Senior Fullstack Engineer (AI)

TL;DR

Senior Fullstack Engineer (AI): Building AI-powered development tools for crypto applications and AI agents with an accent on frontend architecture and scalable backend services. Focus on implementing real-time data flow between frontend and backend systems and defining engineering best practices for full-stack development.

Location: Global remote

Salary: $80k-$120k base

Company

Plexus is partnered with a team building the next generation of AI-powered development tools for crypto applications and AI agents, starting with Solana and expanding to EVM and new high-performance chains.

What you will do

• Design and develop frontend architecture using modern frameworks and libraries (React, Next.js, TypeScript, etc.).
• Implement REST, gRPC, WebSockets, and HTTP SSE interfaces for real-time, reliable data flow between frontend and backend systems.
• Work on frontend analytics, monitoring, and observability to ensure excellent user experience and system visibility.
• Develop scalable backend services using Go (Golang), Node.js, or similar cloud-native technologies.
• Help define engineering best practices for frontend and full-stack development.

Requirements

• 7+ years of professional experience in software engineering, with at least 3+ years in full stack or frontend-heavy roles.
• Deep understanding of frontend architecture, modern web frameworks, and JavaScript/TypeScript ecosystems.
• Proficiency in React, Next.js, or Vue.js, plus a solid grasp of state management, SSR/SSG, and component-driven design.
• Strong backend development experience in Go, Node.js, or Python.

Culture & Benefits

• Global remote