1 to 25 of 192 API Design Jobs

Azure Integration & Automation Manager

Hiring Organisation
Reed
Location
Watford, Hertfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £85,000 per annum, Inc benefits
Type: Full-time, 3 days a week onsite A new excellent permanent role for an experience Azure Integration & Automation Manager to lead Integration and API capability, designing, delivering, and scaling a modern, API-led integration service that enhances business agility, digital automation, and composable architecture across a leading … combining hands-on technical leadership with service ownership, vendor management, and product-style roadmap management. Day-to-day of the role: Lead Enterprise Integration & API Strategy: Own and evolve the Integration & API Management strategy, aligned with digital and business priorities. Define and promote a composable API architecture ...

Backend Software Engineer (Remote, UK)

Hiring Organisation
esenda
Location
United Kingdom
work on impactful features that directly shape our platform and make a real difference to our customers. What you’ll do Design, build, and ship reliable backend services and APIs in Python (Flask) that power core product functionality. Own features end-to-end: data modelling (Postgres), API design … auditability, ledger concepts). Experience with distributed systems patterns (queues, background jobs, retries, rate limiting). Security experience (threat modelling, OWASP-style concerns, secure API design). Familiarity with Terraform. Why join us? £60k salary + equity 40 days holiday (incl. bank holidays) Pension scheme (3% employer contribution ...

Backend Software Engineer (Remote, UK)

Hiring Organisation
esenda
Location
East London, London, United Kingdom
work on impactful features that directly shape our platform and make a real difference to our customers. What you’ll do Design, build, and ship reliable backend services and APIs in Python (Flask) that power core product functionality. Own features end-to-end: data modelling (Postgres), API design … auditability, ledger concepts). Experience with distributed systems patterns (queues, background jobs, retries, rate limiting). Security experience (threat modelling, OWASP-style concerns, secure API design). Familiarity with Terraform. Why join us? £60k salary + equity 40 days holiday (incl. bank holidays) Pension scheme (3% employer contribution ...

Backend Software Engineer (Remote, UK)

Hiring Organisation
esenda
Location
Leeds, West Yorkshire, United Kingdom
work on impactful features that directly shape our platform and make a real difference to our customers. What you’ll do Design, build, and ship reliable backend services and APIs in Python (Flask) that power core product functionality. Own features end-to-end: data modelling (Postgres), API design … auditability, ledger concepts). Experience with distributed systems patterns (queues, background jobs, retries, rate limiting). Security experience (threat modelling, OWASP-style concerns, secure API design). Familiarity with Terraform. Why join us? £60k salary + equity 40 days holiday (incl. bank holidays) Pension scheme (3% employer contribution ...

Backend Software Engineer (Remote, UK)

Hiring Organisation
esenda
Location
Central London / West End, London, United Kingdom
work on impactful features that directly shape our platform and make a real difference to our customers. What you’ll do Design, build, and ship reliable backend services and APIs in Python (Flask) that power core product functionality. Own features end-to-end: data modelling (Postgres), API design … auditability, ledger concepts). Experience with distributed systems patterns (queues, background jobs, retries, rate limiting). Security experience (threat modelling, OWASP-style concerns, secure API design). Familiarity with Terraform. Why join us? £60k salary + equity 40 days holiday (incl. bank holidays) Pension scheme (3% employer contribution ...

Backend Software Engineer (Remote, UK)

Hiring Organisation
esenda
Location
Bolton, Greater Manchester, United Kingdom
work on impactful features that directly shape our platform and make a real difference to our customers. What you’ll do Design, build, and ship reliable backend services and APIs in Python (Flask) that power core product functionality. Own features end-to-end: data modelling (Postgres), API design … auditability, ledger concepts). Experience with distributed systems patterns (queues, background jobs, retries, rate limiting). Security experience (threat modelling, OWASP-style concerns, secure API design). Familiarity with Terraform. Why join us? £60k salary + equity 40 days holiday (incl. bank holidays) Pension scheme (3% employer contribution ...

Frontend Software Engineer - React and Typescript JBLE1 NI

Hiring Organisation
Ocho
Location
Belfast, UK
Doing: Build and maintain high-quality frontend components end-to-end Develop modern user interfaces using React and TypeScript Contribute to frontend architecture and API design decisions Collaborate with cross-functional teams to integrate product features Conduct code reviews and contribute to engineering best practices Optimise performance, scalability … usability of frontend systems Advocate for strong UX and design standards across the product What Youll Bring: 3+ years experience in frontend engineering Strong experience with React and TypeScript Experience building scalable, high-performance web applications Understanding of API design and frontend-backend integration Experience with ...

Senior Software Engineer

Hiring Organisation
Logiq Systems
Location
United Kingdom
Logiq develops as we scale. You will also be the champion of software engineering best practices across Logiq Systems. A few of your responsibilities: Design and develop full-stack features using React, Python, PostgreSQL and serverless technologies (AWS Lambda, Fargate). Design and implement RESTful APIs and event … Implement and maintain CI/CD pipelines . Ensure high-quality code through peer reviews, automated testing, documentation and adherence to software development standards. Design and implement technical architecture and engineering processes . Collaborate closely with a small startup team. To thrive in this role: We expect ...

