Senior Software Engineer – Backend Systems

Micromart

. Design, build, and maintain backend systems .

Posted 9/15/2026full-timeToronto • CanadaSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong expertise in building and maintaining backend systems, with a focus on Node.js, TypeScript, and relational databases. Proven ability to collaborate across teams and manage production software systems while prioritizing simplicity and long-term maintainability.

Highest-signal resume keywords

Node.js DevelopmentTypeScript ProficiencyRelational Database ManagementCI/CD PracticesPayment Systems Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Backend DevelopmentSystems ArchitectureAPI IntegrationAutomated TestingProduction Support

Soft Skills

CollaborationProblem-SolvingAdaptability

Tools & Technologies

PostgresReactMonoreposReal-Time Services

Industry Keywords

Fraud PreventionDevice ManagementOperational ToolingAI-Driven WorkflowsDistributed Systems

Tech Stack

Tools & technologies

Distributed SystemsJavaScriptNode.jsPostgresReactSDLCTypeScript

About the role

Key responsibilities & impact

Design, build, and maintain backend systems
Work on product integrations, operational tooling, and reliability improvements across backend services, APIs, and supporting systems
Work on payment systems, fraud prevention, device management, and real-time services
Build and evolve internal tools and workflows used by operators and internal teams
Own systems end to end, from design and implementation through deployment and production support
Collaborate closely with product, frontend, and smart store teams
Make pragmatic tradeoffs that prioritize clarity, quality, and long-term maintainability
Evolve the core systems that power Micromart as it scales
Work on platform systems, AI-driven workflows, payments, fraud prevention, and real-time logic

Requirements

What you’ll need

Strong experience building, owning, and operating production software systems
Experience working within large codebases or monorepos and improving architecture incrementally over time
Solid backend and systems fundamentals, including Node.js, TypeScript, and relational databases such as Postgres
Experience working across the stack, including modern frontend frameworks such as React
Familiarity with modern SDLC practices, including CI/CD, automated testing, code reviews, and building secure, production-quality systems
Comfort working through ambiguity and real-world constraints
A bias toward simplicity, craftsmanship, and continuous improvement
Nice to have: Experience with payment systems and financial workflows
Nice to have: Experience with platforms, infrastructure, or distributed systems
Nice to have: Experience building systems that interact with real-world devices or real-time events
Nice to have: Background in startups or small teams where ownership mattered more than process

Benefits

Comp & perks

Competitive salary and equity
Health, dental, and vision benefits for employees and dependents
Monthly fitness or wellness stipend
Hybrid work environment, with access to our Toronto office
Meals provided when working from the office
A centrally located downtown office near Union Station