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Rails Library Jobs (NOW HIRING)

Tread

Staff Backend Engineer (Rails)

San Francisco, CA · On-site +1

$180K - $220K/yr

Stack Rails API (Ruby), Postgres, REST. React on the web, Flutter on mobile. AWS. What You'll Do ... We maintain a shared internal skills library across Claude Code and Cursor, with namespaced agent ...

Hitachi, Ltd.

Document Controller

Honolulu, HI · On-site

Hitachi Rail Honolulu JV Profession (Job Category): Other Job Schedule: Full time Remote: No ... Maintaining the Project SharePoint Libraries up-to-date * Managing transfer of documents among the ...

Blue Origin

PCB Design Librarian III

Seattle, WA · On-site

$104K - $145K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Experience routing multi-rail power delivery solutions, and high-power thermal management and other ... PCB library and design automation (Quilter, Darcy, or similar tools) Base Pay Range for: CA ...

Blue Origin, LLC

PCB Design Librarian III

Seattle, WA · On-site

$104K - $145K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Experience routing multi-rail power delivery solutions, and high-power thermal management and other ... PCB library and design automation (Quilter, Darcy, or similar tools) Base Pay Range for: CA ...

Blue Origin

PCB Design Librarian III

Los Angeles, CA · On-site

$104K - $145K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Experience routing multi-rail power delivery solutions, and high-power thermal management and other ... PCB library and design automation (Quilter, Darcy, or similar tools) Base Pay Range for: CA ...

Hitachi

Document Controller

Honolulu, HI

Hitachi Rail Honolulu JV Profession (Job Category): Other Job Schedule: Full time Remote: No ... Maintaining the Project SharePoint Libraries up-to-date * Managing transfer of documents among the ...

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How much do rails library jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for rails library in the United States is $15.74, according to ZipRecruiter salary data. Most workers in this role earn between $11.78 and $17.55 per hour, depending on experience, location, and employer.

What is a Rails library?

A Rails Library is a collection of reusable code, modules, or components designed to extend or enhance the functionality of Ruby on Rails applications. These libraries, often called 'gems,' help developers add features such as authentication, file uploads, or API integrations without writing everything from scratch. By using Rails Libraries, developers can save time, maintain cleaner code, and leverage best practices established by the community.

What are some common challenges faced by developers working on a Rails library, and how can they be addressed?

Developers working on a Rails library often encounter challenges such as maintaining compatibility with multiple Rails versions, ensuring robust test coverage, and managing open-source contributions. Staying up-to-date with the Rails framework's updates is crucial to prevent deprecation issues. Collaborating effectively with other contributors, documenting code thoroughly, and setting up automated testing workflows can significantly help overcome these challenges and ensure the library remains reliable and widely usable.

What are the key skills and qualifications needed to thrive as a Ruby on Rails developer, and why are they important?

To thrive as a Ruby on Rails Developer, you need strong skills in Ruby programming, web application development, and a solid understanding of MVC architecture, typically supported by a degree in computer science or related experience. Proficiency with tools like Git, databases (such as PostgreSQL or MySQL), and deployment platforms, along with familiarity with testing frameworks, is essential. Excellent problem-solving abilities, collaboration, and effective communication skills help developers work efficiently within teams and adapt to evolving project requirements. These skills are critical to delivering robust, scalable applications and ensuring smooth project execution in dynamic software environments.

What is the difference between Rails Library vs Rails Developer?

AspectRails LibraryRails Developer
Required CredentialsNone specific; knowledge of Ruby and Rails neededBachelor's in Computer Science or related field; proficiency in Ruby on Rails
Work EnvironmentUsed within Rails applications; library code is integrated into projectsDevelops and maintains Rails applications; full project lifecycle
Employer & Industry UsageOpen-source projects, software companies, web development teamsWeb development agencies, startups, tech companies
Search & Comparison IntentUnderstanding libraries that extend Rails functionalityHiring or hiring for Rails development roles

In summary, a Rails Library is a collection of code that adds specific features to Rails applications, often used by developers. A Rails Developer, however, is a professional who builds, maintains, and enhances entire Rails applications. While libraries are tools used by developers, the developer role encompasses the full development process.

