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Remote Ruby Rails Developer Contract Jobs in California

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 engineer the agent loop itself - skills, prompts, review pipelines. We invest in the dev ...

EyeUniversal LLC

Lead Developer

San Diego, CA · Remote

$62.75 - $82/hr

This is a remote position. Lead Developer responsibilities include leading a team of junior ... Javascript, Ruby or PHP. Ultimately, you will ensure our websites, web applications, and software ...

Primary.Health

QA Engineer (Remote)

San Francisco, CA · Remote

Remote JOB SCOPE: As a Quality Engineer at Primary you will be responsible for quality assurance ... In our stack, we mainly use Ruby on Rails and React. ● You have strong SQL query knowledge ● ...

Platphorm, LLC

Engineering Manager

San Francisco, CA · On-site +1

$185K - $235K/yr

Strong hands-on background with Ruby on Rails and modern JavaScript frameworks (React preferred) * Experience managing teams of 5-15 engineers, including fully remote and distributed teams * Track ...

Arka Infotech Inc

Sr. DevOps Engineer

San Francisco, CA · Remote

$153K - $196K/yr

Proficient in at least one scripting language (Shell, Python, Perl, Ruby) Strong knowledge of ruby ... remote teams Excellent problem solving and troubleshooting skills Passion for development ...

Tilda Research

Fluency with Python, Ruby or Javascript * Excellent written English communication skills * Vocal ... We are a remote-first company and are looking for team members who are comfortable with remote work.

Spokeo

Senior Software Developer, API

Pasadena, CA · On-site +1

$143K - $199K/yr

Preferred - 2+ years of development experience with Ruby on Rails, JavaScript, or Node.js ... As a remote-first company, we are able to hire team members residing in the following US states: AZ ...

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Remote Ruby Rails Developer Contract information

What are the key skills and qualifications needed to thrive as a Remote Ruby on Rails Developer (Contract), and why are they important?

To thrive as a Remote Ruby on Rails Developer (Contract), you need strong proficiency in Ruby, Rails framework, RESTful APIs, and a proven track record in software development, typically evidenced by a degree in computer science or equivalent experience. Familiarity with tools such as Git, PostgreSQL, Docker, and cloud platforms like AWS or Heroku is commonly required, along with knowledge of automated testing frameworks. Excellent communication, self-motivation, and time management skills are vital for collaborating and delivering results in a remote setting. These skills ensure the developer can independently produce high-quality, maintainable code while efficiently collaborating with distributed teams.

What is a Remote Ruby Rails Developer Contract?

A Remote Ruby Rails Developer Contract is a temporary or project-based job where a software developer works remotely to build or maintain web applications using the Ruby on Rails framework. These developers are typically responsible for writing clean, maintainable code, collaborating with remote teams, and implementing features based on client requirements. The contract nature means the position is not permanent and usually lasts for a set duration or until specific project milestones are completed. Working remotely allows developers to perform their tasks from any location, often with flexible hours. This setup is popular for tech companies seeking specialized talent without committing to long-term employment.

What are some common challenges faced by remote Ruby on Rails developers working on contract, and how can they be addressed?

Remote Ruby on Rails developers working on contract often face challenges such as managing communication across different time zones, staying aligned with project goals, and ensuring code consistency with distributed teams. To overcome these, it's important to establish clear communication channels, participate actively in daily standups or sprint meetings, and adhere to shared coding standards and documentation practices. Utilizing collaboration tools like Slack, GitHub, and project management platforms helps maintain transparency and streamline workflows, making it easier to deliver high-quality code on time.
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Staff Backend Engineer (Rails)

Staff Backend Engineer (Rails)

Tread

San Francisco, CA • On-site, Remote

$180K - $220K/yr

Full-time

Re-posted 4 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