Braintrust is hiring a

Sr. Ruby on Rails Engineer - Freelance



Braintrust is a user-owned talent network that connects top-tier professionals with the world's leading enterprises. We prioritize transparency, eliminating middlemen and high markups, ensuring job-seekers are matched swiftly to innovative roles while clients benefit from unparalleled efficiency and quality.


The hiring process for this role involves completing your Braintrust profile, applying directly to the role on Braintrust, and undergoing a one-time screening to ensure you meet our vetted talent specifications. After this, the hiring team will contact you directly if they believe you are a suitable match.

Our process isn't for everyone, that's intentional. If you believe that you are a top candidate for this job, please join our network to give yourself the opportunity to work with top companies.


  • JOB TYPE: Freelance/ Contract Position (no agencies/C2C - see notes below)
  • LOCATION: Remote - North America
  • SALARY RANGE: $125 - $150 /hr
  • ESTIMATED DURATION: 40hr/week - Long term
  • EXPERIENCE: 10+ years



  • Proven experience as a Ruby on Rails Engineer, preferably in a senior or lead role.
  • Extensive knowledge of Ruby on Rails and its ecosystem.
  • Strong expertise in building and maintaining large-scale applications.
  • Experience with test-driven development and enhancing test suites.
  • Familiarity with micro services architecture and best practices.
  • Proficiency in system monitoring and uptime management.
  • eCommerce experience (a plus).
  • Strong problem-solving skills and a passion for continuous learning.
  • Excellent communication and teamwork abilities.

What you’ll be working on

About Us:

At Software Habit Inc., we're not just a company; we're a collective of experienced managers, engineers, and designers who have been crafting digital products for nearly 15 years. Our impressive track record includes successfully guiding two companies through acquisitions and one through an IPO. We are passionate about delivering leadership, expert guidance, and top-tier customer service to all our clients.

Job Description:
Are you an experienced Ruby on Rails Engineer ready to take on a challenging role in a premier software technology partner? If you're passionate about building scalable applications, breaking up monoliths into services, and ensuring system uptime, we want you to join our team.

  • Legacy Application Takeover: Lead the charge in taking over a substantial Rails application that forms the backbone of a digital health company, ensuring its continued functionality and scalability.
  • Test Suite Enhancement: Strengthen and expand the test suite for the application to ensure robustness and reliability.
  • Microservices Architecture: Drive the process of breaking up the monolithic architecture into micro services, optimizing the system for scalability and maintainability.
  • System Monitoring: Implement effective monitoring solutions to ensure system uptime and performance, proactively identifying and addressing issues.
  • eCommerce Expertise (a plus): If you have experience in the eCommerce sector, your insights and skills will be highly valuable in enhancing our offerings.


Our employers all have varying legal and geographic requirements for their roles, they trust Braintrust to find them the talent that meet their unique specifications. For that reason, this role is not available to C2C candidates working with an agency. If you are a professional contractor who has created an LLC/corp around their consulting practice, this is well aligned with Braintrust and we’d welcome your application.

Braintrust values the multitude of talents and perspectives that a diverse workforce brings. All qualified applicants will receive consideration for employment without regard to race, national origin, religion, age, color, sex, sexual orientation, gender identity, disability, or protected veteran status.

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