Location:

Downtown Toronto, ON (100% Onsite)

Contract Duration:

Immediate start through December 2026 (High likelihood of extension based on performance)

Experience Level:

5-10+ Years

Interview Process:

Mandatory In-Person Technical Interview in Downtown Toronto.

About the Role We are seeking 10 highly skilled

Senior Python Backend Engineers

to join a critical platform modernization initiative. This is a high-impact role focused on building robust, scalable, and secure microservices that power core business operations. You will be working in a collaborative, agile workplace to solve complex distributed-system challenges.

Core Responsibilities

Architecture & Design:

Design, develop, and deploy high-availability microservices and RESTful APIs using Python.

System Development:

Build and maintain scalable backend systems capable of handling high transaction volumes with low latency.

Database Management:

Design and optimize schemas for both relational (SQL) and non-relational (NoSQL) databases.

Cloud Infrastructure:

Deploy and manage applications within public cloud environments (AWS/Azure/GCP), utilizing containerization and orchestration tools.

DevOps & CI/CD:

Champion modern DevOps practices, implementing robust CI/CD pipelines and infrastructure-as-code.

Collaboration:

Participate in system design reviews, code reviews, and technical documentation. Collaborate effectively with cross-functional teams to ensure seamless integration.

Observability:

Implement monitoring, logging,



and alerting solutions to ensure system health and performance.

Required Qualifications (Must-Haves)

Education:

Bachelor's or Master's degree in Computer Science, Engineering, or a related field from a

recognized Canadian university or college.

Experience:

5 to 10+ years of professional software development experience, with a strong focus on backend engineering.

Programming:

Expert proficiency in

Python

(not data science/scripting focused).

API Development:

Extensive experience designing and building RESTful APIs with JSON and documenting via

OpenAPI/Swagger .

Architecture:

Strong background in

Microservices

and

Distributed Systems

design (event-driven architecture, messaging queues).

Databases:

Proven experience with both SQL (e.g., PostgreSQL, MySQL) and NoSQL (e.g., DynamoDB, Cassandra, MongoDB).

Cloud:

Hands-on experience with at least one major cloud provider (AWS, Azure, or GCP).

DevOps:

Solid understanding of Git, CI/CD pipelines, and modern operational practices.

System Design:

Excellent system design capabilities and the ability to articulate trade-offs.

Preferred Qualifications (Nice-to-Haves)

Domain:

Experience in the

Financial Services, Payments, or Fintech

sector.

Containerization:

Production experience with

Docker

and orchestration tools like

Kubernetes

(EKS/AKS/GKE).

Security:

Knowledge of security best practices, compliance standards, and IAM.

Observability:

Experience with tools like Datadog, Prometheus, Grafana, or ELK Stack.

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📌 Back End Developer (Winnipeg)
🏢 CirrusLabs
📍 Winnipeg