126 to 150 of 201 API Design Jobs in the UK

Miratech retains nearly 1000 full-time professionals, and our annual growth rate exceeds 25%.Job DescriptionWe are looking for a Full Stack Engineer to design, develop, and support scalable cloud-native applications that power Workforce Management (WFM), Customer Experience (CX), and operational business processes. You will use Java … where appropriate for supporting components. The role suits a hands-on engineer with strong software development fundamentals who can take features from detailed technical design through implementation, testing, deployment, and production support. Experience with Workforce Management (WFM), Customer Experience (CX), or contact center solutions is an advantageResponsibilities:Design ...

Solution Architects and the Mulesoft team to implement MuleSoft's AnyPoint platform-based Integrations in order to support business requirements. The MuleSoft Developer will design, build, and maintain integrations for multiple on premises and cloud systems and must be capable of understanding business requirements, working with various business … DescriptionKey Responsibilities: Develop Integration Solutions Using MuleSoft SoftwareProvide technical expertise in large, complex environments. Individual will be responsible to provide: Detailed requirements analysisSoftware/API designDevelopment of API'sDevelopment and execution of Testing StrategiesDeployment of API's using the companies CI/CD toolingProduction support for MuleSoft ...

Time (Hybrid)We are looking for a hands-on Principal Engineer to join our Core AI Services team. In this role, you will help design, develop, and scale AI-enabling platform services and public APIs that are secure, reliable, and cloud-native. These services will act as foundational building … patterns and practices, eager to translate emerging tech into reliable, enterprise-ready software. Key Responsibilities: Serve as the technical authority for core services owning design, reliability and performance. Build scalable, fault-tolerant cloud-native services on Microsoft Azure, ensuring high performance and reliability. Develop secure, well-documented public APIs ...

architecture of key strategic initiatives across Fourth. Working as an embedded member of delivery teams, you will provide hands-on architectural leadership, helping engineers design, build and evolve scalable, maintainable and resilient software solutions. You will apply Fourth's application architecture standards, patterns and engineering principles, whilecontributing to their … practical delivery experience.· Produce architectural designs, decision records, and technical documentation that clearly communicate solution intent and support long-term maintainability.· Participate in architecture, design, and code reviews, providing constructive feedback and helping ensure consistency with established architectural principles.· Collaborate with business, product, engineering, and fellow architects to understand ...

ship. QualificationsWhat we're looking forAround eight years or more building and running production software, with real depth in Python/Django REST API design, data modelling and service reliability. You have set technical direction for a team: chosen the approach, written it down, defended it, and changed … when you were wrong. Strong on performance, cost and observability. You have owned the pager as well as the design doc. Genuinely fullstack — comfortable in React and able to raise the bar on frontend work you do not write yourself. You raise other people's standards. Review, pairing ...

Development Life Cycle including Requirements Elicitation, Application Architecture definition and Design. You will play an important role in creating the Architecture and high-level design artifacts. You will also do technical feasibility and identify smart ways of completing client's requirement. You will guide the team technically and work … with an Agile teamPreferred Message-oriented-middleware (Kafka, AMQP, MQ, AMPS, etc.) experience Distributed systems experience Web Application development (JavaScript, AngularJS, Bootstrap, etc.) Rest API design and development DDD/CQRS/Event sourced systems experience Relevant industry (banking middle/back office) experience Experience in scripting languages ...

Service Operations, Data & Analytics, Security & Quality Compliance, Transformation, Application Development, and Enterprise Platforms. Job Overview Key Responsibilities Architecture and technical strategy Contribute to the design and architecture of core platform components and evaluation systems, making the load-bearing technical decisions and bearing accountability for their reliability, scalability, and long … capabilities are built, evaluated, and deployed across the company, and define a coherent platform vision that scales beyond your immediate team. Design reusable abstractions, SDKs, and services for model integration, prompt management, experimentation, and deployment that establish organization-wide patterns and reduce duplicated effort. Research and delivery excellence Help ...

