Backend Engineer

Product-Focused Backend Engineer – Functional Programming & Distributed Systems
London (Hybrid) | £120,000–£160,000 + Equity

At Ncounter, we’re partnering with a cutting-edge AI company on a mission to redefine how professionals in highly regulated industries interact with complex, multi-modal data. Their platform empowers users to deploy custom no-code AI agents that produce verifiable outputs with full transparency - ensuring trust, compliance, and control remain central to every decision.

As a Backend Engineer, you’ll join a growing team working at the forefront of AI infrastructure. This isn’t just about clean code or strong delivery - it’s about ownership, product intuition, and building for scale. You’ll be part of a lean, high-calibre engineering function where every member contributes to planning, testing, analysis, and execution.

What You’ll Be Doing:

• Building and evolving APIs that serve as the backbone for internal systems and customer-facing applications
  
  
• Scaling the platform to support heavy, multi-tenant usage patterns and high-throughput AI workloads
  
  
• Applying foundation models (GPT-4.1, Claude 4, Gemini 1.5 and successors) to real-world, multi-modal data challenges
  
  
• Shipping to production daily in collaboration with Product and Design to solve real user problems
  
  
• Playing an active role in shaping team goals, defining technical metrics, and prioritising outcomes over ticket-chasing
  
  Your Background:
  
  
• Hands-on experience with functional programming (Elixir is a plus, but other languages like Scala, Haskell, Clojure, Go, Node.js, or F# are welcome)
  
  
• Proven track record of building and scaling distributed backend systems
  
  
• Solid understanding of infrastructure-as-code and cloud orchestration (AWS, Terraform, Docker)
  
  
• Familiarity with queue management, observability tooling, and shipping in fast-paced environments
  
  
• Awareness of GenAI and prompt engineering, or a keen interest to develop expertise in this area
  
  
• A self-starter attitude, with a strong sense of product ownership and a passion for solving end-user challenges
  
  This is a unique opportunity to work on real-world applications of cutting-edge AI, contributing to a platform where engineering excellence and product thinking go hand-in-hand. If you're looking for a role with tangible impact and huge technical scope, we’d love to hear from you. Reach out today to start the conversation