26 to 50 of 119 API Design Jobs in London

seeking a foundational engineer to own our single greatest strategic asset: our unique, privileged access to network-level intelligence via the GSMA CAMARA API standard. This is our right to win, and you will be the engineer responsible for building the bridge to it. You will be the Critical … build the Security Signal Ingestion path, the secure, low-latency, and out-of-band data channel connecting to our founding members' network API gateways. ? Architect and implement a carrier-agnostic, vendor-agnostic connector layer to consume RESTful APIs from a heterogeneous global landscape of telco partners and IMS vendors ...

looking for an experienced Kotlin & Swift Developer with strong computer vision experience to design, build, and maintain a high-performance Software Development Kit (SDK) used in security-critical mobile applications. This role sits at the intersection of mobile engineering, applied computer vision, and SDK architecture , and will play … role in delivering reusable, secure, and developer-friendly components used by third-party teams and partners. Key Responsibilities SDK Design & Development Design and develop a cross-platform mobile SDK (iOS & Android) using Swift and Kotlin Create clean, modular, well-documented SDK APIs for external developers Ensure ...

looking for an experienced Kotlin & Swift Developer with strong computer vision experience to design, build, and maintain a high-performance Software Development Kit (SDK) used in security-critical mobile applications. This role sits at the intersection of mobile engineering, applied computer vision, and SDK architecture , and will play … role in delivering reusable, secure, and developer-friendly components used by third-party teams and partners. Key Responsibilities SDK Design & Development Design and develop a cross-platform mobile SDK (iOS & Android) using Swift and Kotlin Create clean, modular, well-documented SDK APIs for external developers Ensure ...

Join OCI to design and deliver cloud-scale DDoS protection as part of our edge security platform. You'll design and ship high-performance detection and mitigation systems, automate operations end-to-end, and help define the technical foundation for customer-facing DDoS capabilities. Basic qualifications 6+ years … Proficiency in one or more: Java/Python/C Rust/Go Strong preference for Java for control-plane/services. Strong systems design skills: concurrency, memory management, performance tuning, API design, and distributed systems fundamentals. Experience with DevOps at scale: CI/CD, automated testing ...

Join OCI to design and deliver cloud-scale DDoS protection as part of our edge security platform. You'll design and ship high-performance detection and mitigation systems, automate operations end-to-end, and help define the technical foundation for customer-facing DDoS capabilities. Basic qualifications 6+ years … Proficiency in one or more: Java/Python/C Rust/Go Strong preference for Java for control-plane/services. Strong systems design skills: concurrency, memory management, performance tuning, API design, and distributed systems fundamentals. Experience with DevOps at scale: CI/CD, automated testing ...

risk Govern threat modeling, architecture reviews, and risk remediation; ensure auditability and policy adherence for Tier 0 services. Embed security and privacy by design; enforce zero trust principles and secure service-to-service communication (mTLS, policy). Hire, onboard, and grow a diverse, high-performing team; set clear OKRs … provide ongoing coaching and feedback, and drive career paths and succession planning. Mentor senior ICs and emerging leaders; establish technical ladders, design reviews, and knowledge-sharing rituals. Cross-functional leadership and communications Partner closely with Product, SRE, Networking, Architecture, and Security to land integrated capabilities and resilient outcomes. Provide ...

risk Govern threat modeling, architecture reviews, and risk remediation; ensure auditability and policy adherence for Tier 0 services. Embed security and privacy by design; enforce zero trust principles and secure service-to-service communication (mTLS, policy). Hire, onboard, and grow a diverse, high-performing team; set clear OKRs … provide ongoing coaching and feedback, and drive career paths and succession planning. Mentor senior ICs and emerging leaders; establish technical ladders, design reviews, and knowledge-sharing rituals. Cross-functional leadership and communications Partner closely with Product, SRE, Networking, Architecture, and Security to land integrated capabilities and resilient outcomes. Provide ...

tech and designing new. Some of their core and long-standing solutions will be completely replaced to modern architecture and technology. Experience Seeking: Solution design for data engineering and software engineering projects Experience of workflows, orchestrations and data/system integration DevOps and end to end data pipeline Prior … scripting Previous .Net Development experience nice to have Previously designed solutions to move solutions from on-premise to Cloud AI and Machine Learning understanding Design Patterns Data Fabric, Snowflake or other Kubernetes and API Design' Exposure to Technical Design Authority and Governance Team Lead experience Agile ...

