301 to 325 of 350 API Design Jobs in England

ownership and contribute to software used in production from day one in a team where ideas are valued, shared, and acted upon where of benefit. What you’ll do Design, build, and maintain backend services and APIs in Python Collaborate with frontend and mobile engineers on end-to-end delivery Contribute to architecture and best-practice decisions across the … stack Write clean, maintainable, and well-tested code Essential experience Strong Python development skills Experience with Django (Flask/FastAPI are fine too) RESTful API design and integration Relational databases (PostgreSQL or similar) Git Worth noting: Whilst this is a backend role, you will need to have some light exposure to Javascript when required (purely for some ticketing More ❯

ownership and contribute to software used in production from day one in a team where ideas are valued, shared, and acted upon where of benefit. What you’ll do Design, build, and maintain backend services and APIs in Python Collaborate with frontend and mobile engineers on end-to-end delivery Contribute to architecture and best-practice decisions across the … stack Write clean, maintainable, and well-tested code Essential experience Strong Python development skills Experience with Django (Flask/FastAPI are fine too) RESTful API design and integration Relational databases (PostgreSQL or similar) Git Worth noting: Whilst this is a backend role, you will need to have some light exposure to Javascript when required (purely for some ticketing More ❯

Stack or Backend Developer to play a key role in shaping the backend of our next-generation B2C platform. You ll work closely with our front-end team to design and deliver robust, scalable APIs and infrastructure that power our consumer experience. Develop and maintain production-grade APIs and backend systems using Node.js . Leverage AI coding tools (GitHub … etc.) Optimize databases, authentication, and security for scale. Collaborate with front-end engineers to integrate APIs seamlessly. Extensive experience building high-traffic consumer applications . Strong understanding of RESTful API design, database optimization, and security . Proven AI-assisted development workflow. Nice to Have: React/Next.js, Azure, Payload CMS, microservices architecture. Contract: Full-time, initial term More ❯

the business. Responsibilities: Provide project and delivery assurance across key technology and business initiatives Evaluate strategic alignment and ensure execution aligns with business intent Assess third-party risks, including API design, governance, and integration points Review and challenge SLAs and performance measures to ensure commercial relevance Lead assurance reviews over technology platforms, applications, and infrastructure Apply data analytics … outcomes Technically curious and confident engaging with engineers, data scientists, and delivery leads Familiar with Agile, DevOps, project governance, and third-party management Knowledgeable about performance measurement frameworks and API-related risks Experienced in (or curious about) agentic AI, data visualisation, and analytics If you are ready to combine technical depth with strategic impact and provide insights that drive More ❯

the business. Responsibilities: Provide project and delivery assurance across key technology and business initiatives Evaluate strategic alignment and ensure execution aligns with business intent Assess third-party risks, including API design, governance, and integration points Review and challenge SLAs and performance measures to ensure commercial relevance Lead assurance reviews over technology platforms, applications, and infrastructure Apply data analytics … outcomes Technically curious and confident engaging with engineers, data scientists, and delivery leads Familiar with Agile, DevOps, project governance, and third-party management Knowledgeable about performance measurement frameworks and API-related risks Experienced in (or curious about) agentic AI, data visualisation, and analytics If you are ready to combine technical depth with strategic impact and provide insights that drive More ❯

the business. Responsibilities: Provide project and delivery assurance across key technology and business initiatives Evaluate strategic alignment and ensure execution aligns with business intent Assess third-party risks, including API design, governance, and integration points Review and challenge SLAs and performance measures to ensure commercial relevance Lead assurance reviews over technology platforms, applications, and infrastructure Apply data analytics … outcomes Technically curious and confident engaging with engineers, data scientists, and delivery leads Familiar with Agile, DevOps, project governance, and third-party management Knowledgeable about performance measurement frameworks and API-related risks Experienced in (or curious about) agentic AI, data visualisation, and analytics If you are ready to combine technical depth with strategic impact and provide insights that drive More ❯

