Browse all Ruby on Rails jobs
This role is no longer open. It hasn't been listed in over 30 days. Browse current openings at Stealth Startup or all roles.
Stealth Startup logo
Stealth Startup·Vilnius, Vilniaus, Lithuania, United States·onsite

Founding Engineer

Posted 2 months ago
Apply now
Ruby on RailsMid-Senior

About the role

What you'll do

  • Serve as a Founding Engineer and technical partner, driving architectural decisions and product development.
  • Build and scale a document intelligence and data transparency platform handling multi-tenant data at scale.
  • Develop core features including intelligent document processing, embedded widgets, verification pipelines, and marketplace infrastructure.
  • Work autonomously with close collaboration with the founder who leads sales and business development.
  • Focus on full-stack development using Ruby on Rails, Vanilla JS, PostgreSQL, and Redis.

What you should know

  • Opportunity to gain true founding status with salary and equity alongside a trusted business partner.
  • Requires experience in scaling technology and teams, understanding challenges at various customer volumes.
  • Expect to work in a high-autonomy environment with frequent syncs but independent execution.
  • Role involves making strategic architectural decisions rather than just following a roadmap.
  • Nice-to-have experience includes document processing with AI models and building embeddable integrations.

About the company

  • Founded by an experienced entrepreneur with a track record of scaling companies to €15M+ annual revenue.
  • Operates in the document intelligence and data transparency industry with a focus on scalable SaaS solutions.
  • Values pragmatism, autonomy, and technical leadership in building foundational technology.
  • Small, early-stage startup with a founder-led culture emphasizing partnership and shared vision.
  • Unique approach to embedding real-time verified data widgets similar to Stripe’s evolution from buttons to infrastructure.

Key required skills

Ruby on RailsJavaScriptPostgreSQLRedisFull-stack development

Summary generated from the original posting.