176 to 200 of 271 API Design Jobs

Software Engineer, iCloud Platform

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
have a real passion for engineering and delivering features that maintain strong privacy guarantees to end users. Description We are high-impact teams that design, build, and operate novel functionality across Apple's iCloud Platform. Our work spans privacy-preserving cloud compute infrastructure and media processing systems that enable … areas, applying established patterns and practices while building deep technical expertise in your domain. You’ll manage your parts of timelines and deliverables, and design solutions that advance the platform’s capabilities. You will bring a can-do attitude to get features shipped but be willing to defend good ...

Remote Full Stack Software Engineer (Senior, Python / Rust / Go & React, Insurance)

Hiring Organisation
Jobleads-UK
Location
United Kingdom
Strong in a semi‐mainstream programming language (e.g. Python, Typescript, Rust, Go, etc) Proficient with frontend/GUI framework Good understanding of data processing, API design/integration, and system architecture Comfortable adopting new tools and technologies as needed — adaptability is more important than narrow specialisation security/… software for business critical, web‐based applications Build eye‐catching, functional, efficient, and reusable web and mobile‐based sites that drive these web applications Design, build, test, document and maintain APIs and integrations Ensure quality control using industry standard techniques such as automated testing, pairing, and code review Work ...

Pre-Sales Technical Architect for SaaS Integrations

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
client data will be sourced, validated, and integrated into Mondra, leveraging where possible our existing Import and Export APIs and identifying where custom API development may be required for fulfil Mondra’s data requirements. You will also contribute to the client contracting process, ensuring technical commitments are clearly defined … including mapping data sources, transformation logic, and validation processes. Identify the client’s BI requirements, and define data export strategies (preferably via existing Mondra API). Identify the authentication/authorisation capabilities of the client, and promote the integration with Mondra’s Identity Provider via Single Sign On. Leverage ...

Junior Solutions Architect

Hiring Organisation
Proactive Appointments
Location
Birmingham, West Midlands, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
their career in Solution Architecture or is ready to transition from Business Analysis or Integration Developmen t into a role where you'll help design innovative enterprise integration solutions for a diverse client base. Working alongside experienced Solution Architects and delivery teams, you'll gain valuable exposure to enterprise … integration projects while developing your expertise in solution design, architecture best practices, and modern iPaaS technologies. This is a fantastic opportunity for someone who enjoys combining technical knowledge with business engagement and wants to develop into a senior architecture role. Key Responsibilities Support the design and documentation ...

Senior Product Security Engineer

Hiring Organisation
Jobleads-UK
Location
Cambridge, England, United Kingdom
them at scale. You will work on tool integration, results processing, and the services that make analysis outputs usable by engineering teams. Key Responsibilities Design, build, and maintain core backend services for centralised security analysis and data processing. Develop Python services, APIs, and workflow components that support tool onboarding … comfortable in scripting (e.g. bash). Proven experience designing, building, and operating backend services or internal platforms in production environments. Strong understanding of API design, service-to-service integration, and backend architecture. Experience working in cloud environments, ideally AWS. Experience with containers and related tooling, for example Docker. ...

Senior Software Engineer (Python)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
team that’s making a real difference. The role What you’d be doing? You’ll collaborate with cross‐functional teams to design and implement software solutions that address complex sustainability challenges. Your focus will be on building internal tooling that consultants use to deliver these insights to clients. … have a track record of delivering production software systems that incorporate various data backends, query languages, and ORM frameworks. Your expertise should include API design, web application development, and a background in data engineering, particularly with ETL pipelines. While not mandatory, experience with modern cloud technologies and platforms ...

Senior Software Engineer, Embedded UI

Hiring Organisation
Jobleads-UK
Location
Cambridge, England, United Kingdom
engineers are self-motivated to tackle challenges and ship impactful solutions. Collaboration is key—engineers work closely with cross‐functional teams, including UI design, product management, and business leadership, to make things happen. If you’re passionate about reimagining the world of streaming media in a dynamic, collaborative environment … this is the team for you. About the Role Our products are known for their seamless integration and intuitive design that delights users right out of the box. These qualities are the result of meticulous engineering and a commitment to excellence. As part of the engineering team ...

Principal Software Engineer - C#

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
Role Overview ICRV are seeking an exceptional Principal Engineer to own the architecture, design and hands‐on delivery of a desktop platform automating and streamlining trading desk workflows. This is a high‐visibility player‐coach role that may evolve to include formal people management. Role Responsibilities … output. Own the technical direction of the ICRV greenfield project, developing high‐performance, scalable, and robust solutions from first principles through to production operation. Design for hard non‐functional requirements: latency and responsiveness budgets as acceptance criteria, crash containment, least‐privilege isolation between sub‐applications. Work effectively with ...

