Senior Software Engineer, Backend (Authentication Experience)
Affirm · Remote Canada
Posted 21 days ago · $153,000 - $213,000
or apply directly on Affirm's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 21 days Affirm's roles stay open a median of 45 days
- Reposted
- No
- Salary listed
- Yes 69% of Affirm's roles list one
- Ghost-job risk at Affirm
- low 0 stale, 5 reposted of 205 open
- Hiring momentum
- 283 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-09-17
Measured from postings appearing on and disappearing from Affirm's own greenhouse board since 2026-08-03. Full hiring picture for Affirm.
About this role
As a Senior Software Engineer in the Backend Authentication Experience team at Affirm, you will be responsible for building backend orchestration layers that support customer authentication and fraud prevention. Your role involves leading engineers, collaborating with product management and design, and ensuring the delivery of high-availability systems. You will also focus on fostering a culture of quality and ownership within your team while developing talent through feedback and guidance.
- benefits
- 2/5
- freshness
- 4/5
- career value
- 4/5
- role clarity
- 4/5
- pay transparency
- 5/5
Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Affirm as an employer.
What you need
- 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin
- Experience developing highly available distributed systems using technologies like AWS, MySQL and Kubernetes
- Experience working close to the web and mobile layers, with an understanding of frontend design patterns such as fraud prevention and backend-for-frontend
- Experience defining a technical plan for the delivery of a significant feature or system component
- Proficient at making significant changes in a large code base
- Strong verbal and written communication skills for effective collaboration
What you get
- 100% subsidized medical coverage, dental and vision for you and your dependents
- Monthly stipends for health, wellness and tech spending
- Competitive vacation and holiday schedules
- Employee stock purchase plan enabling you to buy shares of Affirm at a discount
Worth weighing
- Remote role limited to candidates residing in specific provinces in Canada
- No specific mention of the tech stack beyond Python, Kotlin, AWS, MySQL, and Kubernetes
- Base pay range provided but no specifics on equity or other compensation details
Summarised from Affirm's posting. Read the full original.
Listed by Affirm on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.
More roles at Affirm
- Staff Software Engineer, Mobile (App Infrastructure)Remote US
- Underwriting/Credit Model Risk Senior Manager - Machine LearningRemote US
- Underwriting/Credit Model Risk Senior Manager - Machine LearningRemote Canada
- Staff Software Engineer, Mobile (App Infrastructure)Remote Canada
- IT Support Administrator INew York, New York, United States
- Vice President, People Business Partner & Employee RelationsRemote US
- Security Risk Management Specialist IIRemote US
- GTM Strategy & Operations LeadRemote US