Senior AI-Native Full Stack Engineer
SalesJack
Build AI-native software in Toronto as a Senior Full Stack Software Engineer, using React, Next.js, Node.js, and PostgreSQL onsite. At SalesJack, you will own major product surfaces from customer discovery through production delivery. You will shape architecture, make product decisions, and ship daily with AI coding agents. The work spans LLM-powered features, durable workflows, authentication, and multi-tenant systems. Key Responsibilities:
Own features from problem discovery through iteration Build across Next.js, Node.js, BullMQ, and PostgreSQL Design LLM features with evaluations, guardrails, and budgets Operate authentication, authorization, and multi-tenant RBAC Set engineering standards and mentor engineers Requirements:
Eight to ten years of full stack experience Deep React and Next.js expertise Strong Node.js and advanced PostgreSQL experience Production AI agent and LLM feature experience Hands-on AI coding agent workflow experience Apply senior full stack judgment across AI development, product architecture, and production software at SalesJack in Toronto.
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Own features from problem discovery through iteration Build across Next.js, Node.js, BullMQ, and PostgreSQL Design LLM features with evaluations, guardrails, and budgets Operate authentication, authorization, and multi-tenant RBAC Set engineering standards and mentor engineers Requirements:
Eight to ten years of full stack experience Deep React and Next.js expertise Strong Node.js and advanced PostgreSQL experience Production AI agent and LLM feature experience Hands-on AI coding agent workflow experience Apply senior full stack judgment across AI development, product architecture, and production software at SalesJack in Toronto.
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Reference: WJ-3875_16153675 · Posted 11 Nov 2026, 08:39 PM