Senior Backend Engineer II

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Senior Backend Engineer (II) to join our Special Projects Team, the team responsible for building Runna features directly inside the Strava app. You'll design and build the services that let Strava athletes experience Runna's structure training and workout analysis natively within Strava. This is a rare chance … that translates to more than half of your time on-site in our London office — three days per week. What You’ll Be Doing: Design, build, and maintain scalable backend services using Strava’s tech stack (Ruby, Java, Scala, Python, Go, MySQL, Redis, Cassandra, Kafka, Kubernetes, Docker, Elasticsearch ...

Principal Software Engineer - C#

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
executes complex, multi-leg synthetic strategies on behalf of institutional clients.**Role Overview**ICRV are seeking an exceptional Principal Engineer to own the architecture, design and hands-on delivery of desktop platform automating and streamlining trading desk workflows. This is a high-visibility player-coach role: you will apply … output.* Own the technical direction of the ICRV greenfield project, developing high-performance, scalable, and robust solutions from first principles through to production operation.* Design for hard non-functional requirements: latency and responsiveness budgets as acceptance criteria, crash containment, least-privilege isolation between sub-applications.* Work effectively with ...

Principal Software Engineer - C#

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
team that executes complex, multi-leg synthetic strategies on behalf of institutional clients.Role OverviewICRV are seeking an exceptional Principal Engineer to own the architecture, design and hands-on delivery of desktop platform automating and streamlining trading desk workflows. This is a high-visibility player-coach role: you will apply … C#/.NET (LTS): back-end services with ASP.NET Core.Experience designing and delivering event-driven, service-oriented back-end systems (message brokers, async workflows, API design) in a production trading environment.Experience building desktop applications that host web content (e.g., Electron, Tauri, or custom .NET host); comfortable with WebSocket ...

AI Architect / Engineer

Hiring Organisation
Change Digital – Digital & Tech Recruitment
Location
England, United Kingdom
Multi-Agent Architectures Python & modern software engineering practices Cloud platforms (Azure, AWS or GCP) MLOps/LLMOps, CI/CD and model deployment API design, orchestration and enterprise-scale AI solutions Desirable: Consulting or professional services experience Vector databases, knowledge graphs and advanced retrieval techniques AI or Cloud ...

Cloud Solutions Architect

Hiring Organisation
DGH Recruitment
Location
Central London, London, United Kingdom
Employment Type
Permanent
with delivery teams to guide implementation and resolve technical challenges. * Conduct architecture reviews for projects and change requests, validating alignment with EA standards. * Design end-to-end integration solutions across the firm's application estate (Aderant, iManage, Intapp, HubSpot). * Define API contracts, message schemas, and integration patterns … build vs buy decisions. * Conduct proof of concepts (POCs) and technical spikes to validate architectural approaches. Required Experience: * Experience in solution architecture, technical design, or senior development roles. * Strong experience designing integration solutions across enterprise applications. * Excellent knowledge of API design, messaging patterns, and integration architectures. * Experience ...

Staff Product Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
team: set patterns, establish standards, and make foundational decisions that others build on for years. Lead cross‐functional technical discussions, partnering closely with product, design, and the founding team to translate ambiguous problems into elegant, scalable solutions. Join customer calls and engage directly with finance leads and CFOs. … commercial conversations and use what you learn to sharpen what we build. Identify and resolve systemic risks before they become production incidents. You design for failure, not around it. Raise the bar for the whole team: through code reviews, technical mentorship, and by modelling what rigorous, thoughtful engineering looks ...

Senior AI Platform Engineer

Hiring Organisation
Jobleads-UK
Location
Leeds, England, United Kingdom
team, which builds and runs the infrastructure connecting CreateFuture’s engineers and client workloads to multiple LLM providers — from the inference control plane (the API gateway and routing layer for Anthropic, AWS Bedrock, OpenAI, and others) through to the orchestration and lifecycle tooling that turns individual AI integrations into … experience across the gateway, orchestration, and governance layers, with support from senior colleagues. What you’ll be doing: Build, run, and evolve the API gateway and routing layer connecting engineers and client workloads to multiple LLM providers (Anthropic, AWS Bedrock, OpenAI), including the failover and routing strategies ...

