Michelle Brien

Tech Lead @Tally Workspace

London, GB

Founding Engineer & Technical Product Lead at Tally where I scaled an office space marketplace from early MVP into a high-growth platform, combining hands-on engineering delivery with ownership of core product direction.Led the end-to-end design, build, and iteration of key product areas including marketplace matching, search and discovery, payments and subscriptions, onboarding flows, and internal tools supporting sales and operations.Worked closely with founders and cross-functional stakeholders to drive product discovery, prioritisation, and roadmap decisions, translating customer and commercial insights into clear requirements and measurable improvements e.g. doubling conversion.Remain deeply technical and hands-on across the stack, building resilient systems in Ruby on Rails, Python, AWS, and third-party API integrations while maintaining a strong focus on scalability, UX, and conversion.Shipped AI-powered natural-language search and workflow automations using Rails, Sidekiq, PostgreSQL, n8n and LLM API integrations to improve customer discovery and internal efficiency.Act as a bridge between engineering, product, and the wider business, enabling fast iteration, strong alignment, and platform decisions grounded in both technical execution and user needs.

The University of Sheffield

Bachelor of Arts (B.A.), History

Le Wagon

Fullstack developer, Web Development