Senior Web Developer

Cellbie is transforming the $100 billion global used smartphone market through an innovative software platform that delivers greater transparency and a superior B2B marketplace. By leveraging device diagnostics, advanced grading, and dynamic pricing algorithms, we provide sellers with pricing up to 50% higher than traditional trade-in options; buyers lead the auction by setting these prices, and enjoy guaranteed high-quality standards on their purchase.

As a fast-growing tech company, we are committed to reshaping the mobile trade-in ecosystem through data-driven solutions and trusted market connections.

To achieve our ambitious goals, we’re looking for Senior Web Developers to join our development team. At Cellbie, you will play a critical role in building core parts of the marketplace offering, infrastructure, and features driving transparency and fairness in a rapidly evolving market. You’ll have the opportunity to work across impactful front-end and back-end projects, contributing to scaling a $100M+ revenue business.

Cellbie’s engineering team has the freedom to innovate and uncover breakthroughs—and, in turn, influence our product roadmap. The complexity of our technical challenges will grow rapidly as we scale our interfaces and infrastructure, and address new customer opportunities.

• Collaborate with cross-functional teams to define and influence the technical roadmap.
• Design and build the next generation of Cellbie products.
• Ensure platforms are reliable, scalable, secure, and extensible.
• Champion operational excellence through robust monitoring and continuous improvement.
• Use AI as a force multiplier (Claude Code, OpenAI Codex, Git Hub Copilot).

As the ideal candidate, you:

• display excellent software engineering fundamentals, including an understanding of algorithms and data structures;
• are ready to tackle infrastructure challenges when needed;
• know modern web client development techniques and tools;
• have experience building, automating, deploying, and debugging production systems;
• have shown the ability to lead or take ownership of code;
• demonstrate perseverance when challenged with tough technical issues;
• recognize the importance of the end-user experience (UX) and strive to ensure high quality;
• have a demonstrated ability to work independently with minimal guidance, proactively manages tasks and priorities across multiple projects, analyzes and executes work efficiently;
• communicate effectively with small cross-functional teams;
• thrive in fast-paced, results-driven environments and have an interest in acquiring domain knowledge in the mobile circular economy

• We believe in rewarding excellence. The target compensation for this role features a competitive base salary of CAD $130,000 – $160,000, commensurate with experience, alongside a performance-driven bonus structure.
• Equity participation through stock options, so you literally own a piece of the company's success.
• “A la carte” health plan with $5000 to spend on what you need.
• Flexible remote work arrangements to allow you to drive success with a work-life balance.

No applicant will face discrimination/harassment based on race, color, ancestry, national origin, religion, age, gender, marital domestic partner status, sexual orientation, gender identity, disability status, or veteran status. Above and beyond discrimination/harassment based on “protected categories,” Cellbie also strives to prevent other, subtler forms of inappropriate behavior (e.g., stereotyping) from ever gaining a foothold in our office. Whether blatant or hidden, barriers to success have no place at Cellbie.