Senior Software Engineer, Backend (Infrastructure)
Affirm
Senior Software Engineer, Backend (Infrastructure) at Affirm is a full time role based in Remote · Canada, Canada (remote). The listing states pay of $153k–$213k. It was published on 22 April 2026 and was open at last check.
| Role | Senior Software Engineer, Backend (Infrastructure) |
|---|---|
| Company | Affirm |
| Location | Remote · Canada, Canada (remote) |
| Employment type | Full Time |
| Pay (as listed) | $153k–$213k |
| Published | 22 April 2026 |
| Status | Open at last check |
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 Engineering team builds systems that power Affirm’s mission. We take pride in our craft, building reliable, performant, and scalable solutions that touch every part of the business. Whether we’re enabling new ways to pay, ensuring our platforms can scale to the most demanding levels in the industry, or developing seamless servicing experiences, our focus is on solving complex problems through exceptional engineering.
The Trust Infra team elevates the security posture of our infrastructure and services by embedding security in everything from provisioning to deployment, improving developer experience through automation, and building guardrails that enable safe, rapid delivery. Artifacts owned by this team include our secrets management system, authentication and authorization, cryptography, certificate workloads, and other core security components within our Kubernetes and cloud infrastructure.
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” & 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.
- You have deep expertise of Kubernetes resource management, Helm charts, and operator patterns, centered around security workloads.
- 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.
Pay Grade - N
Equity Grade - CAN 6
Employees new to Affirm typically come in at the start of the pay range. Affirm focuses on providing a simple and transparent pay structure which is based on a variety of factors, including location, experience and job-related skills.
Base pay is part of a total compensation package that may include equity rewards, monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents.)
CAN base pay range per year: $153,000 - $213,000
#LI-Remote
Affirm is proud to be a remote-first company! The majority of our roles are remote and you can work almost anywhere within the country of employment. Affirmers in proximal roles have the flexibility to work remotely, but will occasionally be required to work out of their assigned Affirm office. A limited number of roles remain office-based due to the nature of their job responsibilities.
We’re extremely proud to offer competitive benefits that are anchored to our core value of people come first. Some key highlights of our benefits package include:
- Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents
- Flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses
- Time off - competitive vacation and holiday schedules allowing you to take time off to rest and recharge
- ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount
We believe It’s On Us to provide an inclusive interview experience for all, including people with disabilities. We are happy to provide reasonable accommodations to candidates in need of individualized support during the hiring process.
[For U.S. positions that could be performed in Los Angeles or San Francisco] Pursuant to the San Francisco Fair Chance Ordinance and Los Angeles Fair Chance Initiative for Hiring Ordinance, Affirm will consider for employment qualified applicants with arrest and conviction records.
By clicking "Submit Application," you acknowledge that you have read Affirm's Global Candidate Privacy Notice and hereby freely and unambiguously give informed consent to the collection, processing, use, and storage of your personal information as described therein.
Create your free OnJob profile to apply — we'll take you to Affirm's application after sign-up. · Posted 22 Apr 2026.
Senior Software Engineer, Backend (Infrastructure) at Affirm — questions answered
What does the Senior Software Engineer, Backend (Infrastructure) role at Affirm pay?
The Senior Software Engineer, Backend (Infrastructure) at Affirm listing states pay of $153k–$213k for the Remote · Canada, Canada (remote) position. That figure is taken directly from the employer's own posting as published, not estimated or averaged from other roles.
Is the Senior Software Engineer, Backend (Infrastructure) role at Affirm remote?
Yes — Affirm advertises this Senior Software Engineer, Backend (Infrastructure) role as remote, tied to Remote · Canada, Canada, and it is listed as full time work. Remote terms come from the employer's own posting, so confirm the expected working hours, timezone and any on-site days with Affirm before you apply.
Is the Senior Software Engineer, Backend (Infrastructure) role at Affirm still open?
The Senior Software Engineer, Backend (Infrastructure) posting at Affirm was open at OnJob's last check of the employer's careers page, having been published on 22 April 2026. OnJob re-checks source listings on each build and marks a role closed once it disappears, but listings can close without notice, so the employer's own page is the final word.
How do you apply for the Senior Software Engineer, Backend (Infrastructure) role at Affirm?
Apply to the Senior Software Engineer, Backend (Infrastructure) at Affirm role through OnJob with a free profile: OnJob scores your fit against the listing, shows the skills lowering that score, and submits an ATS-ready profile to Affirm's own application page. Creating a profile is free and needs no card.
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