iO Associates - UK/EU
Fullstack Developer
⭐ - Featured Role | Apply direct with Data Freelance Hub
This role is a Fullstack Developer position based in Southampton, hybrid (3 days on-site), with a contract length of over 6 months and a pay rate of up to £50K per annum. Key skills include .NET/C#, ReactJS, Azure, and API development. Only UK-based candidates with the right to work will be considered.
🌎 - Country
United Kingdom
💱 - Currency
£ GBP
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💰 - Day rate
227
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🗓️ - Date
October 15, 2025
🕒 - Duration
More than 6 months
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🏝️ - Location
Hybrid
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📄 - Contract
Fixed Term
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🔒 - Security
Unknown
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📍 - Location detailed
Hampshire, England, United Kingdom
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🧠 - Skills detailed
#IoT (Internet of Things) #Cloud #C# #NoSQL #Scala #Deployment #API (Application Programming Interface) #Databases #.Net #React #Azure #Monitoring #REST (Representational State Transfer) #SQL (Structured Query Language) #Automated Testing #GraphQL #DevOps
Role description
Full Stack Developer
Southhampton - Hybrid (3 days in a week on-site)
Salary: up to £50K per annum
Full Stack Developer is required for the company that relentlessly focuses on technology, design, and customer outcomes, the company offers real opportunity for professionals who thrive in high-impact, evolutionary environments. Their innovative systems optimize energy efficiency and sustainability across sectors like laundry, manufacturing, and HVAC
You will lead end-to-end development of scalable web applications using ReactJS, React Native, .NET, and Azure, including API design and IoT integrations. You will drive DevOps best practices with CI/CD, monitoring, and automated deployments and develop RESTful and GraphQL APIs, ensuring clean contracts for internal systems, third-party services, and IoT devices.
SKILLS:
• Fullstack expertise: .NET/C# and ReactJS.
• Cloud platforms (Azure preferred).
• REST/GraphQL API development.
• SQL/NoSQL or ADX databases.
• CI/CD and automated testing.
• Secure coding, OAuth2, Entra ID/B2C, RBAC.
You'll join the company that focus on technology, design, and customer outcomes, the company offers real opportunity for professionals who thrive in high-impact environment.
• P. S: Company cannot provide visa sponsorship, so only candidates residing in UK and with the existing right to work will be considered for the role.
Full Stack Developer
Southhampton - Hybrid (3 days in a week on-site)
Salary: up to £50K per annum
Full Stack Developer is required for the company that relentlessly focuses on technology, design, and customer outcomes, the company offers real opportunity for professionals who thrive in high-impact, evolutionary environments. Their innovative systems optimize energy efficiency and sustainability across sectors like laundry, manufacturing, and HVAC
You will lead end-to-end development of scalable web applications using ReactJS, React Native, .NET, and Azure, including API design and IoT integrations. You will drive DevOps best practices with CI/CD, monitoring, and automated deployments and develop RESTful and GraphQL APIs, ensuring clean contracts for internal systems, third-party services, and IoT devices.
SKILLS:
• Fullstack expertise: .NET/C# and ReactJS.
• Cloud platforms (Azure preferred).
• REST/GraphQL API development.
• SQL/NoSQL or ADX databases.
• CI/CD and automated testing.
• Secure coding, OAuth2, Entra ID/B2C, RBAC.
You'll join the company that focus on technology, design, and customer outcomes, the company offers real opportunity for professionals who thrive in high-impact environment.
• P. S: Company cannot provide visa sponsorship, so only candidates residing in UK and with the existing right to work will be considered for the role.
