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Senior Software Developer Engineer Jobs in Ontario

RQ11139 - Sr. Software Developer

Toronto, ON ยท On-site

CA$87.38 - CA$104.86/hr

RQ11139 - Sr. Software Developer 6+ month contract (132 business days) ONSITE 5 days - 21 College Street, Toronto MUST HAVES: * Over 8+years of overall experience in entire Software Development Life ...

RQ11141 - Sr. Software Developer

Toronto, ON ยท On-site

CA$87.38 - CA$104.86/hr

RQ11141 - Sr. Software Developer 1-year contract (253 business days) ONSITE 5 days - 21 College Street, Toronto MUST HAVES: * Over 8+years of overall experience in entire Software Development Life ...

RQ11140 - Sr. Software Developer 6+ month contract (147 business days) ONSITE 5 days - 21 College Street, Toronto MUST HAVES: * Over 8+years of overall experience in entire Software Development Life ...

The Job As a Senior Software Developer, CNN Connected TV Devices , you will lead technical efforts ... Finally, as a senior engineer, you'll model and evangelize a positive, inclusive, and constructive ...

Senior Software Developer (C++) - Lidar & Geospatial Systems Join Teledyne Optech, part of Teledyne Technologies, where you'll help turn complex lidar data into powerful geospatial insights. You'll ...

Job Requisition ID # 26WD95787 L'affichage de poste en francais suivra / The French job posting follows. 26WD95787, Senior Software Developer (Back End) Position Overview We are seeking a Senior ...

RQ11260 - Senior Software Developer - ERP\Case Management Working Status: On-Site Location: 222 Jarvis Street, Toronto Hours per day: 7.25 Must Have * PeopleSoft System Development and Tools ...

New

Senior Software Developer

Toronto, ON ยท On-site +1

CA$107K - CA$157K/yr

We are seeking a Senior Software Developer to join our Fusion Data team in Toronto, Canada and help build full stack solutions that power core data capabilities for Autodesk Fusion. This team focuses ...

... portfolio of software to give customers the power to solve their design, business, and ... Autodesk's Digital Experience Engineering team is looking for an experienced Senior Developer who ...

We'relooking for a highly motivated Senior Software Developer to join our dynamic team in building a modern SaaS application for digital twins. In our fast-paced, collaborative, product-centric ...

We're looking for a highly motivated Senior Software Developer to join our dynamic team in building a modern SaaS application for digital twins. In our fast-paced, collaborative, product-centric ...

Senior Software Developer Aversan Inc. (www.aversan.com) is a trusted multi-service engineering and electronics manufacturing company. Aversan delivers leading-edge and reliable safety-critical ...

RQ10475 - Sr. Software Developer 9+ month contract (182 business days) - possible extension ONSITE 5 days - 40 St. Clair Ave. W Must haves: * Some experience in developing UI applications using the ...

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Senior Software Developer Engineer information

What are the key skills and qualifications needed to thrive as a Senior Software Developer Engineer, and why are they important?

A Senior Software Developer Engineer requires advanced programming skills, deep understanding of software architecture, and several years of experience with a relevant degree in computer science or a related field. Familiarity with modern development frameworks, version control systems like Git, and certifications such as AWS Certified Developer or Microsoft Certified: Azure Developer Associate are often expected. Strong problem-solving abilities, effective communication, and leadership skills help in mentoring teams and collaborating on complex projects. These competencies ensure high-quality software delivery, efficient teamwork, and innovation within dynamic tech environments.

What are Senior Software Developer Engineers?

Senior Software Developer Engineers are experienced professionals who design, develop, and maintain complex software systems. They lead technical projects, mentor junior developers, and collaborate with cross-functional teams to deliver high-quality solutions. Their responsibilities often include architecting software, reviewing code, ensuring best practices, and troubleshooting critical issues. Senior developers play a key role in shaping technical strategies and guiding the overall direction of software projects.

What are some common challenges faced by Senior Software Developer Engineers when leading project teams?

Senior Software Developer Engineers often encounter challenges such as balancing technical leadership with hands-on coding, managing cross-functional communication, and aligning team members with project goals. They may also need to mentor junior developers while ensuring code quality and timely delivery of features. Navigating competing priorities and rapidly changing requirements requires strong problem-solving skills and adaptability, as well as effective collaboration with project managers, designers, and QA teams.

What is the difference between Senior Software Developer Engineer vs Software Developer?