Software Architect to join their fast-growing and dynamic team. This is an exciting opportunity to work on cutting-edge projects, collaborating with engineers, stakeholders, and business leaders to design and deliver high-impact software systems. Tech Stack: Frontend: Angular.JS/TypeScript Backend: Swift (Swift Vapor) Key Responsibilities Lead the architecture and design of complex, scalable software solutions. … Software Architect or Senior Engineering roles. Strong expertise with Angular.JS/TypeScript. Solid hands-on experience with Swift, ideally Swift Vapor for Back End services. Proven track record in API design and development. Excellent interpersonal and communication skills to engage with both technical and non-technical stakeholders. Package & Location Salary: 85,000 per annum + Benefits Location: Central More ❯

to £90,000 per annum, depending on experience Location: fully remote, with occasional visits to Basingstoke We are looking for a skilled Full Stack Software Engineer to design and develop cutting-edge products with a focus on Python , PostgreSQL and front-end development. You'd be working in a flexible, remote-first environment, tackling interesting and complex challenges within … visits to Basingstoke as needed. Qualifications & Skills required: 5+ years of Python development Strong understanding of database systems (e.g. PostgreSQL) 5+ years of front-end development and deployment RESTful API design and development Demonstrable clean, maintainable code practices What you'd be doing: Take ownership of designing and delivering new capabilities within existing systems Requirements gathering and programme More ❯

circa £80,000 to £90,000 per annum, depending on experienceLocation: fully remote, with occasional visits to Basingstoke We are looking for a skilled Full Stack Software Engineer to design and develop cutting-edge products with a focus on Python , PostgreSQL and front-end development. You'd be working in a flexible, remote-first environment, tackling interesting and complex … visits to Basingstoke as needed. Qualifications & Skills required: 5+ years of Python development Strong understanding of database systems (e.g. PostgreSQL) 5+ years of front-end development and deployment RESTful API design and development Demonstrable clean, maintainable code practices What you'd be doing: Take ownership of designing and delivering new capabilities within existing systems Requirements gathering and programme More ❯

with your front-end counterpart to ensure alignment across the stack, to support the firm's market-making business across ranging Equities, FX, Crypto & Commodities asset classes Lead the design, development, and maintenance of the infrastructure estate, microservices, web APIs, and the business logic delivery, keeping projects on track and within scope. Drive technical decisions and trade-offs balancing … the role, including all relevant regulatory and legislative training KEY SKILLS AND EXPERIENCE Strong expertise in Java, Spring Framework/Spring Boot, or related backend frameworks Solid understanding of API design, microservices, and distributed messaging architectures Solid experience in advocating for and mentoring other team members, promoting coding reviews, enforcing team conventions Track record in driving initiatives/ More ❯

across the stack, with strong front end focus (React, Angular, or Vue). Proficiency in building modern web applications from scratch (not only visualization layers). Strong skills in API design and integration. Experience (or strong demonstrable capability) in developing customer-facing AI-powered tools (chatbots, semantic search, or other LLM integrations). Familiarity with AWS cloud services More ❯

across the stack, with strong front end focus (React, Angular, or Vue). Proficiency in building modern web applications from scratch (not only visualization layers). Strong skills in API design and integration. Experience (or strong demonstrable capability) in developing customer-facing AI-powered tools (chatbots, semantic search, or other LLM integrations). Familiarity with AWS cloud services More ❯

across the stack, with strong front end focus (React, Angular, or Vue). Proficiency in building modern web applications from scratch (not only visualization layers). Strong skills in API design and integration. Experience (or strong demonstrable capability) in developing customer-facing AI-powered tools (chatbots, semantic search, or other LLM integrations). Familiarity with AWS cloud services More ❯

across the stack, with strong front end focus (React, Angular, or Vue). Proficiency in building modern web applications from scratch (not only visualization layers). Strong skills in API design and integration. Experience (or strong demonstrable capability) in developing customer-facing AI-powered tools (chatbots, semantic search, or other LLM integrations). Familiarity with AWS cloud services More ❯

across the stack, with strong front end focus (React, Angular, or Vue). Proficiency in building modern web applications from scratch (not only visualization layers). Strong skills in API design and integration. Experience (or strong demonstrable capability) in developing customer-facing AI-powered tools (chatbots, semantic search, or other LLM integrations). Familiarity with AWS cloud services More ❯

