Senior Software Engineer, TuneLab

At Lilly, the work is demanding because patients are waiting. We unite caring with discovery to help make life better for people around the world, knowing that every decision, every detail, and every day matters. Headquartered in Indianapolis, Indiana, our over 50,000 employees around the globe take on complex challenges to discover and deliver life‑changing medicines, strengthen how health is understood and managed, and support the communities we serve.

This is hard, urgent, selfless work—but it’s work worth doing. If you’re driven by purpose and ready to bring your best to work that truly matters for patients, we invite you to join us.

Lilly Catalyze
360 is a comprehensive approach to enabling the early‑stage biotech ecosystem by democratizing access to infrastructure, expertise, and resources. Through its interconnected pillars–Lilly Ventures, Lilly Gateway Labs, Lilly ExploR&D, and Lilly Tune Lab–Catalyze
360 strategically removes barriers that traditionally block bold science from becoming life‑changing medicines, providing biotechs with flexible combinations of capital, physical lab space, R&D capabilities, AI/ML tools, and decades of enterprise learning. Lilly Tune Lab is an artificial intelligence and machine learning (AI/ML) platform that provides biotech companies access to drug discovery models trained on years of Lilly’s research data. Lilly estimates that this first release of AI models includes proprietary data obtained at a cost of over $1 billion, representing one of the industry’s most valuable datasets used to train an AI system available to biotechnology companies.

By integrating advanced in silico modelling and federated learning, we connect pioneering machine learning algorithms, substantial computational power, exclusive datasets, and Lilly’s domain‑specific knowledge to drive innovation in drug discovery and facilitate access to optimal therapies for patients.

Tune Lab has powerful underlying AI models and point solutions. The job now is to turn them into something a biotech startup can actually use: a coherent workflow, a clean product experience, and a SaaS offering that scales. You won’t start from zero. There are working point solutions, trained models, and internal infrastructure to build on. Federated learning is a meaningful part of the work – letting biotech customers use & train Lilly’s models without their data leaving their environment.

Plenty else is yours to create from scratch. We’re looking for a Senior Software Engineer to be one of the early engineers on this team. You’ll own meaningful product surfaces end‑to‑end, ship features that customers depend on, and raise the bar on what we build. You’ll partner closely with a Staff Software Engineer and the Engineering Manager. You’ll have real influence on architecture and the engineering bar.

You’ll work shoulder‑to‑shoulder with product, design, and data science, and report to the Tune Lab Engineering Manager.

• Build the product
• Own product surfaces end‑to‑end–frontend, backend, data, integrations–whatever the problem requires. You don’t hand off; you ship.
• Build the application layer that wraps Lilly’s AI models into reliable, cohesive workflows for biotech customers.
• Drive features end‑to‑end.
• Take a fuzzy requirement, weigh the tradeoffs, and ship something that works.
• Stay deep in the code. This is a build role, not a review role.
• Contribute to the engineering bar–code review, testing, release process, on‑call.
• Hold the standards we set.
• Lift the team
• Mentor the engineers around you. Make them better at the job, not just better at this codebase.
• Partner with PM and design on features.
• Speak up early when something feels off in the spec or the scope.
• Help interview engineers as the team grows.
• Hold the bar.
• Spot the things nobody owns and either pick them up or flag them clearly.
• Operate effectively inside a large company
• Navigate enterprise infrastructure, security, and compliance requirements without disrupting development progress.
• Work with Lilly IT and internal platform teams to leverage existing capabilities rather than rebuild them.
• Join customer conversations…