurance Gym membership Social events, free fruit, snacks, coffee etc. Apply now to find out more about this Senior C# Developer/Software Engineer (C# .Net) opportunity. More ❯
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Java Full Stack Software Engineer

Buckinghamshire, England, United Kingdom
Hybrid / WFH Options
IntePros
. 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 ❯
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Java Full Stack Software Engineer

milton keynes, south east england, united kingdom
Hybrid / WFH Options
IntePros
. 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 ❯
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Javascript Developer

slough, south east england, united kingdom
talego
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 ❯
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Full-Stack Robotics Software Engineer

slough, south east england, united kingdom
Humanoid
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 ❯
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Senior Data Engineer

slough, south east england, united kingdom
Hybrid / WFH Options
Tata Consultancy Services
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 ❯
Posted:

Full-Stack Developer

Bletchley, Buckinghamshire, United Kingdom
Hybrid / WFH Options
Experis
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 ❯
Employment Type: Contract
Rate: GBP 525 - 575 Daily
Posted:

Full-Stack Developer

Milton Keynes, Buckinghamshire, South East, United Kingdom
Hybrid / WFH Options
Experis UK
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 ❯
Employment Type: Contract
Rate: £525 - £575 per day
Posted:

Senior Data Engineer

slough, south east england, united kingdom
Mastek
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 ❯
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Integration Developer

Reading, United Kingdom
Royal Berkshire NHS Foundation Trust
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 ❯
Employment Type: Permanent
Salary: £55690.00 - £62682.00 a year
Posted:

Technical Architect

slough, south east england, united kingdom
Hybrid / WFH Options
Triad Group Plc
Triad is seeking a Technical Architect to take a leading role in designing robust, scalable, and innovative technology solutions for our clients. You will work closely with stakeholders and development teams to ensure the alignment of technology with business goals, while championing best practices in architectural design and delivery. Key Responsibilities: Collaborate with development teams, system administrators, and … communication and interpersonal skills. Ability to lead and influence technical discussions. Proven experience as a Technical Architect or similar role. In-depth knowledge of system design, software architecture, and development methodologies. Experience with cloud platforms (e.g., AWS, Azure, Google Cloud). Expertise in architectural design, data pipelines, cloud platforms, and API development. Knowledge of microservices and containerisation (Docker … for a minimum of 5 years and have the right to work in the UK. Triad’s Commitment to You As a growing and ambitious company, Triad prioritises your development and well-being: Continuous Training & Development: Access to top-rated Udemy Business courses. Work Environment: Collaborative, creative, and free from discrimination. Benefits: 25 days of annual leave, plus More ❯
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Lead Software Engineer (Full Stack) (Relocate To Bangkok)

slough, south east england, united kingdom
Manatal
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 ❯
Posted:

Front End Software Engineer (Typescript)

slough, south east england, united kingdom
Hybrid / WFH Options
Safe Intelligence
a Front End Software Engineer to join our team! We're particularly looking for someone with strong front end engineering and Typescript experience and with some experience of backend development (ideally in Golang ). In this role, you'll be a key contributor to the development and operation of our cutting-edge cloud-based platform. You should have … London (Hammersmith). We're excited to have you contribute to our mission! Responsibilities: As a Safe Intelligence Front End Software Engineer, you will: Make key contributions to software development on our TypeScript-based frontend systems, primarily utilizing React to craft intuitive and highly functional user interfaces. Develop simple and intuitive UI to enable workflows around testing and validating … Machine Learning systems with an eye to scalability, and asynchronous interactions. Interface with Golang-based cloud backend systems, focusing on API interactions and integration. Work proficiently across the entire stack to develop and integrate new features related to model versioning, dataset management, verification workflows, and result/metric aggregations. Requirements: The technical requirements for the role are: Must have More ❯
Posted:
API Development
the Thames Valley
10th Percentile
£49,350
25th Percentile
£51,375
Median
£57,500
75th Percentile
£63,750
90th Percentile
£70,500