Full Stack Engineering Summer Intern

Based in San Francisco, Cobalt Streamworks is a rapidly growing healthcare technology and clinical services company with a mission to ensure individuals receive the safest and most effective treatments for their unique and evolving healthcare needs. Frequently, medications cause more harm than good. Incorrect drugs and doses costs the US healthcare system over $528 billion in waste, avoidable harm, and hospitalizations each year. Cobalt Streamworks is redefining what excellent healthcare looks like by solving these issues through our software platform (SaaS). We combine cutting edge data science, machine learning, AI, and deep clinical expertise to introduce a patient-centric view to medication management, and develop and deliver personalized care plans on a massive scale for patients and their care teams. Cobalt Streamworks is committed to improving the lives and health of complex patients that have an outsized impact on healthcare costs and have traditionally been difficult to identify and address. These patients face numerous challenges including complicated prescribing issues across multiple medications and providers, medication challenges with many chronic diseases, and patient issues with access to care. Backed by leading healthcare investors and collaborating with top healthcare organizations and providers, we deliver recommendations and facilitate clinical interventions that lead to significant, measurable health improvements for patients and cost savings for customers. Why is Cobalt Streamworks a Great Place to Work?: Outstanding Team and Culture - Our shared mission unites and motivates us to do our best work. We have a relentless passion and commitment to the innovation required to be the market leader in medication intelligence. Making a Proven Difference in Healthcare - We are saving patient lives, and enabling individuals to experience improved health outcomes, including significant reductions in hospitalizations and cost of care. Market Opportunity - Cobalt Streamworks is backed by leading healthcare investors and was founded to tackle one of the largest healthcare problems today. Non-optimized medications therapies which cost the US 275,000 lives and $528 billion annually. Dramatic Growth - Cobalt Streamworks is managing more than 18 million lives across prominent health plans after only 4 years in the market, and was ranked 236 on the 2024 Inc. 5000 list and was named the 5th fastest-growing company in the AI category. The Role: At Cobalt Streamworks , we are transforming healthcare through AI-driven medication intelligence. Our platform helps health plans and care teams improve patient outcomes, reduce costs, and optimize medication therapies at scale. Our engineering organization is evolving toward an AI-native development model where engineers leverage AI agents, automation, and modern cloud-native architectures to accelerate delivery, improve quality, and scale engineering operations. We are seeking a highly motivated Full-Stack Software Engineering Intern with hands-on experience using AI-assisted and agentic development tools in real-world projects. What You’ll Do: Build and enhance modern web applications and APIs Develop frontend experiences using React and TypeScript Implement backend services and integrations using Python Work with PostgreSQL, DynamoDB, and distributed systems Contribute to scalable, event-driven architectures Use AI coding assistants and agentic development workflows as part of daily engineering work Help prototype and improve AI-driven engineering workflows Work with AWS cloud-native infrastructure Participate in CI/CD and automated testing workflows Required Qualifications : Currently pursuing a BS or MS in Computer Science, Software Engineering, or related field Experience building full-stack applications or meaningful technical side projects Experience with React or modern frontend frameworks Experience with backend development using Python, Node.js, or similar languages Familiarity with APIs, databases, and Git workflows Hands-on experience using AI-assisted development tools such as GitHub Copilot, Cursor, Claude Code, ChatGPT, or Windsurf Understanding of prompt engineering fundamentals Ability to validate, debug, and improve AI-generated outputs Strong communication and collaboration skills Preferred Qualifications: Experience experimenting with agentic development workflows Familiarity with LLM APIs, AI agents, MCP servers, or orchestration frameworks Experience with AWS or cloud-native systems Exposure to CI/CD pipelines and automated testing Interest in healthcare technology and AI platforms Technologies You May Work With: React TypeScript Python AWS Lambda API Gateway S3 DynamoDB PostgreSQL Event-driven architectures GitHub Actions and CI/CD What You’ll Gain: Real-world experience building production healthcare software Exposure to AI-native software engineering practices Mentorship from experienced engineering leaders and architects Opportunity to contribute meaningful production code Hands-on exposure to scalable distributed systems Compe