thrives on solving complex challenges, driving innovation, and actively contributing to the development of scalable, high-performance enterprise applications. You’ll lead architectural design while remaining deeply involved in implementation, reporting to the Head of Financial Messaging Engineering, working side-by-side with engineering teams to build robust solutions … 21+ , Spring Boot , and Node.js . Expertise in backend technologies: Hibernate, Oracle DB/PostgreSQL, Kafka, Redis, Elastic Search/Apache Solr Proficiency in API design and development using REST and GraphQL . Solid understanding of secure coding practices Desired experience with DevOps tools and practices : CI/ ...

thrives on solving complex challenges, driving innovation, and actively contributing to the development of scalable, high-performance enterprise applications. You’ll lead architectural design while remaining deeply involved in implementation, reporting to the Head of Financial Messaging Engineering, working side-by-side with engineering teams to build robust solutions … 21+ , Spring Boot , and Node.js . Expertise in backend technologies: Hibernate, Oracle DB/PostgreSQL, Kafka, Redis, Elastic Search/Apache Solr Proficiency in API design and development using REST and GraphQL . Solid understanding of secure coding practices Desired experience with DevOps tools and practices : CI/ ...

Hybrid Employer: Global Technology Consultancy Mandatory Skill: Google Kubernetes Engine (GKE) Role Purpose We are seeking a hands-on Cloud Platform Engineering Lead to design, build and operate secure, automated cloud platform capabilities. You will enable product teams to deliver API-first services rapidly and reliably, while balancing … deep technical work with coaching and engineering leadership. Key Responsibilities Design, build, and operate platform capabilities using Infrastructure-as-Code and modern CI/CD . Embed secure-by-design principles from architecture to runtime. Define and manage SLOs/SLIs ; drive observability, performance tuning, and automation. Promote ...

week Job Overview: Data Architect plays a key role in CLS’s architecture/technology division. Role requires broad knowledge in data architecture and design, with a focus on OLTP, Data Warehouse, Data Reporting, API capability and other database interfaces. This role involves collaborating with cross-functional teams … understand business requirements, providing technical leadership, and ensuring the design meet CLS architectural principles and security standards. Person should be strong technologist very aware of current developments in technology spectrum. Key Responsibilities : Author High Level Solution Design, Solutions Overview and Conceptual Architectures. Design and architect solutions based ...

week Job Overview: Data Architect plays a key role in CLS’s architecture/technology division. Role requires broad knowledge in data architecture and design, with a focus on OLTP, Data Warehouse, Data Reporting, API capability and other database interfaces. This role involves collaborating with cross-functional teams … understand business requirements, providing technical leadership, and ensuring the design meet CLS architectural principles and security standards. Person should be strong technologist very aware of current developments in technology spectrum. Key Responsibilities : Author High Level Solution Design, Solutions Overview and Conceptual Architectures. Design and architect solutions based ...

This role is critical in ensuring efficient electronic data exchange between the business and its partners, supporting operations through robust technical solutions. Key Responsibilities Design, develop, and maintain EDI workflows and API integrations for orders, invoices, and shipments. Collaborate with internal teams and external partners to ensure compliance … with EDI and API standards. Monitor and troubleshoot EDI/API transactions, ensuring accuracy and efficiency. Work with ERP and Order Management Systems to support end-to-end business processes. Maintain documentation and stay current with industry standards and best practices. Skills & Experience Strong knowledge of EDI protocols ...

This role is critical in ensuring efficient electronic data exchange between the business and its partners, supporting operations through robust technical solutions. Key Responsibilities Design, develop, and maintain EDI workflows and API integrations for orders, invoices, and shipments. Collaborate with internal teams and external partners to ensure compliance … with EDI and API standards. Monitor and troubleshoot EDI/API transactions, ensuring accuracy and efficiency. Work with ERP and Order Management Systems to support end-to-end business processes. Maintain documentation and stay current with industry standards and best practices. Skills & Experience Strong knowledge of EDI protocols ...

