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Date posted
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1 Contract API job in East Grinstead + 20 miles
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Next 11 Ventures is a UK-based software incubator created to build, scale and exit high-value software businesses. We operate as an active partner, not a passive holding entity, working hand-in-hand with founders and management teams to unlock growth. Currently Next11 Ventures is seeking a Full Stack Developer to support the development of a growing portfolio of software products focused on workforce, operational and AI-enabled systems. This is an opportunity to join a small, fast-moving team working across multiple live platforms, with direct involvement in both technical delivery and product development. You will work closely with founders and stakeholders to help design, build and improve applications used within recruitment, workforce management, compliance and operational environments. Key Responsibilities * Design and develop full-stack web applications
Next 11 Ventures is a UK-based software incubator created to build, scale and exit high-value software businesses. We operate as an active partner, not a passive holding entity, working hand-in-hand with founders and management teams to unlock growth. Currently Next11 Ventures is seeking a Full Stack Developer to support the development of a growing portfolio of software products focused on workforce, operational and AI-enabled systems. This is an opportunity to join a small, fast-moving team working across multiple live platforms, with direct involvement in both technical delivery and product development. You will work closely with founders and stakeholders to help design, build and improve applications used within recruitment, workforce management, compliance and operational environments. Key Responsibilities * Design and develop full-stack web applications
127 exact matches jobs are outside your preferred location
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Software Developer - Full Stack
Software Developer - Full Stack
AWD Online
Hounslow (TW4)
From £35,000 to £40,000 per annum pro rata + Benefits
API Knowledge: Familiarity with RESTful APIs, microservices and integration patterns
API Knowledge: Familiarity with RESTful APIs, microservices and integration patterns
Senior Full Stack Developer (TypeScript / Vue.js / C# / .NET) Fully Remote (UK-based) Contract Outside IR35 - Long-Term Contract - Competitive Day Rate - Were working with a well-established organisation undergoing a major platform transformation programme, and theyre looking to add an experienced Full Stack Developer to the team. This role will suit someone who enjoys owning features end-to-end, with strong frontend expertise while remaining comfortable working across APIs, databases, and backend services in a modern environment. What Youll Be Doing * Developing and enhancing customer-facing platforms and transactional systems * Building modern applications using Vue.js and TypeScript * Working closely with product, QA, and engineering teams to deliver new features * Investigating and resolving production issues across frontend, APIs, and databases
Senior Full Stack Developer (TypeScript / Vue.js / C# / .NET) Fully Remote (UK-based) Contract Outside IR35 - Long-Term Contract - Competitive Day Rate - Were working with a well-established organisation undergoing a major platform transformation programme, and theyre looking to add an experienced Full Stack Developer to the team. This role will suit someone who enjoys owning features end-to-end, with strong frontend expertise while remaining comfortable working across APIs, databases, and backend services in a modern environment. What Youll Be Doing * Developing and enhancing customer-facing platforms and transactional systems * Building modern applications using Vue.js and TypeScript * Working closely with product, QA, and engineering teams to deliver new features * Investigating and resolving production issues across frontend, APIs, and databases
FS React Native Developer - Trading London Outside IR35
FS React Native Developer - Trading London Outside IR35
Transparent Technology
London
£450 - £500 per day
Full-Stack Developer (React Native / Java) | London Hybrid | FinTech | Outside IR35 | React, React Native, Java, AWS | £450-500/day - A growing financial technology company is scaling its engineering team as it builds the next generation of modern web and mobile products for global users. With continued investment into digital platforms and infrastructure, they are looking for experienced Full-Stack Developers to support a major product and technology transformation programme. This role will focus on building scalable applications using React or React Native alongside backend services and APIs using Java. You'll work across frontend architecture, integrations, CI/CD pipelines, microservices, and cloud-native systems, helping deliver secure, high-performance products in a collaborative engineering environment. * 6+ years of full-stack engineering experience
Full-Stack Developer (React Native / Java) | London Hybrid | FinTech | Outside IR35 | React, React Native, Java, AWS | £450-500/day - A growing financial technology company is scaling its engineering team as it builds the next generation of modern web and mobile products for global users. With continued investment into digital platforms and infrastructure, they are looking for experienced Full-Stack Developers to support a major product and technology transformation programme. This role will focus on building scalable applications using React or React Native alongside backend services and APIs using Java. You'll work across frontend architecture, integrations, CI/CD pipelines, microservices, and cloud-native systems, helping deliver secure, high-performance products in a collaborative engineering environment. * 6+ years of full-stack engineering experience
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Work closely with Digital, Data, API, and Salesforce teams to align delivery across multiple workstreams. * Experience working across Data, API, Digital, and CRM teams within complex enterprise environments.
Work closely with Digital, Data, API, and Salesforce teams to align delivery across multiple workstreams. * Experience working across Data, API, Digital, and CRM teams within complex enterprise environments.
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The Microsoft Entra ID Architect is responsible for defining the target state architecture for enterprise identity using Microsoft Entra ID, with a strong focus on Identity Governance, Secure Access, and API driven provisioning. Design API first provisioning patterns using - Microsoft Graph API Proven architecture experience with Graph API, SCIM, Lifecycle Workflows.
