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Senior Java Backend Developer Jobs in Toronto, ON

United Airlines

Senior JAVA Developer

Toronto, ON · On-site

... Engineering, or related field. * 10+ years of IT experience with at least 3-5 years in a Solution Architect role. * Proven experience delivering enterprise-grade Java and Big Data solutions.

Collabera Canada Inc

Be Seen First

Senior Java Developer (Capital Market/Terraform)

Toronto, ON · On-site

CA$48 - CA$120/hr

Senior Java Developer (Capital Market and Front Office/Backoffice/Cache Management/ Terraform) Duration: 6+ months (Contract) Possibility of Extension Location: Toronto - Hybrid Pay Rate Range: $50 ...

New

Konrad

Senior Java Developer

Toronto, ON · Hybrid

CA$120K - CA$145K/yr

About The Role As a Full Stack Java Developer you'll be tasked with working on web application development in Java and Spring Boot. Working within the software development team, your duties will ...

Td

Senior Java Developer, TD Securities

Toronto, ON

CA$102K - CA$125K/yr

About This Role We are looking for a savvy Senior Java Developer to join our growing Prime Technology team. The hire will be responsible for designing, building, maintaining, and supporting ...

Varicent

Staff Backend Developer

Toronto, ON

... Developer with strong engineering skills and a track record of designing and delivering complex ... and senior stakeholders, and play a key role in driving technical quality, scalability, and ...

Varicent

Staff Backend Developer

Toronto, ON

CA$145K - CA$190K/yr

... and senior stakeholders, and play a key role in driving technical quality, scalability, and ... Design and build scalable backend services, APIs, and data pipelines that support core product ...

Capgemini

Java Full-stack Developer

Mississauga, ON · On-site

CA$86K - CA$127K/yr

* The Senior Engineer in Production Management will be responsible for the development and overall ... The candidate must have Java backend development experience with Core Java Java EE Springboot ...

Capgemini

Java Full-stack Developer

Mississauga, ON · On-site

CA$86K - CA$127K/yr

* The Senior Engineer in Production Management will be responsible for the development and overall ... The candidate must have Java backend development experience with Core Java Java EE Springboot ...

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Senior Java Backend Developer information

What is a senior Java backend developer?

A Senior Java Backend Developer is responsible for designing, implementing, and maintaining the server-side logic of applications using Java. They work with databases, APIs, and cloud services to ensure high performance and scalability. Additionally, they collaborate with front-end developers, DevOps teams, and business stakeholders to deliver robust and secure solutions. Seniors are expected to mentor junior developers and contribute to architectural decisions and best practices.

What are the typical daily responsibilities of a senior Java backend developer?

Senior Java Backend Developers usually spend their days designing and implementing backend components, reviewing code, and optimizing system performance. You may take part in architecture discussions, mentor junior developers, and troubleshoot complex technical issues. Collaboration with front-end developers, QA testers, and project managers is frequent to ensure seamless integration and successful product delivery. Additionally, you might be responsible for maintaining system documentation and keeping up-to-date with new technologies relevant to backend development. Overall, the role combines hands-on coding with leadership and cross-functional teamwork.

What are the key skills and qualifications needed to thrive in the senior Java backend developer position, and why are they important?

To thrive as a Senior Java Backend Developer, you need deep knowledge of Java, object-oriented design, RESTful APIs, and database systems, typically backed by a degree in computer science or related field and several years of relevant experience. Expertise in frameworks like Spring, ORM tools such as Hibernate, version control systems like Git, and, often, certifications such as Oracle Certified Professional Java Programmer are valued. Strong problem-solving, leadership, and clear communication skills help in mentoring junior developers and collaborating across teams. These competencies ensure robust, scalable backend solutions and effective team coordination in complex software projects.

What are the most commonly searched types of Java Backend Developer jobs in Toronto, ON?

The most popular types of Java Backend Developer jobs in Toronto, ON are:

What are popular job titles related to Senior Java Backend Developer jobs in Toronto, ON?

For Senior Java Backend Developer jobs in Toronto, ON, the most frequently searched job titles are:

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The top searched job categories for Senior Java Backend Developer jobs in Toronto, ON are:

What cities near Toronto, ON are hiring for Senior Java Backend Developer jobs?

