17 of 17 Remote/Hybrid Contract API Design Jobs

Senior Solution Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £500 per day
embark on a journey along with an organization to becoming the best tech, modern luxury, and sustainable mobility company in the world. The Enterprise API portfolio is here to enable seamless new customer experiences across all our iconic brands. We are scaling our API operations and looking … teams and provide technical leadership in designing evolvable systems that can scale to meet our customer needs. Help guide development using JLR API patterns and practices. As part of the team, you will collaboratively be designing, implementing, and run API technology solutions on our platform. Drive the strategic ...

Senior Azure API Engineer

Hiring Organisation
Vermillion Analytics
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £750/day
Senior Azure API Engineer Outside IR35 | £(Apply online only)/day | Remote/Hybrid UK The Role Lead the design and delivery of enterprise-grade API solutions on Azure. You'll architect scalable, secure API platforms that unlock business value from data and drive monetization opportunities. … Platform team, you'll build the critical integration layer connecting internal teams and external customers to consistent, reliable data services. What You'll Do Design and operationalise a lean, zero-trust API platform on Azure API Management Architect microservices and event-driven integration flows at scale Define ...

Application Architect

Hiring Organisation
Experis
Location
South Croydon, London, United Kingdom
Employment Type
Contract
Contract Rate
£710.00 - £735.00 per day
site Due to the urgency and sensitivity of the work, active SC Clearance is mandatory . Responsibilities As an Application Architect, you will: Design and lead delivery of scalable, high-performance application architectures Define and apply modern application architecture patterns , including microservices, event-driven architectures, and SOA Support monolith … microservices transformation initiatives where required Architect cloud-native applications across AWS, Azure, and/or GCP Design API strategies , integration patterns, and messaging-based solutions Ensure strong alignment with application lifecycle management , CI/CD pipelines, and DevOps practices Work closely with platform and engineering teams to align ...

Lead Full-Stack Developer

Hiring Organisation
Experis
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day
hands-on development with technical leadership, working closely with architects, product stakeholders, and client teams to deliver secure, scalable software solutions. Responsibilities Front End Design and build modern, responsive user interfaces Develop using React, TypeScript, JavaScript, HTML, CSS Drive strong UX and cross-browser compatibility Back End Design and develop APIs and services Build server-side logic using Java (Spring Boot) Contribute to overall application architecture Data & DevOps Design and maintain relational databases (PostgreSQL preferred) Implement CI/CD pipelines (e.g. GitHub Actions, Jenkins) Deploy and operate services in cloud environments (AWS, Azure ...

Senior Golang/Java Security Engineer

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
vulnerability types SAST, SCA, and DAST, including the strengths and weaknesses of each At least one major cloud provider (e.g. AWS, GCP, Azure) REST API design HTTP Authentication Linux at the terminal, including scripting and automation (e.g. shell, Python) Some other highly valued skills may include: Experience with ...

Senior Salesforce Developer

Hiring Organisation
Salt Search
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
telco, working fully remote from Hungary. Blend of hands-on Salesforce engineering, integrations, and AI-driven solutions in an Agile (Scrum) environment. Key responsibilities Design and develop high-quality solutions on Salesforce Service Cloud and Sales Cloud based on business requirements. Contribute actively to the customer's Salesforce development … community, sharing best practices and patterns. Build, enhance, and maintain Lightning components, Apex classes/triggers, flows, and complex configuration. Design and implement integrations with various internal and external systems, with and without middleware, following Force.com API best practices and integration patterns. Support the design and development ...

Application Security Engineer

Hiring Organisation
Atrium Global
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £550 to £650 per day
strengths and weaknesses of each At least one programming language (e.g. Java, Go) At least one major cloud provider (e.g. AWS, GCP, Azure) REST API design HTTP Authentication Linux at the terminal, including scripting and automation (e.g. shell, Python) Some other highly valued skills may include: Experience with ...

React Native developer

Hiring Organisation
Experis
Location
Knutsford, Cheshire, United Kingdom
Employment Type
Contract
Contract Rate
£430/day
full-stack development capability, disciplined engineering practices, and experience working in Agile environments. The role involves contributing across the full software development lifecycle, from design and development through testing, deployment, and ongoing support, with a strong emphasis on code quality, security, and automation. Key Responsibilities Design, develop … maintain React Native (Web) applications with a focus on performance, reliability, and maintainability Build and support Java-based backend services for enterprise-scale applications Design and implement RESTful APIs , including documentation using OpenAPI Specification (OAS)/YAML Apply Test-Driven Development (TDD) principles across frontend and backend components Write ...

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 ...

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 ...

AI Architect

Hiring Organisation
Lorien
Location
Edinburgh, Midlothian, Scotland, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Hands-on technical skills in: Python (Azure SDKs, data workflows) C#/.NET (system integration) React (PoC and demo interfaces) Strong knowledge of: REST API design Azure AI pipelines and orchestration Cognitive Search (semantic, keyword, hybrid) OCR, KVP extraction and document layout analysis Experience building: Speech transcription solutions ...

Senior Developer

Hiring Organisation
Reed.co.uk
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£80,000 per annum
development experience. Proven success in high-performing engineering teams in fast-paced environments. Deep expertise in development with: Python (Django, Flask, or FastAPI) PostgreSQL (design, optimisation, maintenance) Containerisation (Docker/Kubernetes) Event-driven architecture (Kafka/RabbitMQ) Nice to have experience with: TypeScript/JavaScript (NextJS, NodeJS, Tailwind) Terraform … DevOps Experience building and scaling SaaS platforms in production. Strong background in software architecture, microservices, and API design. Hands-on experience with AWS platform. Track record of delivering high-quality software under tight timelines. Strong communication skills, able to motivate and align technical teams. Experience with AI tools, APIs ...

Salesforce Engineer

Hiring Organisation
Experis
Location
Knutsford, Cheshire, United Kingdom
Employment Type
Contract
delivery-focused technology team. The role requires strong hands-on development capability across Salesforce and Java, with a clear emphasis on modern engineering practices, API design, and test-driven development. This position is suited to a senior engineer who is comfortable working within CI/CD-driven environments … contributing to high-quality, scalable enterprise solutions. Key Responsibilities Design, develop, and maintain Salesforce-based solutions using Java and modern engineering practices Build and consume RESTful APIs, ensuring robust and secure integrations Apply Test-Driven Development (TDD) and Behaviour-Driven Development (BDD) approaches where applicable Produce and maintain OpenAPI ...