About CertifyOS CertifyOS is building the data infrastructure that powers modern healthcare. Today, healthcare organizations rely on fragmented and outdated provider data. This creates unnecessary administrative work, regulatory risk, and higher costs across the system. We’re solving that problem. Our API-first platform automates provider licensing, enrollment, credentialing, and network monitoring by connecting directly to hundreds of primary data sources. We help healthcare organizations maintain accurate, compliant, and reliable provider networks at scale. Our vision is simple: One API. One provider ID. Frictionless provider data. We’re backed by leading investors and built by a team with deep experience in provider data systems. At CertifyOS, we value authenticity, accountability, collaboration, results, and openness to feedback. We’re building a high-ownership team focused on solving real infrastructure problems that impact millions of patients. About the Role We are seeking a Senior Software Engineer to help scale our core platform and accelerate product delivery. You will build high-quality systems, influence architecture, and improve reliability and performance across our applications. What You’ll Do Own end-to-end delivery of features (design → deployment → support) Build scalable, maintainable systems for evolving product needs Partner with product to clarify requirements and deliver practical solutions Improve reliability and code quality through strong engineering practices Participate in on-call rotation and contribute to operational excellence What We’re Looking For 5+ years building and maintaining production-grade systems Strong problem-solving skills and comfort with ambiguity Ability to independently define solutions and contribute to architecture Track record of shipping high-quality software in fast-paced environments Strong engineering fundamentals (testing, clean code, maintainability) Experience improving system performance and reliability Strong written/verbal communication and cross-functional collaboration Strong code review skills and a mindset of raising engineering standards Willingness to participate in on-call and incident response Experience working with sensitive data and security best practices (PII) Experience with AI tools such as Cursor, Claude Code and MCP servers. Nice to Have Experience with microservices or distributed systems Experience building data-intensive or large-scale platforms Familiarity with healthcare, compliance, or regulated environments Experience with Master Data Management (MDM) or entity resolution systems Experience reducing technical debt through iterative refactoring Experience improving developer productivity through CI/CD and tooling Technologies & Tools Google Cloud Platform (GCP) Java (Java 21 preferred) with Quarkus React / TypeScript REST APIs and distributed systems Docker and Kubernetes CI/CD (GitHub Actions) Monitoring and alerting tools (e.g., Sentry) Data platforms (Spanner, BigQuery) Kafka AI Tools (Cursor, Claude Code, Codex) Benefits of Working at Certify At Certify, we’re building with intention and taking care of the people doing the work. Your well-being matters to us. We provide 100% coverage of health, dental, and vision insurance premiums for employees. Our US-based team benefits from unlimited PTO, with at least two weeks off each year to recharge. In India, employees are supported with health insurance, statutory leave benefits, and additional wellness (menstrual) leave for women. We are an equal opportunity employer committed to building an inclusive environment where everyone feels valued and empowered to do their best work, and we welcome applicants from all backgrounds and experiences. If you require reasonable accommodations during the application process, please contact [email protected]. We are also committed to pay transparency and foster an open culture where compensation conversations are encouraged and respected.