Technical Product Management Oversee integration and optimization of multiple DSPs, SSPs, and ad-serving technologies. Define technical requirements for real-time bidding systems handling billions of daily requests. Lead API product management across the AdTech/MarTech ecosystem. Design data pipelines and architecture for cross-platform campaign analytics. Ensure sub-100ms response times while maintaining 99.9% platform reliability. … least 3 years focused on programmatic advertising. Deep technical knowledge of: Programmatic ecosystem: DSPs, SSPs, DMPs, CDPs, and ad servers Real-time bidding protocols, header bidding, and auction dynamics API design, data pipelines, and system integrations Attribution methodologies and cross-device identity solutions Technical Platform Expertise Hands-on experience with major DSP platforms (e.g., DV360, The Trade Desk More ❯

integrating systems from acquired entities, ensuring architectural consistency and operational excellence across the group. Key Responsibilities Define and maintain the enterprise architecture vision and roadmap aligned with business strategy. Design and guide the implementation of scalable, integrated technology solutions across ERP, CRM, and financial systems. Lead integration initiatives, ensuring coherence and data integrity across platforms. Evaluate emerging technologies and … stakeholder management and influencing skills across business and technical domains. Proven experience with ERP, CRM, and financial systems (e.g., NetSuite, SAP, Microsoft Dynamics). Solid understanding of systems architecture, API design, and modern integration patterns. Knowledge of data architecture principles, governance frameworks, and integration methodologies. Ability to assess and recommend emerging technologies that drive efficiency and scalability. Experience … equivalent). Experience leading technical teams, external consultants, or project delivery functions. Proven success delivering enterprise transformation or multi-system integration projects exceeding £500k . Hands-on experience with API development , data migration , and system integration projects. Background in legacy system modernisation , particularly ERP transitions. Exposure to M&A technology integration (due diligence and post-acquisition) highly advantageous. Experience More ❯

and verbal), anticipate potential objections and persuade others to adopt the most appropriate view. Banking (retail) experience is preferred Experience of working in a highly regulated environment. Exposure to API design strategies both for internal and external customer usage Exposure to Cloud technologies. AWS Solution Architect certification - foundation level or higher Experience of working with service management teams More ❯

and deliver the solutions needed to build innovative products Evaluate, appropriately test, and debug your work, striving for high qualityKnowledge, Skills & Abilities: Strong knowledge in C++ Strong understanding of API design Ability to independently execute on medium sized features, taking a few weeks and multiple PRs to complete Ability to understand, debug and improve existing code Strong communications More ❯

University of the Arts London (UAL) is a world-leading creative University for teaching and research in art, design, fashion, communication and performing arts. UAL is made up of six renowned colleges and hosts several centres and institutes that further the University’s mission and social purpose, through the students and ideas we send out into the world and … and Data team, which plays a critical leadership role in shaping and delivering University of the Arts London’s enterprise integration strategy. This role is responsible for driving an API-first approach to system integration, ensuring that UAL’s digital platforms are seamlessly connected, scalable, and aligned with strategic priorities. You will lead a team of integration architects and … developers, overseeing the design, development, and optimisation of APIs that support business outcomes and enhance user experience. This includes managing the full lifecycle of integration services from strategy and architecture to delivery and operational support. The role requires close collaboration with internal stakeholders across Digital & Technology, academic colleges, and external partners to ensure integration solutions are robust, secure, and More ❯

