• Job Description

  Req#: 32839324478

  Join to apply for the Software Engineer role at Underdog.io

  Join to apply for the Software Engineer role at Underdog.io

  This range is provided by Underdog.io. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

  Base pay range

  $150,000.00/yr - $220,000.00/yr

  Full Stack Engineer (React & Rails)

  About the Company

  A rapidly scaling SaaS startup revolutionizing operations for one of the largest yet underserved service industries globally. Backed by top-tier venture firms, our platform empowers businesses to streamline workflows, improve profitability, and deliver exceptional customer experiences. Join a team of ex-FAANG engineers and industry experts building mission-critical tools used in thousands of daily operations.

  The Role

  As a Full Stack Engineer, you'll architect and deliver high-impact features across our web and mobile platforms, directly shaping the product roadmap for a solution already trusted by enterprise clients. Collaborate with cross-functional teams to solve complex challenges in an industry ripe for digital transformation.

  Key Responsibilities

  • Ship end-to-end solutions using React (TypeScript) for frontend and Ruby on Rails for backend systems, ensuring seamless integration between web and mobile apps.
  • Optimize performance, scalability, and security across PostgreSQL databases, RESTful APIs, and AWS cloud infrastructure.
  • Lead code reviews and architectural decisions while managing technical debt in a fast-paced startup environment.
  • Partner with product managers and customer success teams to translate non-technical user needs into elegant technical solutions.
  • Implement CI/CD pipelines and automated testing frameworks to maintain rapid, reliable deployment cycles.
  • Troubleshoot production issues and contribute to on-call rotations for mission-critical systems.

  Qualifications

  • 3+ years of full-stack development experience with React and Ruby on Rails in production environments.
  • Proven track record of shipping high-quality B2B SaaS products for non-technical users.
  • Strong grasp of cloud platforms (AWS), containerization (Docker), and infrastructure-as-code principles.
  • BS/MS in Computer Science or equivalent hands-on engineering experience.
  • Must be based in the SF Bay Area and comfortable with a hybrid work model (2-3 days in-office).

  Bonus Skills

  • Experience with React Native for cross-platform mobile development.
  • Familiarity with facility management, logistics, or field-service software.
  • Background in early-stage startups with

  Why Join?

  • $150k–$220k base salary + equity in a high-growth venture-backed startup.
  • Hybrid flexibility with modern offices in SF/South Bay + remote work options.
  • Top-tier health benefits (medical/dental/vision) and 401(k) matching.
  • Unlimited PTO, quarterly team offsites, and $3k/year learning stipend.

  How to Apply

  Submit your resume to

  Underdog.io is a modern recruiting platform. One of our hiring partners is looking to hire a Full Stack Engineer using the Underdog marketplace. Start your confidential search today using fact-based matching.

  Seniority level

  • Seniority level

    Mid-Senior level

  Employment type

  • Employment type

    Full-time

  Job function

  • Job function

    Information Technology

  • Industries

    Software Development

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• About the company

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