Fastapi Python Jobs in Montreal, QC (NOW HIRING)

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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:

The Senior Software Engineer on the Algorithm Team plays a key role in designing, building, and maintaining the core software systems that power BrainBox AI’s autonomous HVAC optimization platform. This role focuses on developing scalable microservices, enabling real‑time data processing, and collaborating with data scientists and ML engineers to bring intelligent building algorithms into production.

What you will do:

• Design, build, and maintain high‑performance microservices that support BrainBox AI’s autonomous HVAC optimization platform.

• Collaborate closely with data scientists and machine learning engineers to productionize advanced building‑control algorithms.

• Develop reliable, scalable APIs using FastAPI to support real‑time data ingestion, processing, and decision‑making workflows.

• Implement event‑driven architectures using Kafka to enable high‑throughput streaming and distributed processing.

• Create, optimize, and maintain NoSQL data models with DynamoDB to support large‑scale operational workloads.

• Deploy and manage cloud‑native services on AWS following best‑practice security, performance, and resiliency standards.

• Build, containerize, and maintain application components using Docker for consistent deployment across environments.

• Contribute to architectural decisions, ensuring systems are robust, maintainable, and scalable as the platform evolves.

• Troubleshoot and resolve complex production issues, ensuring high system reliability and performance.

• Participate in Agile ceremonies, code reviews, and collaborative planning with a highly cross‑functional team.

• Mentor junior developers and provide guidance on coding standards, design practices, and problem‑solving approaches.

Requirements & Qualifications

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or related field

• 5+ years of professional software development experience

• Advanced proficiency in Python, including asynchronous programming

• Experience building microservices and APIs using FastAPI

• Hands‑on experience with Kafka or similar real‑time messaging technologies

• Strong knowledge of AWS cloud services (ex: Lambda, ECS, EC2, S3, IAM)

• Experience with DynamoDB or comparable NoSQL databases

• Experience using Docker to package and deploy applications

• Ability to write clean, maintainable, well‑tested code

• Experience working in Agile environments

• Background working on algorithmic or data‑driven systems is a strong asset

• Experience mentoring teammates and contributing to architectural decisions

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:

Yes

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.