51 to 75 of 83 Remote/Hybrid API Design Jobs

Full Stack Developer

Hiring Organisation
Sanderson Government and Defence
Location
Corsham, Wiltshire, South West, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550 per day
Inside IR35 Duration - 12 months Location: Hybrid 2-3 days per week in Corsham Requirements: Seeking an experienced Full Stack Developer to support the design and delivery of a public facing government website aligned with GDS. This role focuses on building secure, scalable back-end services and accessible, maintainable … team, collaborating closely with front-end and back-end developers, solution architects, content designers and service leads to delivery user centred outcomes. Key responsibilities: Design, build, and maintain full-stack solutions supporting a public-sector digital platform Develop front-end user interfaces that are accessible, responsive, and aligned with ...

AI Product Engineer

Hiring Organisation
Adria Solutions
Location
Warrington, Cheshire, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
This is a hands-on engineering role focused on integrating commercial AI APIs into a .NET ecosystem not building models from scratch. You will design, develop, and deliver production-ready features that rely on services such as Anthropic Claude, AWS Bedrock, and OpenAI. AI-assisted development will … team where AI was embedded into real products and can bring proven patterns, practices, and standards into a new environment. What Youll Do Design and implement AI-powered product features within a C#/.NET stack Integrate commercial AI APIs into production systems with reliability and scalability in mind ...

Senior Software Engineer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
Ipswich, England, United Kingdom
holds up under real world pressure. What you will be doing: Designing and building scalable backend systems in Python, with a strong focus on API design and data handling Owning features end to end, from discovery through to deployment and iteration Contributing to architectural decisions across a microservices … team What they are looking for: Strong Python experience, with a track record of building and maintaining production systems Solid understanding of system design, particularly around APIs and distributed architectures Experience working with AWS and modern deployment practices Engineers who care about code quality, CI/CD, and building ...

Senior Software Engineer

Hiring Organisation
SR2
Location
Ipswich, Suffolk, United Kingdom
Employment Type
Permanent
Salary
£65000 - £70000/annum + benefits
holds up under real world pressure. What you will be doing: * Designing and building scalable backend systems in Python, with a strong focus on API design and data handling * Owning features end to end, from discovery through to deployment and iteration * Contributing to architectural decisions across a microservices … team What they are looking for: * Proven Python experience, with a track record of building and maintaining production systems * Solid understanding of system design, particularly around APIs and distributed architectures * Experience working with AWS and modern deployment practices * Engineers who care about code quality, CI/CD, and building ...

Technical Lead (AWS / PYTHON)

Hiring Organisation
Gleeson Recruitment Group
Location
Birmingham, West Midlands, West Midlands (County), United Kingdom
Employment Type
Permanent
Salary
£90000 - £102000/annum
responsibilities Define and evolve technical architecture in collaboration with enterprise architecture stakeholders Shape deployment, configuration and operational practices to drive consistency, automation and reliability Design and evolve AWS-based serverless microservices and APIs Make pragmatic architectural decisions that balance delivery pace, cost and long-term maintainability Ensure solutions … across the wider engineering function Essential Experience Strong hands-on backend development experience with Python Deep expertise in AWS serverless architecture , including: Lambda/API Gateway/S3/SQS/SNS/EventBridge/Step Functions Proven experience designing and delivering microservices and event-driven architectures Strong experience ...

Software Engineering Manager

Hiring Organisation
Leidos Innovations UK Limited
Location
Farnborough, Hampshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
exciting opportunity to use your experience supporting the Metropolitan Police contract. In this role, you will lead software engineering teams responsible for the design, development, and quality of applications and services. You will provide technical leadership and people management, ensuring engineering standards, best practices, and system integrity are consistently … date Managing interface changes and dependencies Maintaining traceability between ICDs and system requirements Collaborate with architects and technical leads on system design Ensure technical documentation is produced and maintained Support governance, compliance, and audit requirements Basic Qualifications Experience as a Software Engineering Manager or similar role Strong background ...

Head of Software Architecture Java AWS AI

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
development. As the Head of Software Architecture you will collaborate with Team Leads across the business to support them with technical architecture and design on large, complex, cloud based distributed systems, ensuring best practice and a cohesive structure. The tech stack is based on modern Java and AWS, using … agentic AI development tools and how to implement them and drive change within the business You have a strong knowledge of microservices architecture, API design, enterprise integration patterns, AWS cloud architecture You have a good understanding of modern software development practices e.g. TDD, CI/CD, DevOps, SecOps ...

Senior Full-Stack Engineer

Hiring Organisation
Addition
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 - £100,000 per annum
high standards for security, auditability, and compliance Main Skills Needed: Strong background in building and running production-grade systems Solid backend engineering expertise and API design experience Good understanding of relational databases and data modelling Experience working in regulated or audit-heavy environments Full stack capability across frontend ...

Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)

Hiring Organisation
Transreport
Location
City of London, London, United Kingdom
architecture Extensive experience with PostgreSQL, including performance tuning and complex queries. Experience with background job processing using Sidekiq and Redis. Solid understanding of RESTful API design, JSON serialization, and authentication (e.g., JWT, SSO). Hands-on experience with AWS services and containerised deployments (Docker). Experience troubleshooting ...

Python Engineer

Hiring Organisation
Harvey Nash
Location
Birmingham, West Midlands, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 per annum
working - 3 days per week onsite Salary up to £65,000 per annum A leading Birmingham-based client is seeking a Python Developer to design, build, and deploy applications using Python frameworks and LLM APIs. The position focuses on developing scalable, secure AI services in Azure's public cloud … involves hands-on work throughout the development lifecycle, including API design, data access, AI integration, and cloud deployment. Key skills and responsibilities: Design, develop, and maintain AI-driven applications and services utilising Python. Build and manage RESTful APIs with FastAPI. Integrate and oversee Large Language Models ...

Scala Developer

Hiring Organisation
SF Partners Admin
Location
United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
following key skills: - At least three years commercial scala programming - Strong framework experience (Akka, Play etc) - Relational database experience - PostgreSQL - MongoDB, NoSQL - RESTful API design and integration experience - Solid unit test understanding - Spec2, scalaTest etc - Experience working in a TDD/BDD driven environment - Containerization experience - Docker, Kubernetes … well-established friendly team then please apply now to be considered and for further details. Scala Developer Up to £80,000 Scala, REST Api, NoSQL, TDD/BDD, functional programming, CI/CD, Play, Akka ...

Ruby Developer

Hiring Organisation
Proactive Appointments
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 - 80,000 Annual
develop new features, enhance existing systems, and ensure our platform remains stable and efficient. Your deep understanding of Rails architecture, PostgreSQL optimisation, and API design will be essential as you contribute to ongoing development projects. If you enjoy collaborating in Agile/Scrum environments, value clean code ...

Full Stack Engineer

Hiring Organisation
Addition
Location
United Kingdom
high standards for security, auditability, and compliance Main Skills Needed: Strong background in building and running production-grade systems Solid backend engineering expertise and API design experience Good understanding of relational databases and data modelling Experience working in regulated or audit-heavy environments Full stack capability across frontend ...

Payments Engineer

Hiring Organisation
Fynity
Location
London Area, United Kingdom
worlds leading banks in their high-performing engineering teams, building asynchronous, message-driven systems designed for scale, resilience, and near-zero downtime. Design and implement high-throughput, low-latency systems processing millions of real-time payment events Build event-driven architectures using modern Java and reactive frameworks Work extensively … with non-blocking I/O, asynchronous flows, back-pressure, and concurrency Contribute to system and API design, focusing on scalability, fault tolerance, and observability Collaborate closely with architects, engineers, and client teams across Europe Operate in Agile environments (Scrum/Kanban) with a strong engineering culture Tech ...

Senior Solution Architect

Hiring Organisation
Arthur
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
with delivery teams, and accountable for turning architectural thinking into practical outcomes. Why This Opportunity Stands Out True Solution Architecture – You’ll own solution design from current-state assessment through to target architecture and delivery alignment. Greenfield thinking, real constraints – Apply modern architecture principles to a live, evolving estate … will: Assess existing applications and platforms and define clear target-state architectures Build and own system and application roadmaps aligned to business priorities Design scalable, modular solution architectures including integration and NFRs Lead migration and modernisation initiatives across legacy and cloud platforms Act as the architecture point of contact ...

Technical Architect: 6 Month Contract: Manchester/Hybrid

Hiring Organisation
Adecco
Location
Manchester, United Kingdom
Employment Type
Contract
month project (Outside IR35.) You will work closely with senior stakeholders and the wider team on both high and low level solution design to provide improvements on existing systems. Provide technical leadership and guidance throughout the project lifecycle, ensuring solutions are scalable, secure, and align with business objectives … complex enterprise solutions. Strong background in software development and system integration. Strong understanding of cloud platforms (AWS, Azure, Google Cloud) Experience with microservices architecture, API design, and integration patterns. Experience with DevOps practices and tools. Please apply now to be considered for this role. ...

Software Product Owner

Hiring Organisation
Robert Walters
Location
Warwick, Warwickshire, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £75,000 per annum
lifecycle Software Product Owner: Technical Experience React 18+ - Hooks, Context, Suspense, concurrent features Node.js/Express or Fastify - production APIs, middleware, error handling REST API design - versioning, error contracts, idempotency 3rd Party API Intergration AWS Jira AI - willing to leverage The permanent role for a Software Product ...