Senior AI Platform Engineer

Hiring Organisation
Jobleads-UK
Location
City of Edinburgh, Scotland, United Kingdom
team, which builds and runs the infrastructure connecting CreateFuture’s engineers and client workloads to multiple LLM providers — from the inference control plane (the API gateway and routing layer for Anthropic, AWS Bedrock, OpenAI, and others) through to the orchestration and lifecycle tooling that turns individual AI integrations into … experience across the gateway, orchestration, and governance layers, with support from senior colleagues. What you’ll be doing: Build, run, and evolve the API gateway and routing layer connecting engineers and client workloads to multiple LLM providers (Anthropic, AWS Bedrock, OpenAI), including the failover and routing strategies ...

Senior Software Engineer - AI-Driven Testing & Reliability

Hiring Organisation
Jobleads-UK
Location
United Kingdom
Identity's OneLogin team seeks a Senior Software Engineer who owns end-to-end development, testing, and reliability. You will design scalable automated testing, improve CI/CD confidence, and lead testing strategy across services, leveraging AI tools to optimize coverage and reduce release risk. Ideal candidates have 4+ … years of backend experience, strong API design skills, and AWS-based production readiness. #J-18808-Ljbffr ...

Principal Solutions Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
working hours, patterns and locations to suit you and our business. About the Opportunity As a Principal Solutions Architect, you will specialise in the design, development and governance of integrated digital project controls environments across major capital programmes. This is not a general IT solutions architecture role. … required. Key Responsibilities Define enterprise aligned solution architectures for programme controls platforms covering cost, schedule, risk, performance reporting and data governance. Lead evaluation, selection, design and configuration of programme controls systems such as EcoSys, Oracle Primavera P6 and Unifier, Aconex, CDEs including SharePoint and ProjectWise, and related digital delivery ...

AI Architect / Engineer (Agentic AI & LLM Architecture)

Hiring Organisation
Jobleads-UK
Location
United Kingdom
practice scales, we are seeking an experienced AI Architect/Engineer to act as the senior technical authority shaping how we design and deliver next‐generation AI solutions. This is a role for someone who has moved beyond building individual models to architecting entire systems: agentic platforms, LLM‐powered … ambiguous business problems into robust, deployable architectures. As engagements mature, you will provide the technical oversight that keeps delivery teams aligned to the original design intent. Your influence will be felt in pre‐sales conversations, solution blueprints, and the technical standards that define how our practice builds. This ...

Product Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
it. In this role, you will: Own features end-to-end across the full stack (you could be leaning either frontend or backend), from API design to React interfaces to database migrations Ship real, user-facing product that reaches vets and pet owners every single day Help shape … engineering team works as we scale.. Early hires leave fingerprints here Collaborate closely with product and design, moving fast and debating well Take on real ownership and responsibility from day one: no lanes, no waiting Your background looks something like: Engineering experience in tech and product-driven environments Strong ...

Backend Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
play a role in shaping Augur’s engineering culture, practices, and foundations as we grow. We are looking for a Backend Engineer who can design and build the distributed systems, storage infrastructure, and platform primitives that underpin Augur's sensor integration product. You'll work across the full backend … surface: from stream processing and storage, to API design, data pipelines, and service architecture, in a Rust stack with Python at the platform API boundaries. You’ll be responsible for building robust, well-abstracted systems that scale with the demands of a growing integration and customer base ...

Backend Engineer II — AI-Enabled Pricing at Scale

Hiring Organisation
Jobleads-UK
Location
City of Westminster, England, United Kingdom
Expedia Group is seeking a Software Development Engineer II (Backend) to design, develop, and maintain high-throughput pricing services. You will implement caching, participate in API design, and collaborate with cross-functional teams to deliver scalable microservices. The role emphasizes experience with Java/Scala/Kotlin ...

Backend Software Engineer II - Scalable Pricing & AI-Driven

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Expedia Group is seeking a Software Development Engineer II (Backend) to design and build high-throughput backend services for pricing. You will implement cache layers and participate in API design and data modeling for scalable microservices. The role emphasizes hands-on development with Java/Scala/ ...

Senior AI Platform Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
team, which builds and runs the infrastructure connecting CreateFuture’s engineers and client workloads to multiple LLM providers — from the inference control plane (the API gateway and routing layer for Anthropic, AWS Bedrock, OpenAI, and others) through to the orchestration and lifecycle tooling that turns individual AI integrations into … experience across the gateway, orchestration, and governance layers, with support from senior colleagues. What you’ll be doing Build, run, and evolve the API gateway and routing layer connecting engineers and client workloads to multiple LLM providers (Anthropic, AWS Bedrock, OpenAI), including the failover and routing strategies ...