Fluxx

Senior Fullstack Engineer

Fluxx

full-time

Posted on:

Location Type: Remote

Location: United States

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Salary

💰 $153,000 - $231,000 per year

Job Level

About the role

  • Design, build, and maintain fullstack features across the Grantseeker Pro platform and related products
  • Collaborate cross-functionally with product managers, designers, and engineers to deliver high-impact user experiences
  • Contribute to system architecture and technical decision-making, ensuring scalability, performance, and reliability
  • Write clean, maintainable, and well-tested code across frontend and backend systems
  • Lead and participate in code reviews, providing thoughtful feedback and mentoring other engineers
  • Improve development processes, tooling, and engineering standards to increase team velocity and product quality

Requirements

  • 10+ years of professional software engineering experience, with strong fullstack development expertise
  • Proficiency in React/TypeScript/JavaScript, with experience building modern web applications (frontend and backend)
  • Experience working with PostgreSQL and designing efficient data models
  • Familiarity with cloud infrastructure, preferably Google Cloud Platform (GCP)
  • Experience with or interest in Claude Code (Anthropic) or AI-assisted development tools
  • Strong problem-solving skills, ownership mindset, and ability to work effectively in a remote, collaborative environment
Benefits
  • Medical, dental, and vision insurance
  • Flexible time off
  • Paid sick leave
  • 12 weeks of fully-paid parental leave
  • Annual learning and development stipend
  • Internet stipend
  • One-time home office set-up stipend
  • 401(k) retirement plan with company match
  • Incentive stock options
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
fullstack developmentReactTypeScriptJavaScriptPostgreSQLcloud infrastructureGoogle Cloud PlatformAI-assisted development toolssystem architecturedata modeling
Soft Skills
problem-solvingownership mindsetcollaborationmentoringfeedbackcommunicationleadershipprocess improvementteam velocityproduct quality