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Hopper

Senior Full Stack Product Engineer

Hopper

. Identify and execute improvements to the codebase that make it easier for both humans and AI agents to move fast and ship safely.

Posted 5/7/2026full-timeRemote • 🇧🇷 BrazilSeniorWebsite

Tech Stack

Tools & technologies
Scala

About the role

Key responsibilities & impact
  • Identify and execute improvements to the codebase that make it easier for both humans and AI agents to move fast and ship safely.
  • Work with a group of senior engineers in a low-process environment powered by trust and autonomy.
  • Drive decisions and consensus asynchronously with thoughtful documentation and specs.
  • Build new features from top to bottom — from UX to database. Ship fast. Learn fast. Repeat.
  • Architect scalable solutions and foundational patterns that let us efficiently launch new partner experiences.
  • Work directly with PMs and business partners to define and refine our roadmap. Your voice and technical vision matter.
  • Collaborate with a diverse group of people, giving and receiving feedback for growth.

Requirements

What you’ll need
  • A natural drive to fearlessly dive into an unknown codebase and deliver results fast.
  • Strong product thinking — your conception of quality and architecture is anchored in the customer experience, not in technical elegance for its own sake.
  • The ability to direct AI agents and automated workflows to build and maintain complex systems, and the judgment to know when to step in and when to let them run.
  • Experience designing the guardrails and feedback loops that keep AI-assisted development productive and reliable.
  • Experience with, or a mastery-level willingness to learn, distributed system development in Scala.
  • The ability to articulate not just how you'd solve a problem, but why, and what tradeoffs you're accepting.

Benefits

Comp & perks
  • Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages.
  • Carrot Cash travel stipend.
  • Hopper will cover 100% of the employee premiums for EOR-offered health, dental, life and short term disability insurances with SulAmerica.
  • Hopper offers employees in Brazil monthly meal vouchers
  • Very generous parental leave
  • Flexdesk All Access Pass & Work-from-home stipend.
  • Entrepreneurial culture where pushing limits and taking risks is everyday business.
  • Open communication with management and company leadership.
  • Small, dynamic teams = massive impact.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
codebase improvementdistributed system developmentScalaAI agentsautomated workflowssystem architectureUX designdatabase managementfeedback loopsguardrails design
Soft Skills
product thinkingcommunicationcollaborationfeedbackdecision makingautonomytrustadaptabilityproblem solvingjudgment