301 to 325 of 453 API Design Jobs

Senior Full Stack Software Engineer

Location
Glasgow, Scotland, United Kingdom
platform into something scientists can drive — the services that schedule and execute runs across racks of robotic hardware, and the interfaces chemists use to design, launch, and monitor experiments. You will partner with firmware, hardware, manufacturing, and chemistry teams, and own meaningful slices of the platform end to end. … real-world robotic platform sounds like the right shape of job for you, we’d love to welcome you to our team. Key Responsibilities Design, build, and ship full-stack features across backend services and web front-ends, owning them from spec to production. Build and harden the systems ...

AI & Agentic Technical Delivery Lead

Hiring Organisation
Hackajob Ltd
Location
London, United Kingdom
Employment Type
Permanent
Accenture Song accelerates growth and value for our clients through sustained customer relevance. Our capabilities span ideation to execution: growth, product and experience design; technology and experience platforms; creative, media and marketing strategy; and campaign, content and channel orchestration. With strong client relationships and deep industry expertise, we help … cases, and real consequences when something went wrong. You have led engineering teams — hands-on enough to review a pull request and challenge a design decision, senior enough to set the technical direction and make it stick. You know how development teams work from the inside, which means ...

IT Software Engineer Developer

Location
Wolverhampton, England, United Kingdom
contribute to technical decisions within a collaborative team. Key Responsibilities Develop and maintain web applications using Next.js/React, focusing on performance and scalability. Design and build integrations between applications, APIs, and databases, particularly using MySQL. Write clean, maintainable, well-tested code using JavaScript, TypeScript, and C#. Take ownership … features from design through to deployment and support. Participate actively in code reviews both giving and receiving constructive feedback. Support and mentor more junior members of the team where appropriate. Report to and work closely with the Lead Software Engineer to meet project goals and timelines. This ...

Senior Scala Engineer

Location
Greater London, England, United Kingdom
Front End Attribute Reputation services (APIs) to Digital services to provide attribute insights for fraud detection and prevention across client. This work involves: Help design a future vision for our Att Rep services, including consolidation, to allow us to provide a consistent and easy to use experience for users. … maintenance efforts through incremental re-architecting - eg reducing the number of technologies that are required to support the pipeline & using managed services where appropriate. Design and develop clean functioning, testable code on the Back End, write effective APIs, develop and manage well-functioning databases and applications with security ...

Senior ML Engineer

Location
Greater London, England, United Kingdom
strong 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 ...

Remote Full Stack Software Engineer (Senior, Python / Rust / Go & React, Insurance)

Location
United Kingdom
Strong in a semi‐mainstream programming language (e.g. Python, Typescript, Rust, Go, etc) Proficient with frontend/GUI framework Good understanding of data processing, API design/integration, and system architecture Comfortable adopting new tools and technologies as needed — adaptability is more important than narrow specialisation security/… software for business critical, web‐based applications Build eye‐catching, functional, efficient, and reusable web and mobile‐based sites that drive these web applications Design, build, test, document and maintain APIs and integrations Ensure quality control using industry standard techniques such as automated testing, pairing, and code review Work ...

Senior Scala Engineer CGEMJP

Location
Greater London, England, United Kingdom
results; understand the value of iterative delivery Be evidence driven Advocate for 'doing the right thing' Help others understand your work through co-participatory design, pairing, demos and documentation Make complex look and sound simple Be kind, creative and convincing How we work: We favour: Breaking down a high … improvements for the greater good of CIP Working cross-discipline rather than adhering to tightly defined roles. Knowledge & experience Security clearance (SC-level) API design Data analysis Databases AWS suite experience Awareness of Site Reliability Engineering and support Skilled at returning services to good states in outage situationsUnderstands ...

Backend Software Engineer

Location
Greater London, England, United Kingdom
role in shaping the product, its value to customers, and the culture as the company grows. We're looking for someone who can design and build the distributed systems, storage infrastructure, and platform primitives that underpin the sensor integration product. You'll work across the full backend surface: from … stream processing and storage, to API design, data pipelines, and service architecture, in a Rust stack with Python at the platform API boundaries. You'll be responsible for building robust, well-abstracted systems that scale with the demands of a growing integration and customer base, with ambitions ...

