476 to 500 of 508 Permanent API Design Jobs

Lead Backend Engineer

Location
Metropolitan Borough of Solihull, England, United Kingdom
Product team to deliver highly efficient systems. You would also: Collaborate with product managers, architects, and other stakeholders to define technical requirements and design, develop, and maintain backend systems that power our access control and security solutions. Evaluate , develop, and implement AI-powered tools and solutions to enhance products … services. Stay current with emerging AI technologies and provide technical leadership on the adoption of AI best practices across the team and participate in API design discussions and contribute to the evolution of our platform. Lead and assist a team of backend engineers, fostering a collaborative, high-performing ...

React Native Engineer

Location
Greater London, England, United Kingdom
with customer requirements and business objectives. Daily Tasks To contribute to Agile Scrum, and ensure deadlines and production quality. To spearhead creative solutions for API and backend related challenges. To manage platform infrastructure for scalability, high availability, and security. To ensure product scalability, high availability, and top-notch code … alerting to maintain high availability. To build, operate, and secure the APIs, backend, and even cloud infrastructure. To incorporate security best practices into the API design and implementation. To evaluate product code against specifications and gathering requirements. To address problems and document all reported issues and actions taken. ...

Senior PHP/Laravel Engineer – Platform Modernisation (Remote)

Location
United Kingdom
practice management. You will remain deeply involved in building software while guiding technical direction. Ideal candidates have senior technical experience, strong PHP (Laravel) skills, API design capability, and a #J-18808-Ljbffr ...

Full-Stack SDE II: React + Kotlin Backend

Location
Greater London, England, United Kingdom
Engineer II, Full-Stack, to build React-based user interfaces and backend capabilities across Expedia Group brands and B2B experiences. You will contribute to API design decisions, own features from requirements through delivery, and collaborate with product management and cross-functional teams. You will create reusable components ...

Platform Engineering Leader: Transformation & Resilience (Remote UK)

Location
Manchester, England, United Kingdom
will drive delivery, resilience, and standards while balancing live operations with platform evolution. The role requires strong full-stack Laravel/PHP skills, API design excellence, and hands-on leadership. UK remote or hybrid work near Manchester is available, with a focus on building high-performing, accountable teams. ...

Principal Android Engineer - Search & AI-Driven Discovery

Location
Greater London, England, United Kingdom
architectural direction, mentor engineers, and drive AI-enabled capabilities across the mobile platform. The role requires deep Kotlin expertise, Jetpack Compose mastery, and strong API design, with a focus on scalable, high-performance apps that delight travelers and partners alike. #J-18808-Ljbffr ...

Senior Mobile SDK Engineer — Stable APIs, Live Support

Location
Greater London, England, United Kingdom
product, so binary size, startup cost, thread safety, and backward compatibility are the job. You will own what you build end to end, from API design through release and live integration support. Based in-office (hybrid) in London or Ljubljana, Slovenia, you will work on Android (Kotlin ...

Senior Engineer

Location
Bromley, England, United Kingdom
data platform. Define and drive the architecture and strategy to support the future needs of Operations and the business. Provide technical leadership through architecture, design, code reviews, and pull request reviews, championing high standards of code quality and engineering excellence. Mentor engineers and drive continuous improvement in platform capabilities … building and supporting reactive, event-sourced systems. Hands-on experience with Apache Spark and Apache Flink. Strong understanding of Apache HTTP, Envoy, and REST API design. Experience working with Protobuf, Avro, and Parquet data formats. Knowledge of Iceberg, Databricks, and Hadoop ecosystems. Skills that will help Follows TDD, ATDD ...

Technical Product Manager: AI Data, APIs & Integrations

Location
City Of London, England, United Kingdom
seeking a technically minded Product Manager to own the data sources, APIs and integrations at the heart of our platform. You will read API documentation, map data flows and work through technical trade-offs with engineers, translating detail into a roadmap that engages both engineering and commercial stakeholders. … lead discovery through to delivery, shaping API design and data ingestion for a range of customer use cases. #J-18808-Ljbffr ...

Senior AI Product Engineer

Location
Greater London, England, United Kingdom
Engineer on the AI team, you\'ll own significant parts of the Agentic stack that power Elliptic\'s copilot. You\'ll lead the design of agentic workflows, drive technical decisions on how we build and operate LLM-based features, and help raise the engineering standard across the team. … take complex problems from ambiguity to shipped product, and you\'ll mentor more junior engineers as the team grows. What you will do: Design and build agentic workflows and AI-powered features that power Elliptic\'s copilot, using LLM frameworks such as LangChain or LangGraph. Lead the design ...