C# and WebAPIProficiency in writing object-oriented code that is clear, robust, efficient, high-performing, testable, extendable, and well-encapsulatedA deep understanding of proper API design principles, coupled with experience in REST/JSON interfacesFamiliarity with MySQL databases, Memcached, RabbitMQ, and Ceph would be advantageousPrior experience in developing ...

architecture strategies that deliver secure, governed, and high-performing data platforms that create real business impact About our TeamThe TIO Architecture Team is the design and architecture function of Elsevier's Technology Infrastructure and Operations organization and is responsible for architectural design and consultancy across a multitude … both AI developer tooling and end user GenAI technologies).About the RoleThis Solution Architect role is an exciting opportunity to lead the design and evolution of Elsevier’s Operational Data Platform. You will work alongside an embedded engineering team to architect Snowflake-based data warehouse solutions and related systems ...

designing and implementing APIs and integrations within complex digital ecosystems, including CRM, payment and marketing platforms. Database and data management. Strong expertise in database design and efficient querying in the context of web applications. Cloud and deployment. Practical experience with cloud platforms and managed hosting, particularly Azure and Umbraco … .NET practice Umbraco Cloud, or equivalent managed hosting experience, including environment strategy and deployment workflow Major version upgrade planning and delivery on live platforms API design and consumption, REST and GraphQL, including third-party integrations SQL Server and efficient data querying in a web application context Modern front ...

following key skills: - At least three years commercial scala programming - Strong framework experience (Akka, Play etc) - Relational database experience - PostgreSQL - MongoDB, NoSQL - RESTful API design and integration experience - Solid unit test understanding - Spec2, scalaTest etc - Experience working in a TDD/BDD driven environment - Containerization experience - Docker, Kubernetes … well-established friendly team then please apply now to be considered and for further details. Scala Developer Up to £85,000 Scala, REST Api, NoSQL, TDD/BDD, functional programming, CI/CD, Play, Akka ...

following key skills: - At least three years commercial scala programming - Strong framework experience (Akka, Play etc) - Relational database experience - PostgreSQL - MongoDB, NoSQL - RESTful API design and integration experience - Solid unit test understanding - Spec2, scalaTest etc - Experience working in a TDD/BDD driven environment - Containerization experience - Docker, Kubernetes … well-established friendly team then please apply now to be considered and for further details. Scala Developer Up to £85,000 Scala, REST Api, NoSQL, TDD/BDD, functional programming, CI/CD, Play, Akka ...

will bring expertise in full stack development using JavaScript or TypeScript, Node.js, and React or Angular , together with strong knowledge of systems architecture, API design and databases. You will also understand the importance of observability, monitoring, testing, performance, security, accessibility and modern DevOps practices. You are comfortable working ...

emphasis on defining the future product and platform experience, patterns, and contribution pathways that will enable federated scale over time. ML Engineers – Responsibilities & SkillsResponsibilities* Design and build MCP servers and tools that expose enterprise systems and workflows to AI agents.* Implement Skills that orchestrate tools, data, and reasoning into … repeatable, governed workflows.* Contribute to the LSEG AI Assist agentic harness, including planning, tool‐calling, and orchestration logic.* Build secure API wrappers where backend systems lack suitable authentication or entitlement models.* Work closely with product teams in a "build for" capacity, transferring knowledge and establishing reusable patterns.* Shape ...

Cloud and Order Management capabilities to support Heathrow's retail and service operations. You will define technical standards, ensure best practices, and guide the design of integrated solutions that enhance customer experience and operational efficiency. Success in this role means delivering secure, scalable, and high-performing platforms that enable … with expertise in Commerce Cloud and Order Management. Strong understanding of Salesforce platform architecture, integration patterns, and security best practices. Hands-on experience with API design, data modelling, and system integrations. Excellent stakeholder management and communication skills. Ability to lead technical discussions and influence decision-making at senior ...

products (e.g., Concierge an agentic AI workflow tool, Prism a Mercer knowledge fabric for scheme data, and similar initiatives), from problem framing and design through build, release, and support. Translate risk advisory/consulting needs into clear technical requirements, user stories, and solution designs; partner with stakeholders through … Proven experience as a Tech Lead/Lead Engineer delivering production software, including hands-on coding and code review ownership. Strong backend engineering skills (API design, data modelling, performance) and experience building secure, role-based applications. Experience working directly with business stakeholders in a financial firm, with ...

