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Rails Jobs in San Francisco, CA

Last updated: 1 day ago
  • Promoted
Software Engineer - Ruby on Rails

Software Engineer - Ruby on Rails

BeaconSan Francisco, CA, United States
$170,000.00–$190,000.00 yearly
Full-time
Ruby on Rails Engineer | Fast-Growing AI Venture-Backed Startup.Ruby on Rails, PostgreSQL, AWS, React (Bonus).Join a trailblazing AI startup shaping the future of Reinforcement Learning from Human ...Show moreLast updated: 1 day ago
Ruby on Rails Developer

Ruby on Rails Developer

LafmatchBerkeley, California, United States
Programming is hard work but we believe it should be fun too.And if the product itself is fun? Even better! Lafmatch is a new entrant in the casual online dating space.We’re currently in the ...Show moreLast updated: 30+ days ago
Software Engineer / Rails Developer

Software Engineer / Rails Developer

ListiaBay Area, CA
Architect, design and implement features directly for our website.You will start from scratch for some features and add on to others that have already been implemented. You will own projects from st...Show moreLast updated: 30+ days ago
  • Promoted
Senior Product & Regulatory Lead (Banking Rails)

Senior Product & Regulatory Lead (Banking Rails)

Tbwa Chiat / Day IncSan Francisco, CA, US
$200,000.00–$260,000.00 yearly
Full-time
Senior Product & Regulatory Lead (Banking Rails).We took an unconventional approach to building a payments company, creating a platform from scratch. Today, we're the payments platform of choice...Show moreLast updated: 6 days ago
Front End / Rails Web Developer

Front End / Rails Web Developer

HerokuSan Francisco, CA, United States
Full-time
The Heroku Web Apps team is dedicated to beautiful, usable, and valuable web apps.We're highly collaborative, make decisions in minutes, and ship features in hours. We believe in getting customer va...Show moreLast updated: 5 days ago
  • Promoted
Keyholder / Sales Associate - San Francisco

Keyholder / Sales Associate - San Francisco

RailsSan Francisco, CA, United States
Full-time
Founded in 2008 by Los Angeles native Jeff Abrams, Rails has grown from a small label - started with just a single hat - into a full collection of women’s and men’s apparel.Sold at top internationa...Show moreLast updated: 20 days ago
  • Promoted
Software Development Engineer II (Ruby on Rails), ART19

Software Development Engineer II (Ruby on Rails), ART19

AmazonSan Francisco, CA, United States
$223,600.00 yearly
Full-time
ART19 is a leading audio platform, providing cutting-edge tools for on-demand hosting, distribution, ad serving, and audience measurement. At the intersection of publishers and advertisers, the comp...Show moreLast updated: 2 days ago
Senior Back-End Engineer - Ruby and Ruby on Rails (RoR)

Senior Back-End Engineer - Ruby and Ruby on Rails (RoR)

MozillaSan Francisco, CA, US
Remote
Senior Back-End Engineer - Ruby and Ruby on Rails (RoR).Mozilla Corporation Team : Fakespot Locations : Remote Canada, Remote US. To learn the Hiring Ranges for this position, please select your locat...Show moreLast updated: 30+ days ago
  • Promoted
Technical Product Manager - Bank Rails

Technical Product Manager - Bank Rails

Cash AppSan Francisco, CA, US
Full-time
It all started with an idea at Block in 2013.Initially built to take the pain out of peer-to-peer payments, Cash App has gone from a simple product with a single purpose to a dynamic ecosystem, dev...Show moreLast updated: 6 days ago
Ruby On Rails Developer

Ruby On Rails Developer

IntelliPro Group Inc.San Francisco, CA, US
$80.00 hourly
Quick Apply
Position - Ruby On rails Developer Contract - 4 - 6 months Pay rate - $80 / hr - 90 / hr Location - Remote Right Candidate Should have strong experience in coding.Prefer Product based...Show moreLast updated: 30+ days ago
  • Promoted
Senior Software Engineer / Ruby on Rails / Back-end (San Francisco)

Senior Software Engineer / Ruby on Rails / Back-end (San Francisco)

LevelpathSan Francisco, CA, United States
You're a passionate backend developer that thrives building high-impact customer applications.Facing big challenges head on inspires you. You love exploring complex problems, driving solutions, and ...Show moreLast updated: 30+ days ago
Senior Software Product Manager, LLM Guard Rails

Senior Software Product Manager, LLM Guard Rails

NVIDIARemote, CA, US
Remote
Full-time
Deep Learning is an exciting new area of machine learning.To bring AI to life, neural networks need to be trained and deployed with domain specific knowledge. Training and inference runs inside appl...Show moreLast updated: 30+ days ago
  • Promoted
Ruby on Rails Developer