AspectSenior Software Developer EngineerSoftware Developer
Required CredentialsBachelor's degree in CS or related field; 3+ years experience; sometimes certifications like Microsoft or AWSBachelor's degree in CS or related field; 0-2 years experience; certifications are optional
Work EnvironmentTeam lead roles, project planning, mentoringDevelopment tasks, coding, testing
Employer & Industry UsageTech companies, software firms, startupsSame as Senior Software Developer Engineer

The main difference is experience level and responsibilities. Senior Software Developer Engineers typically have more experience, take on leadership roles, and mentor junior developers, while Software Developers focus on coding and implementing features. Both roles are essential in software development teams, but the senior position involves more strategic and supervisory duties.

What cities in Ontario are hiring for Senior Software Developer Engineer jobs? Cities in Ontario with the most Senior Software Developer Engineer job openings:
Infographic showing various Senior Software Developer Engineer job openings in Ontario as of June 2026, with employment types broken down into 85% Full Time, 10% Part Time, 3% Temporary, and 2% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution.

Senior Software Developer

Jatom Systems Inc.-CAN

Kanata, ON โ€ข Hybrid

Full-time

Posted 8 days ago


Job description

We are seeking a talented and motivated Senior Software Engineer to join our dynamic team in a Scrum-based development environment. The ideal candidate will have strong expertise in C# and Angular, possess excellent problem-solving skills, and demonstrate a willingness to learn and adapt to new challenges. This role requires outstanding communication abilities and a solid foundation in software engineering principles. Candidates must hold a degree in Software Engineering, Computer Science, or a related field and be eligible for a Top Secret security clearance.

Key Responsibilities:
โ€ข Collaborate with cross-functional Scrum teams to design, develop, and deliver high-quality software solutions.
โ€ข Write clean, efficient, and maintainable code in C# and Angular to meet project requirements.
โ€ข Participate in all Scrum ceremonies, including sprint planning, daily stand-ups, and retrospectives.
โ€ข Analyze user requirements, design technical solutions, and implement features that align with business goals.
โ€ข Troubleshoot, debug, and resolve software defects in a timely manner.
โ€ข Address customer tickets, by providing prompt and durable resolutions.
โ€ข Stay up to date with emerging technologies, frameworks, and best practices to contribute to continuous improvement.
โ€ข Create and maintain comprehensive technical documentation.
โ€ข Ensure compliance with security standards and protocols, especially those required for Top Secret clearance eligibility.

Required Qualifications:
โ€ข Bachelorโ€™s degree in Software Engineering, Computer Science, or a related discipline.
โ€ข Proven experience developing applications using C#, ASP.NET and Angular frameworks.
โ€ข Familiarity with Agile/Scrum methodologies and the software development lifecycle.
โ€ข Strong problem-solving skills with the ability to analyze complex technical challenges.
โ€ข Willingness and enthusiasm to learn new technologies and adapt to evolving project needs.
โ€ข Excellent verbal and written communication skills for effective collaboration within a team.
โ€ข Must be eligible to obtain and maintain a Top Secret security clearance

Preferred Qualifications:
โ€ข Experience developing in Kubernetes, microservices architecture.
โ€ข Familiarity with docker, helm, ruby
โ€ข Knowledge of additional front-end or back-end frameworks and best practices.
โ€ข Agile development experience, including the use of automated unit and integration tests.
โ€ข Familiarity with Cypress test frameworks
โ€ข Familiarity with DevOps practices, CI/CD pipelines, and version control systems such as Git.

Personal attributes:
โ€ข Excellent communication skills โ€“ both written and verbal.
โ€ข Self-motivated and capable of managing multiple priorities and tasks
โ€ข Loves to be a part of a team.
โ€ข Creative and efficient in proposing solutions to complex, time-critical problems.
โ€ข Strong analytical and problem-solving skills with a high attention to detail.

How We Work
You will be expected to work in a remote/hybrid environment reporting to our Kanata, Ontario location 2 or more times per week.

About JSI
JSI is built on purpose, that of making a difference in the world.

Founded in 1979, this privately-owned technology company is the North American leader in designing and developing acquisition, collection and analysis solutions for law enforcement and intelligence communities.

With 4Sight โ€“ JSIโ€™s single, unified, product suite โ€“ customers can combine any number of disparate data sources into a highly intuitive, visually-focused platform. The result? JSIโ€™s customers spend less time working with data and more time seeing patterns, understanding trends, and gaining perspective (and making the world a safer place).
With over 400 employees and a strong, growing global presence in Canada, the U.S., Australia and Germany, JSI is not only the dominant player in its industry, it is also known for its fun, high-performing, purpose-driven corporate culture.

In accordance with the Accessibility for Ontarians with Disabilities Act (AODA), JSI will provide accommodation accessible formats and communication supports for the interview process upon request

Our hiring process does not use artificial intelligence (AI) tools for screening, assessing, or selecting applicants. All applications are reviewed and evaluated by our HR team.