1 to 25 of 46 API Development Jobs in the South East

Senior Full Stack Engineer (Golang/Typescript/Kubernetes)

Hiring Organisation
Safe Intelligence
Location
Slough, Berkshire, UK
Employment Type
Full-time
experience of different types of architectures and understanding of the tradeoffs between them. In this role, you'll be a senior contributor to the development and operation of our cutting-edge cloud-based platform. You should have a passion for both science and engineering, a proven ability to deliver … contribute to our mission! Responsibilities: As a Safe Intelligence Full Stack Software Engineer, you will: Engineering of Golang-based backend systems, focusing on API development and integration. Engineering on our TypeScript-based frontend systems, primarily utilizing React to craft intuitive and highly functional user interfaces. Productize and enhance ...

C#.NET Developer - Financial Systems Developer

Hiring Organisation
Centre People Appointments
Location
Slough, Berkshire, UK
Employment Type
Full-time
candidates have led enhancements, maintenance, or improvements of existing systems. This position is especially suitable for those with hands-on experience in financial system development or financial IT consulting. Employment Type: Full-time, Permanent Salary: £50k-£65k depending on experience Start Date: Negotiable Working Hours: Monday to Friday … Server • Propose and implement improvements or new functionalities for existing systems • Coordinate with internal and external stakeholders Financial Systems Developer Ideal Candidate: • Development experience with C#.NET (3+ years preferred) • Experience with SQL and database operations • Knowledge of financial systems or financial operations (e.g., payments, settlements, reporting) is a plus ...

Full Stack Engineer (Web & Data)

Hiring Organisation
Templeton & Partners - Innovative & Inclusive Hiring Solutions
Location
Slough, Berkshire, UK
Employment Type
Full-time
provider is looking for a Full Stack Engineer (Web & Data) to join its growing Automation & Analytics team in London. This hybrid role blends web development with data engineering, offering exposure to everything from dynamic front‐end interfaces and API development to cloud‐based data pipelines and analytics … platforms. If you love combining creativity in web development with the logic and scalability of data engineering, this is your opportunity to grow in a cutting‐edge environment. What You'll Do Design, develop, and maintain end‐to‐end web applications—from intuitive front‐end interfaces to robust back ...

Senior Java Software Engineer

Hiring Organisation
CipherTek Recruitment
Location
Slough, Berkshire, UK
Employment Type
Full-time
basis. The successful candidate will work on an Electronic Trading Platform for the FIC business. This is an exciting opportunity to contribute to the development and integration of advanced trading technologies in a prestigious and fast-paced environment. Our client are in the process of a large multi year … concurrency. FIC Trading Systems: Experience developing, maintaining, or supporting electronic trading platforms. Messaging Protocols: Familiarity with FIX protocol, MQ, JMS, or similar messaging solutions. API Development: Experience with RESTful and/or SOAP web services. Low Latency Programming: Understanding of techniques for minimizing latency in trading applications. Spring ...

Senior Software Engineer Backend

Hiring Organisation
McGregor Boyall
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
networking and compliance. Collaborate with Agile teams to deliver high-quality, secure software at scale. Key Skills: Strong Node.js/NestJS and REST API development experience. Skilled in AWS Build and evolve backend services that support login, MFA, and client authentication Proficient with IaC, CI/CD (CloudFormation ...

SC Java Developer

Hiring Organisation
Sanderson Government and Defence
Location
South East London, London, United Kingdom
Employment Type
Permanent
Salary
£65,000
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 ...

Full Stack Engineer Python TypeScript

Hiring Organisation
Client Server
Location
Slough, Berkshire, UK
Employment Type
Full-time
focus on backend Python and TypeScript and some React work on the front end. You'll take ownership and work across the full development lifecycle, collaborating with customers to build and scale the product. The work is interesting and complex, you'll be able to contribute to the product … London office (close to Waterloo) with flexibility to work from home twice a week. About you: You have strong backend Python coding skills, including API development You have full stack experience, including TypeScript and React (or another framework) You have a good understanding of system design and scalability ...

