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Haystack

Senior Full Stack Developer

Europe (non-EU)

October 9, 2026 at 11:29 AM

✨ AI summary

Location

  • Sheffield, England, United Kingdom

Programming Languages

  • C#
  • Python

Frameworks

  • .NET
  • React
  • SharePoint

Cloud Services

  • Azure Functions
  • Azure Logic Apps
  • Cosmos DB
  • Azure App Service
  • ARM/Bicep templates
  • Azure DevOps

Databases

  • Cosmos DB

Experience Level

  • Senior
We are working with a fast-growing and forward-thinking professional services organisation dedicated to innovation and delivering cutting-edge solutions for its clients.

The Role

  • Develop and implement hands-on full stack engineering solutions across modern engineering and cloud technologies.
  • Inspire and mentor a small development team, setting high standards for technical excellence.
  • Collaborate closely with Product, Architecture, and wider technical groups to build purpose-driven solutions.
  • Guide the organisation on its technology journey, focusing on solving real problems.
  • Explore and apply emerging technologies, including Artificial Intelligence and Machine Learning, to enhance solutions.
  • Work with Product Managers and business teams to prioritise and allocate development work.

What You'll Need

  • Strong experience as a hands-on Senior Full Stack Developer, capable of leading and setting standards.
  • Proficiency in C#, .NET platform, Python, and Azure PaaS (Azure Functions, Azure Logic Apps, Cosmos DB, Azure App Service, ARM/Bicep templates), SharePoint, and React.
  • AI-native judgment, including experience with GenAI tools like Co-Pilot, ChatGPT, or Claude.
  • In-depth understanding of Azure DevOps processes and Azure Resource Management.
  • Ability to understand the "why" behind development, not just the "how," and deliver real outcomes.
  • Experience guiding junior to mid-level developers within a team.

What's On Offer

  • Opportunity to work with modern engineering and cloud technologies with an AI edge.
  • A role that offers significant impact in shaping technology direction and standards.
  • A collaborative environment with cross-functional teams.
  • Flexibility with a mainly remote work setup.

Apply via Haystack today!