Senior Backend Developer – UniUniJoin UniUni, a North American leader in last‑mile logistics, to work as a Senior Backend Developer.About UniUniUniUni delivers tens of millions of parcels annually across Canada and is rapidly expanding its footprint in the United States. Founded in 2019, UniUni is known for its tech‑driven innovation and crowdsourced delivery model, providing fast, economical, and reliable services to e‑commerce clients.What We OfferWe empower employees with opportunities to achieve professional goals, value lateral and vertical growth, and provide a dynamic, fun team environment.About the RoleWe are looking for a highly skilled Senior PHP Backend Developer to join our engineering team. You will design, build, and optimize backend services that power our core business systems.What You’ll DoDesign, develop, and maintain backend systems using PHP (Laravel preferred).Lead architecture discussions and provide guidance on best practices.Write clean, maintainable,



and testable code.Optimize application performance and scalability.Review code and mentor junior developers.Collaborate with front‑end developers and product teams to deliver end‑to‑end features.Integrate with internal and external APIs and services.Participate in incident analysis and continuous improvement of system reliability.QualificationsBachelor’s degree in Computer Science, Engineering, or related field, or equivalent practical experience.5+ years of experience in PHP backend development.Strong expertise in Laravel or other PHP frameworks.Solid understanding of MySQL or PostgreSQL, query optimization, indexing.Experience with RESTful APIs, microservices, and distributed systems.Familiarity with CI/CD pipelines, Docker, Linux environments.Good understanding of Redis and message queues.Robust debugging and problem‑solving skills.Experience in high‑concurrency or high‑availability systems is a major plus.Good communication skills and ability to work with cross‑functional teams.Work onsite in Richmond office (1 day WFH/week).Nice‑to‑HaveExperience with Elasticsearch or other NoSQL tools.Knowledge of cloud platforms (AWS, GCP, AliCloud).Familiarity with front‑end stacks.Proficiency in Chinese (spoken and/or written).Pay Range85,000 – 105,000 CAD per year (Hybrid, Vancouver, British Columbia).Seniority LevelMid‑Senior levelEmployment TypeFull‑timeJob FunctionEngineering and Information TechnologyIndustriesFreight and Package Transportation#J-18808-Ljbffr

📌 Senior Backend Developer - C$85,000 - C$105,000 A Year (Toronto)
🏢 UNIUNI
📍 Toronto