76 to 100 of 130 API Design Jobs in England

Back End Developer

Hiring Organisation
Prism Digital
Location
London Area, United Kingdom
that don’t yet have perfect answers. What You’ll Work With Python development at a high level FastAPI or adjacent Python backend frameworks API design and backend architecture fundamentals PostgreSQL and/or MongoDB React or React Native for frontend collaboration AWS serverless infrastructure Docker for bespoke ...

Senior Full Stack Engineer

Hiring Organisation
Nusku
Location
City Of Bristol, England, United Kingdom
succeed: Must-haves: Strong proficiency in modern software development (e.g., PHP/Laravel, JavaScript/Vue.js, or equivalent). Solid understanding of RESTful API design and integration. Experience designing and maintaining scalable, modular, and production-ready codebases. Proficiency with relational databases (e.g., MySQL, PostgreSQL). Familiarity with Docker ...

Senior Backend Engineer [Django]

Hiring Organisation
QOVES
Location
Greater London, England, United Kingdom
rapidly growing user base. Expect a fast-paced, high-autonomy role where your work directly impacts the future of the product. Key Responsibilities Design and implement new backend endpoints and services using Django, Python, and FastAPI building on the existing codebase Build and maintain scalable REST APIs, integrating PostgreSQL … updates, and storage Drive performance, security, and scalability best practices as we scale rapidly in the next 6-12 months Collaborate closely with Product, Design, and Frontend teams to deliver seamless and intuitive user experiences Own key architectural decisions while mentoring engineers and elevating backend engineering standards Build data ...

Full Stack Software Engineer

Hiring Organisation
Bolt Technical Limited
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
develop a LAMP-based full-stack platform Audit, refactor, and improve legacy code without full rewrites Introduce modern front-end frameworks (React, Vue, Angular) Design and maintain APIs (REST/GraphQL) Improve performance, security, and scalability Contribute to DevOps, CI/CD, and cloud infrastructure Mentor junior developers … best practices What Theyre Looking For Senior full-stack experience in a LAMP environment Strong PHP and MySQL skills Experience with modern JavaScript frameworks API design experience Comfortable in a hands-on, pragmatic, small-team environment Strong communication and problem-solving skills Package & Benefits ...

Senior Salesforce Developer

Hiring Organisation
Atrium Global
Location
Chesterfield, Derbyshire, East Midlands, United Kingdom
Employment Type
Contract
Contract Rate
From £500 to £550 per day
IR35) Sector: Banking Key Skills & Experience Salesforce +5 years experience AND/OR React Native (Web) +5 years Java +5 years TDD, BDD RESTful API design & build OAS/YAML Unit Testing GitLab CI/CD Pipelines Agile practitioner, SonarQube, Veracode, Jira, Confluence Banking/Financial services background ...

Backend Engineer (TypeScript/Ruby)

Hiring Organisation
Oliver Bernard
Location
City of London, London, United Kingdom
experiences at scale. Package 💷 £70–90k + 5% bonus 🏢 Hybrid (2 days onsite, London) What you’ll do Own the full lifecycle of services: API design, architecture, deployment, and production Build an internal platform delivering consistent, real-time communications across multiple digital touchpoints Collaborate with Product, Data, Marketing ...

Mid-Level Back End Developer

Hiring Organisation
The Genius Group (TGG)
Location
Altrincham, England, United Kingdom
TypeScript Familiarity and experience with PostgreSQL, Sequelize, Jest, Docker, PM2 and Redis patterns. Experience writing tests with Jest or similar frameworks Understanding of RESTful API design principles Good problem-solving skills and attention to detail Key communication skills What We Offer: Competitive salary (depending on experience) Opportunities ...

Staff Engineer

Hiring Organisation
Corecom Consulting
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£110000 - £130000/annum
10+ years) Expert-level Python, with deep understanding of async patterns and performance optimisation Proven experience designing and scaling distributed systems Strong background in API design, data-intensive systems, and service architecture Track record of building platforms that operate reliably under heavy load Nice to have: Experience with ...

Monitoring Tools Support Specialist

Hiring Organisation
Accenture
Location
London Area, United Kingdom
Tooling Expertise: Use Prometheus, Grafana, and Dynatrace for data collection, visualisation, and deep-dive analysis. •Proficiency in Prometheus, Grafana, and Dynatrace. •Strong knowledge of API design, data modelling, and pipelines. •Experience with automation, monitoring platforms, and scripting languages (e.g., Python, PowerShell, Bash, Terraform and Ansible) to enhance operational ...