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Rails Library jobs near you
Infographic showing various Rails Library job openings in the United States as of August 2026, with employment types broken down into 1% Internship, 83% Full Time, 12% Part Time, 1% Temporary, and 3% Contract. Highlights an 90% Physical, 3% Hybrid, and 7% Remote job distribution, with an average salary of $32,732 per year, or $15.7 per hour.

Staff Backend Engineer (Rails)

Tread

San Francisco, CA • On-site, Remote

$180K - $220K/yr

Full-time

Re-posted 15 days ago

Job description

About Tread
Tread is an AI-native vertical SaaS platform transforming construction materials logistics-a massive, essential industry that moves the aggregate, asphalt, and concrete behind every road, bridge, and building. In March 2026, we crossed $1Bn in monthly delivered load value on the platform, and we're at ~$XM ARR and growing fast. We are a lean Engineering organization with BE, FE, and Mobile all <10 people total. Every individual has a meaningful impact on the code base and the product we deliver to customers.
Our AI-powered platform serves Haulers, Producers, and Contractors-optimizing truck routing, loaded-mile delivery, and project planning while delivering exceptional customer service through personalized AI agents.
We're a Series A company backed by Mucker Capital, and we're building the team that will take us from $XM to $XXM+ ARR.
The Role
We're hiring backend engineers to own our systems end-to-end - the data models, workflows, and APIs behind dispatch, ticketing, settlements, and integrations. You'll work with frontend, mobile, product, and our Forward Deployed Engineers, and you'll have meaningful input on how the system should behave for scalability and performance.
Our code has been ~100% AI-generated since March 2026. It's changed how the team works. We're building the software factory that turns customer, PM, and engineering input into safe deployable code. We expect the engineering team to be spinning up agents and managing the output rather than writing code by hand. While AI generates code here, engineers own the architecture, invariants, tests, review, security, and production behavior of everything we ship.
Stack
Rails API (Ruby), Postgres, REST. React on the web, Flutter on mobile. AWS.
What You'll Do
  • Manage state machines across projects, orders, jobs, and loads.
  • Operate a telematics layer with billions of rows tracking thousands of trucks across North America - live position, route history, mileage attribution.
  • Design geofencing and geo-driven event processing that turns raw GPS into structured dispatch events.
  • Build algorithmic dispatch and optimization, including automated load assignment.
  • Run the payments stack that settles ~$1B/month in hauler payouts.
  • Ship customer-facing agentic workflows on our MCP and LLM features.
  • Build integrations with telematics providers, scale houses, ERPs, and other external systems.
  • Shape our internal AI tooling - shared agent skills, automated review, prompt and skill infrastructure.

Requirements
  • Strong Rails experience, or strong experience in a comparable backend framework and willingness to ramp fast.
  • You think in systems - interfaces, schemas, invariants, failure modes - and you've shipped designs that held up as the product scaled past their original assumptions.
  • You can model workflows where the source of truth is unreliable and the system still has to settle correctly.
  • High ownership.
  • Daily, opinionated use of AI coding tools.

Preferred
  • You can debug production issues and explain root causes.
  • Background in logistics, ops, payments, or fintech.

How We Work
We deploy continuously, review PRs the same day, and invest in correctness up front so on-call stays light.
AI tooling is part of the infrastructure. We maintain a shared internal skills library across Claude Code and Cursor, with namespaced agent skills the whole team uses for reviewing diffs and resolving PR feedback. We engineer the agent loop itself - skills, prompts, review pipelines. We invest in the dev environment and CI work that makes coding agents useful: devcontainers, fast feedback, pre-approved permissions, cloud agent support. Improving the SDLC is first-class engineering work.
Before You Apply
This isn't the right role if you want to:
  • Write only CRUD endpoints.
  • Work from fully-specified requirements.
  • Treat AI coding tools as a side experiment.

How to Apply
Send something you've worked on where the backend had real complexity. A repo, a write-up, an architecture doc, a postmortem. One good thing beats a long resume.

Apply