26 to 50 of 107 API Development Jobs in the UK

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 ...

integration testing) Participate in code reviews and contribute to engineering best practices Integrate with internal and third-party banking systems and APIs Ensure all development meets security, compliance, and regulatory standards Troubleshoot, debug, and optimise existing applications Required Skills & Experience Strong commercial experience in Java development (Java … working within banking, financial services, or a regulated environment Proficiency with Spring Boot and/or Spring Framework Experience with microservices architecture and RESTful API development Strong understanding of SQL and relational databases Familiarity with CI/CD pipelines and DevOps practices (Jenkins, GitLab, Azure DevOps) Experience with ...

live applications and production environments Technical Skills: Creativity & Problem-Solving Adaptability & Flexibility Able to use AI tooling (CoPilot, Devin, Etc) to accelerate application and API development. Able to guide, analyze, correct, explain, and improve AI output. Aptitude for technology; curiosity, passion and startup mindset Practical application and understanding ...

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 … testing frameworks (e.g. Mocha, Jest, Cypress) We appreciate you may not be an expert in every area above - we can support with training and development in some areas! xcunqrw Please do make an application and we will identify where we can best support your growth specific to your application. ...

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 ...

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 ...

Senior Backend Engineer - API, Python, Nextjs, Node, AI, Workflow Automation I am seeking a Senior Backend Engineer who thrives on solving complex operational challenges at scale. This isn't a feature factory role, it's about designing the Back End systems that automate workflows, improve reliability, and enable … teams. Experience with workflow engines, event-driven architectures, AI integrations, or automation platforms would be an advantage but isn't essential. Key Technologies: Python API Development/Architecture AI Workflow Automation SQL CI/CD Nextjs Nodejs This is a full time role offering a very competitive salary ...

product from the ground up. This is an opportunity to work on a genuinely interesting product where you'll have ownership across the entire development lifecycle, helping shape both the user experience and the underlying platform architecture. The Opportunity: We're looking for a Full-Stack Developer with strong … ease. As a Full-Stack Developer, you'll contribute across the full technology stack, from creating intuitive React interfaces and workflow builders through to API development, database design and security-focused architecture. What You'll Be Doing: Building and enhancing full-stack features using Next.js, React and TypeScript ...

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 … testing frameworks (e.g. Mocha, Jest, Cypress) 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. ...

helping us continue to improve our digital services. What will you bring to the role? Proficiency in React, TypeScript, .NET/C# and REST API development. Solid full-stack skills with experience in front-end frameworks, APIs and back-end services; familiarity with cloud-native patterns. Experience using source ...

providing Next Gen Engineering Services dedicated to transforming businesses. Our services span all facets of Digital Transformation, DevOps & Cloud, Integration, Automation, Low Code Application Development and AI-enabled services. Sandhata is a privately held IT services company with bases in the UK and India operating worldwide to help clients … strong Python engineering with DevOps enablement and hands-on integration of LLM technologies into secure, scalable enterprise environments. The ideal candidate will bring practical development and platform engineering experience, strong DevSecOps skills, and the curiosity to solve emerging engineering challenges in this rapidly evolving Gen AI space. Key Responsibilities ...

solutions providing market-leading services for our colleagues, customers and advisers. What you'll do The Engineer is responsible for the design and development of strategic software solutions, ensuring that requirements are met, best practices are followed and that all software developed is of a high quality and robust … nature. Working with Project Managers, Product Owners, Architects, Business Analysts and Testers the successful .Net Engineer will share responsibility for project feasibility, requirements, design, development, quality and delivery. They will need to work positively and effectively within teams of mixed abilities and experience and be adaptable within changing environments. ...

maintainable code Working with shared/common government tech stacks (Node.js, PostgreSQL, Redis) Investigating and resolving technical issues across the stack Applying secure development practices, including OWASP principles and vulnerability management Collaborating with stakeholders and communicating technical concepts clearly Tech stack includes: Node.js, HAPI (web framework) API development … DevOps, Jenkins, GitHub Actions) Jira and Azure DevOps for workflow management What we're looking for: Active SC Clearance (essential) Strong experience with Node.js development in production environments Ability to communicate with both technical and non-technical stakeholders Experience breaking down work, refining backlog items, and defining acceptance criteria ...

full stack in a modern cloud environment, building products that genuinely help people develop and progress? We're working with an ambitious training and development company that is reshaping how organisations deliver learning. As their platform continues to scale, they're looking to hire an Intermediate Software Engineer with …/CD & Version Control: Git-based workflows and automated pipelines What We're Looking For 2-4 years' commercial software development experience Strong hands-on experience with Node.js and API development Solid frontend experience with React Exposure to cloud infrastructure, ideally AWS Experience working with relational ...

