1 to 25 of 117 API Development Jobs in the UK excluding London

support Infrastructure as Code (IaC) implementations. Participate in design reviews and peer code reviews. Troubleshoot application, platform and integration issues. Support deployments across development, testing and production environments. Contribute to CI/CD pipelines and deployment automation. Support monitoring, logging and observability capabilities. Produce technical documentation, operational procedures … team activities. Maintain awareness of emerging technologies and engineering best practices. About You You should have: Experience with cloud-native application development. Strong API development and REST API expertise. Experience designing and developing microservices architectures. Knowledge of event-driven architecture patterns. Hands-on Kubernetes experience. Experience with ...

Role: Development Manager - Digital & API Salary: Up to £100,000 per year + Bonus Location: Surrey Working Pattern: Hybrid - 2 days per week onsite (5 days per week during the first month) We're working with a well-established organisation embarking on a company-wide digital transformation programme … investing heavily in modern technology, API development and engineering capability. This is an excellent opportunity for an experienced Development Manager to lead Digital & API engineering teams through a significant period of change. You'll play a key role in driving modern engineering practices, supporting Agile delivery ...

technology stack and wants exposure to enterprise-scale systems used by clients across multiple international markets. You will be involved in the full software development lifecycle, contributing to the development, maintenance, enhancement, and support of business-critical applications. The Role You will work closely with senior developers, technical … business stakeholders to deliver robust software solutions across a range of internal and client-facing platforms. The role offers a strong mix of: Backend development API development Database work Application support Technical improvements Collaboration across the wider business This is a hands-on development role suited ...

craft: clean code, well-designed APIs, comprehensive tests, and digital experiences that actually work beautifully for guests Key Responsibilities include: Front-End Feature Development Build and maintain features across Warner's guest-facing digital products using React and Next.js — implementing server-side rendering, static generation, and client-side interactions … features. Contribute to Club Warner loyalty platform features — enrolment flows, member personalisation, and loyalty mechanics — consuming APIs from back-end services. Back-End Microservice Development Design and build .NET 8/ASP.NET Core microservices that form the back-end of Warner's digital platform — implementing REST APIs, domain logic ...

Infrastructure as Code where required. Participate in peer code reviews and design reviews. Troubleshoot and resolve application and integration issues. Support deployment activities across development, test and production environments. Produce technical documentation and operational runbooks. Ensure solutions meet security, performance and resilience requirements. Collaborate with Platform Engineers, Security Engineers … Support production incidents and problem resolution as required. Maintain awareness of emerging technologies and engineering best practices. Key Skills & Experience Software Engineering Cloud-native Development API Development Microservices Architecture Event-driven Architecture Kubernetes Git CI/CD Infrastructure as Code DevSecOps Identity Standards (OAuth2, OIDC, SAML, SCIM ...

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• Frontend Development – Experience with ReactJS, Node.js ...

lead projects, mentor junior developers, and work on high-impact, secure banking solutions. You will be a key contributor to web portal and API development, ensuring performance, security, and reliability in a dynamic environment. This role is ideal for developers with strong technical expertise who are looking … portals using ASP.NET MVC/.NET Core Design and integrate REST APIs with internal and third-party services Implement secure authentication mechanisms (JWT, OAuth2, API Keys) Connect applications to relational databases using Entity Framework Core (DbContext, LINQ, Migrations) Debug and trace request flows from UI Controller API Database ...

engineering direction of products used by thousands of organisations across the UK and internationally. This is an opportunity to combine hands-on software development with technical leadership, working with modern Microsoft technologies, AI-assisted development tools, and cloud-native architectures. Your Team You’ll work within a collaborative … across both our engineering practices and products. You'll have the opportunity to leverage tools such as GitHub Copilot while contributing to the development of intelligent capabilities within our SaaS platform. Beyond delivering great software, you’ll help mentor others, contribute to technical decision‐making, and influence ...

role in raising engineering quality, accelerating delivery through automation, and driving continuous improvement across the platform. Job Responsibilities: Executes software solutions including design, development, and technical troubleshooting, with the ability to think beyond routine or conventional approaches to build durable solutions and break down complex technical problems using Java … complex applications (e.g., service boundaries, data flows, interface contracts, resiliency patterns) and is accountable for ensuring design constraints are implemented and validated through software development Gathers, analyses, synthesizes, and develops visualizations and reporting from large, diverse datasets to drive continuous improvement in application performance, resiliency, and operational stability Proactively ...

