Role: Senior Backend Developer

Length: 1 year contract (strong potential for extension)Rate: $90-$100/hr INCLocation: Downtown Toronto (1 day onsite)Your Newpany

Join a high-performing digital engineering team within a leading, enterprise-scale organization focused on building modern, scalable platforms.

This team operates in a fast-paced environment, driving innovation through microservices and distributed architecture to support millions of users across digital products.

Your New Role

As a Senior Backend Developer, you will play a critical hands-on role in designing, building, and maintaining scalable backend systems and APIs.

You will contribute directly to the development of microservices within a distributed architecture, while also supporting ongoing enhancements and maintenance of existing systems.

This is a highly technical, coding-heavy role requiring strong ownership and deep backend expertise.

Key Responsibilities: Design, develop, and maintain scalable backend services using Java and Kotlin Build and optimize APIs within a microservices architecture Drive system design and contribute to architectural decisions across distributed systems Write high-quality,



production-ready code with strong testing practices Maintain and enhance existing backend services and microservices Work within event-driven architectures supporting real-time systems Collaborate closely with cross-functional engineering teams What Youll Need to Succeed 10+ years of backend development experience, with a strong focus on building scalable systems Proven senior-level experience as a hands-on Backend Developer (not just design/lead) Strong expertise in Java and Kotlin Demonstrated experience building scalable APIs and distributed systems Deep experience with microservices architecture Strong hands-on experience with Spring / Spring Boot Solid knowledge of SQL and relational databases Experience working with event-driven architectures Strong system design capabilities and ability to influence architecture Experience with unit testing and development testing practices Proven experience maintaining and evolving existing production microservices Nice-to-Have: Experience with Google Cloud Platform (GCP) What Youll Get in Return Opportunity to work on large-scale, high-impact backend platforms Exposure to contemporary engineering practices across distributed systems A highly collaborative, engineering-driven team environment Flexible hybrid working model What You Need to Do Now

If youre a true senior-level backend developer with strong expertise in Java, Kotlin, and microservices, apply directly or reach out for a confidential discussion.

This posting is for an existing vacancy with the organization. AI may be used to screen, assess or select applicants for the position. #LI-DNI #1125377 - Shivangi Gupta

📌 Sr Back End Java Developer (with Kotlin) (Toronto)
🏢 Hays
📍 Toronto