Senior Software Engineer, Backend; Platform
Job in
London, Ontario, K5Z, Canada
Listed on 2026-03-11
Listing for:
Affirm
Full Time
position Listed on 2026-03-11
Job specializations:
-
Software Development
Software Engineer, Backend Developer, Cloud Engineer - Software, Senior Developer
Job Description & How to Apply Below
Overview Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Growth Platform Engineering team builds core systems and tools that drive user acquisition, engagement, and lifecycle growth platform enables personalized communications, intelligent experimentation, and scalable services that help customers discover and adopt Affirm’s products.
What You’ll Do You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout delivery.
You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs.
You will proactively identify project, process, technology or business issues, advocate for them, and lead in solving them.
You will support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep the lights on” and on-call efforts.
You will foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for them beyond your team through your writing and tech talks.
You will help develop talent on your team by providing feedback and guidance, and leading by example.
What We Look For You have 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin.
You have a track record of developing highly available distributed systems using technologies like AWS, MySQL and Kubernetes.
Strong understanding of distributed systems, data modeling, and service-oriented architecture.
You have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design. You write high quality code that is easily understood and used by others.
You are proficient at making significant changes in a large code base, and have developed a suite of tools and practices that enable you and your team to do so safely.
Your experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders.
You have strong verbal and written communication skills that support effective collaboration with our global engineering team.
This position requires either equivalent practical experience or a Bachelor’s degree in a related field.
Location and Compensation
Location:
Remote Canada
Equity Grade: 6
Pay Grade: N
Base pay range per year: $150,000 - $200,000
Affirm focuses on a simple and transparent pay structure based on location, experience and job-related skills. Base pay may be part of a total compensation package that may include equity rewards and various benefits.
CAN base pay range is indicative; actual offers may vary.
Benefits Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents
Flexible Spending Wallets - stipends for Technology, Food, Lifestyle needs, and family forming expenses
Time off - vacation and holiday schedules to rest and recharge
ESPP - Employee stock purchase plan
Affirm is remote-first. Some roles may require occasional in-office work. A limited number of roles remain office-based due to job responsibilities.
We believe it’s On Us to provide an inclusive interview experience for all, including people with disabilities. Reasonable accommodations are available during the hiring process.
[U.S. positions that could be performed in Los Angeles or San Francisco] Affirm will consider qualified applicants with arrest and conviction records in line with applicable laws.
By clicking "Submit Application," you acknowledge that you have read Affirm's Global Candidate Privacy Notice and consent to the collection, processing, use, and storage of your personal information as described therein.
Seniority level Mid-Senior level
Employment type
Full-time
Job function Engineering and Information Technology
Apply BELOW
Position Requirements
10+ Years
work experience
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