New York, NY Hybrid Employment

Avantos is hiring a Senior Full Stack Engineer

Responsibilities

  • 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.

Nice to Have

  • AI, fintech, or data-intensive product experience.
  • Experience shaping design systems, frontend platforms, or reusable architecture patterns.
  • Edge rendering, observability tooling, or event-driven architecture familiarity.
  • Experience with relational databases (Postgres)

Benefits

  • Competitive compensation + meaningful equity.
  • Opportunity to define the technical foundation of a greenfield AI platform.
  • A culture optimized for engineering excellence, focus, deep work, and ownership — not ticket factories.
About company
Avantos
Avantos is building the industry’s first AI-native operating system for financial services, redefining how firms onboard clients, deliver advice, and manage core servicing workflows. We just GA-d our MVP, which is a task management system for financial advisors to manage the work they do on behalf of their clients and an AI-notetaker that sits on calls between financial advisors and their clients and creates new tasks by pulling in transcript and CRM data. We’re a product-led team composed of founders and leaders from Wharton, MIT, top design programs, and prior unicorn SaaS companies.
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Job Details
Department Engineering
Category fullstack
Posted 8 months ago