Senior Full-Stack Software Engineer (Ruby on Rails) #1148

Decisiv powers the largest asset service management ecosystem in the commercial vehicle and equipment world. Our Service Relationship Management (SRM) platform connects more than 5,000 service locations and millions of assets, managing over 14,000 service and repair events per day across North America.

We use data, connectivity, and intelligent software to transform how service, repair, and maintenance happen, reducing downtime, improving asset utilization, and giving our users clarity and control in a complex system. Our leadership team has driven innovation across multiple ventures and industries, and we work at the intersection of scale, domain complexity, and real-world impact.

When you join Decisiv, you help shape an ecosystem that fleets, service networks, and manufacturers depend on every day.

BS/BA or equivalent experience; 6+ years building production web applications, including 3+ years with Ruby on Rails in production.

Deep, current experience with Ruby on Rails in production environments.

Strong proficiency with relational databases, PostgreSQL preferred, including schema design, indexing, and query performance.

Experience integrating modern front-end frameworks (React, Vue, Angular, or similar) with Rails back ends.

Strong API design and implementation skills (REST, JSON:API, OpenAPI; GraphQL a plus).

Working knowledge of AWS, Docker, GitHub, and CI/CD pipelines.

Practical experience with testing (RSpec, Capybara), performance tooling, observability, and production debugging.

Modern tooling fluency. You have already evolved your workflow to take advantage of the latest generation of developer tooling, and you have well-formed opinions about where it earns its keep and where it does not.

Systems thinking. You instinctively reason about end-to-end behavior, integration points, failure modes, and the second-order effects of design choices.

High agency and ownership. You take loosely-defined problems and drive them to shipped, operating outcomes, and you stay accountable when things break.

Quality judgment under leverage. You can move quickly without lowering the bar. You review your own work and the work of your tools with the same rigor.

Clear written communication. You can explain technical decisions and tradeoffs in writing, precisely enough that teammates, stakeholders, and your toolchain can act on them.

Hands-on experience building on top of large language models: evaluations, agent orchestration, or retrieval systems in production.

Experience with Python and Java.

Knowledge of data engineering, ELT pipelines, or analytics platforms.

Background in API analytics, anomaly detection, or trend-based error analysis.

Open-source contributions or a strong public engineering portfolio.

Domain experience in commercial vehicle, fleet, logistics, or industrial software.

Required

Travel – 5%

Due to travel requirements, you must reside in the United States

Send us your GitHub, code samples, or any artifact that shows how you think and ship, including the workflow you have built around your own work to operate at higher leverage. We are equally interested in what you have shipped and how you got there.

We are interested in every qualified candidate who is eligible to work in the United States. However, we are not able to sponsor work visas .