Software Engineer – Back End

Aboon

. Develop the core platform supporting Workplace and TPA retirement products .

Posted 11/11/2026full-timeRemote • United StatesMid-LevelSenior💰 $210,000 - $225,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Ruby/Rails for developing scalable APIs and data models, with a strong focus on permissions and auditability in financial systems. Proven ability to lead architectural discussions and mentor team members while ensuring compliance and traceability in product development.

Highest-signal resume keywords

Ruby/Rails ExpertiseAPI DesignAWS FamiliarityFintech ExperienceMentorship Through Code Review

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software DevelopmentDomain ModelingBackground JobsPerformance OptimizationData ModelingIdempotencyAuditabilityCoding AgentsIntegrating Third-Party SystemsDesigning for System Failure

Soft Skills

Excellent CommunicationCollaborative Mindset

Tools & Technologies

AWSInfrastructure-as-CodeReactTypeScript

Industry Keywords

FintechRetirement ProductsPaymentsIdentityCRMPayroll

Tech Stack

Tools & technologies

AWSReactRubyRuby on RailsTypeScript

About the role

Key responsibilities & impact

Develop the core platform supporting Workplace and TPA retirement products
Own major feature development end-to-end from design document through deployment and monitoring
Build typed, permissioned, and logged tool surfaces for AI agents
Implement staging-and-promote patterns to prevent ungated writes to retirement plans
Design and operate the data connectivity layer for recordkeeper feeds, payroll providers, payments, and identity
Ensure every human and agent action is traceable, explainable, and regulator-ready
Lead architectural discussions and write design documents
Mentor through code review
Participate fully in product shaping through shipping
Report to the Director of Engineering

Requirements

What you’ll need

6+ years of professional software development experience
Deep expertise in Ruby/Rails, including domain modeling, background jobs, API design, and performance
Proven track record designing scalable APIs and data models
Strong instincts for permissions, idempotency, and auditability in systems that move real money
Proficient working with coding agents
Familiarity with AWS and infrastructure-as-code
Experience integrating third-party systems including payments, identity, CRM, and payroll
Experience designing for third-party system failure
Excellent communication skills and collaborative mindset
Work authorization in the United States required
No visa sponsorship
Experience exposing systems to LLM agents, MCP, or tool APIs preferred
Fintech or retirement-domain experience preferred
React/TypeScript experience for occasional full-stack work preferred

Benefits

Comp & perks

Annual bonus
Equity
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
Fully remote work environment
Technology and equipment provided
Support for professional development and career growth
In-person company retreats 1–2 times per year