ML Research Engineer: From Research to Production

Location
Greater London, England, United Kingdom
London to advance machine learning platforms and research workflows. You’ll bridge research and engineering, building scalable training and inference infrastructure, and contributing to API design and system improvements. The role emphasizes solid mathematical foundations, experimentation with neural networks and ensembles, and staying current with the ML literature. ...

Global Marketplaces Product Lead – Payments & Wallets

Location
Greater London, England, United Kingdom
Marketplaces product team builds financial infrastructure for marketplace platforms to move money across currencies and countries. The role focuses on direct marketplace engagement, API design, and enabling global expansion with robust fund flow primitives. Ideal candidates bring 5+ years in product management in payments/fintech, strong ...

Lead Solutions Engineer — Apps & Gaming (Advertising Tech)

Location
Greater London, England, United Kingdom
turn business needs into robust technical outcomes. The role requires a hands-on leader with a track record in software delivery, ML infrastructure, and API design, capable of guiding cross-functional groups and communicating complex concepts clearly across audiences. #J-18808-Ljbffr ...

Software Engineer - Core IP Security

Hiring Organisation
G Research
Location
London, UK
Employment Type
Full-time
detection and scanning tools. As a Software Engineer, you will take ownership of designing, developing and operating these systems across service backends, cryptographic libraries, API integrations and hardened infrastructure. The software you build must meet the highest standards of correctness, auditability and availability. You will work on both … following skills and experience: Essential: Strong experience delivering production-quality software, ideally using C#/.NETStrong understanding of software architecture, concurrency, distributed systems and API designExperience building or operating security-sensitive systems where correctness and auditability are criticalSound engineering judgement, balancing security, performance, reliability and deliveryClear communication skills ...

Director, Artificial Intelligence & Machine Learning Engineer

Location
City of Edinburgh, Scotland, United Kingdom
efforts to make an impact at BlackRock. In this role, you can expect to: Provide technical leadership, set architectural direction, and drive key design decisions across multidisciplinary teams. Design, build, and operate production AI/ML systems across areas such as generative AI, intelligent agents, predictive modeling …/ML applications. Experience with containerization and orchestration technologies, such as Docker and Kubernetes. Demonstrated ability to lead complex technical solutions from architecture and design through production deployment, operation, and continuous improvement. Strong problem-solving, collaboration, and communication skills, with the ability to influence technical decisions across multidisciplinary teams. ...

Frontend Lead

Location
England, United Kingdom
integrates seamlessly with our Backend-for-Frontend (BFF) layer, powered by Spring Boot microservices , and deployed on Google Cloud Platform (GCP) . Key Responsibilities: Design and build a high-performance frontend framework using React.js and Micro Frontend (MFE) architecture . Implement SSR/CSR hybrid strategies to optimize rendering … enhance frontend-backend interactions. Improve frontend performance using lazy loading, predictive prefetching, tree shaking, and edge caching. Collaborate with backend engineers to optimize API designs and system efficiency. Define best practices for state management using Redux and Redux-Saga/Thunk for handling complex application flows. Optimize frontend applications ...

Software Engineer - Orchestration AI & Robotics Oxford, England, United Kingdom

Location
Oxford, England, United Kingdom
write control real hardware doing real biology, so correctness, recoverability, and observability matter more here than they do in most software work. Key Responsibilities Design and build the software that orchestrates autonomous laboratory systems, including scheduling, workflow execution, state management, error handling, and recovery. Develop the agentic layer … with attention to clear interfaces, testability, and the ability to simulate hardware so that logic can be developed and tested without occupying the lab. Design data models and pipelines for experimental data, sample tracking, and provenance, so that results are traceable from raw instrument output back to the protocol ...

Senior Technical Product Manager – Financial Data Distribution

Location
Greater London, England, United Kingdom
data distribution by working across third party platform distributors and directly with client distribution platforms. Product Discovery & Requirements Definition Lead structured product discovery and design sessions with clients, business, technology, operations. Translate business and client needs into clear product requirements, technical specifications, and prioritised backlog items. Own product documentation … distribution architectures, including APIs, event/batch delivery, entitlement models, and access controls. Demonstrated ability to work effectively with senior engineers and architects on design and tradeoff decisions. Experience defining API/FTP/Web distribution requirements. Preferred: Knowledge of the index business preferred. Experience with agentic solution ...