The Microsoft Entra ID Architect is responsible for defining the target state architecture for enterprise identity using Microsoft Entra ID, with a strong focus on Identity Governance, Secure Access, and API driven provisioning. Design API first provisioning patterns using - Microsoft Graph API Proven architecture experience with Graph API, SCIM, Lifecycle Workflows.
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QA Engineer Automation
QA Engineer Automation
Halian Technology Limited
Maidenhead Thicket, Maidenhead (SL6)
Up to £400 per day
API testing and backend validation
API testing and backend validation
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Connectivity: Design PL/SQL interfaces to handle RESTful API operations.
Connectivity: Design PL/SQL interfaces to handle RESTful API operations.
FEATURED
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Strong skills in Apex, Lightning Web Components, API integrations
Strong skills in Apex, Lightning Web Components, API integrations
FEATURED
Troubleshooters: You should be comfortable with API integrations, OAuth, and web standards.
Troubleshooters: You should be comfortable with API integrations, OAuth, and web standards.
FEATURED
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Monitor, troubleshoot, and optimise data processing workflows and API performance.
Monitor, troubleshoot, and optimise data processing workflows and API performance.
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The database is overwhelmingly write-driven (high-volume API request and ping logging).
The database is overwhelmingly write-driven (high-volume API request and ping logging).
Technical Troubleshooting: Experience with Chrome Developer Tools, API integrations, and investigating error codes.
Technical Troubleshooting: Experience with Chrome Developer Tools, API integrations, and investigating error codes.
FEATURED
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Mainframe Middleware Infrastructure Engineer (CICS Liberty)
Mainframe Middleware Infrastructure Engineer (CICS Liberty)
Gazelle Global Consulting Ltd
London
Unspecified
REST/API enablement and modern integration practices - This is an excellent opportunity to work on critical banking and financial services infrastructure whilst helping modernise core mainframe platforms with contemporary Java and API technologies.
REST/API enablement and modern integration practices - This is an excellent opportunity to work on critical banking and financial services infrastructure whilst helping modernise core mainframe platforms with contemporary Java and API technologies.
Build and manage secure API bridges to link platforms and allow them to share data efficiently.
Build and manage secure API bridges to link platforms and allow them to share data efficiently.
FEATURED
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Software Fundamentals: Background in solid software engineering practices (Git, testing, design patterns, API development via FastAPI/Flask).
Software Fundamentals: Background in solid software engineering practices (Git, testing, design patterns, API development via FastAPI/Flask).
FEATURED
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Product Manager - IAM / CIAM
Product Manager - IAM / CIAM
Sanderson Recruitment
City of London (EC1), EC1
£650 - £700 per day + Umbrella engagement
Strong understanding of security concepts (e.g. web/API security, OAuth, IAM)
Strong understanding of security concepts (e.g. web/API security, OAuth, IAM)
FEATURED
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Monitor API performance metrics * Experience with Open Banking APIs, API performance monitoring, incident reporting or regulatory frameworks is highly desirable.
Monitor API performance metrics * Experience with Open Banking APIs, API performance monitoring, incident reporting or regulatory frameworks is highly desirable.
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API integration and automation
API integration and automation
FEATURED
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We're currently partnering with a leading organisation in the utilities sector that is undergoing significant investment in customer-facing technology and digital transformation. As part of this journey, we're looking to appoint an experienced Solution Architect to join a central architecture function supporting a broad portfolio of business-critical change initiatives. This role sits within the Customer domain and will play a key part in shaping and delivering technology solutions that improve customer experience, support operational excellence, and enable long-term business strategy. The successful candidate will work closely with business stakeholders, delivery teams, engineers, and technical specialists to define end-to-end solutions and provide architectural leadership throughout the delivery lifecycle. What you'll be doing -
We're currently partnering with a leading organisation in the utilities sector that is undergoing significant investment in customer-facing technology and digital transformation. As part of this journey, we're looking to appoint an experienced Solution Architect to join a central architecture function supporting a broad portfolio of business-critical change initiatives. This role sits within the Customer domain and will play a key part in shaping and delivering technology solutions that improve customer experience, support operational excellence, and enable long-term business strategy. The successful candidate will work closely with business stakeholders, delivery teams, engineers, and technical specialists to define end-to-end solutions and provide architectural leadership throughout the delivery lifecycle. What you'll be doing -
PREMIUM
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Experience with infrastructure-as-code, production-grade Linux environments, and API services (Flask/Gunicorn).
Experience with infrastructure-as-code, production-grade Linux environments, and API services (Flask/Gunicorn).
