Senior Software Engineer - AI-Driven Fintech Platform

Human Interest; United States; On-site; USD 190,000 - 230,000; Full time

Benefits offered by this job

401(k) match

Health/dental/vision

Parental leave

Remote stipend

Lifestyle stipend

Mental health support

Fertility benefits

Student loan resources

Equity education tools

Job summary

Human Interest is a mission-driven fintech company working to give employers and employees nationwide access to retirement benefits. As a Senior Software Engineer, you will design, build, and maintain user experiences and core services, driving AI-assisted development while ensuring reliability and auditability across the platform.

You will collaborate across teams, mentor engineers, and push for scalable, observable systems that improve our customers’ experience and operational efficiency.

Qualifications

• 6+ years of experience building and maintaining software in production.
• Experience with Node, TypeScript, Kotlin, React, AWS, PostgreSQL, Kafka.
• Proficiency with AI coding assistants to accelerate development cycles and improve code quality.
• Strong communication with engineers and non-engineers alike.

Responsibilities

• Design, build, and maintain our user experiences for external and internal customers.
• Work on foundational services which serve as the data funnel of our platform.
• Improve complex processes to be more robust and require less human intervention.
• Collaborate with engineers and stakeholders to share knowledge and build expertise.
• Develop ownership over domains and make informed engineering tradeoffs.
• Advocate for and delight internal and external users.
• Direct AI agents across the full development lifecycle, as architect and decision-maker.
• Identify opportunities to automate repetitive engineering work and improve code quality with AI.

Skills

Node

TypeScript

Kotlin

React

AWS

PostgreSQL

Kafka

AI coding assistants

Communication

Mentoring

Startup/fintech experience

Tools

Codex

Claude Code

Cursor

Job description

Human Interest is a mission-driven fintech company working to give employers and employees nationwide access to retirement benefits. As a Senior Software Engineer, you will design, build, and maintain user experiences and core services, driving AI-assisted development while ensuring reliability and auditability across the platform.

You will collaborate across teams, mentor engineers, and push for scalable, observable systems that improve our customers’ experience and operational efficiency.