Senior Software Engineer - Full Stack

At Bristol Myers Squibb, our employees often ask, “Who are you working for?”—a question that fuels collaboration, accountability, and urgency in our work. Our purpose-driven culture inspires us to discover, develop, and deliver innovative medicines to prevail over serious diseases. We offer uniquely interesting and meaningful work, opportunities for growth, and a supportive environment that values inclusion, wellbeing, flexibility, and comprehensive benefits. This is work that transforms the lives of patients, and the careers of those who do it. Role Overview We are seeking a Senior Software Engineer (Full Stack Developer) to design, build, and maintain scalable web applications across the front end, back end, and cloud infrastructure. This role requires a strong foundation in modern JavaScript/TypeScript frameworks, Python and Node.js backend development, containerized microservices, and hands-on experience deploying and operating applications on AWS. The ideal candidate is comfortable owning features end-to-end — from UI implementation to API design to cloud deployment — and collaborates effectively within an Agile team. Key Responsibilities Design, build, and maintain full stack web applications spanning front-end, back-end, and cloud environments Develop and integrate REST/SOAP APIs and microservices to support business applications and AI-driven workflows Enhance, troubleshoot, and support existing production applications, ensuring reliability, performance, and scalability Deploy and manage applications on AWS using containerized (Docker/ECS Fargate) and serverless (Lambda/API Gateway) architectures Collaborate with product managers, designers, and fellow engineers within an Agile development process Participate in code reviews and apply static code analysis and security scanning tools to maintain code quality Collaborate with IT partners, business teams, and the broader IT matrix organization to understand requirements and use cases, support solution design and delivery of new digital capabilities, and contribute to the enablement and simplification of existing ones — translating requirements into user stories, epics, and sprint-ready tasks using Agile/Scrum methodologies Gather requirements, propose solution options, and communicate technical concepts clearly to non-technical stakeholders Desired Experience Front End Strong hands-on experience building production applications with ReactJS (with TypeScript); working knowledge of Next.js Experience with React Native for mobile development Exposure to an additional front-end framework such as Vue.js is a plus Strong proficiency in JavaScript (ES6+), HTML, and CSS Experience with modern CSS frameworks/libraries such as Tailwind CSS, Bootstrap, and component libraries like shadcn/ui Back End Solid experience with Python and Node.js for building server-side applications and services Experience designing and building REST APIs; familiarity with SOAP APIs