Job Title: Senior Python Developer

Location: Toronto, ON. Hybrid (3 days/week on-site)

Job Type: 6 month contract to start

Language: English- strong written and spoken communication skills required

Compensation: $75/hr - $85/hr

About the Opportunity

As a Senior Python Developer, your work will directly support customer communication systems for a leading financial services organization. You’ll work on robust batch and real-time messaging platforms, leveraging Python and AWS services to deliver improvements that impact millions of customers. The environment is independent and fast-paced, where your problem-solving skills and technical initiative are highly valued. You’ll join a collaborative team of skilled engineers while contributing to internal tools, automated testing suites, and backend services that ensure campaigns and alerts run smoothly behind the scenes. This role offers exposure to event-driven, serverless architectures, batch processing, and internal tooling, all within a culture that values learning, ownership, and continuous improvement.

What’s in it for You

You’ll be part of a team that encourages autonomy while providing onboarding and guidance to set you up for success. There’s an opportunity to work hands-on with modern AWS infrastructure, automated testing practices, and Python-based backend systems. The role allows you to grow your technical skills, influence internal processes, and be recognized for driving meaningful improvements in customer communication systems.

Your Responsibilities

• You’ll maintain and enhance backend messaging platforms, supporting both batch and real-time workflows.
• You’ll independently test and validate code using automated test suites and internal tools to ensure reliability and performance.
• You’ll implement improvements to internal systems and workflows, following configuration-driven standards.
• You’ll work across teams to troubleshoot, analyze incidents, and refine operational processes.
• You’ll onboard quickly, learn internal tools, and contribute to ongoing system improvements with minimal supervision.

Skills and Qualifications

• Minimum 7+ years of backend development experience with Python, preferably including batch processing on AWS.
• Experience working with AWS services, with familiarity in Lambda, S3, SQS, DynamoDB, and batch processing pipelines.
• Strong problem-solving skills and ability to work independently in a fast-paced, dynamic environment.
• Hands-on experience with automated testing frameworks, APIs, and internal tooling.
• Ability to articulate technical problems and solutions, and work collaboratively across multiple teams.

Why Partner with Altis

If you’ve never worked with a staffing agency before, don’t worry, we make it easy. You’ll still engage directly with the client while we handle the logistics, provide guidance, and keep you informed every step of the way. We’ll represent your strengths, guide you through each stage of the process, and ensure the experience feels personal and transparent.

Thank you for considering this opportunity. Learn more about what it’s like to work with Altis: altisrecruitment.com/working-with-altis