Ruby on Rails Developer

Amigos Talent S.LAlameda, CA, United States
Full-time
We’re delighted to be partnering with.AI-powered procurement platform.Senior Engineer to join their awesome team.Levelpath’s AI-powered platform. Through streamlining and automating workflow process...Show moreLast updated: 15 days ago
Software Development Engineer II (Ruby on Rails), ART19

Software Development Engineer II (Ruby on Rails), ART19

Amazon.com LLC - A03San Francisco, California, USA
$129,300.00 yearly
ART19 is a leading audio platform, providing cutting-edge tools for on-demand hosting, distribution, ad serving, and audience measurement. At the intersection of publishers and advertisers, the comp...Show moreLast updated: 30+ days ago
Front End / Rails Web Developer Job at Heroku in San Francisco

Front End / Rails Web Developer Job at Heroku in San Francisco

MediabistroSan Francisco, CA, United States
Full-time
The Heroku Web Apps team is dedicated to beautiful, usable, and valuable web apps.We're highly collaborative, make decisions in minutes, and ship features in hours. We believe in getting customer va...Show moreLast updated: 30+ days ago
Senior Full Stack Engineer (Ruby on Rails)

Senior Full Stack Engineer (Ruby on Rails)

Alpha NetSan Francisco, California, United States
UIs that scale gracefully across different browsers and devices.Expertise in Python, React, and Ruby on Rails.Sold experience with PostgreSQL and NoSQL. Experience in cloud-based development using A...Show moreLast updated: 30+ days ago
  • Promoted
Senior Ruby on Rails Developer

Senior Ruby on Rails Developer

VirtualVocationsOakland, California, United States
Full-time
A company is looking for a Senior Ruby / Rails Developer.Key ResponsibilitiesDevelop and maintain high-quality code for software solutionsLeverage Rails tooling to build production solutionsCollabora...Show moreLast updated: 9 days ago
Software Engineer - Ruby on Rails

Software Engineer - Ruby on Rails

BeaconSan Francisco, CA, United States
1 day ago
Salary
$170,000.00–$190,000.00 yearly
Job type
  • Full-time
Job description

Ruby on Rails Engineer | Fast-Growing AI Venture-Backed Startup

Location : Remote (US or Canada)

Compensation : $170K - $190K + Equity

Tech Stack : Ruby on Rails, PostgreSQL, AWS, React (Bonus)

Join a trailblazing AI startup shaping the future of Reinforcement Learning from Human Feedback (RLHF)!

We're hiring a Ruby on Rails Engineer to join a high-growth, venture-backed company at the forefront of AI alignment and ethical machine learning. Our team is building a next-generation platform that helps AI models learn from human input and creator content, improving accuracy, safety, and real-world applicability.

Why You'll Love This Role

  • Impactful Work : Your contributions will directly shape how AI interacts with the world, ensuring it aligns with human values.
  • Fast-Paced, High-Growth Startup : Backed by top-tier investors, we're scaling fast-this is your chance to make a major impact early on.
  • Autonomy & Ownership : Work on complex, high-scale applications where your decisions truly matter.
  • Remote-First Culture : Join a distributed, highly collaborative team that values flexibility and results over hours logged.

What You'll Be Doing

  • Develop and maintain full-stack applications using Ruby on Rails for the backend and React for the frontend.
  • Design and optimize PostgreSQL databases to ensure scalability and performance.
  • Build and scale RESTful APIs to support AI-driven workflows and user interactions.
  • Implement intuitive and performant UI components in React, collaborating with design and product teams.
  • Ensure high availability, security, and performance across the stack as we scale.
  • Work closely with AI researchers and product teams to integrate machine learning models into the platform seamlessly

    • What We're Looking For

  • 5+ years of experience working with Ruby on Rails in a production environment.
  • Strong understanding of PostgreSQL, Redis, and background job processing (Sidekiq preferred).
  • Experience with scalable API development and RESTful services .
  • Solid understanding of software design principles, performance optimization, and security best practices .
  • Bonus) Familiarity with ML / AI applications or prior experience in AI-driven products.
  • Bonus) Exposure to React or frontend development is a plus!

    • Perks & Benefits

  • Competitive salary + equity package (Own a piece of what you build!)
  • Flexible remote work - Work from anywhere in the US.
  • Healthcare benefits
  • Opportunity to work with top-tier engineers & AI researchers solving cutting-edge problems.

    • Ready to build AI for the future? Apply now and help shape the next evolution of human-aligned AI.