Mobile App Developer - London

Hiring Organisation
Square One Resources
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 450 - 537 Daily
PubSub, Secret Manager). Observability: Experience implementing and utilising observability and monitoring tools (eg, Grafana, Splunk) to maintain system health and diagnose issues. API Design: Experience designing and developing REST APIs and associated QA tools. Technical Experience Preferred Engineering Practices: Passion for Software Craftsmanship with experience in Pair ...

Senior Software Engineer

Hiring Organisation
Stott and May
Location
City of London, London, United Kingdom
onsite) Salary: Up to £80k DOE Type: Perm Job Description We are looking for a passionate Senior Java Engineer in London to lead the design and development of core product features and services that power an app used by thousands of travellers on a daily basis. As a Senior … impactful product features Ensure the quality of the features you built, follow-up on usage/issues post release. Work closely with product and design team to deliver new features that align with the needs of the business Provide technical leadership and mentoring to other engineers on the team ...

Back End Developer

Hiring Organisation
Stott and May
Location
London Area, United Kingdom
onsite) Salary: Up to £80k DOE Type: Perm Job Description We are looking for a passionate Senior Java Engineer in London to lead the design and development of core product features and services that power an app used by thousands of travellers on a daily basis. As a Senior … impactful product features Ensure the quality of the features you built, follow-up on usage/issues post release. Work closely with product and design team to deliver new features that align with the needs of the business Provide technical leadership and mentoring to other engineers on the team ...

Web Developer - Remote (PHP, .JS, SQL)

Hiring Organisation
Metaskil Limited
Location
Stroud, Gloucestershire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
their team and help enhance the company’s core digital infrastructure. You will demonstrate strong full-stack development experience with Laravel/PHP for API development and front-end frameworks such as Vue.js (or similar), a familiarity with Node.js and experience with CMS platforms and content/data migrations. … addition, you will have proven experience with relational databases (MySQL) and familiarity with NoSQL databases (MongoDB). Experience with API design and integrations, connecting multiple business systems and an understanding of authentication, authorisation, and web security best practices. You will be proficient with Git version control, containerisation tools ...

Full Stack (Web) Developer

Hiring Organisation
Metaskil Limited
Location
Stroud, Gloucestershire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £48,000 per annum
full stack, and wants to contribute to a mission-critical platform. You will demonstrate strong full-stack development experience with Laravel/PHP for API development and front-end frameworks such as Vue.js (or similar), a familiarity with Node.js and experience with CMS platforms and content/data migrations. … addition, you will have proven experience with relational databases (MySQL) and familiarity with NoSQL databases (MongoDB). Experience with API design and integrations, connecting multiple business systems and an understanding of authentication, authorisation, and web security best practices. You will be proficient with Git version control, containerisation tools ...

Software Integration Engineer

Hiring Organisation
Akkodis
Location
Stevenage, England, United Kingdom
Role We’re seeking a skilled integration engineer to join our software & integration team. In this role, you’ll be responsible for the discovery, design, and documentation of integrations across our cloud platforms, enabling seamless data flow between systems. You’ll work closely with software engineers, business analysts, cloud … architects, and QA teams to deliver scalable and maintainable integration solutions Responsibilities Design and develop integrations for implementation within a low-code/no-code environment Collaborate with business analysts and solution architects to translate business requirements into integration solutions Document integration designs, data flows, and technical specifications clearly ...

Senior Quant Developer

Hiring Organisation
OpenBet
Location
London Area, United Kingdom
team's services such as Alerting for Traders. · Manages data pipelines on the cloud and ensures they are efficient and scalable. · Implements new design patterns for coding best practice in object-oriented programming and communicates them to the team. · Engages with client-facing teams to understand customer's needs … from idea to integration. · Acts as a mentor for junior team members and leads regular knowledge share sessions on subjects like sports betting models, API design, and cloud solutions. The Player · A postgraduate qualification in Data Science, Machine Learning, Statistics, Mathematics or a closely related quantitative field. · 5+ ...

