At Lilly, we unite caring with discovery to make life better for people around the world. We are a global healthcare leader headquartered in Indianapolis, Indiana. Our employees around the world work to discover and bring life-changing medicines to those who need them, improve the understanding and management of disease, and give back to our communities through philanthropy and volunteerism. We give our best effort to our work, and we put people first. We’re looking for people who are determined to make life better for people around the world.

As a Senior Full-Stack Engineer/Tech Lead, you will:

Have solid hands-on expertise in front-end, back-end and cloud development along with technical leadership qualities in driving a team of experienced cloud full stack developers.demonstrate ability to solve a broad set of problems including highly complex ones with at least ReactJS, NodeJS, Python and AWS serverless technologies.perform activities such as refactoring and re-platforming and is able effectively apply DevSecOps principles best practice software architecture and development practicespossess ability to break down moderately complex problems to implement for increased business impactsupport other team members and helps them to be successful. Actively shares learnings with team membersdrive and enforce the team process improvements, ensuring others are brought along in understanding the benefits and tradeoffsactively promote new and innovative ideas across multiple teams and capabilities

Key Responsibilities

           

Technical Leadership (25%)

Define and drive technical vision, architecture, and engineering standards across full-stack applicationsLead architectural design reviews and make critical technology decisionsEstablish best practices for code quality, testing, deployment, and operationsEvaluate and select technologies, frameworks, and tools that align with business objectivesChampion engineering excellence through code reviews, pair programming, and technical mentorshipCollaborate with Product and Business teams to translate requirements into scalable technical solutionsDrive technical roadmap and balance technical debt with feature delivery

Hands-On Development (75%)

Write high-quality, maintainable, and well-tested code across the full stack (React, Node.js, Python, AWS)Build responsive, performant front-end applications using React.js and modern JavaScript/TypeScriptDevelop scalable backend services and APIs using Node.js and PythonDesign and implement serverless architectures using AWS services (Lambda, API Gateway, DynamoDB, S3, etc.)Implement CI/CD pipelines and infrastructure-as-code using AWS CDK/CloudFormation/TerraformOptimize application performance, scalability, and cost-efficiencyDebug complex issues across the entire stack and resolve production incidentsParticipate in on-call rotation and ensure system reliability

Team Development & Collaboration

Mentor and coach engineers at all levels through code reviews, pairing, and technical discussionsFoster a culture of continuous learning, innovation, and engineering excellenceCollaborate with cross-functional teams (Product, Design, QA, DevOps) to deliver end-to-end solutionsConduct technical interviews and contribute to building a world-class engineering teamLead by example with work ethic, technical curiosity, and commitment to qualityFacilitate knowledge sharing through documentation, tech talks, and training sessions

Required Qualifications

Technical Expertise

10+ years of professional software development experience with full-stack development3+ years in technical leadership or senior engineering rolesExpert-level proficiency in:Front-End: React.js, JavaScript/TypeScript, HTML5, CSS3, modern state management (Redux, Context API, Zustand)Back-End: Node.js, Express.js/Fastify, RESTful APIs, GraphQLPython: Flask/FastAPI/Django, data processing, scriptingAWS Serverless: Lambda, API Gateway, DynamoDB, S3, EventBridge, Step Functions, SQS/SNSStrong understanding of serverless architecture patterns, microservices, and event-driven designExperience with AWS services: CloudFormation/CDK, IAM, CloudWatch, RDS/Aurora, ElastiCacheProficiency with SQL and NoSQL databases (PostgreSQL, MySQL, DynamoDB, MongoDB)Hands-on experience with CI/CD tools (GitHub Actions, GitLab CI, Jenkins, AWS CodePipeline)Strong knowledge of containerization (Docker) and orchestration (ECS, Fargate, Kubernetes is a plus)

Architecture & Design

Proven ability to design and deliver scalable, secure, and maintainable systemsDeep understanding of software design patterns, clean code principles, and SOLID principlesExperience with distributed systems, caching strategies, and performance optimizationKnowledge of security best practices (OAuth2, JWT, encryption, AWS security services)Expertise in API design (REST, GraphQL) and integration patterns

Leadership & Communication

Demonstrated experience leading technical teams and driving complex projects to completionStrong mentorship skills with a track record of developing junior and mid-level engineersExcellent communication skills—ability to explain complex technical concepts to non-technical stakeholdersExperience working in Agile/Scrum environments with cross-functional teamsProven ability to balance technical excellence with business priorities and timelines

Problem-Solving & Execution

Strong analytical and problem-solving skills with attention to detailAbility to break down complex problems into manageable, iterative solutionsTrack record of delivering high-quality software on time and within budgetExperience with production support, debugging, and incident managementComfort with ambiguity and rapidly changing priorities

Preferred Qualifications

Bachelor's or Master's degree in Computer Science, Engineering, or related field (or equivalent experience)Experience in highly regulated industries (healthcare, pharma, finance)Hands-on experience with:Additional AWS services: AppSync, Cognito, Amplify, Athena, Glue, KinesisInfrastructure as Code: Terraform, AWS CDK, CloudFormationTesting frameworks: Jest, React Testing Library, Pytest, Cypress, PlaywrightMonitoring & Observability: CloudWatch, DataDog, New Relic, SentryMessage queues: SQS, SNS, Kafka, RabbitMQExperience with data engineering or ML/AI integration in production systemsFamiliarity with micro-frontends, microservices or design systemsPreferred Experience with statistical computing, clinical data, or life sciences domains 

Lilly is dedicated to helping individuals with disabilities to actively engage in the workforce, ensuring equal opportunities when vying for positions. If you require accommodation to submit a resume for a position at Lilly, please complete the accommodation request form (https://careers.lilly.com/us/en/workplace-accommodation) for further assistance. Please note this is for individuals to request an accommodation as part of the application process and any other correspondence will not receive a response.

Lilly does not discriminate on the basis of age, race, color, religion, gender, sexual orientation, gender identity, gender expression, national origin, protected veteran status, disability or any other legally protected status.

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