Senior Software Engineer - Apps Team

About the role

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Today, healthcare organizations rely on fragmented and outdated provider data.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

- 8+ years building and maintaining production-grade systems

- Strong problem-solving skills and comfort with ambiguity

- Experience with AI tools such as Cursor, Claude Code and MCP servers.

- 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)

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