This role is critical in ensuring efficient electronic data exchange between the business and its partners, supporting operations through robust technical solutions. Key Responsibilities Design, develop, and maintain EDI workflows and API integrations for orders, invoices, and shipments. Collaborate with internal teams and external partners to ensure compliance … with EDI and API standards. Monitor and troubleshoot EDI/API transactions, ensuring accuracy and efficiency. Work with ERP and Order Management Systems to support end-to-end business processes. Maintain documentation and stay current with industry standards and best practices. Skills & Experience Strong knowledge of EDI protocols ...

enterprise architecture framework that spans all acquired businesses Define standards and blueprints for integration, data architecture, and core enterprise systems Integration & Consolidation Lead the design of integration strategies to connect disparate platforms, applications, and processes across the group and with external third-parties Oversee consolidation of legacy systems while … ensure consistency, quality, and accessibility of information Implement governance frameworks for master data management, analytics, and compliance with industry regulations Traditional Enterprise Architecture Design and maintain models for business, application, and technology architectures Ensure scalability, security, and resilience across infrastructure and software platforms Innovation & Transformation Identify opportunities to leverage ...

layers, contributing to mission-critical digital services used across the UK and internationally. What You'll Do As a Full Stack Developer, you'll design and develop robust APIs and backend services using Node.js, while also contributing to frontend interfaces that deliver seamless user experiences. You'll work within … deliver resilient, maintainable solutions. Responsibilities Develop and maintain backend services and APIs using Node.js Build responsive, accessible frontend components using modern JavaScript frameworks Design event-driven systems using Kafka and SQS Implement infrastructure automation with Terraform Deploy and manage services in AWS (ECS, Cognito, SQS) Containerise applications using Docker ...

/API/Ecommerce/Product design/PDP/Tourism Role: Product Manager Compnay: Ecommerce Location: East London Onsite: Hybrid 2/3 day per week onsite Salary: up to £90,000 + Bonus We're looking for an experienced Product Manager to own and evolve core … shape platform-adjacent products including APIs, pricing models, and rules-based systems Develop product plan to boost CRO. Partner closely with engineers on API contracts, integrations, and architectural trade-offs Translate complex workflows and data flows into clear, scalable product structures Lead cross-functional discussions, aligning technical decisions with ...

/API/Ecommerce/Product design/PDP/Tourism Role: Product Manager Compnay: Ecommerce Location: East London Onsite: Hybrid 2/3 day per week onsite Salary: up to £90,000 + Bonus We're looking for an experienced Product Manager to own and evolve core … shape platform-adjacent products including APIs, pricing models, and rules-based systems Develop product plan to boost CRO. Partner closely with engineers on API contracts, integrations, and architectural trade-offs Translate complex workflows and data flows into clear, scalable product structures Lead cross-functional discussions, aligning technical decisions with ...

/17+) Deep Spring Boot & microservices experience Strong AWS skills (EC2, S3, Lambda, IAM) Kafka/event-driven systems SQL optimisation REST/JSON API design Docker proficiency Excellent communication skills Nice to Have JavaScript/React Aurora/RDS If you're proactive, outcomes-driven, and thrive ...

/17+) Deep Spring Boot & microservices experience Strong AWS skills (EC2, S3, Lambda, IAM) Kafka/event-driven systems SQL optimisation REST/JSON API design Docker proficiency Excellent communication skills Nice to Have JavaScript/React Aurora/RDS If you're proactive, outcomes-driven, and thrive ...

front-end teams in a fast-paced Agile environment. You'll thrive in this role if you have: Strong working experience in PHP, OOP, design patterns and principles, including SOLID Strong understanding of automated testing practices Expertise in performant MySQL and relational database design Hands-on experience with … API design and development Comfortable using modern tooling, including Docker, Git, PHPStan, PHPUnit and CI/CD Experience in Symfony Familiarity with cloud services, particularly AWS Experience in agile environments and contributing to team collaboration A proactive, solutions-oriented mindset and excellent communication skills The tech stack ...

+ Benefits We’re partnering with a global adtech firm. They’re now looking for a Senior Software Engineer with architectural exposure to help design and deliver key platform components while remaining hands-on across Python, TypeScript/React, and Google Cloud. The Role You’ll play a hybrid … role across system design, coding, and delivery, working closely with the CTO. Expect a healthy mix of: Architecture & Technical Direction Contributing to the system design and technical roadmap for core scheduling and automation services Helping define engineering standards across API design, data models, observability ...

+ Benefits We’re partnering with a global adtech firm. They’re now looking for a Senior Software Engineer with architectural exposure to help design and deliver key platform components while remaining hands-on across Python, TypeScript/React, and Google Cloud. The Role You’ll play a hybrid … role across system design, coding, and delivery, working closely with the CTO. Expect a healthy mix of: Architecture & Technical Direction Contributing to the system design and technical roadmap for core scheduling and automation services Helping define engineering standards across API design, data models, observability ...