Full Stack Developer

Hiring Organisation
Spectrum It Recruitment Limited
Location
Woking, Surrey, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
going to the office 1-2 days per week, therefore applicants must be within a commutable distance. Technical Requirements C#/.NET Blazor Azure API Development Entity Framework SQL TDD/BDD Desirables SaaS/multi-tenancy experience Azure DevOps and CI/CD pipelines Please apply ...

Machine Learning Engineer (0–3 Years Experience).

Hiring Organisation
IT Graduate Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £75,000 per annum, OTE
researchers, and founders. Freedom to experiment with state-of-the-art models, tools, and frameworks. Modern tech stack (Python, LangChain, Hugging Face, OpenAI API, Pinecone, Kubernetes, etc.). Flexible working — remote-first culture with in-person team sessions for collaboration. Career acceleration — opportunities to own projects, lead development … Data Pipelines, Prompt Engineering, Model Fine-Tuning, Cloud Computing, AWS, Azure, Google Cloud, AI Infrastructure, Transformers, Reinforcement Learning, Vector Databases, Pinecone, Weaviate, Semantic Search, API Development, AI Deployment, Model Serving, AI Automation, Early Stage Startup, AI Startups, Tech Startup, Machine Intelligence, Applied AI, AI Applications, AI Innovation ...

Solutions Architect

Hiring Organisation
Method-Resourcing
Location
St. Albans, Hertfordshire, South East, United Kingdom
Employment Type
Permanent
Salary
£95,000
Solutions Architect (Integration | API Design) St Albans (Hybrid) Compensation: £95,000 +Bonus +Equity Method Resourcing are proud to be partnering with a fast-growing, international technology business delivering critical services across multiple high-reliability sectors. They're seeking a Solutions Architect to lead the end-to-end technical design … seamless migration to a new, unified platform - ensuring zero downtime throughout. In addition, you'll lead the standardisation of tooling, practices, and documentation across development teams, establishing a single source of truth to drive consistency and quality in solution delivery. Key Responsibilities: Own and deliver end-to-end architecture ...

PHP Developer

Hiring Organisation
Tank Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Senior PHP Developer Location: Fully remote (You must be based in the UK) PHP - Laravel - MySQL - MongoDB - Git - cPanel - WHM - RESTful API - Apache Role Overview An established organisation is seeking an experienced Senior PHP Developer to join its development function. This role suits a highly autonomous developer … complex systems, working closely with project and technical leadership while operating independently on day-to-day delivery. You will be responsible for the design, development, enhancement, and optimisation of both existing PHP-based platforms and new systems, including APIs and database-driven solutions, hosted within dedicated server environments. ...

Senior Software Engineer (Full-stack)

Hiring Organisation
Primis
Location
Slough, Berkshire, UK
Employment Type
Full-time
Collaboration style - You work well with others but are equally effective independently Nice to Have: Experience with modern frontend frameworks (React, etc) Background in API development or distributed systems For more information, please apply! *Please note that this role will not be able to provide sponsorship support. Research ...

Front End Software Engineer - Blazor

Hiring Organisation
Spectrum It Recruitment Limited
Location
Woking, Surrey, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
will be a Front End Developer (Blazor) with a good eye for detail and an appreciation for UI/UX. Exposure to Back End development is beneficial but not essential for this role. The company are growing and this role offers scope to take on more responsibility with … development in the future. The role is hybrid working, going to the office 1-2 days per week, therefore applicants must be within a commutable distance. Essential Requirements: Commercial exposure with Blazor (1-2 years+) Proven experience collaborating with UX/UI Designers, Software Engineers, Testers and Product Managers ...

