As of November 6, 2026, Jobsy lists 7 lead software engineer jobs in Mississauga, ON. The most active employers are Fitch Group, Arista Networks and Citi. Skills often requested: computer science, python, ci/cd and communication skills.
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6+ YOECandidates need 6 to 10 years of software engineering experience, at least 2 years in AI, LLM or agentic systems, and strong Python or Java (Spring Boot) skills. A bachelor's or master's degree in a quantitative field and knowledge of regulated financial environments are also expected.
Devin, GitHub Copilot, Claude Code, Google ADK, TensorFlow, PyTorch
Candidates need hands-on professional software development experience in Java, Python, JavaScript or React, and experience building RESTful APIs with frameworks such as Spring. They also need experience with event-driven systems, microservices, TDD, clean code, data structures, algorithms and SQL, plus a bachelor's degree in computer science or engineering.
6+ YOE3+ MgmtCandidates need 6+ years of enterprise software engineering experience, including 3+ years leading technical teams. They should be expert in Java and Spring Boot, with experience in messaging, containers, databases, and CI/CD.
Java, Spring Boot, Angular, Apache Kafka, RabbitMQ, Docker
Candidates need hands-on professional software development experience in Java, Python, JavaScript or React, and experience building RESTful APIs with frameworks like Spring. They also need a bachelor's degree in computer science or engineering, and skill with TDD, clean code, data structures, algorithms and SQL.
6+ YOE3+ MgmtCandidates need 6+ years of enterprise software engineering, including 3+ years leading technical teams. Strong Java and Spring Boot skills, messaging, containers and resilience patterns are essential, along with experience adopting AI development tools.
Java, Spring Boot, Angular, Apache Kafka, RabbitMQ, Docker
6+ YOECandidates need 6 to 10 years of software engineering experience, including 2 or more years on AI, LLM or machine learning work and production delivery. They need strong Python or Java skills, experience with cloud and container platforms, and knowledge of banking or regulated environments.
Docker, Kubernetes, OpenShift, GitHub Copilot, Devin, Claude Code
Candidates need extensive software engineering experience and mastery of all phases of the development lifecycle. They must work without supervision in complex environments, lead people and technical work, and manage difficult situations professionally.
Scientific research methodology, Research, Software development, Leadership, Recruitment, Onboarding
Common questions
Who is hiring lead software engineers?
Fitch Group (4), Arista Networks (4), Citi (3), Citi Canada Technology Services ULC (3) and Momentum Financial Services Group (2).
What skills do lead software engineer jobs ask for?
Postings most often mention computer science, python, ci/cd, communication skills, coaching, software development, aws and problem solving.