Cities near Toronto, ON with the most Senior Java Backend Developer job openings:

Senior Java Backend Developer jobs near you
Infographic showing various Senior Java Backend Developer job openings in Toronto, ON as of August 2026, with employment types broken down into 74% Full Time, 12% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Senior Backend Engineer (Rust & Cloud Platform) - Remote Canada

Sangoma

Toronto, ON • Remote

CA$120K - CA$135K/yr

Full-time

Medical, Dental, Vision, Life, PTO

This job post has expired 1 day ago. Applications are no longer accepted.

Job description

Senior Backend Engineer (Rust & Cloud Platform)

Built it. Scale it. Own it.

Sangoma is a global leader in business communications, delivering innovative cloud-based solutions including UCaaS, CCaaS, VoIP, SIP Trunking, Managed Connectivity, and Communications Platform services. We are seeking a Senior Backend Engineer to join our Sangoma Meet Cloud team and help build the highly available, scalable, and secure services that power mission-critical communications for businesses around the world.

We are looking for an engineer who enjoys solving complex technical challenges, building reliable cloud services, and contributing to distributed systems at scale. The ideal candidate is a strong backend developer with deep Rust experience, a passion for clean architecture, and a desire to work collaboratively in a fast-moving engineering environment.

Please note that we are unable to provide employment-based sponsorship now or in the future.

Location: Remote (Eastern or Central Time Zones Preferred)

Your Role:
  • Design, develop, and maintain scalable, secure, and highly available backend services and APIs using Rust.
  • Build distributed cloud-native applications that integrate with internal systems, third-party platforms, and communications technologies.
  • Develop and maintain REST, GraphQL, and WebSocket-based services that support real-time collaboration and communications.
  • Contribute to the ongoing operation, reliability, and performance of the Sangoma Meet Cloud platform, ensuring SLA adherence and 24/7 service availability.
  • Design and implement solutions that improve scalability, resilience, observability, and security across the platform.
  • Collaborate with Product Management, Engineering, DevOps, and frontend teams to deliver new features and enhancements.
  • Troubleshoot complex production issues, perform root cause analysis, and implement long-term solutions.
  • Participate in architectural discussions, technical planning, code reviews, and technology roadmap decisions.
  • Develop and improve CI/CD pipelines, Infrastructure-as-Code deployments, and operational automation.
  • Mentor junior engineers and contribute to a culture of technical excellence, collaboration, and continuous improvement.

Requirements

Your Background:

  • 5+ years of professional backend software development experience.
  • 3+ years of hands-on Rust development in production environments.
  • Strong experience developing and maintaining Linux-based backend services.
  • Experience building cloud-native applications and distributed systems.
  • Experience with Infrastructure-as-Code, CI/CD pipelines, and Git.
  • Strong understanding of REST APIs, GraphQL, WebSockets, HTTPS, and networking fundamentals.
  • Experience with relational databases such as PostgreSQL or MySQL.
  • Experience working with services written in Rust and collaborating across environments that include Node.js and/or Java.
  • Strong problem-solving, troubleshooting, and communication skills.
  • Bachelor's degree in Computer Science, Engineering, or equivalent practical experience.
  • Fluent English, written and verbal.

Preferred Qualifications

    • Experience with Nix and/or NixOS.
    • Experience with Tokio, Axum, Actix, or similar Rust frameworks.
    • Experience supporting high-availability SaaS platforms.
    • Experience with WebRTC, SIP, VoIP, or real-time communications technologies.

*Please note: Candidates must be authorized to work without current or future sponsorship. Sangoma is unable to provide employment-based visa sponsorship for this position.

Benefits

What We Offer:

    • Extended Healthcare Plan (Medical, Disability, Dental & Vision)
    • RPP - Group RRSP
    • Group Life - AD&D - Critical Illness Insurance
    • Paid Time Off Benefits
    • Work From Home - Flexible hours
    • Entrepreneurial work environment partnered with high growth career opportunities.
    • We value transparency and fairness in our compensation practices. For this role, we offer a salary range of $120,000 to $135,000 CAD per year, commensurate with experience, qualifications, and location

Are you ready to make a direct impact on the company and be rewarded for your performance? Are you ready to take on a new challenge?

Equal opportunity employer as to all protected groups, including protected veterans and individuals with disabilities.