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. WHY JOIN US If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you! ABOUT THE ROLE 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. WHAT YOU WILL DO - 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. MUST HAVES - 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. PERKS AND BENEFITS - Professional growth: Mentorship, TechTalks, and personalized growth roadmaps. - Competitive compensation: USD-based pay with education, fitness, and team activity budgets. - Exciting projects: Modern solutions with Fortune 500 and top product companies. - Flextime: Flexible schedule with remote and office options.