Jobs in Canada

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Added 42 mins ago
Software Developer in Test, Intern (Genesys Cloud)
Genesys
Toronto, ON
Full-time
You will work with technologies such as Java, Kotlin, Python, Selenium, Playwright, and AWS, while learning how engineering teams solve real-world challenges related to scalability,…
Added 42 mins ago
Software Developer in Test, Intern (Genesys Cloud)
Genesys
Toronto, ON
Full-time
Familiarity with at least one modern programming language (e.g., Python, TypeScript/JavaScript, or Java).
Added 42 mins ago
Software Developer in Test, Intern (WEM)
Genesys
Toronto, ON
Full-time
…supports billions of customer interactions globally. As a Software Developer Intern on the WEM Quality Assurance team, you will build AI-enhanced test automation for user interfaces and…
Added 42 mins ago
Software Developer in Test, Intern (WEM)
Genesys
Toronto, ON
Full-time
…supports billions of customer interactions globally. As a Software Developer Intern on the WEM Quality Assurance team, you will build AI-enhanced test automation for user interfaces and…
Added 42 mins ago
Software Developer Full-Stack Intern, AI Scoring, Evaluations and Surveys
Genesys
Toronto, ON
Full-time
Experience with a modern programming language like Java, Python, or JavaScript
Added 42 mins ago
Software Developer Intern, Predictions Data & Decision Science
Genesys
Toronto, ON
Full-time
Experience programming in at least one language such as Python, Java, C++, C#, or a similar language.
Added 42 mins ago
Software Developer in Test, Intern (Agent Development)
Genesys
Toronto, ON
Full-time
…develop their skills and fulfil their potential. As a Software Developer Intern/Co-op in Test on the Agent Development team, you will contribute across the software development lifecycle,…
Added 2 hours ago
Senior Software Engineer
Microsoft
Vancouver, BC
Full-time
…coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent…
Added 2 hours ago
Performance Engineer - Open Source
Jobgether
Canada
Full-time
Experience with one or more programming languages such as C, C++, Rust, Go, Python, Java, JavaScript, Node.js, or Dart.
Added 3 hours ago
Senior Product Security Engineer
Jobgether
Canada
Full-time
Experience with Python, Java, and/or JavaScript for security automation and tooling is an advantage.
Added 4 hours ago
Senior Consultant - GCP Agent Platform Architect
Deloitte
Toronto, ON
Full-time
Proficient in Python; comfortable with at least one of TypeScript / Java / Go for agent tools and services.
Added 4 hours ago
Data Engineer Sr
Insight
Toronto, ON
Full-time
Experience developing data solutions using Python, Scala, Java, or similar programming languages.
Added 4 hours ago
Winter 2027: Software Developer Co-op (4 or 8 months)
Intuit
Toronto, ON
Internship
Programming fundamentals. Experience in one or more languages such as Python, Java, JavaScript/TypeScript, or Go, with a solid understanding of core data structures and coding concepts.…
Added 5 hours ago
Co-op Winter 2027 – System of Systems Integration, Verification and Validation – 4-8 months
General Dynamics Missions System International
Ottawa, ON
Internship
Experience with scripting or programming languages such as Python, PowerShell, or Java.
Added 5 hours ago
Co-op Winter 2027 - Systems Integration, Verification, and Validation - 8-12 months
General Dynamics Missions System International
Ottawa, ON
Internship
Experience with scripting or programming languages such as Python, PowerShell, or Java.
Added 7 hours ago
Data Engineer Sr
Insight Enterprises, Inc.
Toronto, ON
Experience developing data solutions using Python, Scala, Java, or similar programming languages.
Added 7 hours ago
Associate Director - Lead Software Developer
Royal Bank of Canada
Toronto, ON
Full-time
…technical direction, design expertise, and implementation of Java Spring Boot applications and Python are all must…
Added 7 hours ago
Intern Developer, Back End Technologies
Kinaxis Inc.
Ottawa, ON
Internship
Programming experience with one or more of C/C++, .NET/C#, Java, Python, JavaScript, Go, Rust, SQL
Added 7 hours ago
Forward Deployed Solution Engineer – Applied AI FDE
ServiceNow
Montreal, QC
Full-time
Added 7 hours ago
Co-op Winter 2027 DevOps Engineering - 8-16 Months
General Dynamics Missions System International
Ottawa, ON
Internship
Knowledge of object-oriented programming languages such as C/C++, C#, Java, or Python.
Added 7 hours ago
AI Engineer
Tiger Analytics
Toronto, ON
Full-time
Proficiency in programming languages commonly used in AI (such as Python or Java) and familiarity with ML frameworks (e.g., TensorFlow, PyTorch, scikit-learn).
Added 8 hours ago
System Engineer
Vertage
Ottawa, ON · Kanata, ON
Full-time
Added 8 hours ago
Cloud Engineer
Vertage
Ottawa, ON · Kanata, ON
Contract
…Ford's Telemetry & Observability Platform (TOP) using GCP, Java/Python, Kubernetes, and modern DevOps…
Added 8 hours ago
Full Stack Developer, Automation & AI (GWO)
Scotiabank
Toronto, ON
Develop backend services, APIs, and integrations using Python, Java, and related technologies.
Added 8 hours ago
Senior Software Engineer
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Waterloo King
Full-time
Strong proficiency in Python and experience developing software using modern programming languages such as Java, JavaScript, TypeScript, or C#.

Jobgether

Performance Engineer - Open Source

Canada

Job type: Full-time
Posting language: English
Posted: Sep 25, 2026

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Original job description

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Performance Engineer - Open Source based in Canada.

