Senior Software Engineer, Partner Onboarding

Human Interest is a high-growth fintech company focused on providing retirement benefits to small and medium-sized businesses. The Senior Software Engineer will build innovative products for 401(k) onboarding, collaborating with experts to create reliable systems that enhance customer satisfaction.

Responsibilities:

• 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 — operating as the architect and decision-maker while AI handles the building
• Expand what's possible with AI tooling — identify opportunities to automate repetitive engineering work, improve code quality through AI-driven review, and share effective patterns with your team

Requirements:

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