FEATURED
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Contract Data Architect GCP
Contract Data Architect GCP
Crosstide
The City, City of London (EC3), EC3V 3NB
Very competitive day rate
Data Architect / Principal Data Engineer (GCP) Contract: Initial 3 Months - Location: Fully Remote - Status: Outside IR35 - We are looking for a highly experienced Data Architect / Principal Data Engineer with deep, hands-on GCP expertise to support a major data transformation programme within a regulated financial services environment. This is not an advisory role. We need someone who has personally designed, built and owned enterprise-scale GCP data platforms in production and can lead both architecture and delivery. Key Requirements * 7+ years' hands-on experience with Google Cloud Platform (GCP) o BigQuery - o Dataflow - o Pub/Sub - o Python - o APIs and containerised services * Strong data architecture experience, including conceptual, logical and physical data modelling * Experience establishing governance frameworks, metadata management, data quality standards and AI-ready data foundations
Data Architect / Principal Data Engineer (GCP) Contract: Initial 3 Months - Location: Fully Remote - Status: Outside IR35 - We are looking for a highly experienced Data Architect / Principal Data Engineer with deep, hands-on GCP expertise to support a major data transformation programme within a regulated financial services environment. This is not an advisory role. We need someone who has personally designed, built and owned enterprise-scale GCP data platforms in production and can lead both architecture and delivery. Key Requirements * 7+ years' hands-on experience with Google Cloud Platform (GCP) o BigQuery - o Dataflow - o Pub/Sub - o Python - o APIs and containerised services * Strong data architecture experience, including conceptual, logical and physical data modelling * Experience establishing governance frameworks, metadata management, data quality standards and AI-ready data foundations
FEATURED
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Principal Technical Lead
Principal Technical Lead
RSSB
The City, City of London (EC3), EC3M 5AD
Competitive salary aligned to public-interest and not-for-profit secto
Ensure engineering standards are followed across the team: coding conventions, API design, security practices, and code review processes. * Experience with API and application security.
Ensure engineering standards are followed across the team: coding conventions, API design, security practices, and code review processes. * Experience with API and application security.
FEATURED
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Enterprise Architect - Adobe Experience Platform
Enterprise Architect - Adobe Experience Platform
Robert Walters
London
£550 - £640 per day + inside IR35
Contract Enterprise Architect (Adobe Experience Platform/ AEP) We're looking for a senior Enterprise Architect to drive high-impact digital transformation for Adobe's top-tier customers. You'll partner with C-suite, marketing, and technical leaders to shape future-state marketing architectures, unlock value from complex ecosystems, and bring 'Art of the Possible' experiences to life - What you'll do, as the Enterprise Architect (Adobe Experience Platform/ AEP) * Lead architecture and strategy across enterprise marketing ecosystems * Define future-state solutions spanning CDP, CRM, personalization, and analytics * Translate complex technology into clear, compelling stories for senior stakeholders * Diagnose challenges fast and deliver actionable digital roadmaps * Support sales opportunities and drive measurable customer value
Contract Enterprise Architect (Adobe Experience Platform/ AEP) We're looking for a senior Enterprise Architect to drive high-impact digital transformation for Adobe's top-tier customers. You'll partner with C-suite, marketing, and technical leaders to shape future-state marketing architectures, unlock value from complex ecosystems, and bring 'Art of the Possible' experiences to life - What you'll do, as the Enterprise Architect (Adobe Experience Platform/ AEP) * Lead architecture and strategy across enterprise marketing ecosystems * Define future-state solutions spanning CDP, CRM, personalization, and analytics * Translate complex technology into clear, compelling stories for senior stakeholders * Diagnose challenges fast and deliver actionable digital roadmaps * Support sales opportunities and drive measurable customer value
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Contract Enterprise Architect - £725 inside IR35 - London x3 dpw - 6 months
Contract Enterprise Architect - £725 inside IR35 - London x3 dpw - 6 months
Exalto Consulting ltd
London
£725 per day
Exalto consulting are currently recruiting for a contract Principle Architect, this is paying £725 per day inside IR35, 3 days a week in London and initially 6 months. * Proven ability to design and deliver fault-tolerant, high-availability systems at enterprise scale — spanning cloud infrastructure, APIs, front-end and back-end stacks. * Architecture domain breadth across at least one of: Enterprise, Solution, Data, Business, Infrastructure, Applications or Process architecture. * A credible engineering coach — comfortable guiding teams on refactoring approaches, deployment pipelines, security practices and design-driven development. * Commercially minded, with the ability to construct and defend multi-year investment cases and total cost of ownership models. * Demonstrable record of cutting through complexity to align senior technical and business stakeholders around a ...
Exalto consulting are currently recruiting for a contract Principle Architect, this is paying £725 per day inside IR35, 3 days a week in London and initially 6 months. * Proven ability to design and deliver fault-tolerant, high-availability systems at enterprise scale — spanning cloud infrastructure, APIs, front-end and back-end stacks. * Architecture domain breadth across at least one of: Enterprise, Solution, Data, Business, Infrastructure, Applications or Process architecture. * A credible engineering coach — comfortable guiding teams on refactoring approaches, deployment pipelines, security practices and design-driven development. * Commercially minded, with the ability to construct and defend multi-year investment cases and total cost of ownership models. * Demonstrable record of cutting through complexity to align senior technical and business stakeholders around a ...
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