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Twelve

Senior Software Engineer (.Net) - Contract

Twelve
United Kingdom · Contract · Mid-Senior

Senior Backend Engineer - .Net/C# - Contract


High-growth Energy & CarbonTech startup redefining how global enterprises manage environmental risk and sustainability data.


Helping at a pivotal moment as the company layers advanced AI capabilities over precision data.


Key Skills

  • .NET: deep C#/.NET skills and strong system design instincts.
  • Cloud & SaaS Native: experience working on multi-tenant SaaS platforms, specifically within AWS environments.
  • Data & API Specialists: database architecture skills with a mindset focused on scale, reliability, and maintainability.
  • AI Curiosity: prior experience or at least genuine interest in how backend systems enable LLMs and AI-driven features.


What You’ll Do

  • Design and evolve the core multi-tenant architecture, integration frameworks, and APIs.
  • Build the backend services and data pipelines that feed LLMs with real-time, accurate asset data.
  • Work across a platform connecting tools and creating elegant patterns for fast and reliable data ingestion.
  • Tackle event correlation across time and high-throughput data challenges where security and speed are paramount.


Please apply for more information.

Key Skills

Ranked by relevance

saas ai aws
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Posted
Apr 02, 2026
Type
Contract
Level
Mid-Senior
Location
London Area
Company
Twelve

Industries

IT Services IT Consulting Software Development

Categories

Information Technology

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