Senior Python Developer

Toronto, ON
Hybrid
Posted Oct 10, 2026
1 position

$135,000–$155,000 / year

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Employment type: Full-time
Experience level: Senior · 5+ years
Minimum education: Bachelor’s degree
Posting language: English
Working hours: 40 hours per week
Office presence: 2 days per week
Seniority: Mid-Senior level
Application method: Direct apply is available

Job summary

Design, develop, test, document, and maintain complex software, including high-performance geoscience algorithms and scalable Python back-end services. Coordinate releases across teams, uphold quality and security standards, and contribute to design reviews and peer guidance.

Job details

We are assisting our reputable client in the geoscience industry with the search for a Senior Back End Developer (C++/Python). Location: Toronto, ON– Hybrid (2 days in the office) Compensation & Perks: $130,000–$155,000/year plus health benefits, RRSP contributions, profit sharing, employee stock purchase plan, educational reimbursement, and more. Role Overview: You will be working at the forefront of geoscience innovation, collaborating with domain experts to design and optimize advanced C++ algorithms that drive cloud-based modeling workflows. You’ll also build scalable Python back-end services that deliver these high-performance solutions to modern web applications. You will help shape the evolution of a cloud-based geoscience auto modeling platform leveraging machine learning to extract insights from drilling data. Key Responsibilities: Software Design Architect and design complex software applications, modules, and components. Apply modeling techniques aligned with established software design standards. Produce and communicate multiple design perspectives to meet functional, non-functional, and security requirements. Evaluate design alternatives and make informed trade-offs. Review and enhance both your own designs and those of colleagues. Software Development Develop, test, document, refactor, and maintain complex programs and integration services. Advocate for the adoption of appropriate development methods, tools, and best practices. Ensure consistent use of standards and tools across the team for high-quality, maintainable outcomes. Collaborate with domain experts to implement geoscience algorithms optimized for performance and maintainability. Participate in code reviews and provide guidance to peers. Release Management Plan and manage release schedules in line with business objectives. Coordinate release activities across multiple teams and stakeholders, ensuring quality, security, and compliance. Communicate release plans, progress, and results to stakeholders. Conduct post-release reviews and implement improvements. Qualifications: Bachelor’s degree in Computer Science, Engineering, or a related field. 7+ years of professional software development experience. Strong proficiency in Python. Experience designing, building, and maintaining scalable RESTful APIs, ideally using Python and FastAPI. Hands-on experience with major cloud platforms (AWS, Azure, GCP) and container orchestration (Kubernetes). Familiarity with infrastructure as code, CI/CD pipelines, and DevOps practices. Experience designing and maintaining CI/CD pipelines and automated tests across unit, integration, and end-to-end layers using tools such as Pytest and Playwright. Familiarity with React and TypeScript, plus an interest in emerging development practices including AI-assisted or agent-driven workflows. Assets: Experience with Flask or FastAPI. Front-end development experience. Exposure to Three.js or web-based 3D rendering.

What you’ll do

Requirements

Requires a bachelor’s degree in Computer Science, Engineering, or a related field and at least seven years of professional software development experience. Candidates should have strong Python skills and experience with scalable APIs, cloud platforms, Kubernetes, CI/CD, automated testing, and familiarity with React and TypeScript.