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Senior Software Engineer

Job in Toronto, Ontario, M5A, Canada
Listing for: TapMango Inc
Full Time position
Listed on 2026-02-15
Job specializations:
  • Software Development
    Cloud Engineer - Software, Software Engineer, Backend Developer, Senior Developer
Salary/Wage Range or Industry Benchmark: 110000 - 140000 CAD Yearly CAD 110000.00 140000.00 YEAR
Job Description & How to Apply Below

The TL;

DR

We need someone who can build rock-solid solutions for our loyalty and ordering platform that stays reliable when thousands of merchants and their customers are using it simultaneously.

You'll architect microservices for complex workflows (ordering, payments, loyalty points), own critical features from API to database, lead projects and developers, and make architectural calls that balance moving fast with not breaking production.

Salary Range: CAD $110,000 - $140,000

What's the actual job?

You're building the systems that power real business operations—orders, payments, loyalty rewards, promotions. When the platform handles high-volume traffic reliably during peak hours while maintaining data integrity and transaction accuracy, that's your architecture and code at work.

Most of your time:

  • Designing and building scalable backend services using .NET Core, Web API, and microservices
  • Implementing complex business logic for ordering, loyalty programs, promotions, and payments
  • Integrating with POS systems, payment gateways, delivery platforms, and third-party APIs
  • Architecting data models and optimizing MS SQL Server for high-transaction workflows
  • Making architectural decisions and influencing technical direction
  • Leading technical projects from conception to deployment
  • Some of your time:

  • Mentoring and guiding developers through technical challenges and code reviews
  • Building Angular frontends and working across the full stack when needed
  • Performance optimization and scalability work for multi-tenant SaaS environment
  • Dev Ops activities—CI/CD pipelines (Team City, Octopus), deployment automation, on-call rotation
  • Handling edge cases, failure scenarios, and distributed transactions
  • Our hot take on AI

    We use AI tools. A lot. Claude, Cursor, Copilot—the whole squad.

    Use AI to generate boilerplate code, explore architectural patterns, refactor legacy systems, and speed up development. For example, complex data migrations or API scaffolding? Let AI handle the repetitive parts while you focus on the system design and business logic that actually matters.

    Your expertise is best spent on owning code quality, making architectural decisions, understanding domain complexity, and ensuring the system works correctly under real-world conditions—not manually writing CRUD endpoints.

    We want engineers who use AI like a force multiplier—to build faster and explore more options, not to replace critical thinking about system design.

    You should have

  • 5+ years backend development with strong .NET expertise (.NET Core, MVC, Web API)
  • Deep understanding of RESTful APIs, microservices architecture, and distributed systems
  • SQL mastery—complex queries, performance optimization, data modeling with MS SQL Server
  • Knowledge of messaging tech (Rabbit

    MQ, Kafka, Azure Service Bus) and event-driven architectures
  • Strong debugging skills and familiarity with APM tools (Datadog, New Relic, Application Insights)
  • Understanding of security best practices and PCI compliance
  • Leadership experience—mentoring developers, leading projects, influencing technical decisions
  • Bonus points for

  • Restaurant/QSR or retail tech background
  • Experience building e-commerce, ordering, POS, or payment systems
  • Understanding of loyalty programs, promotions, or transactional domains
  • Multi-tenant SaaS architecture experience
  • Azure cloud services, containerization (Docker, Kubernetes)
  • Background integrating with POS systems or payment gateways
  • Mobile backend development or real-time systems exposure
  • Angular or modern frontend framework experience
  • The vibe check

    Month 1:
    Understanding product architecture and critical systems, completing onboarding on key services, demonstrating effective AI tool usage, shipping first meaningful contribution

    Month 2:
    Owning and delivering significant features or technical improvements, participating actively in architectural discussions and code reviews, identifying technical debt or performance bottlenecks, building credibility as a technical leader

    Month 3:
    Driving measurable improvements in performance, reliability, or developer productivity, mentoring team members through pairing and technical guidance, leading technical initiatives independently, preventing…

    Position Requirements
    10+ Years work experience
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