Avantos.ai

Senior Full Stack Engineer

Avantos.ai

full-time

Posted on:

Location Type: Hybrid

Location: New York City • New York • United States

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Job Level

Senior

Tech Stack

GoJavaScriptNext.jsReact

About the role

  • Lead frontend architecture and experience design — owning React/Next.js interfaces end-to-end, with a focus on performance, UX, and scalability
  • Integrate cleanly with backend services and contribute to Golang APIs when needed — not just consume them
  • Collaborate tightly with product and design on experience decisions — not just implementation
  • Influence architecture, reliability, performance strategy, and engineering standards
  • Write high-quality, clean, well-structured code — and enforce that quality in reviews
  • Act as a technical force multiplier — mentoring, unblocking, and setting the technical bar

Requirements

  • 8+ years of engineering experience building production web applications
  • Expert-level frontend depth — React + Next.js mastery (streaming, modern rendering patterns, state strategy)
  • Proven ability to design high-performance, scalable, modern frontend systems with clarity and intentionality
  • Solid backend competency — ideally Golang , but strong API design fluency is required
  • Deep understanding of performance, caching, hydration, code splitting, bundling, deploy strategy, DX/UX tradeoffs
  • Product and architecture instincts — you care about what should be built, not just how
Benefits
  • Competitive compensation + meaningful equity
Applicant Tracking System Keywords

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

Hard Skills & Tools
ReactNext.jsGolangAPI designperformance optimizationscalabilitycode qualitycachingcode splittingbundling
Soft Skills
mentoringcollaborationinfluencetechnical leadershipproblem-solving