Software Architect - Retail Wealth Management- Wimbledon

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Software Architect – Retail Wealth Management100,000 Plus Bonus and Bens 10% PensionQuant Capital is urgently looking for a Technical Architect with REST API Experience to join or well known Fintech client who are a well know wealth management software business. We are looking for a technically strong architect … help to design and grow a SaaS platform. The company has bold global ambitions. They have a comprehensive microservices architecture in backend and are looking to extend the pattern into an ambitious micro-frontend strategy for user-facing applications. This is a leadership position. You will be joining ...

Machine Learning Engineer

Hiring Organisation
Baringa
Location
London, UK
Employment Type
Full-time
pipelines using Python and common ML and DL libraries (e.g. Pytorch, Tensorflow) from early conceptualisation to full deployment in scalable production environmentsAbility to design, deploy and maintain ML solutions on modern frameworks to meet functional business requirements, adhering to software engineering best practices and with exposure to version control … testing, MLOps, CI/CD and API designHands on experience in using one of 3 major cloud technologies (AWS, Azure or GCP) in a production environment, as well as ML platforms (e.g., AWS Sagemaker, Azure Machine Learning studio) Be a 'lifelong learner' and can demonstrate a drive to always ...

Senior Backend Engineer (Product Platforms)

Location
Uddingston, Scotland, United Kingdom
helping to raise technical standards across the wider engineering function. Attitude: Ownership mentality Builder mindset Technical curiosity Calm under pressure Continuous improvement Key Responsibilities: Design, develop and maintain scalable backend services and APIs. Own critical production systems and ensure reliability, performance and maintainability. Take ownership of existing platforms … commercial environment. Strong TypeScript or Python development experience. Experience building and operating production systems at scale. Strong understanding of distributed systems and API design. Experience working with relational databases and performance optimisation. Experience working within cloud environments, ideally Google Cloud Platform. Strong debugging and problem‐solving capabilities. Experience supporting ...

Senior Front Office Developer - HFT

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
regions with a wide range of strategies. As a Senior Software Engineer, you will work closely with a talented team of engineers to collaboratively design and develop robust software solutions essential for facilitating global trading operations. This includes systems such as trading systems, exchange connectivity solutions, monitoring systems … experience in C++ , Rust, Java and PythonDemonstrated expertise in network communication, including multicast and WebSockets. Proficiency in inter-process messaging, micro-service architectures, and API design. Familiarity with Functional Programming and Immutable Design. Experience with trading systems is desirableExcellent oral and written communication skills. Bachelor's degree in Computer ...

Member of Technical Staff - Applications

Location
Greater London, England, United Kingdom
usable interfaces. Feed delivery learnings back into platform patterns and defaults so the next system ships faster. What You\'ll Work With Full-Stack & API Development: React, TypeScript, REST, gRPC, FastAPI, Go services, API design. Auth & Governance: OIDC authentication, RBAC, audit logging. Workflows & Integrations: Event-driven systems, workflow … About You Strong full-stack engineering background with experience shipping production-grade applications end-to-end. Comfortable owning the full delivery surface — UI through API through auth — without needing to hand off between layers. Experience integrating with external systems or customer environments and making those integrations reliable and maintainable. ...

Senior Software Engineer - Quant trading

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
regions with a wide range of strategies. As a Senior Software Engineer, you will work closely with a talented team of engineers to collaboratively design and develop robust software solutions essential for facilitating global trading operations. This includes systems such as trading systems, exchange connectivity solutions, monitoring systems … Python (5+ years), Java and or C++Demonstrated expertise in network communication, including multicast and WebSockets. Proficiency in inter-process messaging, micro-service architectures, and API design. Familiarity with Functional Programming and Immutable Design. Experience with trading systems is desirable, but not required. Excellent oral and written communication skills. Bachelor ...

Senior Software Engineer, Quant trading - Python, RUST, C++

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
regions with a wide range of strategies. As a Senior Software Engineer, you will work closely with a talented team of engineers to collaboratively design and develop robust software solutions essential for facilitating global trading operations. This includes systems such as trading systems, exchange connectivity solutions, monitoring systems … experience in C++ , Rust, Java and PythonDemonstrated expertise in network communication, including multicast and WebSockets. Proficiency in inter-process messaging, micro-service architectures, and API design. Familiarity with Functional Programming and Immutable Design. Experience with trading systems is desirableExcellent oral and written communication skills. Bachelor's degree in Computer ...