Senior Full-Stack Software Engineer (Ruby on Rails) #1148
Company: Decisiv Inc
Location: United States (Remote)
Type: Full-time
Remote: Yes
Posted: 2026-05-12
About this role
REMOTE POSITION
# About the Role
Decisiv is hiring a Senior Full-Stack Software Engineer to help us build the next generation of our Service Relationship Management platform. The way great software gets built has changed, and we are hiring engineers who have changed with it, engineers who pair strong fundamentals with modern leverage to ship more, reason about whole systems, and operate at a level that simply was not possible a few years ago.
Strong Ruby on Rails fundamentals are the floor, not the ceiling. We are looking for senior engineers who think in systems, who hold a high bar for quality and reliability at scale, and who treat their toolchain as a competitive advantage. You will own complex problems end-to-end, modernize legacy systems, and ship features that touch real fleets, service providers, and manufacturers across North America.
If you are excited by an entirely new way of building software, where senior engineers operate more like systems designers and orchestrators than line-by-line authors, we want to talk to you.
# How We Work
- **Modern leverage is the baseline.** Engineers here are expected to be fluent with the latest generation of developer tooling and to use it every day to compound their output. We do not treat this as a side experiment. It is how we work.
- **Systems thinking over syntax.** When code is cheap to produce, the differentiator is judgment: knowing what to build, where complexity lives, what will fail in production, and how parts of the system fit together. We optimize for engineers who reason about whole systems and second-order effects.
- **Engineers as systems orchestrators.** Senior engineers here spend more time framing problems, designing systems, reviewing work, and steering outcomes than typing implementations. The job is shifting from author to architect, and we want people who are already operating that way.
- **High agency, high velocity.** We expect senior engineers to take problems from ambiguous t...