develop new functionality and make non-functional improvements to our products and services. Understand business requirements and how they translate into technical design and development projects and tasks. Participate in architectural and design discussions and diagnose and troubleshoot complex technical issues Work with stakeholders to progress and report … projects and tasks Building Voice Agents: Developing and maintaining our Go-based Voice Agent API Development: Contributing to our unified AI API that acts as the gateway between our telephony products and various AI providers Tool Creation: Developing "Tools" (Function Calling) that allow LLMs to interact with ...

seeking Software Engineers and Senior Software Engineers to support the delivery of secure, scalable, and resilient digital services. You will contribute to the design, development, testing, and deployment of software solutions while collaborating with multidisciplinary teams in an agile environment. Senior Software Engineers will also provide technical leadership, guide … integrate secure APIs and Back End services. Participate in solution design and technical discussions. Support testing, deployment and operational activities. Follow secure software development and DevOps practices. Essential Skills & Experience (Must Have) Java Spring Boot Kafka MongoDB API development and integration Basic understanding of Docker images ...

contact center solutions Build and manage contact flows, IVR, routing strategies, queues, and agent experiences (CCP/UI) Develop backend integrations using AWS Lambda, API Gateway, DynamoDB, S3, Kinesis, & REST APIs Implement AI/ML-driven automation using Amazon Lex, Contact Lens, Transcribe, Kendra services Support CI/… consulting support Essential skills/knowledge/experience: Strong hands-on experience with Amazon Connect (flows, routing, integrations) Proven experience with AWS services: Lambda, API Gateway, DynamoDB, CloudWatch, S3 Proficiency in Node.js/Python/JavaScript and REST API development Solid understanding of contact center technologies ...

production systems and own their reliability Tech Stack Skills: Language: C# on .NET (primary, and what youll write every day) Frameworks: ASP.NET Core (Web API), Azure Functions (isolated worker) Database: SQL Server, accessed via Entity Framework Core and/or Dapper (youll write queries, design schemas, and optimise performance … foundation . The Azure-specific skills can be learned on the job. Requirements: You Must Have 7+ years professional software development experience, primarily in C#/.NET, including time leading, mentoring, or coaching other engineers People leadership: youve coached, mentored, or line-managed developers, and you get satisfaction from ...

solutions providing market-leading services for our colleagues, customers and advisers. What you'll do The Engineer is responsible for the design and development of strategic software solutions, ensuring that requirements are met, best practices are followed and that all software developed is of a high quality and robust … nature. Working with Project Managers, Product Owners, Architects, Business Analysts and Testers the successful .Net Engineer will share responsibility for project feasibility, requirements, design, development, quality and delivery. They will need to work positively and effectively within teams of mixed abilities and experience and be adaptable within changing environments. ...

Title: Python Developer - Onsite in Bristol 3x per week Job Description We are seeking a talented Python Developer with strong experience in backend development and API design using FastAPI. This role involves working with Pydantic for schema validation and SQLite for lightweight relational data storage, requiring an ability … maintainable, and well-tested code. Optimise application performance, scalability, and reliability. Troubleshoot production issues and support root cause analysis. Conduct code reviews and enforce development standards. Essential Skills Strong experience with backend development using Python. API design and development using FastAPI. experience with Pydantic for schema ...

/.NET, TypeScript or C++. Strong AWS and cloud-native engineering experience. Experience with Docker, Kubernetes and event-driven architectures. Strong backend engineering and API development experience. Experience building scalable distributed systems. Strong engineering mindset with a passion for modern technologies and AI tooling. Highly Desirable Commodity trading ...

robust error handling, retry logic, and graceful degradation strategies Monitor system performance and optimize bottlenecks to ensure sub-second latency for critical monitoring operations API Development Develop secure, well-documented RESTful APIs that allow users to integrate our monitoring tools into their workflows Implement authentication, authorization, and rate … protect users data and ensure fair resource usage Build webhook systems and real-time notification services to alert users about critical safety events Design API interfaces that are intuitive for developers while remaining flexible for diverse user use cases Design and implement integrations with Security Information and Event Management ...

Principal Engineer (Payments) Our long-term trusted partner, a leading financial services corporation, is hiring a Principal Engineer to drive the development and design of several greenfield retail banking platforms as our client continues on their digital transformation journey. This is a senior leadership position where the chosen engineer … product roadmaps, focus on architectural challenges, and provide hands-on technical leadership to a team of engineers. Your responsibilities will include: Lead the development and implementation of a modern cloud foundation and data platform that is robust, scalable, fully automated, secure, and can support the growth of the business. ...

Azure CLI used regularly for automation, operational tasks, and reducing manual intervention. Azure Integration Services: proficient in Logic Apps, Service Bus, Event Grid, and API Management for integration design and implementation. API Development: solid experience with SOAP and REST APIs, including design, development, and secure management. … Summer event and 4 sponsored weekends a year. If you’re an Azure Cloud Engineer looking for a career defining opportunity with progression and development, then please drop Lee at MARS an application. MARS Recruitment is an equal opportunities employer and positively welcomes applications from suitably qualified applicants regardless ...