Senior Software Engineer - Backend, Infra, or AI Systems

Posted 17 hours 35 minutes ago by Talent Search PRO

£60,000 - £80,000 Annual
Permanent
Full Time
I.T. & Communications Jobs
Not Specified, United Kingdom
Job Description
Requirements
  • 3+ years of experience in backend, infra, or AI systems engineering
  • Strong Python skills
  • Familiarity with LLM frameworks and vector DBs
  • Experience with data infrastructure and cloud
  • Startup-ready
  • Builder mindset
Job Description

Join a high-caliber team to build core infrastructure for AI systems, focusing on agent orchestration, semantic data layers, and reasoning engines using Python and LLM frameworks.

Join our small but high-caliber engineering team and help build the core infrastructure behind our agentic systems. This is a hands-on role for someone excited to ship quickly, solve complex problems, and grow into new responsibilities as the company scales.

What You'll Work On:

  • Agent infrastructure: Build orchestration, memory, and execution logic for scalable autonomous systems using Python and open-source LLM frameworks (LangChain, LlamaIndex, etc).
  • Ontology & semantic data layers: Contribute to our automated systems that connect structured and unstructured data into a unified "data brain."
  • Reasoning engines: Help develop pipelines that combine LLMs with symbolic reasoning and long-term memory.
  • Data infrastructure: Build and maintain metadata stores, data connectors, ETL, and vectorized storage (Chroma, Pinecone, Weaviate).
  • Full-stack contributions: Ship APIs and basic frontends when needed to move fast and gather customer feedback.