76 to 100 of 269 API Development Jobs in the UK

play a key role in building and enhancing platforms that enable engineering teams and control owners to manage and monitor compliance with software development standards and controls. This is an excellent opportunity to work on modern, enterprise-scale applications built using Kotlin , Java , APIs , and Microservices , while contributing … Contribute to a CI/CD culture focused on rapid, high-quality software delivery. Skills & Experience Required Strong experience with Kotlin , or significant Java development experience with a desire to learn Kotlin. Experience in at least two of the following: API Development SQL & Database Technologies HTML/ ...

maintain full-stack applications – Build robust, scalable applications using Python (FastAPI/Flask), and ReactJS following best practices and design patterns Contribute to the development lifecycle – Write clean, maintainable code, implement CI/CD pipelines with GitHub Actions, deploy to Kubernetes, and ensure quality through testing and code reviews … environments Software Engineering Fundamentals – Strong understanding of OOP concepts, design patterns, SOLID principles, algorithms, data structures, and ability to write clean, maintainable code Backend Development – Proficiency in Python (Pandas, FastAPI, Flask) for building enterprise applications, data processing and API development Database Technologies – Hands‐on experience with RDBMS ...

driven workflows, network intelligence, and service assurance capabilities. The Digital Transformation Technical Authority will own technical decisions and will work across the full software development lifecycle, from requirements analysis and solution design through to deployment, support, and continuous improvement. The role combines hands‐on software engineering with technical leadership … maintain software applications, services, APIs, and automation workflows. Build high‐quality, reusable, maintainable, and scalable code following engineering best practices Develop event‐driven and API‐enabled solutions supporting network and operational automation. Develop orchestration workflows, automation scripts, and integrations across multiple systems. Produce technical documentation, design artefacts, and implementation ...

Tech: C# 5, Visual Studiuo, AWS, Angular. JS, Bootstrap, Docker Challenge: Greenfield Financial platform, API development, industry specific challenges Firm: Well-known fintech50 business, City of London, 30 man flat Dev Team Pay: 70k, Bonus- training budget, Pension, Life/Health, Some Flex WorkingC# Lead Developer FintechQuant Capital … Lead Developer MUST have: Degree ideally Comp Sci Proven practical knowledge and understanding of Object Orientation, SOA, design patterns like IoC and the Agile development practices Strong commercial experience of Microsoft development tools, including Visual Studio 2013 or higher and C# with .NET Framework 4.5.2 or higher Demonstrable ...

Specialist Remote £640 per day inside ir35 Active SC clearance required - single nationality We're looking for an experienced DevOps Engineer with strong Python development skills to join a major UK Government digital transformation programme. This is a development-focused DevOps role, ideal for someone with strong experience … across Python, Go, AWS, Kubernetes and automation within secure, large-scale environments. Key skills: * Strong Python development - backend systems, APIs, microservices & automation * Go/Golang development experience * AWS - EC2, S3, IAM, CloudWatch & Lambda * AWS SDKs - boto3/aws-sdk-go-v2 * Kubernetes API integration & automation * HashiCorp Vault ...

make a difference solving the worlds most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect … with your peers on technical direction within your team Desired Skills and Experience Core Software Engineering JavaScript frameworks (React, NextJS) TypeScript Python Java REST API development OpenAPI/Swagger Cloud & Infrastructure Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Data & Search ...

seeking a Senior Applications Developer to join a team delivering pricing solutions for the Foreign Exchange (FX) business. You will cover the full software development lifecycle — analysis, design, implementation, and testing — while providing technical leadership to the team.**Primary Responsibilities*** Design and develop high-quality trading GUIs providing compelling … applications using FDC3, and REST/WebSocket APIs. Experience with OpenFin or Interop is desirable but not essential.* Drive AI integration within the development lifecycle — including AI-assisted coding, automated test generation, and intelligent monitoring* Influence performance engineering across the UI stack: profiling, rendering optimisation, bundle analysis ...

advancements in engineering practices, evaluating and recommending innovative solutions as appropriate.• Support the Platform Lead and identify solutions to engineering gaps/challenges.• Facilitate development of cross-functional capabilities to address common gaps/challenges.• Act as key point of contact for engineering decisions from a technical and risk … databases infrastructure capabilities work.• Expertise in infrastructure components, performance tuning, and capacity planning.• Understanding of, and hands on experience of, micro services, software development, infrastructure automation, api development and basic application system’s design.• Strong understanding experience on Site Reliability Engineering, DevOps Capabilities (CI/CD/ ...

