76 to 100 of 120 API Integration Jobs in the South East

Payment Architect

Hiring Organisation
Stackstudio Digital Ltd
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Contract
should not exclude otherwise strong candidates: Knowledge of BIAN, TOGAF, ArchiMate or C4. Experience with Avolution Abacus or similar architecture tools. Familiarity with microservices, API integration patterns and cloud concepts such as AWS. Exposure to global banking environments or large scale payment transformations. ...

Payment Architect

Hiring Organisation
Stackstudio Digital Ltd
Location
Luton, Bedfordshire, South East, United Kingdom
Employment Type
Contract
should not exclude otherwise strong candidates: Knowledge of BIAN, TOGAF, ArchiMate or C4. Experience with Avolution Abacus or similar architecture tools. Familiarity with microservices, API integration patterns and cloud concepts such as AWS. Exposure to global banking environments or large scale payment transformations. ...

Payment Architect

Hiring Organisation
Stackstudio Digital Ltd
Location
Watford, Hertfordshire, South East, United Kingdom
Employment Type
Contract
should not exclude otherwise strong candidates: Knowledge of BIAN, TOGAF, ArchiMate or C4. Experience with Avolution Abacus or similar architecture tools. Familiarity with microservices, API integration patterns and cloud concepts such as AWS. Exposure to global banking environments or large scale payment transformations. ...

Full Stack Engineer

Hiring Organisation
Reed Professional Services
Location
Slough, Berkshire, UK
Employment Type
Full-time
successful candidate will have a proven track record in both front-end and back-end development, with strong skills in Java, Python, and API development. You will be instrumental in building and maintaining scalable, high-quality applications that deliver exceptional user experiences. Day-to-day of the role: Develop … logic. Implement responsive and visually appealing front-end designs using HTML, CSS, JavaScript, and modern frameworks like React, Angular, or Vue. Design and manage API integrations, ensuring seamless data flow between different software components. Work with SQL and NoSQL databases to store and retrieve application data efficiently. Use version ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Southampton, UK
Employment Type
Full-time
expert in everything, but you should be confident working with: React Native or Swift/SwiftUI Node.js/Python backend PostgreSQL/Firebase API integrations Authentication & subscriptions Experience Required: 4+ years professional engineering experience. Experience shipping and maintaining mobile apps. Strong ability to take product requirements and turn them ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
High Wycombe, Buckinghamshire, UK
Employment Type
Full-time
expert in everything, but you should be confident working with: React Native or Swift/SwiftUI Node.js/Python backend PostgreSQL/Firebase API integrations Authentication & subscriptions Experience Required: 4+ years professional engineering experience. Experience shipping and maintaining mobile apps. Strong ability to take product requirements and turn them ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Woking, Surrey, UK
Employment Type
Full-time
expert in everything, but you should be confident working with: React Native or Swift/SwiftUI Node.js/Python backend PostgreSQL/Firebase API integrations Authentication & subscriptions Experience Required: 4+ years professional engineering experience. Experience shipping and maintaining mobile apps. Strong ability to take product requirements and turn them ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Dartford, Kent, UK
Employment Type
Full-time
expert in everything, but you should be confident working with: React Native or Swift/SwiftUI Node.js/Python backend PostgreSQL/Firebase API integrations Authentication & subscriptions Experience Required: 4+ years professional engineering experience. Experience shipping and maintaining mobile apps. Strong ability to take product requirements and turn them ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Basingstoke, Hampshire, UK
Employment Type
Full-time
expert in everything, but you should be confident working with: React Native or Swift/SwiftUI Node.js/Python backend PostgreSQL/Firebase API integrations Authentication & subscriptions Experience Required: 4+ years professional engineering experience. Experience shipping and maintaining mobile apps. Strong ability to take product requirements and turn them ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Portsmouth, Hampshire, UK
Employment Type
Full-time
expert in everything, but you should be confident working with: React Native or Swift/SwiftUI Node.js/Python backend PostgreSQL/Firebase API integrations Authentication & subscriptions Experience Required: 4+ years professional engineering experience. Experience shipping and maintaining mobile apps. Strong ability to take product requirements and turn them ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Maidstone, Kent, UK
Employment Type
Full-time
expert in everything, but you should be confident working with: React Native or Swift/SwiftUI Node.js/Python backend PostgreSQL/Firebase API integrations Authentication & subscriptions Experience Required: 4+ years professional engineering experience. Experience shipping and maintaining mobile apps. Strong ability to take product requirements and turn them ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Guildford, Surrey, UK
Employment Type
Full-time
expert in everything, but you should be confident working with: React Native or Swift/SwiftUI Node.js/Python backend PostgreSQL/Firebase API integrations Authentication & subscriptions Experience Required: 4+ years professional engineering experience. Experience shipping and maintaining mobile apps. Strong ability to take product requirements and turn them ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Slough, Berkshire, UK
Employment Type
Full-time
expert in everything, but you should be confident working with: React Native or Swift/SwiftUI Node.js/Python backend PostgreSQL/Firebase API integrations Authentication & subscriptions Experience Required: 4+ years professional engineering experience. Experience shipping and maintaining mobile apps. Strong ability to take product requirements and turn them ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Oxford, Oxfordshire, UK
Employment Type
Full-time
expert in everything, but you should be confident working with: React Native or Swift/SwiftUI Node.js/Python backend PostgreSQL/Firebase API integrations Authentication & subscriptions Experience Required: 4+ years professional engineering experience. Experience shipping and maintaining mobile apps. Strong ability to take product requirements and turn them ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Reading, Berkshire, UK
Employment Type
Full-time
expert in everything, but you should be confident working with: React Native or Swift/SwiftUI Node.js/Python backend PostgreSQL/Firebase API integrations Authentication & subscriptions Experience Required: 4+ years professional engineering experience. Experience shipping and maintaining mobile apps. Strong ability to take product requirements and turn them ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Crawley, West Sussex, UK
Employment Type
Full-time
expert in everything, but you should be confident working with: React Native or Swift/SwiftUI Node.js/Python backend PostgreSQL/Firebase API integrations Authentication & subscriptions Experience Required: 4+ years professional engineering experience. Experience shipping and maintaining mobile apps. Strong ability to take product requirements and turn them ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Newport, Isle of Wight, UK
Employment Type
Full-time
expert in everything, but you should be confident working with: React Native or Swift/SwiftUI Node.js/Python backend PostgreSQL/Firebase API integrations Authentication & subscriptions Experience Required: 4+ years professional engineering experience. Experience shipping and maintaining mobile apps. Strong ability to take product requirements and turn them ...