This role is designed for engineers who bring exceptional rigor and clarity to software performance, efficiency, scalability, and correctness. You will work across the software stack, from CPUs, kernels, and runtimes to applications, databases, and web technologies. As a performance engineering specialist, you will help teams measure complex systems, identify bottlenecks, strengthen testing capabilities, and improve engineering practices. You will contribute to shared performance tooling, measurement frameworks, dashboards, and analytical capabilities while influencing performance culture across engineering teams. The role offers exposure to open source technologies, major silicon architectures, cloud platforms, and diverse technical environments. You will also have opportunities to mentor colleagues, lead initiatives, and apply your expertise across different products and engineering domains.

Accountabilities

Drive software performance, efficiency, scalability, and correctness within a specific engineering project.
Analyze systems, applications, and code to identify bottlenecks, performance regressions, scalability constraints, and opportunities for optimization.
Develop and improve shared tools, infrastructure, dashboards, measurement frameworks, and reporting capabilities for performance analysis.
Strengthen test harnesses, pipelines, benchmarks, and engineering processes to make previously difficult-to-measure areas observable and verifiable.
Apply performance engineering techniques across different layers of the stack, from CPU and kernel behavior through runtimes, databases, applications, and web technologies.
Collaborate with engineers and open source communities across different regions and technical disciplines to solve complex performance challenges.
Teach, mentor, and develop performance engineering skills within teams, helping establish a stronger culture of measurement, efficiency, and technical rigor.
Lead performance initiatives and influence engineering teams through technical expertise, clear communication, and practical recommendations.
Review code and technical designs with a focus on performance, scalability, efficiency, and correctness.
Work with hardware and cloud ecosystems to optimize software stacks for different architectures, CPU families, and hypervisors.
Share insights, tools, and practices across engineering teams to raise performance standards throughout the product portfolio.

Requirements

Demonstrated experience improving software performance, efficiency, scalability, or correctness through practical engineering work, personal initiatives, or professional projects.
Strong experience with Linux, ideally including Debian or Ubuntu environments.
Solid understanding of performance engineering concepts and the ability to investigate systems across multiple layers of the technology stack.
Knowledge of low-level CPU behavior, including caches, registers, memory, vectorization, and assembly language, is valuable.
Experience with kernel performance concepts such as scheduling, context switching, and hardware acceleration is a plus.
Familiarity with distributed systems performance, tracing, debugging, compiler optimization, profiling, or runtime performance.
Experience with performance measurement and profiling tools such as eBPF, D-Trace, flamegraphs, or comparable technologies.
Knowledge of benchmarking frameworks and performance measurement tools such as Phoronix Test Suite is beneficial.
Experience with one or more programming languages such as C, C++, Rust, Go, Python, Java, JavaScript, Node.js, or Dart.
Familiarity with database performance evaluation, including query plans, indexing, data modeling, tracing, and monitoring, is an advantage.
Strong analytical thinking and the ability to translate complex performance data into practical engineering decisions.
Excellent written and spoken English, with strong presentation and communication skills.
Demonstrated leadership, initiative, and commitment to mentoring and developing technical skills in others.
Confidence to exchange feedback, challenge assumptions respectfully, and share ideas openly.
Strong interpersonal skills, curiosity, flexibility, accountability, and a results-oriented mindset.
Passion for technology demonstrated through personal projects, open source contributions, technical experimentation, or other initiatives.
A bachelor's degree in Computer Science, Mathematics, Physics, or a related technical discipline is preferred.
Willingness and ability to travel internationally twice a year for company events lasting up to two weeks.

Benefits

Geographically adjusted compensation based on location, experience, and performance.
Performance-driven annual bonus or commission in addition to base compensation.
Distributed work environment with twice-yearly in-person team sprints.
Personal learning and development budget of USD 2,000 per year.
Annual compensation review.
Recognition and performance rewards.
Annual holiday leave.
Maternity and paternity leave.
Employee Assistance Programme.
Opportunities to travel internationally and meet colleagues in different locations.
Priority Pass access and travel upgrades for eligible long-haul company events.

How Jobgether Works

We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.

We appreciate your interest and wish you the best!

Why Apply Through Jobgether?

Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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More about this job

Responsibilities

Improve software performance, efficiency, scalability, and correctness by analyzing systems across hardware, kernels, runtimes, databases, applications, and web technologies. Develop shared performance tools and measurement practices, lead optimization initiatives, review designs and code, and mentor engineers across teams and open source communities.

Requirements

Candidates should have practical experience improving software performance and strong Linux skills, with the ability to investigate systems across multiple layers and interpret performance data. Relevant experience may include profiling, benchmarking, distributed systems, low-level CPU or kernel behavior, programming, and database performance; strong communication, leadership, mentoring, and English skills are also expected.

Skills

Performance Engineering
Linux
Performance Profiling
Benchmarking
Systems Analysis
Performance Optimization
Scalability
Distributed Systems
eBPF
D-Trace
Flamegraphs
C
C++
Rust
Go
Python

Benefits

Geographically Adjusted Compensation
Annual Performance Bonus Or Commission
Distributed Work Environment
Personal Learning And Development Budget
Annual Compensation Review
Recognition And Performance Rewards
Annual Holiday Leave
Maternity And Paternity Leave
Employee Assistance Programme
International Travel Opportunities
Priority Pass Access And Travel Upgrades

Visa sponsorship

Not detected in the job text

Keywords

Performance Engineering
Software Performance
Efficiency
Scalability
Correctness
Linux
Debian
Ubuntu
CPU Architecture
Kernel Performance
Scheduling
Context Switching
Hardware Acceleration
Distributed Systems
Tracing
Debugging
Compiler Optimization
Profiling
eBPF
D-Trace
Flamegraphs
Phoronix Test Suite
Benchmarking
C
C++
Rust
Go
Python
Database Performance
Open Source

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