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Senior Full-Stack Engineer

Job Description

We are seeking an expert developer, technical leader, and core team member who will take end-to-end ownership of whole systems and drive major complex systems initiatives. This role is critical as we actively reshape our Software Development Lifecycle (SDLC) to be AI-driven, utilizing agent-based workflows. The ideal candidate will work closely with other experienced engineers to contribute to and execute the team’s technical strategy, maintain the long-term health of our Ruby on Rails monolith and future systems, and demonstrate the flexibility required to excel in a rapidly evolving, small-team-minded environment. This role must ensure successful delivery against team and organizational goals.

What will you help deliver:

  • Lead the technical execution and successful delivery of large, complex projects, providing architectural guidance and coordinating efforts among team members and relevant stakeholders.

  • Be accountable for the long-term architecture, health, and quality of the team’s codebase and systems.

  • Champion the adoption and execution of an AI-driven SDLC, specifically utilizing agent-based building techniques, and demonstrating a high degree of flexibility and willingness to learn.

  • Lead engineering designs, soliciting feedback and building consensus across the team, while presenting and implementing best practices and patterns.

  • Take full-cycle ownership of projects, including coordination, planning, risk management, security and compliance reviews, design, development, testing, rollout, and maintenance; resulting in an improvement of customer, product, and/or business outcomes.

  • Make high-quality, impactful technical contributions across the full stack, encompassing light infrastructure work and a full-stack Ruby on Rails monolith.

  • Drive collaboration with teammates, partners, and stakeholders to advance team and organizational goals.

  • Mentor L5 engineers, lifting the skills and expertise of those around you, and cultivating learning and growth within the team.

  • A senior full-stack engineer (7+ years) with significant technical leadership experience.

  • Deep expertise in Ruby on Rails (6+ years) and PostgreSQL.

  • Strong front-end experience with JavaScript/TypeScript, ideally including Stimulus JS or React, plus comfort with Tailwind CSS.

  • Experience working on and owning complex systems end to end, including architecture, implementation, and long-term maintenance.

  • Solid exposure to Heroku and/or GCP (or similar cloud environments).

A big differentiator for this search is that we’re actively reshaping our SDLC to be AI-driven, with a strong emphasis on agent-based workflows. We’d love someone who:

  • Has real experience using AI throughout the SDLC and in product development, not just as a side tool.
  • Ideally has hands-on experience building with agents (or is demonstrably eager and able to ramp up quickly here).

Nice-to-haves (not required, but definitely pluses):

  • Background in FinTech or PropTech.

  • Prior startup experience.

  • Experience in SOC2/ISO-compliant environments.

  • Exposure to fraud detection or identity verification work.

  • Work remotely Monday - Friday, 40 hours a week (no weekends)

  • Vacation: 10 business days a year

  • Holidays: 5 National Holidays a year

  • Company Holidays: 5 Company Holidays a year (Christmas Eve, Christmas Day, New Year’s Eve, New Year’s Day, Zipdev Day)

  • Parental Leave

  • Health Care Reimbursement

  • Active Lifestyle Reimbursement

  • Quarterly Home Office Reimbursement

  • Payroll Deduction Purchase Plans

  • Longevity Bonus

  • Continuous Learning Bonus

  • Access to Training and Professional Development Platforms

  • Did we mention it’s REMOTE?!!

One of our core values at Zipdev is “Be authentic.” that’s why we encourage you to answer the application form in your own words; we are interested in getting to know you, not a digital assistant.

Wondering how our remote environment or our payment method work? We’ve put together some helpful answers in our FAQs at the bottom our our career site. Take a look and let us know if you have any other questions!

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