Senior Backend Software Engineer

Location
Greater London, England, United Kingdom
platforms, and payment/money ledgers, while building infrastructure for automated policy management, granular admin controls, and seamless accounting system integrations Build at Scale: Design and develop robust, high-performance features and core services that support the company’s flagship product and serve a global customer base Solve Complex … large-scale engineering challenges, driving improvements in reliability, performance, and user experience Deliver Customer-Facing Solutions: Take end-to-end ownership of features—from design and development to deployment and operational support—ensuring exceptional quality and value for users Collaborate Across Teams: Work effectively as part of a global ...

Senior Java Backend Engineer: Microservices & Kafka Hybrid

Location
Glasgow, Scotland, United Kingdom
GlobalLogic in United Kingdom is seeking an experienced Backend Engineer to design and build robust, scalable microservices using Java 17+ and Spring Boot 3. You will work across the full backend stack — from API design through to production‐grade integration testing — using modern Java and Spring technologies. … will design REST APIs, implement event-driven solutions with Kafka, and collaborate with cross-functional teams. #J-18808-Ljbffr ...

Software Engineering Coach: Flexible (Domain-Driven Design, React Native + More)

Location
United Kingdom
Common languages/frameworks (e.g. Go, React, Kotlin, Java etc) Platforms, Tools and/or Databases (e.g. AWS, Docker, PostgreSQL) Test‐Driven Development REST API Design Leadership, Communication and Management (in the context of software teams). You’ll need to be able to give nuanced answers ...

Senior Software Engineer (Backend)

Location
Greater London, England, United Kingdom
money ledgers, while building infrastructure for automated policy management, granular admin controls, and seamless accounting system integrations. What You'll Do Build at Scale: Design and develop robust, high-performance features and core services that support the company's flagship product and serve a global customer base. Solve Complex … large-scale engineering challenges, driving improvements in reliability, performance, and user experience. Deliver Customer-Facing Solutions: Take end-to-end ownership of features—from design and development to deployment and operational support—ensuring exceptional quality and value for users. Collaborate Across Teams: Work effectively as part of a global ...

Wireless Protocol Software Engineer – System API configuration

Location
Fleet, England, United Kingdom
Overview Keysight is at the forefront of technology innovation, delivering breakthroughs and trusted insights in electronic design, simulation, prototyping, test, manufacturing, and optimization. Our ~15,000 employees create world‐class solutions in communications, 5G, automotive, energy, quantum, aerospace, defense, and semiconductor markets for customers in over 100 countries. Learn … quality solutions. This position sits at the intersection of protocol standards, software engineering, and system configuration APIs, within a multi‐site international environment. Responsibilities Design, develop, integrate, and optimize APIs for system‐level configurability . Validate 3GPP protocol configurations , with specific focus on RRC configuration . Support both ...

Senior Software Engineer (Backend)

Location
Greater London, England, United Kingdom
money ledgers, while building infrastructure for automated policy management, granular admin controls, and seamless accounting system integrations. What You'll Do Build at Scale: Design and develop robust, high-performance features and core services that support the company's flagship product and serve a global customer base. Solve Complex … large-scale engineering challenges, driving improvements in reliability, performance, and user experience. Deliver Customer-Facing Solutions: Take end-to-end ownership of features—from design and development to deployment and operational support—ensuring exceptional quality and value for users. Collaborate Across Teams: Work effectively as part of a global ...

Senior Product Engineer (Backend-Leaning Fullstack)

Location
United Kingdom
Next.js/similar) when the work calls for it. Angular & Vue experience is fine! You build for mobile without building the mobile app. You design APIs and services that serve mobile clients beautifully, accounting for offline, network, battery, and app-release realities and are able to partner closely with … mobile engineers. You own features end-to-end. From API design and data modelling to web frontend implementation, deployment, and post-launch iteration. You're a proactive collaborator. You ask the right questions, propose solutions, and work effectively with teammates whose depth complements yours, including mobile, design ...

Senior Scala Engineer

Location
Greater London, England, United Kingdom
improvements for the greater good of CIP Working cross-discipline rather than adhering to tightly defined roles. Knowledge & experience Security clearance (SC-level) API design Data analysis Databases AWS suite experience Awareness of Site Reliability Engineering and support Skilled at returning services to good states in outage situations … build it you run it team Experience coding in continuous integration context Skills & technologies Essential: Scala Play or other MVC/Rest API frameworks SQL AWS Suite Continuous Integration Agile methodologies Desirable: Containerisation principles/Docker Jenkins Kibana Grafana Airflow #J-18808-Ljbffr ...

