Software Engineer II, Backend (Python, AI)

TL;DR

Software Engineer II, Backend (Python/AI): Designing and building a next-generation reliability platform for production systems with an accent on AI-assisted development and automated triage. Focus on creating AI agents for root-cause exploration and developer-facing APIs to improve system health visibility.

Location: Remote (Canada)

Salary: $123,000 - $183,000 CAD

Company

Affirm is reinventing credit to make it more honest and friendly, providing buy now and pay later flexibility without hidden fees.

What you will do

• Build a centralized reliability command center for unified system health and risk visibility across services.
• Create AI agents to assist with incident triage, root-cause exploration, and log/trace summarization.
• Develop developer-facing features and APIs for efficient data exploration and debugging.
• Utilize AI-assisted development tools like Cursor and Claude to prototype and ship high-quality code.
• Own the entire project lifecycle from requirements and architecture to implementation and rollout.
• Collaborate with product, infra, data, and SRE teams to translate pain points into technical solutions.

Requirements

• Must be based in Canada.
• Strong proficiency in Python with experience in data-intensive applications and robust APIs.
• Hands-on experience with AI-assisted development tools (e.g., Cursor, Claude, Copilot).
• Practical experience using LLMs or AI frameworks to enhance automation with guardrails.
• Bachelor’s degree in a related field or equivalent practical experience.

Culture & Benefits

• 100% subsidized medical, dental, and vision coverage for employees and their dependents.
• Generous flexible spending wallets for technology, food, lifestyle, and family forming expenses.
• Competitive vacation and holiday schedules for rest and recharge.
• Employee stock purchase plan (ESPP) to buy company shares at a discount.
• Remote-first culture with flexibility to work almost anywhere within the country of employment.