Senior Ruby on Rails Engineer ID66906

AgileEngine•Downey, CA

2d•Hybrid

About The Position

AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. We are looking for a Senior Full Stack Engineer with a strong backend focus to build and scale customer-facing platform capabilities using Ruby on Rails and React/TypeScript. You will design and maintain distributed full stack applications, contribute to architecture and modernization initiatives, and collaborate closely with Product, UX, QA, and Data teams across the full SDLC. The role requires at least 4–5 hours of daily overlap with U.S. East Coast hours in a globally distributed Agile environment.

Requirements

5+ years building customer-facing applications professionally in collaboration with Product Management, UX, and Data teams
5+ years of Ruby on Rails / Ruby experience
4+ years working with React, JavaScript/TypeScript, Next.js, CSS, and modern frontend frameworks
3+ years architecting full stack applications
2+ years of AWS and/or Kubernetes experience, preferably with Istio exposure
Strong backend engineering mindset with the ability to operate autonomously in fast-paced product environments
Experience working within distributed Agile engineering teams
Ability to work with at least 4–5 hours overlap with U.S. East Coast working hours
Comfortable collaborating within globally distributed engineering teams
Upper-intermediate English level

Nice To Haves

Experience working in fast-moving environments with on-call rotations and documented SLAs, SLOs, RPOs, and RTOs
Familiarity with Google Workspace tools
Experience using Jira, Confluence, Slack, and Fellow
Experience with PagerDuty, DataDog, and SendGrid
Exposure to AI-assisted engineering workflows and modern developer productivity tooling

Responsibilities

Autonomously deliver ongoing business impact across a team, product capability, or technical system
Design, develop, and maintain scalable full stack applications with a strong focus on backend Ruby on Rails development
Collaborate closely with QA engineers to ensure solutions are technically feasible and responsive across devices and browsers
Partner with Product and Engineering teams to ensure quality throughout the SDLC and product release cycles
Work closely with Product Management and technical leads to estimate, plan, and commit to deliverables
Participate in architecture discussions, technical planning, and engineering excellence initiatives
Support modernization efforts, platform scalability, and operational reliability across customer-facing systems
Contribute to code reviews, testing strategies, documentation, and continuous improvement initiatives