26 to 50 of 85 API Development Jobs

Senior Software Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£65,000
team Actively contribute within an Agile/SCRUM environment Essential Skills & Experience Strong TypeScript & Node.js skills Strong experience with React Proven experience in API development AWS Experience Experience building single-page applications (SPA) and applying progressive enhancement principles Strong CSS knowledge Strong understanding of secure coding practices Experience … working with SQL databases such as PostgreSQL Familiarity with test-driven development (TDD) Experience working within a cross-functional product development team Benefits Flexible working hours 25 days holiday + bank holidays Pension scheme New tech provided Senior Software Engineer (Full Stack) | Manchester, Hybrid ...

Software Engineer

Hiring Organisation
Addition
Location
Milton Keynes, Buckinghamshire, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
deployment, ensuring we meet the evolving needs of our customers with innovative, reliable software. Required Skills: Strong experience in C# and .Net Core development Proficiency with Web API design and development Solid understanding of REST principles and SOLID design patterns Hands-on experience with Docker, Kubernetes …/SCRUM methodologies, CI/CD, and DevOps practices Good communication skills and a collaborative team mindset Nice to Have Skills: Experience with Web API integrations and microservices architecture Knowledge of Kubernetes and container orchestration AWS or Azure certifications or experience Familiarity with WebSocket or real-time data streaming ...

Python AI Engineer

Hiring Organisation
Crisil
Location
London Area, United Kingdom
Engineer with Databricks exposure Overview We are looking for a Python AI Engineer (with Databricks exposure) with hands-on experience in Generative AI, backend development, and database-driven applications. The role involves designing and building AI-enabled applications, developing APIs and services to deploy AI models, and integrating them … with enterprise databases and cloud platforms. The candidate should be comfortable working across AI solution design, backend development, and data engineering. Key Responsibilities • Design and develop AI and Generative AI applications using Python. • Build backend services and APIs using Flask or Django for AI-powered systems. • Work with enterprise ...

Integration Lead - Secure Digital Platform

Hiring Organisation
ARM
Location
Reading, Berkshire, United Kingdom
Employment Type
Contract
Clearance - current and active SC Cleared already is strongly preferred Role Description The Integration Lead is responsible for leading the technical design, development, and delivery of secure, scalable, and reusable foundational technology services within the Secure Digital Platform. The Integration Lead partners with Delivery Leads, product owners and architects … delivered solutions align with solution designs and security guardrails. Guide teams in the selection and use of modern tools, frameworks, and platforms that optimise development efficiency and operational effectiveness for delivery. Support the development and evolution of the Secure Digital Platform roadmap by identifying technical dependencies, enablers ...

Java Back End Developer

Hiring Organisation
Vallum Associates
Location
London Area, United Kingdom
risk management and backend operations for both corporate and retail trading. You will also contribute to shaping the technical roadmap and improving the Software Development Life Cycle (SDLC). Key Responsibilities: Design, develop, and maintain high-performance backend services for complex data processing systems Architect scalable solutions for high … years of experience in software engineering with strong Core Java expertise At least 2 years of experience working with SQL databases Strong experience in API development and automation Familiarity with cloud platforms such as AWS, Azure, or GCP Experience working in Agile environments Hands-on experience with ...

Back End Engineer

Hiring Organisation
Zuma Labs
Location
Greater London, England, United Kingdom
/finance experience. Experience with writing unit and integration tests and maintaining CI/CD pipelines. Preferred Qualifications & Experience Experience with GraphQL or REST API development. Knowledge of asynchronous programming, message queues, or real-time streaming architectures. Familiarity with cloud platforms (AWS, GCP, Azure) and container orchestration (Kubernetes/ ...

Full Stack Engineer - Investment Management

Hiring Organisation
CBSbutler Holdings Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£800 - £1200 per day
drive engineering modernisation, cloud adoption, and scalable analytics capabilities within a fast-paced financial environment. You will play a key role in the design, development, and enhancement of enterprise-grade investment and credit trading technology solutions. The role combines hands-on engineering with modern cloud-native delivery practices, automation … assisted software development approaches Responsibilities include: * Develop and enhance full-stack applications supporting investment and trading workflows * Build and optimise cloud-based data platforms and pipelines using Snowflake and DBT * Deliver reporting and analytics solutions using Sigma and Power BI * Support .NET application modernisation and API development ...

Production Automation Engineer

Hiring Organisation
The Reserves Network Inc
Location
Omaha, Nebraska, United States
Employment Type
Permanent
Salary
USD Annual
direct deposit, and our referral bonus program Job Description We are seeking an experienced Production Automation Engineer with a strong focus on ServiceNow optimization, development, and automation . This role will be responsible for improving, expanding, and maintaining our ServiceNow environment while supporting automation initiatives across the enterprise. … ideal candidate combines strong technical development skills with a "product owner" mindset-someone who can troubleshoot legacy implementation issues, streamline user experiences, expand platform capabilities, and build automation that improves operational efficiency.This role supports multiple software products and integrations, with heavy emphasis on ServiceNow , PowerShell , C# , and REST APIs ...

Senior Azure Cloud Engineer

Hiring Organisation
Mars Recruitment
Location
Abingdon, Oxfordshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum Plus bonus & benefits
Azure CLI used regularly for automation, operational tasks, and reducing manual intervention. Azure Integration Services: proficient in Logic Apps, Service Bus, Event Grid, and API Management for integration design and implementation. API Development: solid experience with SOAP and REST APIs, including design, development, and secure management. … Summer event and 4 sponsored weekends a year. If you’re an Azure Cloud Engineer looking for a career defining opportunity with progression and development, then please drop Lee at MARS an application. MARS Recruitment is an equal opportunities employer and positively welcomes applications from suitably qualified applicants regardless ...

Senior Cloud Engineer

Hiring Organisation
Mars Recruitment
Location
Abingdon, Oxfordshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum Plus bonus & benefits
Azure CLI used regularly for automation, operational tasks, and reducing manual intervention. Azure Integration Services: proficient in Logic Apps, Service Bus, Event Grid, and API Management for integration design and implementation. API Development: solid experience with SOAP and REST APIs, including design, development, and secure management. … Summer event and 4 sponsored weekends a year. If you’re an Azure Cloud Engineer looking for a career defining opportunity with progression and development, then please drop Lee at MARS an application. MARS Recruitment is an equal opportunities employer and positively welcomes applications from suitably qualified applicants regardless ...

Full Stack Java Developer

Hiring Organisation
Brio Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500/hour
performing engineering team. You will take a lead role in the design and delivery of complex, enterprise-scale solutions, bringing strong Java, AWS, and API expertise to a programme that is making a real difference to patient care across the country. KEY RESPONSIBILITIES Lead the design and development … applying well-architected principles throughout Design, develop, and test REST APIs to a high standard, ensuring performance, reliability, and security Use Postman for API testing, documentation, and validation across development and test environments Contribute to architectural decisions and technical standards alongside the Technical Architect Carry out thorough code ...

Full-Stack Web Software Engineer - React, ASP.NET & C#

Hiring Organisation
Computer Futures
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
£85,000
Full-Stack Software Engineer (React & ASP.NET/C#) We're looking for a Full-Stack Software Engineer to join a growing development team building modern, business-critical web applications. This role suits someone who enjoys working across the full stack and takes pride in owning features from initial concept … through to deployment. You'll be involved in both front-end and back-end development, working closely with other engineers, product owners, and stakeholders to deliver clean, scalable, and user-focused solutions. What you'll be doing Designing and building front-end web applications using React Developing and maintaining ...

Senior Python Developer - Banking Experience

Hiring Organisation
Akkodis
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
high-availability, data-intensive applications Collaborate with engineering, data, and business teams Required Experience Strong Python experience (Django, Flask or FastAPI) Proven backend/API development experience Experience within banking or financial services Exposure to cloud (AWS/Azure/GCP) and modern engineering practices Nice To Have ...

C Sharp Developer (Blazor)

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Farnborough, Hampshire, UK
Employment Type
Full-time
Angular framework to build and support frontend web applications Strong experience with Razor/Blazor is important for this role Experience of RESTful API development within microservice architecture Experience of deploying to cloud architecture within Kubernetes Experience delivering new functionality and changes to established financial applications Experience working … part of a collaborative development team, contributing to code reviews and shared delivery Experience supporting applications in production environments, including troubleshooting and root cause analysis Ability to work from written specifications or JIRA stories, refining solutions independently Experience working with analysts and testers to refine requirements and support delivery ...

C Sharp Developer (Blazor)

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Farnborough, Hampshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £500 per day
Angular framework to build and support frontend web applications Strong experience with Razor/Blazor is important for this role Experience of RESTful API development within microservice architecture Experience of deploying to cloud architecture within Kubernetes Experience delivering new functionality and changes to established financial applications Experience working … part of a collaborative development team, contributing to code reviews and shared delivery Experience supporting applications in production environments, including troubleshooting and root cause analysis Ability to work from written specifications or JIRA stories, refining solutions independently Experience working with analysts and testers to refine requirements and support delivery ...