experienced software engineer who enjoys taking ownership and solving challenging technical problems. You'll ideally have experience with: Full stack software development in commercial environments Angular or another modern TypeScript frontend framework Java backend development SQL databases and API development System integration and enterprise application development CI/CD pipelines, automated testing and DevOps practices Software architecture and scalable system design Agile delivery and collaborative development practices Just as importantly, you'll be someone who: Enjoys working through ambiguity and solving complex problems Communicates confidently with both technical and business stakeholders Takes pride ...

Monday – FridayInterview Process: 3-stage processWhy SCC An inclusive workplaceExcellent package: solid basic and company benefitsHybrid working & core hours in line with role requirementsCareer development and life-long learning opportunitiesOpportunity to join Europe's largest privately-owned IT CompanyRole purpose: We are looking for an AI Engineer to design … existing business process or platform. What stays consistent across all of it is the approach: working with best-in-class foundation models via API, integrating cleanly with enterprise data and systems, and building things that work reliably in production — not just in a demo. You will work closely with ...

/SQL Server/REST APIs THE ROLE A growing, product-led software business is looking for a Software Engineer to join its Product Development team on a hybrid basis (two days a week on-site in Newark). This is a genuine blend of hands-on development … BENEFITS Salary of £35,000 - £40,000 Hybrid working - only two days a week on-site in Newark Full-lifecycle exposure across support, development and deployment Modern stack and up-to-date tooling, including AI-assisted development platforms International, product-led business with real scope to learn ...

lookout for 2 Senior AI Engineers to play a pivotal role in our AI and Generative AI initiatives, focusing on the design, development, and deployment or integration of advanced AI systems and solutions.We’re seeking Senior Engineers with deep technical expertise in AI technologies, particularly in areas such … Azure OpenAI, Cognitive Services, prompt engineering, Retrieval‐Augmented Generation (RAG) architectures, vector stores, and API integrations. You’ll be able to demonstrate substantial experience in Azure networking and infrastructure, enabling you to effectively design, and manage secure cloud‐based AI environments. This includes leveraging off‐the‐shelf agentic ...

lookout for 2 Senior AI Engineers to play a pivotal role in our AI and Generative AI initiatives, focusing on the design, development, and deployment or integration of advanced AI systems and solutions. We’re seeking Senior Engineers with deep technical expertise in AI technologies, particularly in areas such … Azure OpenAI, Cognitive Services, prompt engineering, Retrieval‐Augmented Generation (RAG) architectures, vector stores, and API integrations. You’ll be able to demonstrate substantial experience in Azure networking and infrastructure, enabling you to effectively design, and manage secure cloud‐based AI environments. This includes leveraging off‐the‐shelf agentic ...

Implement Infrastructure as Code using Terraform. Establish and maintain CI/CD pipelines and GitHub Actions workflows. Embed security controls and governance into the development lifecycle. Help define engineering standards, reusable patterns and best practices. Coach internal teams and contribute to the organisation's growing AI capability. Essential Skills … Experience We're looking for candidates with strong experience in: Cloud & Platform Microsoft Azure Kubernetes Terraform GitHub Actions Development Python API Development REST APIs GraphQL AI & Automation Large Language Models (LLMs) GPT, Claude and/or Gemini AI Agents Retrieval-Augmented Generation (RAG) Vector Databases LLM orchestration ...

large scale enterprise applications within a global financial services organisation. This is an opportunity to work on modern software engineering projects where AI assisted development is actively encouraged. You'll use tools such as GitHub Copilot, Claude or similar technologies alongside modern engineering practices to help deliver high quality … code Participate in code reviews and Agile ceremonies Troubleshoot and resolve production issues Use AI tools such as GitHub Copilot or Claude to accelerate development Contribute to continuous improvement and engineering best practice What we're looking for Strong commercial Java development experience Spring Boot and REST API ...

