Senior Software Engineer

SalesJack

. Own product features end-to-end, from problem discovery and scoping through design, development, launch, and iteration .

Posted 11/9/2026full-timeToronto • CanadaSenior💰 CA$160,000 - CA$200,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates extensive experience in full stack engineering, particularly with React, Next.js, and Node.js, while effectively leading product feature development and architectural decisions. Proficient in building and deploying AI-powered solutions and managing multi-tenant systems with a strong focus on customer engagement and feedback.

Highest-signal resume keywords

Full Stack Engineering ExperienceDeep Expertise In React And Next.jsAdvanced PostgreSQL SkillsProduction Experience With RBAC SystemsHands-On Experience With BullMQ

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Node.jsNext.jsReactPostgreSQLBullMQAI Coding AgentsLLM-Powered FeaturesAuthentication SystemsAuthorization SystemsSchema Design

Soft Skills

Product JudgmentCustomer EngagementMentoringTradeoff Decision-Making

Tools & Technologies

BullMQClaude CodeCursorCodexMCPAPI IntegrationCI/CDObservability

Industry Keywords

Multi-Tenant B2BData ModelsAPI SurfacesQueue/Job SystemsStructured Data Extraction

Tech Stack

Tools & technologies

ERPJavaScriptNext.jsNode.jsPostgresRabbitMQReact

About the role

Key responsibilities & impact

Own product features end-to-end, from problem discovery and scoping through design, development, launch, and iteration
Talk directly with customers through discovery calls, support tickets, and ride-alongs with sales representatives
Make architectural decisions for data models, API surfaces, and frontend composition, and document the reasoning
Build across the Node.js stack using Next.js, Node services, BullMQ, and PostgreSQL
Use AI coding agents to plan, implement, refactor, test, and review code while remaining accountable for shipped code
Design and ship LLM-powered features for structured data extraction, sales-representative workflow automation, and ERP and sales-data insights
Design and operate authentication, authorization, and multi-tenant RBAC systems
Build queue-driven automation with BullMQ for long-running processes, retries, LLM calls, and external ERP and third-party API integrations
Establish standards for testing, code review, CI/CD, observability, and AI-assisted development
Build reusable AI context, agent instructions, skills, and MCP integrations
Mentor engineers and lead design reviews
Partner with founders and lead engineers on architectural direction and engineering standards

Requirements

What you’ll need

8–10 years of full stack engineering experience, including owning production systems at meaningful scale
Deep expertise in React and Next.js
Strong backend experience with Node.js
Advanced PostgreSQL skills, including schema design, query optimization, migrations under load, and multi-tenant patterns
Production experience with authentication and authorization/RBAC systems in multi-tenant B2B contexts
Hands-on experience with BullMQ or comparable queue/job systems such as Sidekiq, RabbitMQ, SQS, or Temporal
Hands-on experience building and running AI agents with verifiable correctness, guardrails, eval harnesses, golden datasets, self-verification loops, and human-review checkpoints
Daily use of AI coding agents such as Claude Code, Cursor, Codex, or similar
Experience shipping LLM-powered features to production, including prompt design, structured outputs, tool use, and failure-mode handling
Familiarity with agent frameworks, MCP, and model APIs from Anthropic, OpenAI, or others
Ability to define and measure AI feature quality through evals
Ability to scope fuzzy customer problems into shippable plans
Strong product judgment and ability to make tradeoff decisions
Willingness to talk to users and incorporate customer feedback

Benefits

Comp & perks

Equity
Comprehensive health benefits
Highly competitive salary
Fast iteration and direct collaboration with founders
Unfiltered customer feedback