Software Engineer

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.  About Lilly   At Lilly, everything we do starts with patients. We unite caring with discovery to make life better for people around the world. Headquartered in Indianapolis, Indiana, our global team of over 50,000 employees work with urgency and purpose to discover and deliver life-changing medicines, strengthen how health is understood and managed, and support the communities we serve. We bring our best to this work because people depend on it. If you’re driven by purpose and determined to make a meaningful difference for patients, we invite you to bring your skill and your commitment to Lilly.  About Technology@Lilly At Lilly, technology is not a support function. It is how a global medicine company operates, innovates, and delivers. Lilly in Hyderabad builds the capabilities that make this possible, cloud platforms, AI systems, and automation at enterprise scale, all in service of a purpose that makes this technology work genuinely distinctive, from advancing drug discovery to enabling connected clinical trials to keeping a global medicine company running at the standard patients deserve. About the Business Function   The Software Product Engineering (SPE) team is a specialized engineering group that delivers strategic solutions and differentiated capabilities. We take a forward-thinking approach, focusing on an enterprise platform and product mindset, ensuring that the solutions we build can be leveraged across Technology teams for broader impact and efficiency.  Job Title: Software Engineer Role Summary As an Software Engineer, you will design, build, and maintain AI-powered application features and agentic workflows using large language models (LLMs) and orchestration frameworks primarily building backend services and agent logic in Go or Python. You will collaborate with cross-functional teams to deliver high-quality solutions that put AI capabilities into the hands of users and support business objectives.

Build and maintain AI-powered features and agentic workflows using LLMs, tool/function calling, and orchestration frameworks (e.g., LangChain, LangGraph). Build backend services, APIs, and agent orchestration logic primarily in Go or Python. Integrate LLM APIs and AI services into products, handling prompting, context management, evaluation, and guardrails. Where needed, build lightweight React interfaces to surface AI features and agent interactions to users. Collaborate with backend engineers to integrate APIs and deliver seamless features. Use AI-assisted development tools (GitHub Copilot, Cursor) to accelerate delivery and improve code quality. Participate in code reviews and contribute ideas to improve our engineering practices. Analyse and debug software and AI/agent behaviour to enhance performance, reliability, and maintainability. Work closely with product, design, and engineering teams to deliver high-quality solutions. Embrace opportunities to learn new AI techniques, technologies, and tools as part of your growth. How You Will Succeed Apply modern AI engineering workflows prompt design, evaluation, and iteration to ship reliable AI features. Write clean, maintainable, well-tested backend code in Go or Python. Integrate LLMs via APIs and implement tool-calling and multi-step agent orchestration. Build and measure RAG pipelines, using