Software Engineer III

Trane Technologies; Montreal (administrative region); Hybrid; CAD 154,000 - 216,000; Full time

Job summary

Trane Technologies in Montreal, QC, is seeking a Senior Software Engineer to lead backend development for our cloud-based Building Management System. You will design scalable microservices, drive architecture decisions, and mentor engineers across cross‑functional teams.

We value strong Python expertise, experience with AWS, and a collaborative mindset. French-English bilingual communication is required to support diverse clients and colleagues.

Qualifications

• 5+ years of professional software development experience.
• Strong expertise in object-oriented programming, software architecture, and design patterns.
• Experience designing and building distributed systems using microservices and AWS managed services (Lambda, SQS, API Gateway, EventBridge).
• Advanced proficiency in Python.
• Experience leveraging AI-assisted development tools and workflows.
• Strong proficiency with Git and modern software development workflows.
• Knowledge of testing strategies, CI/CD, observability, and maintainability.
• Excellent communication skills across engineering and product teams.
• A passion for solving complex technical problems and mentoring engineers.

Responsibilities

• Design, develop, and deliver scalable, secure, and high-performance backend systems and microservices.
• Lead the technical design and implementation of complex features and platform capabilities.
• Partner with Product Managers to translate business needs into scalable solutions.
• Drive architectural decisions across APIs, cloud infrastructure, distributed systems, and microservices.
• Evaluate technical trade-offs to balance scalability, reliability, and delivery timelines.
• Leverage AI-assisted development to improve engineering productivity and software quality.
• Collaborate with cross-functional teams to deliver end-to-end solutions.
• Lead design reviews, code reviews, and champion engineering best practices.
• Mentor engineers through technical guidance and knowledge sharing.

Skills

Object-oriented programming

Software architecture

Design patterns

Excellent communication

Python

Git

Education

Bachelor's or Master's in Software Engineering or Computer Science

Tools

AWS (Lambda, SQS, API Gateway, EventBridge)

Job description

Be a part of our mission! As a world leader in creating comfortable, sustainable, and efficient climate solutions for buildings, homes and transportation, it's our responsibility to put the planet first. For us at Trane Technologies, and through our businesses including Trane® and Thermo King, sustainability is not just how we do business—it is our business. Do you dare to look at the world's challenges and see impactful possibilities? Do you want to contribute to making a better future? If the answer is yes, we invite you to consider joining us in boldly challenging what's possible for a sustainable world.

Learn about our benefits designed for you to Thrive at work and at home.

We boldly go.

Where Is The Work

Our BrainBox AI Workplace Presence model dedicates specific in-office days each month to focus on relationships, learning and innovation.

What's In It For You

A sustainable future demands ongoing digital advancement. Our digital solutions team leads the way in developing next-generation climate technology focused on reducing demand-side energy consumption and emissions. Our team—including BrainBox AI, Nuvolo, and more—combines technical expertise with advanced analytics to create data-driven solutions that add real value for customers, communities, and the planet. Whether you're advancing AI in HVAC or driving analytics for greater efficiency, your ideas will help engineer solutions for stronger communities and a sustainable world.

You'll get to build the brains behind smarter buildings. As a Software Developer III, you'll lead the design and development of the backend services that power our Cloud-based Building Management System. You'll solve complex technical challenges, influence architectural decisions, and drive the delivery of scalable, reliable software that has a real-world impact. Working alongside talented engineers and cross-functional teams, you'll help shape the technical direction of our platform while mentoring others and raising the engineering bar.

What You Will Do

• Design, develop, and deliver scalable, secure, and high-performance backend systems and microservices.
• Lead the technical design and implementation of complex features and platform capabilities.
• Partner with Product Managers and stakeholders to translate business needs into scalable technical solutions.
• Drive architectural decisions across APIs, cloud infrastructure, distributed systems, and microservices.
• Evaluate technical trade-offs to balance scalability, reliability, and delivery timelines.
• Leverage AI-assisted development to improve engineering productivity and software quality.
• Collaborate with cross-functional teams to deliver high-quality end-to-end solutions.
• Lead design reviews, perform code reviews, and champion engineering best practices.
• Mentor engineers through technical guidance, code reviews, and knowledge sharing.
• Own technical delivery, coordinating implementation across multiple workstreams.
• Improve system performance, reliability, observability, automation, and developer tooling.
• Contribute to technical documentation, architecture standards, and continuous process improvement.

What You Will Need To Be Successful

• Bachelor's or Master's degree in Software Engineering, Computer Science, or an equivalent field.
• 5+ years of professional software development experience.
• Strong expertise in object-oriented programming, software architecture, and design patterns.
• Proven experience designing and building distributed systems using microservices and AWS managed services (Lambda, SQS, API Gateway, EventBridge, etc.).
• Advanced proficiency in Python.
• Experience leveraging AI-assisted development tools and workflows.
• Strong proficiency with Git and modern software development workflows.
• Deep understanding of software engineering best practices, including testing strategies, CI/CD, code quality, observability, and maintainability.
• Excellent communication skills with the ability to collaborate effectively across engineering and product teams.
• A passion for solving complex technical problems, mentoring engineers, and continuously improving systems and engineering practices.

Language Requirements

French-English bilingualism is required.

In addition to fluency in French, successful candidates must have full professional proficiency in English in order to support and collaborate with English-speaking clients, colleagues and/or various stakeholders.

Annual Base Salary Range Or Hourly Base Pay Range

$111 308,33 - $155 435,00

Compensation Type

Salary

Incentive Eligible

No

Sales Commission Eligible

No

Disclaimer

We strive to provide competitive compensation for this position, tailored to a variety of factors. The actual compensation will depend on elements such as seniority, merit, geographic location, education, experience, travel requirements, and union designation. Our compensation range is generally based on the national average for the country. Additionally, benefits may vary depending on the region, business alignment, union involvement, and employee status.

This posting is for an existing vacancy. The position is imminently available, and qualified candidates will be considered for immediate placement.

We offer competitive compensation and comprehensive benefits and programs. We are an equal opportunity employer; all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, pregnancy, age, marital status, disability, status as a protected veteran, or any legally protected status.