Head of Engineering: eCommerce

Hiring Organisation
Reward Gateway
Location
Slough, Berkshire, UK
Employment Type
Full-time
global marketplace meeting the needs of both users and merchants. You will oversee delivery across both web and mobile apps with an API-first cloud-based approach, applying your knowledge to simplify and refine operational processes. Some of Your Responsibilities & Core Duties will be to: Lead initiatives to enhance … personalised mobile-first shopping experiences. Contribute to the definition and delivery of Engineering roadmaps, anticipating technical challenges and managing interdependencies. Oversee the entire software development lifecycle, from conception to deployment and maintenance, ensuring high-quality outcomes across all phases. Implement best practices in coding, testing, and maintenance to enhance ...

Senior Lead Analyst - Data Science AI/ML & Gen AI - UK

Hiring Organisation
Infosys
Location
Basingstoke, Hampshire, UK
Employment Type
Full-time
seeking a Senior AI/ML & Generative AI Engineer with deep expertise in designing, developing, and deploying advanced AI solutions. This includes core Python development using OOPs concepts, Large Language Models (LLMs), and Agentic AI architectures. The ideal candidate will collaborate with clients to understand complex business challenges, architect … Markets. Your Role As a Senior Lead Analyst, you will: •Anchor the engagement effort from business process consulting and problem definition to solution design, development, and deployment. •Lead the discovery and definition of AI/ML solutions and guide teams on project processes and deliverables. •Act as a thought ...

Senior Lead Analyst - Data Science AI/ML & Gen AI - UK

Hiring Organisation
Infosys
Location
Slough, Berkshire, UK
Employment Type
Full-time
seeking a Senior AI/ML & Generative AI Engineer with deep expertise in designing, developing, and deploying advanced AI solutions. This includes core Python development using OOPs concepts, Large Language Models (LLMs), and Agentic AI architectures. The ideal candidate will collaborate with clients to understand complex business challenges, architect … Markets. Your Role As a Senior Lead Analyst, you will: •Anchor the engagement effort from business process consulting and problem definition to solution design, development, and deployment. •Lead the discovery and definition of AI/ML solutions and guide teams on project processes and deliverables. •Act as a thought ...

Senior Lead Analyst - Data Science AI/ML & Gen AI - UK

Hiring Organisation
Infosys
Location
Guildford, Surrey, UK
Employment Type
Full-time
seeking a Senior AI/ML & Generative AI Engineer with deep expertise in designing, developing, and deploying advanced AI solutions. This includes core Python development using OOPs concepts, Large Language Models (LLMs), and Agentic AI architectures. The ideal candidate will collaborate with clients to understand complex business challenges, architect … Markets. Your Role As a Senior Lead Analyst, you will: •Anchor the engagement effort from business process consulting and problem definition to solution design, development, and deployment. •Lead the discovery and definition of AI/ML solutions and guide teams on project processes and deliverables. •Act as a thought ...

Senior Lead Analyst - Data Science AI/ML & Gen AI - UK

Hiring Organisation
Infosys
Location
High Wycombe, Buckinghamshire, UK
Employment Type
Full-time
seeking a Senior AI/ML & Generative AI Engineer with deep expertise in designing, developing, and deploying advanced AI solutions. This includes core Python development using OOPs concepts, Large Language Models (LLMs), and Agentic AI architectures. The ideal candidate will collaborate with clients to understand complex business challenges, architect … Markets. Your Role As a Senior Lead Analyst, you will: •Anchor the engagement effort from business process consulting and problem definition to solution design, development, and deployment. •Lead the discovery and definition of AI/ML solutions and guide teams on project processes and deliverables. •Act as a thought ...

Senior Lead Analyst - Data Science AI/ML & Gen AI - UK

Hiring Organisation
Infosys
Location
Dartford, Kent, UK
Employment Type
Full-time
seeking a Senior AI/ML & Generative AI Engineer with deep expertise in designing, developing, and deploying advanced AI solutions. This includes core Python development using OOPs concepts, Large Language Models (LLMs), and Agentic AI architectures. The ideal candidate will collaborate with clients to understand complex business challenges, architect … Markets. Your Role As a Senior Lead Analyst, you will: •Anchor the engagement effort from business process consulting and problem definition to solution design, development, and deployment. •Lead the discovery and definition of AI/ML solutions and guide teams on project processes and deliverables. •Act as a thought ...

