17 of 17 API Design Jobs in Slough

What you'll do: Technical Leadership & Strategy Define and drive the technical vision, architecture, and roadmap for both desktop and backend services. Lead architectural design sessions, ensuring scalable, secure, and maintainable solutions. Champion engineering best practices, including early-stage quality planning (Shift Left), design patterns, automated testing … assisted coding, cross-platform frameworks) to improve productivity and product innovation. Application Development & Delivery Lead the development of complex WPF-based applications following modern design patterns such as MVVM, leveraging data binding, templating, and modular architecture. Oversee and contribute to the implementation of scalable backend services, APIs, and libraries ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … . Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment: flexible engagement ...

Location: London, UK | Contract Role About the Role: We are seeking an experienced Cloud Native Developer with strong Python skills and AWS expertise to design, develop, and maintain scalable APIs and data solutions. Key Responsibilities Develop Cloud-Native APIs on AWS using Python and TDD. Design and maintain … API contracts, ensuring version compatibility. Create low-level architecture diagrams and technical documentation. Implement secure coding practices and Python best practices. Required Skills 5+ years of experience with AWS API Gateway, Lambda, Glue using Python 3 (Java is a plus). Strong Python programming skills (OOP & functional). ...

Senior API Technical Consultant (GraphQL Specialist) Design and build next generation of high-scale SaaS platforms. We're looking for a senior/lead engineering consultant with deep expertise in GraphQL to take a leading role in developing our robust TypeScript/Node.js backend. You will be instrumental … evolution of our APIs, ensuring our services are resilient, scalable and secure within a cutting-edge, cloud-native environment (Helm, Kubernetes). The Deliverables Design and build sophisticated, scalable GraphQL APIs and backend services using TypeScript and Node.js. Lead the design and evolution of our API schemas ...

seeking a foundational engineer to own our single greatest strategic asset: our unique, privileged access to network-level intelligence via the GSMA CAMARA API standard. This is our "right to win", and you will be the engineer responsible for building the bridge to it. You will be the Critical … build the Security Signal Ingestion path, the secure, low-latency, and out-of-band data channel connecting to our founding members' network API gateways. Architect and implement a carrier-agnostic, vendor-agnostic connector layer to consume RESTful APIs from a heterogeneous global landscape of telco partners and IMS vendors ...

Service (PaaS) environment. What You'll Be Doing: Own architecture and technical decisions across squads; accountable for how software is built and shipped. Design and develop distributed, scalable microservices (C# .NET Core or Node.js) and REST/JSON APIs. Build modern React + TypeScript UIs with component-driven design, advanced state management, and reusable frameworks. Leverage AWS services (Lambda, API Gateway, SQS/SNS, Step Functions, S3, IAM) to deliver secure, event-driven systems. Embed testing-first practices (TDD/BDD, contract tests, Jest/RTL, Playwright/Cypress, xUnit/NUnit) to raise code quality. Implement ...

full-stack applications using React Work with Docker, Kubernetes, AWS/Azure Model workflows with Camunda/BPMN (or learn on the job) Design and optimise data models in PostgreSQL and MongoDB Support CI/CD, automation, and DevOps practices Collaborate with clients and internal teams; share technical expertise … Essential Experience Strong Java/Spring Boot engineering background Experience with microservices and modern API design Exposure to Docker, Kubernetes, and cloud environments (AWS) SQL/NoSQL experience (PostgreSQL, MongoDB) Strong communication and problem-solving skills Adaptable, proactive, and comfortable in a scaling organisation Security Clearance Requirements ...

project team. Engage with senior stakeholders to influence technology decisions and ensure architectural integrity. Provide architectural recommendations and oversee implementation strategies. Contribute to solution design, documentation, and governance processes. Support data migration planning, integration, and interoperability considerations. Ensure compliance with security, resilience, and performance standards. Essential Skills & Experience … flow diagrams). Hands-on experience with major cloud platforms (preferably AWS), including Infrastructure as Code, networking, and security. Deep understanding of secure system design, authentication patterns, and observability. Familiarity with languages such as Ruby, Python, or Java, and modern practices (CI/CD, TDD, containerisation). Proven ability ...

