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Senior Full Stack Developer - Web Platform

Job in Toronto, Ontario, M5A, Canada
Listing for: Sago Mini
Full Time position
Listed on 2026-06-04
Job specializations:
  • Software Development
    Web Developer, Software Engineer, Backend Developer
Salary/Wage Range or Industry Benchmark: 65 - 85 CAD Hourly CAD 65.00 85.00 HOUR
Job Description & How to Apply Below

Sago Mini is an award-winning company devoted to play.

With three subscription services and over 10 million monthly active users, Sago Mini creates apps that seed imagination, grow wonder, and bring thoughtful design to life for preschoolers and parents worldwide.

Proudly Canadian, Sago Mini is a subsidiary of Spin Master, a leading global children’s entertainment company.

Along with sister studios Toca Boca and Originator, Sago Mini is part of the Piknik bundle – a collection of the world’s best apps for kids in one subscription.

  • About the Role Sago Mini is hiring a Senior Full Stack Developer to take on a leading technical role on our Web Store team.

    In this role, you will drive the development of our new Direct-to-Consumer (DTC) web channel, building and improving scalable web store services that complement our existing App Store subscription infrastructure.

    This role suits a senior candidate with solid technical chops who enjoys working in cross-functional teams to empower our product and marketing initiatives.

    This is a 6-month engagement for an independent contractor (incorporation or sole proprietorship) for 35-40 hours per week.

    The role offers remote flexibility across Canada or a Toronto-hybrid arrangement.

    Both options require alignment with our core hours of 10am- 5pm EST/EDT.

  • The anticipated salary range for this independent contractor position is an hourly rate of $65 to $85/hr.

    The final rate offered to a successful candidate will be dependent on several factors that may include but are not limited to years of experience within the job, years of experience within the required industry, education, etc.

    This job posting is tied to an open vacancy.

  • You’ll thrive in this role if you… Love building from 0 to 1:
    You are excited to roll up your sleeves and take ownership of building and shipping new features for a fresh DTC web store.

    Are a self-starter who values autonomy:
    As a contractor driving this initiative, you are comfortable managing your own momentum, building technical solutions, and delivering clean, reliable code with minimal oversight.

    Are a collaborative pragmatist:
    While you will be the main driver of the web store, you know how to effectively collaborate with internal engineers who will step in to help, especially when tying into existing App Store subscription systems and cross-functional services.

    Balance speed with stability:
    You know how to move fast to launch features, but you don't sacrifice the architectural integrity needed for a seamless user checkout experience.

    Communicate with clarity:
    You can easily articulate technical dependencies and requirements to internal team members, making integration phases smooth and efficient.

    What You’ll Be Doing Drive the execution of a new web store initiative:
    Serve as the lead technical contributor on the new web storefront for the Piknik subscription plan, building in major blocks from payment integration to analytics, to deliver features that are fast, responsive, and highly secure.

    Build across the stack:
    Develop both the user-facing frontend elements that delight our customers and the robust backend services that handle the heavy lifting (auth, account management, and subscription routing).

    Implement integrations:
    Architect and build secure, scalable integrations with third-party payment gateways (e.g., Stripe, GTM, etc) and our internal subscription management services.

    Collaborate closely with the Web Platform team:
    Work day-to-day with the Engineering Manager and platform developers, participating in sprints, design reviews, and code reviews to ensure alignment with Sago Mini’s technical standards.

    Prioritize simple, scalable solutions:
    Evaluate technical trade-offs daily.

    You’ll be trusted to sweat the details where it counts, like payment security and data integrity, while knowing when to keep things simple to maintain momentum.

    Ensure quality and reliability:
    Write clean, testable code, implement monitoring, and utilize our modern CI/CD pipelines to ensure seamless, high-quality deployments to our AWS infrastructure.

    Qualifications and Skills Proficiency in AI-powered software engineering :
    You are good at embedding AI coding tools…

  • Position Requirements
    10+ Years work experience
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