Senior Software Engineer

• As a Senior Software Engineer, you will build industry-first products that make retirement accounts simple and easy for employers to support and participants to use
• You will collaborate with domain experts to design, build and test new features and systems. As reliability and auditability is key to earning our customers’ trust, you will build robust systems that are observable, maintainable, and scalable
• Value continuous improvement - we care about documentation, security, durability, not just throwing features over the wall
• Help each other be better engineers - we leave things better than we found it
• Aspire to collaborate seamlessly - we ensure our software is improving the customer experience
• Design, build, and maintain our user experiences for both external and internal customers
• Work on business-critical, foundational services which serve as the data funnel of our entire platform
• Improve complex processes and systems to make them more robust and require less human intervention
• Collaborate with other engineers and stakeholders to share knowledge and build expertise
• Develop ownership over domains in our system and make informed engineering tradeoffs
• Advocate for and delight internal and external users
• Direct AI agents across the full development lifecycle, from prototyping and implementation to debugging and code review. Operate as the architect and decision-maker while AI handles the building
• Expand what’s possible with AI tooling and identify opportunities to automate repetitive engineering work, improve code quality through AI-driven review, and share effective patterns with your team

Benefits

• Short/Long-term disability and life insurance
• Generous parental leave policy
• Monthly work from home stipend
• Comprehensive training and professional development via Beacon U plus an annual education stipend
• Dollar-for-dollar match of employee donations to nonprofit 501(c)(3) organizations, up to $1,000 per year
• Annual wellness stipend
• An annual membership to One Medical Group, with membership fees paid by Human Interest
• HSA or FSA offering with an annual employer contribution
• Generous FTO (exempt) and PTO (non-exempt) policies
• Stock options for every employee
• Top-of-the-line health, dental, and vision, with employee premiums fully paid and dependent premiums 50% covered by Human Interest
• A great 401(k) plan: our own! Our 401(k) includes a dollar-for-dollar employer match up to 4% of compensation

• Enjoy mentoring other engineers and deeply review their code
• 6+ years of experience building and maintaining software in production
• Desire to work with the following technologies: Node, TypeScript, Kotlin, React, AWS, PostgreSQL, Kafka
• Top notch communication skills. You can communicate well with engineers and non-engineers alike
• Proactive and empathetic mindset - you love to roll up your sleeves to fix problems for our customers
• Strong desire to learn, think creatively, and share knowledge with others
• Past experience working in startups and/or fintech
• Proficiency in leveraging AI coding assistants (e.g., Codex, Claude Code and Cursor) to accelerate development cycles and improve code quality