Senior Lead Analyst - Data Science AI/ML & Gen AI - UK

Hiring Organisation
Infosys
Location
Oxford, Oxfordshire, UK
Employment Type
Full-time
seeking a Senior AI/ML & Generative AI Engineer with deep expertise in designing, developing, and deploying advanced AI solutions. This includes core Python development using OOPs concepts, Large Language Models (LLMs), and Agentic AI architectures. The ideal candidate will collaborate with clients to understand complex business challenges, architect … Markets. Your Role As a Senior Lead Analyst, you will: •Anchor the engagement effort from business process consulting and problem definition to solution design, development, and deployment. •Lead the discovery and definition of AI/ML solutions and guide teams on project processes and deliverables. •Act as a thought ...

Senior Lead Analyst - Data Science AI/ML & Gen AI - UK

Hiring Organisation
Infosys
Location
Crawley, West Sussex, UK
Employment Type
Full-time
seeking a Senior AI/ML & Generative AI Engineer with deep expertise in designing, developing, and deploying advanced AI solutions. This includes core Python development using OOPs concepts, Large Language Models (LLMs), and Agentic AI architectures. The ideal candidate will collaborate with clients to understand complex business challenges, architect … Markets. Your Role As a Senior Lead Analyst, you will: •Anchor the engagement effort from business process consulting and problem definition to solution design, development, and deployment. •Lead the discovery and definition of AI/ML solutions and guide teams on project processes and deliverables. •Act as a thought ...

Senior Lead Analyst - Data Science AI/ML & Gen AI - UK

Hiring Organisation
Infosys
Location
Brighton, East Sussex, UK
Employment Type
Full-time
seeking a Senior AI/ML & Generative AI Engineer with deep expertise in designing, developing, and deploying advanced AI solutions. This includes core Python development using OOPs concepts, Large Language Models (LLMs), and Agentic AI architectures. The ideal candidate will collaborate with clients to understand complex business challenges, architect … Markets. Your Role As a Senior Lead Analyst, you will: •Anchor the engagement effort from business process consulting and problem definition to solution design, development, and deployment. •Lead the discovery and definition of AI/ML solutions and guide teams on project processes and deliverables. •Act as a thought ...

Senior Lead Analyst - Data Science AI/ML & Gen AI - UK

Hiring Organisation
Infosys
Location
Newport, Isle of Wight, UK
Employment Type
Full-time
seeking a Senior AI/ML & Generative AI Engineer with deep expertise in designing, developing, and deploying advanced AI solutions. This includes core Python development using OOPs concepts, Large Language Models (LLMs), and Agentic AI architectures. The ideal candidate will collaborate with clients to understand complex business challenges, architect … Markets. Your Role As a Senior Lead Analyst, you will: •Anchor the engagement effort from business process consulting and problem definition to solution design, development, and deployment. •Lead the discovery and definition of AI/ML solutions and guide teams on project processes and deliverables. •Act as a thought ...

Software Developer (.Net)

Hiring Organisation
Spectrum It Recruitment Limited
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
Salary
£65,000
Multi-Tenant Architecture within a B2B environment. Technical Requirements C#/.NET/.Net Core 8 Angular Or Razor pages/Blazor AWS - essential API Development Entity Framework Additional & Beneficial Skills: Mentoring or leadership experience Experience working with off-shore teams Experience within Engineering/Automotive sectors Please ...

API Developer - London

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Temporary
Salary
£400 - £460 per day
API Developer - London Atrium EMEA are looking for several API Developers to support the Development teams onsite with a client in London. 12+mths contract, 2 days onsite/3 days remote, PAYE/Umbrella options. - API Developer - Java, TDD, RESTful API design & build, OAS/…/CD Pipelines, Java Database-Hibernate/JPA, SonarQube, Veracode, Jira, Confluence Click Apply now or contact Lianne to be considered for the API Developer - London role ...