26 to 34 of 34 API Design Jobs in London

Technical Architect

Hiring Organisation
RED Global
Location
London, UK
Employment Type
Full-time
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 ...

Engineering Manager, Logs

Hiring Organisation
Cloudflare
Location
London, UK
Employment Type
Full-time
observability, and incident response. Collaborate with partner teams (pipeline, storage, analytics) and with product feature teams to define ingestion standards, schemas, retention models, and API surfaces. Guide architectural decisions for large-scale event ingestion, transformation, and delivery systems. Create an environment that supports autonomy, psychological safety, and high engineering … systems to production. Experience with event-driven architectures and large-scale data processing (e.g., Kafka, Pulsar, Flink, ClickHouse, Iceberg, BigQuery). Strong understanding of API design and standards (OpenAPI/Swagger, OAuth/JWT). Familiarity with large-scale logging, observability, or telemetry systems is highly desirable. Ability ...

Backend Developer

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Permanent
Salary
£100000 - £110000/annum £110,000 -£130,000
product strategy. Requirements: Strong foundations in algorithms, data structures, and distributed systems Experience building and operating large-scale backend systems Expertise in system and API design, scalability, and performance tuning Proficiency in a modern backend language (Java preferred) Knowledge of cloud-native architectures, containers, and CI/ ...

Senior Developer

Hiring Organisation
Reed
Location
Holborn, London, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum, Inc benefits
commercial software development experience. Proven success in high-performing engineering teams within fast-paced environments. Deep expertise in: Python (Django, Flask, or FastAPI) PostgreSQL (design, optimisation, maintenance) Containerisation (Docker/Kubernetes) Event-driven architecture (Kafka/RabbitMQ) Desirable experience includes: TypeScript/JavaScript (NextJS, NodeJS, Tailwind) Terraform and DevOps … practices Experience in building and scaling SaaS platforms in production. Strong background in software architecture, microservices, and API design. Hands-on experience with AWS platform. Excellent communication skills, capable of motivating and aligning technical teams. Experience with AI tools, APIs, or ML pipelines is highly desirable. Bonus: Exposure ...

Principal Engineer - AI & Data Platforms

Hiring Organisation
ARM
Location
Hounslow, London, Heathrow Villages, United Kingdom
Employment Type
Contract
international organisation in the aviation sector is seeking a Principal Engineer to lead the design and delivery of enterprise-scale engineering solutions supporting AI-driven platforms. This is a senior, hands-on role embedded within a major airline environment, with responsibility for setting technical direction and ensuring solutions scale … role requires consultancy-level technical depth, strong delivery discipline, and the ability to translate complex operational needs into scalable, enterprise-ready solutions. Key Responsibilities Design and own architecture across all layers of the technology stack. Write production-grade code and deliver enterprise-ready solutions at pace. Engineer scalable, modular ...

Principal Engineer - AI & Data Platforms

Hiring Organisation
Advanced Resource Managers Limited
Location
London Heathrow Airport, Hounslow, Middlesex, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
international organisation in the aviation sector is seeking a Principal Engineer to lead the design and delivery of enterprise-scale engineering solutions supporting AI-driven platforms. This is a senior, hands-on role embedded within a major airline environment, with responsibility for setting technical direction and ensuring solutions scale … role requires consultancy-level technical depth, strong delivery discipline, and the ability to translate complex operational needs into scalable, enterprise-ready solutions. Key Responsibilities Design and own architecture across all layers of the technology stack. Write production-grade code and deliver enterprise-ready solutions at pace. Engineer scalable, modular ...

Senior Full Stack Engineer

Hiring Organisation
McGregor Boyall Associates Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
leading global investment management firm in London. Paying up to 120k plus bonus per annum, you will contribute to the development, optimisation, and design of front-office applications, collaborating with portfolio managers and product owners to create innovative and high-performance solutions. As a Senior Full Stack Software Engineer …/UX. Proven backend expertise, particularly with Java (Python, Node.js a plus), and experience building distributed microservices-based architectures. Strong knowledge of system design principles, scalable architecture patterns, and API design. Hands-on experience with relational (Postgres, MySQL) and NoSQL (DynamoDB) databases. Proficiency in cloud platforms (AWS, Azure ...

React Native Engineer

Hiring Organisation
Few&Far
Location
London, UK
Employment Type
Full-time
delivery Build data-rich, insight-driven mobile experiences with strong visualisation and UX Work closely with the backend team on data modelling, analytics, and API design Translate high-fidelity designs into a polished, high-quality consumer product Take responsibility for the full mobile lifecycle, including releases and operational ...

Lead Technical Business Analyst

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
mitigate risks associated with migration and system cutover. Core Skills & Experience: Proven expertise in PAS systems and complex data migration projects. Strong knowledge of API design and integration . Advanced data modelling skills for structured and semi-structured data. Proficiency in XML, JSON, and Excel for data handling ...