Senior Software Engineer

Statsig is revolutionizing how software is built, tested, and scaled. Thousands of companies—including OpenAI, Microsoft, and Notion—rely on Statsig to drive growth through data-driven product development. Backed by Sequoia Capital and Madrona Venture Group, we are rapidly growing and shaping the future of experimentation.

Statsig's engineering team builds scalable infrastructure and products that empower companies to innovate. We value simplicity, efficiency, and high performance while fostering a collaborative culture focused on impactful solutions.

As a Senior Software Engineer, you will drive critical projects, own core components, and enhance system performance. You will play a key role in delivering high-quality solutions with minimal guidance while mentoring others and improving development processes.

• Own & Develop Features: Lead development of core features and systems with a focus on reliability, performance, and scalability.

• Deliver High-Impact Solutions: Ship high-quality projects efficiently and ensure timely completion.

• Solve Complex Problems: Identify and resolve technical challenges proactively.

• Enhance Processes: Improve development workflows and champion best practices.

• Collaborate & Mentor: Lead small teams, foster cross-functional relationships, and mentor junior engineers.

• Contribute to Engineering Culture: Participate in recruiting, onboarding, and diversity initiatives to strengthen the team.

You thrive in fast-paced, high-growth environments and excel at solving technical challenges. You value efficiency, simplicity, and impact-driven development.

• 4+ years of software engineering experience with proven technical leadership.

• You are comfortable picking up new coding languages or have prior experience developing in Node.js, Rust, React, or Python.

• You value code simplicity, efficiency, and performance.

• You have experience mentoring junior engineers and driving team improvements.

• You have a deep understanding of modern development practices, architecture, and technologies.

• You have excellent collaboration and communication skills.

• Ability to work full-time from our Bellevue, WA office.