Staff Software Developer for Fintech & Distributed Systems

Colonial Group; Toronto; On-site; CAD 140,000 - 170,000; Full time

Job summary

Colonial Group is seeking a Staff Software Developer to design, develop, and maintain software applications that solve real-world problems and enhance our products. You will collaborate with cross-functional teams to deliver high-quality, scalable, and innovative solutions.

8+ years of experience, expert Python, distributed systems, and DevOps expertise are required. You will lead technical discussions, drive roadmaps, and mentor engineers while ensuring secure, compliant financial workflows.

Qualifications

• BS degree in Computer Science or a related technical discipline, or equivalent practical experience.
• Expert experience with Python.
• Expert experience with Distributed Systems Design and/or Event-Driven development.
• Expert experience and understanding of pyramid testing methodologies.
• Expert experience with build & deployment automation (CI/CD, GitHub Actions, Jenkins/TeamCity).
• Experience with AWS, SQL, and Pub/Sub patterns (Kafka).
• Expert experience with version control systems (Git).
• Expertise in architecting secure and scalable financial systems, with a deep understanding of data encryption, access controls, fraud detection, and regulatory compliance.
• Proven experience building and optimizing workflows for the loan origination lifecycle (e.g., application, credit assessment, funding, portfolio management).
• Hands-on experience with the integration of financial platforms, such as loan origination systems (LOS), ERPs, and servicing systems.
• Experience maintaining and extending an existing codebase, adapting to pre-existing patterns and tracing the code’s path of execution
• Expert experience in debugging, profiling, and optimizing distributed systems using tools like Datadog, CloudWatch Logs, and distributed tracing frameworks.
• Experience with Docker, Kubernetes, and Deployment automation.
• 8+ years of experience.

Responsibilities

• Actively and consistently support all efforts to simplify and enhance the customer experience.
• Build on, establish, and document best practices and coding standards.
• Support product delivery teams by providing guidance on technical solutions when asked.
• Conduct code reviews, develop high-quality documentation, and build robust test suites.
• Own the overall performance of products and frameworks within a defined area of focus.
• Previous experience leading POCs or technical tool adoption initiatives.
• Provide technical support for multiple applications within the technology portfolio, including both code development and DevOps.
• Provide technical leadership, mentorship, and guidance to multiple teams, fostering a culture of continuous improvement and technical excellence.
• Be empowered to lead and complete software projects with minimal guidance from managers.
• Lead team discussions to define technical requirements for new and current products.
• Develop roadmaps and prioritize technical debt to effectively plan features and work.
• Respond-to and troubleshoot highly complex problems quickly, efficiently, and effectively.
• Mentor junior engineers.
• Other duties as assigned

Skills

Python

Distributed Systems

Event-Driven Development

Git

AWS

SQL

Docker

Kubernetes

CI/CD

Data Encryption

Education

BS degree in Computer Science or related discipline

Tools

GitHub Actions

Jenkins

TeamCity

Datadog

CloudWatch Logs

Kafka

Job description

Colonial Group is seeking a Staff Software Developer to design, develop, and maintain software applications that solve real-world problems and enhance our products. You will collaborate with cross-functional teams to deliver high-quality, scalable, and innovative solutions.

8+ years of experience, expert Python, distributed systems, and DevOps expertise are required. You will lead technical discussions, drive roadmaps, and mentor engineers while ensuring secure, compliant financial workflows.