Senior Java Library Engineer - Open-Source & Distributed

MongoDB; Toronto; Hybrid; CAD 137,000 - 189,000; Full time

Job summary

A prominent database company in Toronto is seeking a skilled Java Developer to design and develop open-source libraries. The ideal candidate will have over 4 years of experience with Java and a passion for software development. Responsibilities include collaborating with product teams, supporting libraries, and mentoring junior staff. The position offers a hybrid working model and competitive compensation in the range of CAD 137,000—189,000.

Benefits

Flexible paid time off

Health, dental, and vision benefits

Parental leave policy

Qualifications

• 4+ years of experience writing high‑quality software.
• Experience implementing libraries or applications in Java.
• Understanding of concurrency, parallelism, and distributed systems.

Responsibilities

• Design and support open-source libraries using MongoDB.
• Collaborate with teams for new MongoDB features.
• Mentor junior engineers in technical skills.

Skills

High-quality software writing

Java programming

Concurrency and distributed systems

Communication skills

Advocating for testing

Job description

A prominent database company in Toronto is seeking a skilled Java Developer to design and develop open-source libraries. The ideal candidate will have over 4 years of experience with Java and a passion for software development. Responsibilities include collaborating with product teams, supporting libraries, and mentoring junior staff. The position offers a hybrid working model and competitive compensation in the range of CAD 137,000—189,000.