large-scale data and asset modelling using Python, with particular expertise in Pydantic-based data modelling, schema definition and validation. Experience with AI-assisted development and agent orchestration tools is highly desirable, particularly where these technologies are used to accelerate high-quality software delivery. In this role, you will … models. Develop high-quality Python solutions for data modelling and governance use cases, using Pydantic for schema definition, validation, serialization, configuration-driven models and API-ready data structures. Build reusable Python libraries, modelling components and automation patterns supporting data ingestion, governance workflows, data quality, lineage, integrations and reporting ...

production-grade software. This role is ideal for someone who enjoys working at pace in secure, technically challenging environments, with opportunities to contribute across API development, cloud-native services and data integration. Typical responsibilities include: Developing software services using languages such as Java, JavaScript, TypeScript, Python or C++ … platforms, data services and streaming technologies Implement monitoring, logging and observability to support live service operation Support secure deployment and operation of applications across development, test and production environments Skills Required Experience working within the UK Security & Intelligence, defence or other secure government environments Strong knowledge of modern software ...

Toshiba Europe Limited has pioneered the development of quantum communication systems and networks over the past decade, setting new standards for cryptography and data security. We are currently seeking a Software Engineer (or Senior Software Engineer, depending on experience) to join the growing team developing our products within Toshiba … dynamic organisation, working within a diverse team of engineers, with the ability to make a significant impact and playing a major role in the development of next-generation secure communication and networking products. Responsibilities Architect, build and maintain command and control software to orchestrate hardware and implement quantum communication ...

Description Sage Embedded Services is a modular, API-first solution that enables software platforms, banks, and fintechs to integrate Sages accounting and compliance capabilities directly into their own products. This projectExternal Partner Integrationsfocuses on embedding Sages core offerings into third-party platforms, ensuring seamless interoperability and data flow. This … Strengthen Brand Loyalty: Becoming a core component of partner platforms increases customer stickiness and long-term engagement with Sage services. Key Skills detailed below. API Development. Understanding and Development of Microservices. Designing Config templates for API's. Understanding of YAML templated and YAML code ...

Description Sage Embedded Services is a modular, API-first solution that enables software platforms, banks, and fintechs to integrate Sage's accounting and compliance capabilities directly into their own products. This project-External Partner Integrations-focuses on embedding Sage's core offerings into third-party platforms, ensuring seamless interoperability … Strengthen Brand Loyalty: Becoming a core component of partner platforms increases customer stickiness and long-term engagement with Sage services. Key Skills detailed below. API Development. Understanding and Development of Microservices. Designing Config templates for API's. Understanding of YAML templated and YAML code ...

will be working for one of our high-profile trading clients within the financial services domain, contributing hands-on to a Java-based development team supporting a high-volume message processing environment. The team is heavily Java-focused, operating within a client ecosystem that relies extensively on Kafka, Kubernetes … handling, and backpressure management. Experience designing and developing cloud-native applications with a microservices architecture running on Docker/OpenShift/Kubernetes. Strong application development skills in Java, SQL (SQL Server, Oracle, etc.) and messaging platforms such as Kafka and MQ. Experience with the Spring framework and Spring Boot ...

Liverpool | Hybrid Working | Competitive Salary We're looking for an experienced Lead Solutions Architect & Development Lead to join our senior IT team, reporting directly to the IT Director. This is a hands-on technical leadership role where you'll shape the firm's technology strategy while remaining actively involved … software development, architecture, database management and team leadership. You'll play a key role in designing scalable enterprise solutions for a 1,000-user organisation and work closely with senior stakeholders to deliver technology that drives the business forward. Key Responsibilities Lead the design of enterprise-wide software architecture ...

Agile ceremonies, including sprint planning, backlog refinement, stand-ups, and retrospectives. Produce and maintain technical documentation within Confluence. Contribute to continuous improvement initiatives across development processes, tooling, and code quality. 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/CD pipelines. Maven. JUnit and automated testing frameworks. Git source control. Agile development methodologies (Scrum/Kanban). Jira ...

gender expression, disability, origin, religious belief and sexual orientation or any other criteria. Software Engineer – Edenred PayTech Location: London/Swindon Department: Technology & Product Development About Edenred PayTech Edenred PayTech is a leading global e-money institution, processing over €100bn in payments annually across more than 30 countries. … contribute to the design, implementation, and maintenance of new features and platform enhancements. You will work as part of a collaborative team, following best development practices to deliver high-quality software that meets business needs. Key Responsibilities Participate in the design, development, and testing of platform features adhering ...