systems. As a CesiumAstro software team member, you will be responsible for software designs from concept through production, including product roadmaps, block diagrams, detailed design and coding, analysis, test, qualification, and in-orbit support. The ideal candidate will have development experience at nearly every level of the software stack … experience in software testing and high-reliability qualification, as well as software engineering and software project management practices. The successful candidate will present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills ...

proven individual approach into a repeatable team capability. Building security and observability in from the start. Developing the team’s technical capability through design reviews, mentoring and hands-on leadership. You’ll also line-manage the team and remain accountable for delivery, but the reason we’re hiring … agentic development as a normal part of engineering. You won’t spend six months choosing a stack. The interesting decisions sit underneath: service boundaries, API design, migration sequencing, testing strategy, engineering standards, secure-development practices, observability and how agentic development works across a team. One constraint: our database ...

what they contribute. To learn more about CIBC, please visit CIBC.comJob PurposeThe Senior Director, Global Markets Data & AI Engineering will lead the strategy, design, and delivery of data, analytics, and AI engineering capabilities for Global Markets. This role is accountable for building scalable, secure, and compliant platforms that support … analytics platformsHands-on experience with kdb+/q, Spark, Kafka, dbt, Airflow, or similar technologiesExperience leading platform transformation or modernization programmesTechnical SkillsPython, Rust, SQL, API design and distributed computing. Long-horizon agentic platforms, agent memory systems, agentic RAGKubernetes, Docker, CI/CD pipelinesData engineering, orchestration, and observabilityAI/ ...

joining an established team where you’ll have the opportunity to work alongside other Junior and experienced developers, contributing to the design and development of new applications and features, and help maintain and improve existing systems. Responsibilities: Develop, test, and deploy efficient, scalable, and maintainable applications using C# … . 2 – 5 years of professional experience in backend development. Strong proficiency in C# and .NET Core (latest versions). Solid understanding of RESTful API design and integration. Familiarity with CI/CD pipelines and Git for version control and continuous integration. Excellent problem-solving and analytical skills ...

chain, finance). Ability to speak the language of business leaders and connect operational bottlenecks to strategic AI solutions.Software/Data Engineering: Python proficiency, API design, SQL, data integration, and ML/AI libraries (PyTorch, TensorFlow, scikit-learn, XGBoost, Hugging Face Transformers).Agentic AI Systems: Hands-on experience … Earth Is Our Future—drive every decision.About Us:Celonis is the trusted platform to industrialize Enterprise AI, empowering organizations to analyze, design, and operate AI-driven processes. The Celonis Platform is powered by the Celonis Context Model, which combines process data, business knowledge, and intelligence to create a living ...

finance). Ability to speak the language of business leaders and connect operational bottlenecks to strategic AI solutions. Software/Data Engineering: Python proficiency, API design, SQL, data integration, and ML/AI libraries (PyTorch, TensorFlow, scikit-learn, XGBoost, Hugging Face Transformers).Agentic AI Systems: Hands-on experience … Earth Is Our Future—drive every decision. About Us: Celonis is the trusted platform to industrialize Enterprise AI, empowering organizations to analyze, design, and operate AI-driven processes. The Celonis Platform is powered by the Celonis Context Model, which combines process data, business knowledge, and intelligence to create ...

Inside IR35 12 month contract ASAP start date Hybrid - as and when required in London (infrequent travel) Skillset: Background in Software Architecture API design (REST is preferable). ++ Designing for use with User Interfaces would be a plus. Event-driven architecture patterns Familiarity with AWS and Kubernetes ...

with wealth management platforms such as FNZ, Avaloq, SimCorp, or similar systems Knowledge of financial markets, investment products, and portfolio construction principles Familiarity with API design and integration patterns in financial services Experience with user research methodologies and customer journey mapping Understanding of modern web technologies and their ...

with wealth management platforms such as FNZ, Avaloq, SimCorp, or similar systems Knowledge of financial markets, investment products, and portfolio construction principles Familiarity with API design and integration patterns in financial services Experience with user research methodologies and customer journey mapping Understanding of modern web technologies and their ...