make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect … with your peers on technical direction within your team Desired Skills and Experience Core Software Engineering JavaScript frameworks (React, NextJS) TypeScript Python Java REST API development OpenAPI/Swagger Cloud & Infrastructure Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Data & Search ...

will help define how reusable age credentials integrate across platforms that serve millions of users globally. Leveraging strong experience in web and native application development, you will ensure seamless implementation of AgeKey across games, mobile apps, and web platforms. This role supports customers across Europe and provides regional time … market teams Troubleshoot complex technical issues and ensure high availability Minimum Qualifications Bachelor's in CS, Engineering, or related field 5+ years in software development with focus on systems integration and API development Strong experience in JavaScript/TypeScript Experience with RESTful APIs and webhook integrations Strong ...

technical direction within your team Required Skills and Experience Full‐stack experience across a selection of JavaScript frameworks (React, NextJS), TypeScript, Python, Java REST API development & OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL ...

Description:- Essential Skills & Experience Technical Skills 8+ years of Java development experience. Strong experience with Java 17+. Spring Boot. Spring Data JPA/Hibernate. Microservices architecture. REST API development and integration. PostgreSQL or similar relational database technologies. Docker containerisation. AWS cloud platforms and services. Jenkins CI/… pipelines. Maven. JUnit and automated testing frameworks. Git source control. Agile development methodologies (Scrum/Kanban). Jira and Confluence. Experience Proven experience delivering enterprise-scale Java solutions. Experience reviewing user stories and translating business requirements into technical designs and deliverables. Strong experience working directly with Business Analysts ...

/refactoring, unit test creation, documentation), while validating outputs through peer review, automated testing, and secure coding standardsApplies knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI-assisted development and automation capabilities, to improve the value realized by automationRequired qualifications, capabilities, and skillsFormal … data sensitivity considerations, secure handling of inputs/outputs, and adherence to resiliency and security expectationsHands-on experience using enterprise-authorized AI-assisted software development tools within the work environment (e.g., for coding, testing, troubleshooting, or documentation) with demonstrated ability to critically evaluate and validate AI-generated outputsPreferred qualifications ...

components that meet user needs end-to-end. Write clean, secure, and well-tested code in Scala , adhering to functional programming principles and modern development standards. Operate, maintain, and scale the services you build identifying, triaging, and resolving production issues. Follow and help improve internal engineering best-practice guidelines. … Grafana. We're looking for: Strong commercial experience designing, building, and operating production software systems using Scala and the Play Framework. Confidence with modern development practices (Test-Driven Development using ScalaTest/Specs2, continuous integration/continuous deployment, and automated testing). Solid understanding of information security principles ...

your peers on technical direction within your team Requirements/knowledge (you don't need everything) JavaScript frameworks (React, NextJS) TypeScript Python Java REST API development OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL … strategies, pull requests and merge processes We appreciate you may not be an expert in every area above - we can support with training and development in some areas! Please do make an application and we will identify where we can best support your growth specific to your application. Benefits ...

inside IR35 - Umbrella only Required skills Azure experience including Functions, App Services, Key Vault, Monitor, and general cloud native design. C#, .NET 10, REST API development, and enterprise backend engineering. Frontend development with TypeScript, JavaScript or NHS Digital Design System components. Confident and experienced … development agents and tools in daily workflow. Strong understanding of clinical workflows, interoperability patterns, and NHS technical constraints. Experience with regulated healthcare or medical device software (ISO 13485, ISO 14971, IEC 62304). Experience with national NHS APIs such as GP Connect, PDS, PDM, SCR, or BARS referrals. ...

digital transformation programme via a delivery partner and we are looking for experienced Full Stack .NET Developers. You'll be working on the development and enhancement of critical healthcare applications, helping deliver scalable, secure, cloud-native solutions that directly support NHS services and patient outcomes. This is an excellent …/CD pipelines and modern DevOps practices Essential Skills & Experience Backend Strong commercial experience with: C# .NET/.NET Core ASP.NET Core REST API development SQL Server Frontend Strong experience with: React TypeScript JavaScript HTML5 CSS3 Cloud & DevOps Strong Azure experience CI/CD pipelines Infrastructure and deployment ...

