Software Engineer (Back End)

Aboon

42d • $210,000 - $225,000 • Remote

About The Position

Aboon is seeking an experienced, senior back-end engineer to help develop the core platform surrounding its Workplace and TPA products. The engineer will work across the Rails system of record, data connectivity layer, and major feature development. The platform is unique as it is operated by both people and AI agents, requiring clean contracts, permissions, staging-before-commit patterns, and audit trails. The role involves building surfaces agents act through, with guardrails for a complex fiduciary business. The engineer will join a small, tight-knit team using the Shape Up framework, participate in all stages from shaping to shipping, and report to the Director of Engineering.

Requirements

• 6+ years of professional software development experience.
• Deep expertise in Ruby/Rails: domain modeling, background jobs, API design, performance.
• Proven track record designing scalable APIs and data models — and strong instincts for permissions, idempotency, and auditability in systems that move real money.
• Proficient working with coding agents; we're not hand-rolling boilerplate.
• Familiarity with AWS and infrastructure-as-code.
• Experience integrating third-party systems (payments, identity, CRM, payroll) and designing for their failure.
• Excellent communication skills and a collaborative mindset.
• Work authorization required; no visa sponsorship.

Nice To Haves

• Experience exposing systems to LLM agents (MCP, tool APIs)
• Fintech or retirement domain experience
• React/TypeScript for occasional full-stack work

Responsibilities

• Own major feature development end-to-end across our products, from design doc through deployment and monitoring.
• Build the tool surfaces our agents act through: typed, permissioned, logged actions against our system of record, with staging-and-promote patterns so nothing writes to a plan without a gate.
• Design and run our data connectivity layer: recordkeeper feeds, payroll providers, payments, and identity.
• Make auditability a priority so that every action, human or agent, is traceable, explainable, and regulator-ready.
• Lead architectural discussions, write design docs, and mentor through code review.

Benefits

• Comprehensive health, dental, and vision insurance, with additional optional coverage
• 401(k) with company match
• Flexible paid time off and holidays
• 10 weeks paid parental leave
• A fully remote work environment, with all the technology and equipment you need
• Support for professional development and career growth
• Annual bonus
• Equity

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed