Backend Software Engineer — Applied ML & LLM Systems (Applied ML)

TL;DR

Backend Software Engineer (Applied ML): Building production systems to extract, enrich, and structure information from unstructured data with an accent on NLP, retrieval, and LLM-powered workflows. Focus on implementing RAG, BM25, and hybrid search systems to automate real estate agency migrations and tenant management.

Location: Remote

Company

hirify.global is a UK-based, AI-enabled lettings and property management platform that automates business processes for real estate agencies through technology and operational excellence.

What you will do

• Build production systems to extract structured data from emails, documents, and other unstructured sources.
• Develop solutions to summarize client communication history and surface relevant context within the platform.
• Improve retrieval and ranking systems using RAG, BM25, embeddings, hybrid search, and reranking.
• Create Python backend services and APIs using frameworks like FastAPI, Django, or Flask.
• Define quality metrics, evaluation datasets, and feedback loops for extraction and summarization systems.
• Integrate ML/LLM workflows into production with robust error handling and observability.

Requirements

• Strong Python backend engineering experience.
• Production experience with NLP, ML, information extraction, retrieval, and ranking systems.
• Practical experience with retrieval systems such as RAG and hybrid search.
• Proven ability to take research prototypes into production environments.
• Strong understanding of evaluation metrics, LLM limitations, and hallucination risks.
• Ability to build reliable services around ML workflows, including monitoring and testing.

Nice to have

• Experience building AI or LLM agents.
• Knowledge of document understanding, email parsing, or CRM enrichment.
• Experience with vector databases or search infrastructure.
• DevOps or CI/CD experience for deploying ML-backed services.
• Proficiency in typed languages such as TypeScript, Java, C#, or Kotlin.

Culture & Benefits

• Fully remote work arrangement.
• Competitive salary and potential for equity options based on performance.
• Opportunity to work on high-leverage automation at the intersection of backend engineering and applied ML.
• Culture based on customer obsession, passion for invention, and long-term thinking.