/Sub, BigQuery, Cloud Storage Cross-functional Collaboration: Partnering with BI, infrastructure, and product teams to understand data requirements and deliver technical solutions. API Development: Helping build and document APIs that deliver a seamless data experience for internal and external stakeholders. Database Operations: Working with SQL and NoSQL …/CD concepts. Problem-Solving Mindset: A proactive approach to debugging and a genuine curiosity about how data flows through a system. API Awareness: Basic understanding of REST APIs and how microservices communicate. Educational Background: A degree in Computer Science, Software Engineering, or a related field (or equivalent practical ...

Git. Automation and provisioning within cloud Platforms such as Microsoft Azure or AWS. Build and deployment automation with GitHub Actions or Azure DevOps. Web API development with ASP.NET Core(Minimal APIs or controllers). Relational databases such as PostgreSQLor SQL Server, and ORMs like Entity Framework Core. Containerisation … with Docker. Unit and integration testing using frameworks such as NUnitor xUnit. RESTful API design, including an understanding of HTTP verbs, status codes, and JSON. You will have a “secure by default” mind-set in all work you do, following guidelines and practices to improve the security ...

testing tools (e.g. Jest, Playwright). Experience integrating and onboarding 3rd‐party vendors, defining patterns and abstracting APIs. Understanding of microservices and RESTful API development (structuring, documentation, versioning, testing, stubbing/mocking). Experience performing code reviews and operating within an Agile framework. Pro‐active DevOps culture ...

engineering with DevOps enablement and hands-on integration of LLM technologies into secure, scalable enterprise environments. The ideal candidate will bring practical GenAI & Agentic development experience, strong automation skills, and the curiosity to solve emerging engineering challenges in this rapidly evolving space. Key Responsibilities Build and maintain Back … benchmarking, evaluation, and experiment tracking for LLM performance and cost. Contribute to RAG implementations and data access patterns supporting enterprise use cases. Help shape API standards, reusable patterns, and documentation for platform adoption. Troubleshoot and optimise performance across distributed systems and cloud services. Mandatory Skills & Experience Strong Python Back ...

system that enables a novel workflow, the next you could be fine-tuning performance to enable low-latency operational outcomes. Our Product Development organisation is made up of small teams of Software Engineers. Each team focuses on a specific aspect of a product and work collaboratively to build cross … witnessing how customers engage with Foundry and experiencing these pain points firsthand, you'll gain unique insights that feed directly back into our development process, helping to refine and enhance our products. Core ResponsiblitiesArchitecting, developing, and maintaining high-performance, scalable backend services that underpin our our operational data ...

between tactical edge sensors in low-bandwidth environments and strategic HQs running enterprise analytics. Python Engineering: High proficiency in Python for microservices, API development (FastAPI/Flask), data processing, and backend service development. Docker & Container Orchestration: Deep knowledge of containerisation using Docker, multi-stage builds, minimal base images … code adhering to MoD cyber security standards, automated testing, and building pipelines that package software into deployable Docker artifacts. The Experience You'll Bring Development & Tech: Python, Microservices, REST APIs, FastAPI, Flask, Asynchronous Programming, Object-Oriented Programming (OOP), Test-Driven Development (TDD). DevOps & Deployment: Docker, Docker Compose ...

Fully remote within the UK 12 month fixed term contract with strong possibility for extension 33 days' annual leave Pension and private healthcare Professional development and a clear route to progression A supportive, mission-driven team Work that makes a visible difference to people's lives What … What you'll bring Extensive commercial experience with C#, .NET and SQL Strong Azure experience, including cloud adoption frameworks A proven track record in API development and modern system architecture Hands-on experience with CI/CD pipelines, version control, automated testing and code reviews A calm, practical ...

Fully remote within the UK 12 month fixed term contract with strong possibility for extension 33 days' annual leave Pension and private healthcare Professional development and a clear route to progression A supportive, mission-driven team Work that makes a visible difference to people's lives What … What you'll bring Extensive commercial experience with C#, .NET and SQL Strong Azure experience, including cloud adoption frameworks A proven track record in API development and modern system architecture Hands-on experience with CI/CD pipelines, version control, automated testing and code reviews A calm, practical ...