University of the Arts London (UAL) is a world-leading creative University for teaching and research in art, design, fashion, communication and performing arts. UAL is made up of six renowned colleges and hosts several centres and institutes that further the University's mission and social purpose, through the students and ideas we send out into the world and … and Data team, which plays a critical leadership role in shaping and delivering University of the Arts London's enterprise integration strategy. This role is responsible for driving an API-first approach to system integration, ensuring that UAL's digital platforms are seamlessly connected, scalable, and aligned with strategic priorities. You will lead a team of integration architects and … developers, overseeing the design, development, and optimisation of APIs that support business outcomes and enhance user experience. This includes managing the full life cycle of integration services from strategy and architecture to delivery and operational support. The role requires close collaboration with internal stakeholders across Digital & Technology, academic colleges, and external partners to ensure integration solutions are robust, secure More ❯

orchestration, APIs, SDKs, integration toolkits) and lead the technical strategy to embed AI-driven orchestration across their software portfolio. This is a hands-on senior leadership role: you will design the platform, own non-functional requirements (reliability, security, scalability, compliance), drive adoption internally and externally, and build a small, high-performing global team that moves fast with a start … up mentality. What you’ll do Define and deliver the Core AI Services platform (orchestration, APIs, SDKs, integration toolkits). Lead the design and delivery of AI-driven orchestration layers across the software portfolio. Own platform non-functional attributes: security, reliability, availability, compliance, and global scale. Lower barriers to integration - deliver an excellent developer experience (APIs, SDKs, documentation, sample … major cloud providers preferred). Solid background in AI/ML technologies, ideally with experience integrating LLMs or advanced AI models into production orchestration layers. Strong knowledge of public API design, service lifecycle management, and developer experience best practices. Familiarity with emerging AI standards and agent protocols. Practical understanding of AI governance and regulation, with demonstrable experience implementing More ❯

execution for a core pillar of this new platform. You will operate as the single-threaded owner for a critical domain, working across engineering, AI/ML, research, and design to deliver a seamless and scalable product experience. This role is a rare opportunity to define the strategy for a zero-to-one system—shaping how content is modeled … foundational capability within IDC's next-gen discovery platform. Define the data models, technical architecture, and platform interfaces that power intelligent, context-aware product experiences. Partner with engineering to design and deliver scalable APIs, system components, and observability layers that enable extensibility and reuse. Collaborate with AI/ML teams to integrate capabilities such as semantic search, LLM-powered … or equivalent technical experience. Proven track record of shipping 0→2 products or scaling platform capabilities in ambiguous, high-accountability environments. Deep technical fluency—you can meaningfully shape architecture, API design, and system trade-offs with engineering teams. Exceptional written and verbal communication skills; able to influence VP- and SVP-level stakeholders. Demonstrated ability to lead cross-functional More ❯

seamlessly via APIs. This is the opportunity to make a real impact in a rapidly growing team, while working on cutting-edge AI technology. What You'll Work On: Design and implement scalable backend systems using Python (FastAPI, Flask, or Django) Integrate AI-generated code into production-ready services Take ownership of projects from idea to production — collaborating across … teams Experiment with LLM- and agentic-coding workflows to accelerate development Who You Are: 5+ years of experience in back-end development (Python based stack ideally) Strong understanding of API design and systems architecture Strong communication and collaboration skills Exposure to AI, LLMs or modern ML-backed systems is a plus! Apply now or reach out directly: hhandelman More ❯

seamlessly via APIs. This is the opportunity to make a real impact in a rapidly growing team, while working on cutting-edge AI technology. What You'll Work On: Design and implement scalable backend systems using Python (FastAPI, Flask, or Django) Integrate AI-generated code into production-ready services Take ownership of projects from idea to production — collaborating across … teams Experiment with LLM- and agentic-coding workflows to accelerate development Who You Are: 5+ years of experience in back-end development (Python based stack ideally) Strong understanding of API design and systems architecture Strong communication and collaboration skills Exposure to AI, LLMs or modern ML-backed systems is a plus! Apply now or reach out directly: hhandelman More ❯