Software Engineer

Hiring Organisation
cto.new
Location
Greater London, England, United Kingdom
joining a small team building cto.new and shaping how it gets built. What we care about: Strong TypeScript and solid backend fundamentals - data modeling, API design, concurrency, failure modes Production experience with LLM features - tool-calling, prompt iteration, streaming, evals, cost and latency tuning AI-native workflow - fluent ...

Senior Firmware Engineer

Hiring Organisation
Smartbox Assistive Technology
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
budget and quality requirements, and coordinating others as needed. Firmware Architecture and Lifecycle: Develop reliable, portable firmware with a long-life cycle. Firmware Development: Design, develop and maintain embedded firmware in C for Zephyr RTOS and Embedded Linux, including board bring up, drivers and HALs. Code Quality and Standards … another scientific subject. 8+ years of experience in embedded software development in C. A strong knowledge of Computer Science fundamentals in data structures, algorithm design, problem-solving, and complexity analysis. A strong grounding in embedded software architecture, with a focus on maintainability, modularity, fault-tolerance and testability. Confident ...

Software Product Owner

Hiring Organisation
Robert Walters
Location
Solihull, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
plus bonus and a hybrid working model from the Solihull offices. Software Product Owner: Duties Product development and software knowledge is essential Design, implement automated systems & processes Lead key strategic software projects for customers Combination of building requirements from BA's, PM's and client-side leads Translate requirements … into key business outcomes Build rapport with developers and business stakeholders Strong knowledge of the software development lifecycle Software Product Owner: Technical Experience REST API design - versioning, error contracts, idempotency 3rd Party API Intergration AWS Jira AI - willing to leverage The permanent role for a Software Product ...

Software Developer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £585/day
complex risk calculations and high-throughput financial data processing. This is an environment where your technical expertise in Object-Oriented Programming (OOP) and API design will directly impact global operations and regulatory compliance. Key Responsibilities Engineering: Build scalable, testable, and maintainable applications using .NET Core and RESTful APIs … systems. Collaboration: Work alongside Quants, Risk Managers, and Front Office teams to translate business needs into technical reality. Architecture: Participate in high-level technical design and architectural discussions to evolve the platform. Requirements Technical Core: Extensive experience in C#, .NET, SQL Server, and CI/CD pipelines. Domain Expertise ...

Software Engineer

Hiring Organisation
MBDA UK
Location
Stevenage, Hertfordshire, United Kingdom
Employment Type
Permanent
Salary
£65000/annum
processing is essential to understanding system performance and planning spiral development paths. This is a very hands-on role and requires the continued design and development of complex system architectures and the instantiations for future products. This is a perfect opportunity for a Software Engineer who is proactive … complex problems - you will be working with a dedicated group of experienced software, and systems engineers. We maintain an impactful team culture. Responsibilities: Design and develop real-time/embedded software using C and C++. Architect and implement robust, scalable, and maintainable multi-threaded applications. Work with hardware teams ...

Backend Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £522/day
Expert Developer: Java experience (Spring Boot, Bazel, Maven) with a focus on distributed services and Kubernetes (GKE). System Designer: Strong skills in API design (gRPC, GraphQL, REST) and relational databases like PostgreSQL. Cloud Proficient: Hands-on experience with GCP services, including BigQuery and Cloud SQL. Security Minded ...

Director of Technical Delivery

Hiring Organisation
Wilmington plc
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Acting as a senior technical authority, championing Wilmington s composable, microservice-based platform strategy and making sound architectural decisions on integration approaches and system design • Proactively identifying and mitigating technical risks and support the CTO with technical due diligence for future acquisitions • Operating across multiple scrum teams, bridging project … architecture experience, providing the credibility to confidently interrogate system designs, integration strategies, and technical trade-offs • Strong expertise in composable, microservice-based architectures, including API design, event-driven integration, and service decomposition • Proven track record delivering large-scale platform integration or migration programmes across complex, multi-system ...

Director of Technical Delivery

Hiring Organisation
Wilmington plc
Location
EC4R, Cannon Street, Greater London, United Kingdom
Employment Type
Permanent
Acting as a senior technical authority, championing Wilmington’s composable, microservice-based platform strategy and making sound architectural decisions on integration approaches and system design • Proactively identifying and mitigating technical risks and support the CTO with technical due diligence for future acquisitions • Operating across multiple scrum teams, bridging project … architecture experience, providing the credibility to confidently interrogate system designs, integration strategies, and technical trade-offs • Strong expertise in composable, microservice-based architectures, including API design, event-driven integration, and service decomposition • Proven track record delivering large-scale platform integration or migration programmes across complex, multi-system ...