Senior Software Engineer - AI & Search

At Halcyon Labs , we build solutions that bring structure, clarity, and insight to messy real-world data. Our work sits at the intersection of AI, search, and real business impact — used daily by leading organizations like the Bank of England, Standard Chartered, and the European Central Bank. We are looking for a Senior Software Engineer to join our Engineering team in EMEA, helping build and scale the next generation of intelligent search and generative AI solutions. What You’ll Do Engineer with purpose: Design, implement, and improve search and AI components powering our platform — where performance, scalability, and reliability really matter. Solve hard problems: Work across NLP, retrieval, generative AI, and distributed systems to build features that make messy data usable and valuable. Collaborate: Partner closely with product and fellow engineers — turning ideas into concrete solutions that work at scale. Keep it simple: Bring clarity to complexity. Cut through noise with clean designs, maintainable code, and practical solutions. Own it: Take responsibility from design to deployment, measuring and improving your work with the right metrics. What You Bring Strong experience building and scaling backend systems — ideally search- or data-heavy, and in Python. Solid knowledge of Elasticsearch (or similar) and distributed systems fundamentals. Familiarity with NLP techniques, Retrieval-Augmented Generation, or broader AI/ML concepts (or the curiosity to go deep fast). A pragmatic mindset: you care about results, reliability, and simplicity, not just shiny tech. Comfort working in a collaborative, fast-moving environment where ideas quickly turn into production. Why Join Us Impact: Your work won’t disappear into a pipeline — you’ll see it used by some of the world’s leading organizations. Growth: Work on cutting-edge problems in AI and search, alongside experienced engineers who value curiosity and learning. Culture: Agile, startup-like, with quick decision-making and plenty of room to contribute ideas. Balance: We believe in continuous feedback, lifelong learning, and supporting personal growth. About Halcyon Labs Halcyon Labs is the enterprise AI platform built for regulated industries, streamlining enterprise search and automating complex, custom workflows. Secure, private, scalable, permissions-aware, and fully auditable, the platform ensures that every result is accurate and verifiable. Halcyon Labs powers agentic AI applications that are grounded in the organization’s unique enterprise ontology. Further information about AI-driven business insights can be found at: https://squirro.com/ Originally posted on Himalayas