.NET Developer

Hiring Organisation
Spectrum IT Recruitment
Location
Southampton, England, United Kingdom
Work on a mix of greenfield development and the modernisation of existing business-critical applications , making a real impact while expanding your technical skillset. An exciting opportunity has opened for a Full Stack Developer to join a growing and forward-thinking organisation in Hampshire. Following new leadership within … systems and digital capabilities. Full Stack Developer Hampshire | Hybrid Working | £45,000 – £50,000 You’ll be working as part of a collaborative development team , helping to design, build, and maintain modern applications and APIs that support both internal teams and customer-facing services. What You'll Be Doing ...

Full Stack Engineer

Hiring Organisation
Brio Digital
Location
United Kingdom
performing engineering team. You will take a lead role in the design and delivery of complex, enterprise-scale solutions, bringing strong Java, AWS, and API expertise to a programme that is making a real difference to patient care across the country. KEY RESPONSIBILITIES Lead the design and development … applying well-architected principles throughout Design, develop, and test REST APIs to a high standard, ensuring performance, reliability, and security Use Postman for API testing, documentation, and validation across development and test environments Contribute to architectural decisions and technical standards alongside the Technical Architect Carry out thorough code ...

Python Developer Backend (AI) - remote

Hiring Organisation
Initialize Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£60,000
excellent opportunity to join this innovative and fast-growing AI tech. organisation! Skills/experience 2+ years solid commercial Python coding experience (backend, API development would be great). Good understanding of Docker, Kubernetes, and scalable distributed systems . An Agile mindset and Experience working in agile teams ...

Python Back-end Developer

Hiring Organisation
Initialize
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £60,000 per annum
excellent opportunity to join this innovative and fast-growing AI tech. organisation! Skills/experience 2+ years solid commercial Python coding experience (backend, API development would be great). Good understanding of Docker, and scalable distributed systems . An Agile mindset and Experience working in agile teams, using ...

SC Java Developer

Hiring Organisation
Sanderson Government and Defence
Location
South East London, London, United Kingdom
Employment Type
Permanent
Salary
£60,000
What You'll Work On You'll be developing robust, secure, and efficient services using modern Java frameworks and tooling. Expect to contribute to API development, containerised applications, and cross-functional engineering initiatives. Must-Have Skills Strong commercial experience with Java Hands-on expertise with RESTful APIs Proficiency ...

Senior SOAR Engineer

Hiring Organisation
Smartedge Solutions Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Cloud Platform (GCP) Microsoft Azure Deep understanding of cyber security frameworks and methodologies: MITRE ATT&CK NIST Cybersecurity Framework Strong knowledge of SOAR integrations, API development, and enterprise security operations Preferred Qualifications Experience within Banking, Financial Services, or highly regulated enterprise environments Relevant cloud certifications (especially GCP) Linux ...

Data Science Specialist

Hiring Organisation
Anson McCade
Location
England, United Kingdom
clients to translate requirements into scalable solutions Contributing to internal capability growth and innovation across AI offerings Ideal Background Active DV clearance Strong Python development experience in a production ML environment Experience with one or more of the following: RAG (including Graph RAG) Agentic AI systems and architectures Computer … deployment Understanding of data governance and secure system design Nice to have: GPU utilisation in cloud environments Monitoring and observability for ML systems API development experience CI/CD pipelines and DevOps/Data Engineering practices What You’ll Receive Competitive salary and comprehensive benefits package 25 days ...

Python Developer

Hiring Organisation
Peaple Talent
Location
England, United Kingdom
concurrency for large-scale processing • Monitoring, troubleshooting and improving a broad range of AWS services What they’re looking for: • 5+ years’ professional Python development experience • Strong understanding of API development principles • Hands-on background with ETL pipelines & concurrent processing • Experience working with ...

Python Developer

Hiring Organisation
Peaple Talent
Location
Greater Bristol Area, United Kingdom
concurrency for large-scale processing • Monitoring, troubleshooting and improving a broad range of AWS services What they’re looking for: • 5+ years’ professional Python development experience • Strong understanding of API development principles • Hands-on background with ETL pipelines & concurrent processing • Experience working with ...

Automation Engineer

Hiring Organisation
ALFA TECHNOLOGY RECRUITMENT LTD
Location
South East London, London, United Kingdom
Employment Type
Permanent
Salary
£600 per day Fully Remote
automation pipelines and network environments Create clear and concise technical documentation Contribute to evolving automation standards and best practices What Were Looking For Automation & Development Strong Python skills, including API development, integration, and testing Experience writing high-quality, testable code and participating in code reviews Hands ...