work across: Advanced theme builds using Liquid Hydrogen, Oxygen and modern Shopify frameworks Custom Shopify app development (Node/React or Ruby) API development and third-party integrations Performance optimisation for high-traffic storefronts Building reusable frontend components and design systems Technical scoping and solution design Code … Shopify developer Proven background in building and maintaining custom Shopify apps Strong knowledge of Liquid, frontend fundamentals and Shopify's latest tooling Understanding of API design, data structures and integration patterns Experience working on large-scale or high-growth ecommerce brands Confident in leading technically and supporting developers ...

What you will do: Architect Python backend systems (FastAPI, gRPC) and define technical standards Build complex APIs, data workflows, and external system integrations Lead design reviews, mentor engineers, and drive technical roadmap Productionise automation-generated code and workflow orchestration pipelines Collaborate with data platform, product and wider support teams … What you will need: 7+ years Python experience (FastAPI) Deep API design expertise (REST, gRPC) and SQL proficiency (PostgreSQL/MySQL) Track record building integrations (APIs) Experience owning a product end-to-end, and driving technical excellence Experience with CI/CD and cloud platforms (AWS/Azure ...

transformation. What You'll Lead Technical Ownership Act as the senior developer and architect for all systems powering stores, production, POS, loyalty, and website. Design and implement SOA, ensuring all retail and e-commerce systems integrate cleanly and scale reliably. Own CIAM, security rules, and token management (OAuth2/… site or high-traffic environments,. 8+ years in development/architecture, including 3+ years of hands-on technical leadership. Deep understanding of SOA, API design, cloud platforms, networking, and distributed systems. Proven experience integrating POS, WMS, CRM, loyalty, or similar retail systems. Experience with Adobe Commerce, Salesforce ...

South London Inside IR35 £600-650 per day We are looking for an experienced Technical Architect with a strong background in application and API architecture to support a major programme within a secure environment. This role requires proven experience across large-scale delivery, multi-cloud technologies, and senior stakeholder … engagement. Key Requirements Active SC Clearance (mandatory) Strong experience in application architecture and API design/integration Commercial experience in an AWS environment, with exposure to Azure components Background working on large, complex projects Experience supporting or leading procurement activities Strong communication and presentation skills Proven track record ...

solution and code interpreter Experience with Multi-agent system architecture (e.g., LangGraph, ToolUniverse) Experience with MCP tool integration and orchestration Experience with API design and integration Experience with tool wrapping and interoperability Experience with Error handling and debugging (agentic workflows, logs) Experience with Modular system design, performance ...

appropriate test coverage You are a Front-End specialist but you understand aspects of the full tech stack and can contribute meaningfully to API design and overall system architecture The Extras Working at Slice comes with a comprehensive set of benefits, but here are some of the unexpected ...

details Rely on data and customer feedback to guide decisions and prioritise effectively Being able to go into the details of API design, payment messages or whatever is required Are passionate about developing people and creating an inclusive, collaborative team environment Enjoy working in a fast-paced, constantly ...

details Rely on data and customer feedback to guide decisions and prioritise effectively Being able to go into the details of API design, payment messages or whatever is required Are passionate about developing people and creating an inclusive, collaborative team environment Enjoy working in a fast-paced, constantly ...

area of the codebase, but over time you'll work across multiple parts of the stack—from backend services to data pipelines and API design. This is an opportunity for someone who delivers high-quality code quickly, values well-structured architecture and knows when to be pragmatic. … Camden, 3–4 days per week. Tech Stack -> Python(Django) -> GraphQL -> Go -> Flutter -> Kubernetes -> DataDog -> GitLab What You'll Do -> Collaborate with Product, Design, and Engineering to solve real problems for users and internal teams. -> Build, test, and deploy new backend features with a focus on clean, scalable architecture. ...