Marketing Automation Manager

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
technical stakeholders Proficient in SFMC modules: Email Studio, Journey Builder, Automation Studio Strong knowledge of AMPscript and SQL for data manipulation Experience with API integrations and troubleshooting complex workflows Understanding of lifecycle marketing, segmentation, and personalisation strategies Familiarity with GDPR and data compliance in marketing automation Ability to diagnose ...

Senior Full Stack Engineer (Golang/Typescript/Kubernetes)

Hiring Organisation
Safe Intelligence
Location
Slough, Berkshire, UK
Employment Type
Full-time
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 … result/metric aggregations. Collaborate closely with our scientific and technical teams to interface with and containerize our PyTorch-based verification toolkit. Champion an API-first development approach to deliver feature-rich, versioned interfaces that support both our TypeScript user interface and Python-based SDKs. Develop and maintain Infrastructure ...

Senior QA Engineer

Hiring Organisation
WeDo Technology Solutions Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 per annum
Responsibilities: • Take ownership of quality and test risk, shaping release confidence and engineering decisions across the platform• Define and evolve test strategies across unit, integration, contract, and UI layers, aligned to the test pyramid• Deliver hands on automation and quality engineering across two key domains: AI agents … systems• Programming experience in C# .NET or Python• Solid database knowledge and hands on experience working with data driven systems• Experience testing and validating API integrations• Exposure to security and load testing practices• Strong CI/CD pipeline experience, ideally using Azure DevOps• Performance testing experience using tools such ...

One Trust Developer

Hiring Organisation
Stackstudio Digital Ltd
Location
Luton, Bedfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
From £475 to £480 per day
preference updates, legal notices, system-triggered actions). Basic knowledge of JavaScript for CMP front-end deployment (cookie banners, scripts). Strong understanding of API integrations, RESTful services, and event streaming. Knowledge with customer data platforms (event routing, identity resolution, integration setup). Good understanding and knowledge ...

Data Engineering Manager

Hiring Organisation
Ashdown Group
Location
South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum
bonus, private healthcare and more! A large and growing retail business are looking to expand their IT function with the addition of a Data Integration Manager. This role will focus on end to end data engineering and integration solutions for a company wide modernisation programme. Duties will include … Managing the processes for data engineering and data integration in order to align to business needs - Leading a team across engineering and integration - Work to ensure the data infrastructure of the business effectively supports analytics, AL, machine learning ML and reporting - Designing of data pipelines, ETL, ELT processes ...

Data Engineer

Hiring Organisation
Hays Talent Solutions
Location
Uxbridge, Middlesex, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
security across systems. Collaborate with Data Scientists and Analysts to enable advanced analytics. Implement best practices for scalability and performance in cloud environments. Support integration of MRO AI Solutions into business operational workflows. Design data architecture and pipelines that support multi-OpCo deployment, ensuring modularity and interoperability. Required Skills … Experience Expertise in Python, SQL, and modern ETL frameworks. Hands-on experience with cloud platforms (AWS preferred). Strong knowledge of data modelling and API integration. Proven experience in developing, testing, and deploying data solutions into production environments, ensuring reliability, scalability, and maintainability beyond proof-of-concept or prototype ...

Data Engineer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Harmondsworth, West Drayton, Middlesex, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
security across systems. Collaborate with Data Scientists and Analysts to enable advanced analytics. Implement best practices for scalability and performance in cloud environments. Support integration of MRO AI Solutions into business operational workflows. Design data architecture and pipelines that support multi-OpCo deployment, ensuring modularity and interoperability. Required Skills … Experience Expertise in Python, SQL, and modern ETL frameworks. Hands-on experience with cloud platforms (AWS preferred). Strong knowledge of data modelling and API integration. Proven experience in developing, testing, and deploying data solutions into production environments, ensuring reliability, scalability, and maintainability beyond proof-of-concept or prototype ...

Dynamics 365BC Development Maager

Hiring Organisation
Conspicuous
Location
Southampton, UK
Employment Type
Full-time
delivery oversight, client engagement, and team management. You'll play a key role in driving complex Business Central solutions to success — from architecture and integration to execution and team growth. What you'll be doing: • Leading and mentoring a high-performing Business Central development team • Contributing to hands … budget management, and KPIs What we're looking for: • Strong technical background in Microsoft Dynamics 365 Business Central • Expert in AL language, customisations, and API integrations • Experience managing development teams and software delivery projects • Solid grasp of Azure, DevOps, CI/CD pipelines, and modern software practices • Excellent communication ...