1 to 25 of 36 API Design Jobs in the East of England

Staff Software Engineer

Hiring Organisation
Definely
Location
Watford, Hertfordshire, UK
Employment Type
Full-time
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 ...

Staff Software Engineer

Hiring Organisation
Definely
Location
Chelmsford, Essex, UK
Employment Type
Full-time
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 ...

Staff Software Engineer

Hiring Organisation
Definely
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
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 ...

Staff Software Engineer

Hiring Organisation
Definely
Location
Peterborough, Cambridgeshire, UK
Employment Type
Full-time
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 ...

Remote Senior Software Engineer

Hiring Organisation
Turing
Location
Stevenage, Hertfordshire, UK
Employment Type
Full-time
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 ...

Remote Senior Software Engineer

Hiring Organisation
Turing
Location
Peterborough, Cambridgeshire, UK
Employment Type
Full-time
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 ...

Remote Senior Software Engineer

Hiring Organisation
Turing
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
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 ...

Remote Senior Software Engineer

Hiring Organisation
Turing
Location
Watford, Hertfordshire, UK
Employment Type
Full-time
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 ...

Remote Senior Software Engineer

Hiring Organisation
Turing
Location
Ipswich, Suffolk, UK
Employment Type
Full-time
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 ...

Remote Senior Software Engineer

Hiring Organisation
Turing
Location
Bedford, Bedfordshire, UK
Employment Type
Full-time
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 ...

Remote Senior Software Engineer

Hiring Organisation
Turing
Location
Hemel Hempstead, Hertfordshire, UK
Employment Type
Full-time
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 ...

Senior Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
Shefford, Bedfordshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £500 per day
cross-functional teams of engineers, product managers, and designers. Build scalable, performant, and resilient backend systems that support critical business needs. Participate in system design and architecture reviews to influence technical direction. Drive software quality through code reviews, testing, and continuous integration. Contribute to a positive and inclusive engineering … culture through mentorship, knowledge sharing, and leadership at your level. Investigate and resolve complex technical issues in production environments. Author and review technical design documents, RFCs, and root cause analyses. Continuously learn and grow in your engineering craft and domain knowledge. Participate in an on-call rotation to ensure ...

Software Engineer

Hiring Organisation
Ocado Retail
Location
Hatfield, England, United Kingdom
build robust, scalable, and high-quality features that deliver an excellent experience for our valued supplier partners. What You’ll Do Full Stack Development Design, build, and maintain efficient, reusable, and reliable code across the full technology stack (front-end and back-end). Develop user-facing features … Developer, and other engineers to translate product requirements into technical solutions. Participate actively in the team's agile sprint-based workflow, from planning and design through to testing and deployment. Ensure all code and deployment artefacts align with Ocado Retail's technology standards, principles, and architectural vision. Contribute ...

Solutions Architect

Hiring Organisation
Method Resourcing
Location
St Albans, England, United Kingdom
Solutions Architect (Integration | API Design) St Albans (Hybrid) £90,000 + Bonus + Lucrative Shares Scheme Method Resourcing are proud to be partnering with a fast-growing, international technology business delivering critical services across multiple high-reliability sectors. They’re seeking a Solutions Architect to lead … technical design of mission-critical platforms and services. The Role: We’re seeking an experienced Solution Architect to design scalable, secure, and efficient technology solutions that support a major systems consolidation and migration programme. You will be responsible for planning and documenting the decommissioning ...

Senior Shopify Developer

Hiring Organisation
Pulse Recruit
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
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 ...

Senior Shopify Developer

Hiring Organisation
Pulse Recruit
Location
Watford, Hertfordshire, UK
Employment Type
Full-time
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 ...

Senior Shopify Developer

Hiring Organisation
Pulse Recruit
Location
Chelmsford, Essex, UK
Employment Type
Full-time
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 ...

Senior Shopify Developer

Hiring Organisation
Pulse Recruit
Location
Stevenage, Hertfordshire, UK
Employment Type
Full-time
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 ...

Senior Shopify Developer

Hiring Organisation
Pulse Recruit
Location
Bedford, Bedfordshire, UK
Employment Type
Full-time
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 ...

Senior Shopify Developer

Hiring Organisation
Pulse Recruit
Location
Luton, Bedfordshire, UK
Employment Type
Full-time
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 ...

Senior Shopify Developer

Hiring Organisation
Pulse Recruit
Location
Peterborough, Cambridgeshire, UK
Employment Type
Full-time
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 ...

Senior Shopify Developer

Hiring Organisation
Pulse Recruit
Location
Norwich, Norfolk, UK
Employment Type
Full-time
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 ...

VP of AI Engineering & Platform Development

Hiring Organisation
AVEVA
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
external partners. We are specifically keen on individuals who have experience within start-up type environments. Key Responsibilities: Platform Services Development Drive the Execution, Design, and Build of Core AI services that are scalable, reusable, secure, reliable, and highly available. Ensure the Core AI Services (Orchestration, SDKs, etc. … entry. Engage with other execution leaders and collaborate with enablement teams to support Core AI adoption. Security, Compliance & Regulations Embed security and privacy-by-design practices into all services and APIs. Ensure compliance with global AI regulations and emerging governance frameworks. Establish processes for responsible AI, model explainability, observability ...

Senior ML Engineer/Data Scientist

Hiring Organisation
Quantori
Location
Stevenage, Hertfordshire, UK
Employment Type
Full-time
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 ...

Senior ML Engineer/Data Scientist

Hiring Organisation
Quantori
Location
Colchester, Essex, UK
Employment Type
Full-time
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 ...