Software Engineer

Location
Derry/Londonderry, Northern Ireland, United Kingdom
sales colleagues to understand what we are building and why. What you’ll do Ship features end-to-end using AI agents, from design through to production. Take ownership of components and projects without needing constant direction. Contribute to code reviews and architectural discussions. Maintain and improve the engineering … more senior responsibilities as you develop and the team expands. What we need from you Strong technical fundamentals. Comfortable across front-end, back-end API design, and database work. Can understand and create production quality experiences with technical and customer minded care. Ability to work independently. ...

Software Engineer

Location
Derry and Strabane District, Northern Ireland, United Kingdom
sales colleagues to understand what we are building and why. What you will do Ship features end-to-end using AI agents, from design through to production. Take ownership of components and projects without needing constant direction. Contribute to code reviews and architectural discussions. Maintain and improve the engineering … more senior responsibilities as you develop and the team expands. What we need from you Strong technical fundamentals. Comfortable across front-end, back-end API design, and database work. Can understand and create production quality experiences with technical and customer minded care. Ability to work independently. ...

Lead Software Engineer - Umbraco

Location
Greater London, England, United Kingdom
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 ...

Senior Software Engineer

Location
Newcastle upon Tyne, England, United Kingdom
future of technology and be at the forefront of innovation? Join our dynamic team as a Full Stack Software Engineer, where you’ll design, develop, and maintain scalable software solutions in a collaborative and creative environment. This is your chance to work with cutting-edge technology, grow your skills … solutions. Technical Skills Strong understanding of Microsoft Azure services for cloud-based development. Knowledge of web security, RESTful Web Services and RESTful architecture and API design principles. Experience with modern unit testing frameworks and methodologies. Deep knowledge of software engineering concepts such as design patterns, SOLID principles ...

Principal Solutions Architect, Technology Sales Lead (AWS)

Location
Greater London, England, United Kingdom
technical win strategy, lead client‐facing deep-dives alongside AWS SAs, and remove the objections that decide competitive deals. Reference architectures that become standards: design the architectures that anchor our joint AWS solutions and get reused across pursuits. Contribute to AWS Partner Central and establish the patterns delivery teams … Amazon Marketing Cloud (AMC), AWS Clean Rooms, data lakes, analytics pipelines Customer Experience: Amazon Personalize, Amazon Connect, serverless architectures Modern Applications: Lambda, Step Functions, API Gateway, container orchestration Integration: Event-driven architectures, microservices, API design How Success Looks Technical win rate on the strategic pursuits you lead ...

Lead Server Engineer New Salford Quays

Location
Salford, England, United Kingdom
collaboration with Architects, The technical implementation decisions are yours to own. You will be working in a cross-functional team alongside mobile, web, QA, design and product, coaching the engineers around you and taking a leading role in refinement, planning and reviews. You’ll be the client’s main … rest of the team works to. Set projects up from scratch, including repositories, CI/CD pipelines, environments and infrastructure as code. Own API design, data modelling and third-party integration, and the contracts between your services and the teams that consume them. Own non-functional requirements, covering ...

Lead Software Engineer - Umbraco

Hiring Organisation
TPXImpact Holdings Plc
Location
United Kingdom
Employment Type
Permanent
Salary
£60,000
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 ...

Junior Software Developer

Location
Greater London, England, United Kingdom
frontend) and Node.js (backend). Build and integrate backend services and APIs using Python with a web framework (e.g. Django, Flask, or FastAPI). Design, query, and manage relational and NoSQL databases (PostgreSQL, SQL, MongoDB). Work on machine learning tasks including object detection, model training, and deployment. Deploy … detection, model training, and deployment (not just coursework or personal projects). Cloud: Basic working knowledge of AWS. Nice to have Exposure to REST API design and integration. Familiarity with version control (Git). Understanding of basic DevOps or CI/CD concepts. Role details Job title: Junior ...

Technical Lead (Portal & Applications)

Hiring Organisation
Lightfoot
Location
Exeter, Devon, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
approach into a repeatable team capability. Building security and observability into the platform from the start. Developing the technical capability of the team through design reviews, mentoring and hands-on leadership. You’ll also line-manage the team and remain accountable for delivery. Those things matter, but the reason … engineering. You won’t be asked to spend six months choosing a stack. The interesting decisions are the ones underneath it: service boundaries, API design, migration sequencing, testing strategy, engineering standards, secure-development practices, observability and how agentic development works across a team. One important constraint: our database ...