Principal Python Engineer

Iris's direct client, one of the Top 5 Bank in Canada, is looking to hire a Python Developer for a long term opportunity at Toronto, ON (Hybrid).

Our Client is a Canadian multinational financial services company and the largest bank in Canada by market capitalization. The bank serves over 17 million clients and has more than 89,000 employees worldwide. Bank is serving individual consumers, small and middle market businesses and large corporations with a full range of banking, investing, asset management and other financial and risk-management products and services.

Position: Python Developer

Location: Toronto, ON (Hybrid – 2-3 Days in Office/week)

Duration: Long Term Open Ended Contract

Job Details

• Lead the design, development, and optimization of Directed Acyclic Graph (DAG) based data orchestration systems.
• Drive innovation in scheduling, latency reduction, and system efficiency, with proven experience building production-grade custom DAG server solutions.

Required Skills & Experience

• 8+ years of Python engineering, with a strong focus on backend and system architecture.
• Deep expertise in DAG structures, workflow scheduling, and high-performance system design.
• Proven experience designing and building custom (home-grown) DAG engines/servers, not limited to off-the-shelf solutions (e.g., Airflow, Luigi).
• Prior work optimizing for system latency, efficiency, and resource management.
• Strong problem-solving skills, analytical mindset, and experience with profiling, tuning, and debugging large Python codebases.

About Iris Software Inc.

With 4,000+ associates and offices in India, U.S.A. and Canada, Iris Software delivers technology services and solutions that help clients complete fast, far-reaching digital transformations and achieve their business goals. A strategic partner to Fortune 500 and other top companies in financial services and many other industries, Iris provides a value-driven approach - a unique blend of highly-skilled specialists, software engineering expertise, cutting-edge technology, and flexible engagement models. High customer satisfaction has translated into long-standing relationships and preferred-partner status with many of our clients, who rely on our 30+ years of technical and domain expertise to future-proof their enterprises. Associates of Iris work on mission-critical applications supported by a workplace culture that has won numerous awards in the last few years, including Certified Great Place to Work in India; Top 25 GPW in IT & IT-BPM; Ambition Box Best Place to Work, #3 in IT/ITES; and Top Workplace NJ-USA.