Azure Integration & Automation Manager (API Expert)

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Watford, Hertfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 per annum
Azure Integration & Automation Manager (API Expert)Watford (2-3 days per week)£90000 + Package. This role cannot offer visa sponsorship Your new company I am working exclusively with a major UK construction business delivering complex programmes that have a real impact on the UK's infrastructure and wider … high impact leadership role sitting at the centre of architecture, engineering and business change. You will take ownership of the integration and API capability across the organisation, shaping both the strategy and how it is delivered in practice.You will define what good looks like when it comes to API ...

Artificial Intelligence Engineer

Hiring Organisation
SBS
Location
United Kingdom
grade AI systems in a regulated financial services environment. Location: UK or EU Hybrid/Remote: Remote (Occasional travel required) Responsibilities: AI Solution Development Design, build, and deploy AI/ML models and intelligent applications across SBS platforms Develop solutions leveraging: Machine Learning (ML) Natural Language Processing (NLP) Generative … capabilities into core banking, payments, and digital platforms Work closely with Product Managers, Architects, and Developers to embed AI into customer-facing solutions Support API development and microservices architecture for AI-driven features Data Engineering Collaboration Partner with data engineers to ensure data quality, availability, and pipeline integrity Work ...

Senior Software Engineer

Hiring Organisation
Wave Group
Location
London Area, United Kingdom
their platform. What you'll be doing Backend-heavy engineering across a Python/FastAPI stack, working on everything from data pipelines and API design to ML/AI service integration. You'll be a proper senior IC, running code reviews, mentoring engineers, and getting involved early … standardised CI/CD pipelines Feature flags and automated preview environments What you'll need Strong Python and web framework experience (FastAPI preferred) Solid API design and service-oriented architecture background Hands-on with data flow design, from persistent storage to API endpoints Good SQL knowledge ...

Senior Software Developer

Hiring Organisation
Birketts LLP
Location
Sevenoaks, Kent, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
This is a hands-on software engineering role, ideal for someone who thrives on solving complex problems in a collaborative, agile environment. You will: Design, develop and test Azure cloud native software using C# and .Net technologies, in line with an agreed schedule Ensure code is testable, safe, functional … secure, performant and reliable, all proven through testing Apply software development, microservices and API design best practices, and participate in code reviews Produce relevant and high standard documentation, developer-level tests, and deployment procedures Give accurate task estimates, and provide progress status to management Collaborate with cross-functional ...

Senior JavaScript/React Engineer - Remote

Hiring Organisation
Turing
Location
Tittling, Bayern, Germany
Employment Type
Contract
Contract Rate
EUR Annual
able to work across backend and frontend codebases Experience 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 Ideal background: experience building production … code examples, provide precise solutions, and make corrections across the full stack (Python for backend/ML workflows; JavaScript: React, Node.js for frontend/API; plus C/C++, Java, Rust, Go) Evaluate and refine AI-generated code for efficiency, scalability, and reliability across backend and frontend contexts Collaborate ...

Lead Engineer (Backend Focus)

Hiring Organisation
Tonic
Location
Manchester Area, United Kingdom
both web and mobile applications with offline-first functionality. Key responsibilities include: Maintaining platform stability and performance as usage scales Leading backend architecture and API design decisions Supporting scalability as new customers are onboarded Collaborating with product and business stakeholders to guide technical direction Balancing feature delivery with … Looking For Strong backend engineering experience is essential, ideally within modern PHP environments and production SaaS platforms operating at scale. Experience with: REST API design and architecture SQL schema design and optimisation Modern backend frameworks (Symfony preferred) Collaborative engineering environments and Git-based workflows Exposure to frontend ...

Remote Senior Python Engineer - Remote

Hiring Organisation
Turing
Location
Tittling, Bayern, Germany
Employment Type
Contract
Contract Rate
EUR Annual
building production-grade software Experience building full-stack applications and deploying scalable 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 Ideal background: engineers who have built … automated verification tools in Python to verify code quality 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 verify ...

Product Manager – Global Card Issuing Platform (BaaS)

Hiring Organisation
WorldFirst
Location
London Area, United Kingdom
infrastructure that allows clients to launch card programs anywhere in the world through a single integration. You will be responsible for a unified Global API and SDK suite that abstracts the complexity of regional payment networks. Whether a client is launching in Europe, North America, or APAC, your product … will provide a consistent, white-label experience. You will drive both the technical "how" (API/SDK design) and the strategic "where" (global expansion and regional issuing setups). What you’ll do: Unified Global API Strategy: Design and maintain a single, polymorphic API architecture ...

Senior Backend Engineer (Python/FastAPI) - Remote

Hiring Organisation
Turing
Location
Tittling, Bayern, Germany
Employment Type
Contract
Contract Rate
EUR Annual
/C++, Rust, and Go Experience building 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 Ideal background: engineers who have built … verify the quality of systems-level and infrastructure 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 verify ...