Business Analyst

Hiring Organisation
Horwich Farrelly
Location
Salford, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
with business objectives. Map as-is and to-be processes, identifying automation opportunities and efficiency gains. Collaborate with developers and testers on data flows, API contracts, and test coverage. Support backlog refinement and prioritisation, ensuring stories are ready for sprint planning. Contribute to UX validation and user journey mapping … Azure AI/OpenAI. Experience with insurance or legal processes. Familiarity with Azure Dev Ops for capturing epics, features and user stories. Understanding of API design and basic technical concepts. About the team Robert Buxton, Product Owner, shares his perspective: "This BA role is all about bridging ...

Salesforce & React Native Developer

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
Inside IR35) Sector: Banking Key Skills & Experience Salesforce +5 years experience AND OR React Native (Web) +5 years Java +5 years TDD, BDD RESTful API design & build OAS/YAML Unit Testing GitLab CI/CD Pipelines Agile practitioner, SonarQube, Veracode, Jira, Confluence Banking/Financial services background ...

Salesforce &/ React Native Developer

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
IR35) Sector: Banking Key Skills & Experience Salesforce +5 years experience AND/OR React Native (Web) +5 years Java +5 years TDD, BDD RESTful API design & build OAS/YAML Unit Testing GitLab CI/CD Pipelines Agile practitioner, SonarQube, Veracode, Jira, Confluence Banking/Financial services background ...

C# Developer

Hiring Organisation
VIQU IT
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 300 - 350 Daily
Developer: Must have a strong background in C#/.NET development. Experience of PostgresSQL or other SQL databases. CI/CD experience. Experience in API design and building system integrations. Microsoft Dynamics integration (highly desirable). Python and/or JavaScript experience (desirable). Excellent communication skills ...

C# Developer

Hiring Organisation
VIQU IT
Location
Manchester, United Kingdom
Employment Type
Contract
Contract Rate
£300 - £350/day Outside IR35
Developer: Must have a strong background in C#/.NET development. Experience of PostgresSQL or other SQL databases. CI/CD experience. Experience in API design and building system integrations. Microsoft Dynamics integration (highly desirable). Python and/or JavaScript experience (desirable). Excellent communication skills ...

C# Developer

Hiring Organisation
VIQU IT
Location
London, Coleman Street, United Kingdom
Employment Type
Contract
Contract Rate
£300 - £350/day
Developer: Must have a strong background in C#/.NET development. Experience of PostgresSQL or other SQL databases. CI/CD experience. Experience in API design and building system integrations. Microsoft Dynamics integration (highly desirable). Python and/or JavaScript experience (desirable). Excellent communication skills ...

Senior Platform Software Engineer - Mobile Apps

Hiring Organisation
Advanced Resource Managers Limited
Location
East London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £540 per day
Experience - Java/Kotlin with Spring and Spring Boot - Google Cloud Platform (Cloud Run, Pub/Sub, Secret Manager) - Observability tools (Grafana, Splunk) - REST API design - TDD, pair programming, mobbing - Strong communication and mentoring - Git Preferred Experience - DevOps/CI/CD - Load & performance testing - Mobile integration experience ...

AI Systems Architect

Hiring Organisation
Adria Solutions
Location
Winsford, Cheshire, North West, United Kingdom
Employment Type
Permanent
term progression for the right individual. The Role This position sits at the intersection of systems architecture, backend engineering, and platform reliability. You will design and build the infrastructure that connects distributed edge environments with backend services, ensuring systems are scalable, observable, and robust in production. The role … problems rather than operating purely at a conceptual level. Key Responsibilities Own and evolve end-to-end system architecture across edge and backend environments Design and build backend services and APIs using Go and Python Develop scalable data ingestion, messaging, and telemetry pipelines Support containerised deployments and system reliability ...

Senior Software Engineer

Hiring Organisation
ZEREN
Location
Greater London, England, United Kingdom
founding team Build technology that fundamentally changes how teams use data What We Are Looking For Strong experience building in Python Deep understanding of design patterns and system architecture Experience building scalable, performant platforms Strong grasp of event-driven systems and concurrency Solid database and API design … Have Zero-to-one product experience, including OSS or side projects Data engineering experience such as pipelines and analytics Experience integrating LLMs, including prompt design and understanding model capabilities Deeper cloud experience, especially with GCP Experience with Encore, though this is easy to pick up Ways of Working Ownership ...