Head of Forward Deployment Engineering

Hiring Organisation
Triple
Location
United Kingdom
agents to connect with any core banking system, card processor, or dispute platform Own the technical quality of every client integration, from secure API design and data pipeline reliability to compliance with bank-grade security requirements Create scalable deployment tooling, integration templates, and automation that reduce time … Deep experience integrating with enterprise systems in financial services, payments, or similarly regulated industries Strong proficiency in Python and SQL. Hands-on experience with API design, data pipelines, and infrastructure automation Track record of building engineering teams or functions from early stage, including hiring, process design ...

Technical Product Manager

Hiring Organisation
Creditsafe
Location
Cardiff, Wales, United Kingdom
looking for a Technical Product Manager to join the API team, driving the product direction. This is a highly technical role, the ideal candidate will have worked in a technical role previously moving in to Product or have a passion for development and understand the structure of API … current and future customer needs (including readiness for AI agents and LLM-based consumption). Key to the role will be working with the API Architect and development team to ensure we are building the right thing at the right time. You will work closely with engineering, product, marketing ...

Technical Lead

Hiring Organisation
Formula
Location
London Area, United Kingdom
real scope to shape how the engineering team operates. Responsibilities as a Tech Lead: Own technical direction across the backend monolith, covering architecture decisions, API design, system reliability, and background job performance Drive end-to-end delivery, from scoping and estimation through to execution, managing trade-offs between … professional Ruby on Rails experience in production, with a solid grasp of monolith architecture and full-stack troubleshooting Experience with PostgreSQL, Redis and RESTful API design Comfortable with AWS-based infrastructure and Docker in development or production environments Proven ability to act as a genuine escalation point, with ...

Senior C++ Developer - Manchester / Hybrid

Hiring Organisation
Noir
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £65,000 per annum
Senior C++ Developer - Manchester/Hybrid (Senior C++ Developer, C++ Developer, Software Developer, C++, Qt/QML, API Design, Agile DevOps, Low latency, C4/UML, Senior C++ Developer, C++ Developer, Software Developer) Our client is a global innovator and world leader with one of the most recognisable … integrating with hardware. You will have excellent C++ skills, as well as being an expert with Qt/QML and considerable experience in API Design (Rest, GraphQL and events), Application monitoring and high performance, low latency engineering. You will possess a DevOps mindset and come from an Agile ...

Senior Consultant, AI Engineer

Hiring Organisation
hackajob
Location
London, UK
scale. EY has been selected for the inaugural Frontier Firm AI Initiative — a collaboration between Microsoft and Harvard’s Digital Data Design Institute — recognising EY’s leadership in shaping enterprise-grade human–AI operating models. In parallel, EY is expanding its collaboration with OpenAI and Microsoft, bringing advanced … adoption. However, many struggle to translate ideas into secure, scalable and reliable production solutions. As a Forward Deployed Engineer, you will contribute to the design and delivery of AI-enabled systems that operate reliably in enterprise environments. Working within a delivery squad, you will take ownership of defined engineering ...

Data Integration Engineer

Hiring Organisation
GlobalLogic
Location
City of London, London, United Kingdom
GlobalLogic, a Hitachi Group Company and a leader in digital engineering. We help brands across the globe design and build innovative products, platforms, and digital experiences for the modern world. By integrating experience design, complex engineering, and data expertise - we help our clients imagine what’s possible … Experience with: Experience with Python for data pipelines, export services, ETL, reconciliation, profiling scripts Data quality assessment Apache Kafka PostgreSQL for data modelling, query design, migrations etc Data modelling and schema design REST API design Ideally you will have: Experience of C# to be able ...

Senior Laravel Developer

Hiring Organisation
Oscar Associates Ltd
Location
England, United Kingdom
Employment Type
Permanent
Salary
GBP 60,000 - 70,000 Annual
engineering team works on a fully modernised, cloud-hosted SaaS platform built using contemporary frameworks and best practices, with a focus on scalable architecture, API-first design, and test-driven development. Key technical focus areas: Backend development in PHP (Laravel framework) API design and third-party … integrations (payments, SaaS tools, external services) Database design and optimisation (MySQL) Frontend collaboration using Vue.js and JavaScript Building and maintaining scalable, multi-tenant SaaS infrastructure Role focus: Full life cycle feature development from design through to production deployment Enhancing and evolving a core SaaS platform used by multiple ...

Solution Architect (Principal Consultant)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
transformation and ensuring data is protected and used ethically. Talan UK & Ireland provides a range of consultancy and outsourcing capabilities including programme management, market design and governance. We also have extensive and award-winning capabilities across cyber security, data privacy and digital transformation. We are a Great Place … recruiting an ambitious and technically accomplished Solutions Architect to join our Digital business unit as a Principal Consultant. You will lead the design and delivery of scalable, secure, and cloud-native platforms across Energy (including Low Carbon and UK regulatory systems), Financial Services, Public Sector, and Healthcare domains. This ...