Design and build a next-generation reliability platform for Affirm’s production systems as a Senior Software Engineer.
Posted by employer 2 months ago
First seen on Joblaze 2 months ago
Last verified on the company career page 17 hours ago
AI in the day-to-day
Practical use of LLMs or AI frameworks to enhance automation and guidance with guardrails and citations.
Requirements
- Experience
- 4+ years
- Education
- Bachelor's degree
Not disclosed in this posting: visa sponsorship.
Benefits
Joblaze summary
In this role, the Senior Software Engineer will focus on developing a reliability platform that enhances the performance and stability of Affirm's production systems. Key skills include expertise in backend technologies such as Python, Kotlin, and AWS, along with experience in deploying scalable systems and utilizing AI frameworks. This position is ideal for seasoned engineers who thrive in dynamic environments and possess strong leadership and communication abilities. Affirm's commitment to innovation and quality makes this a compelling opportunity for those looking to make a significant impact.
Joblaze insights
- Listed about 2 months ago — first seen on Joblaze August 5, 2026. Last confirmed on Affirm's careers page October 7, 2026.
- This exact title is also open at 1 other location at Affirm: Remote US.
- Starts above 37% of 38 comparable senior backend roles in Canada that list Python we track (median $107,361 across 13 companies). See Python salary trends
- Python appears in 51.3% of 78 comparable senior backend roles in Canada; React appears in 6.4% of 78 comparable senior backend roles in Canada.
Quick facts
- Is the Senior Software Engineer, Backend (Reliability Platform) role remote?
- Yes — Affirm lists this as a fully remote position.
- What's the salary range?
- Affirm lists CAD 153,000–CAD 213,000 for this role.
- How much experience is required?
- At least 4 years of relevant experience for this Senior Software Engineer, Backend (Reliability Platform) role.
- What's the tech stack?
- Joblaze extracted these technologies from the posting: AWS, Kotlin, Kubernetes, MySQL, Python, React.
- What seniority level is this role?
- Affirm targets senior candidates for this position.
- Is this full-time or contract?
- Full-time for this Senior Software Engineer, Backend (Reliability Platform) role at Affirm.
From the original posting
At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most.
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.
We’re looking for a Software Engineer to design and build a next-generation reliability platform for Affirm’s production systems. You’ll blend traditional distributed systems engineering with AI-assisted development to give teams a single place to understand, debug, and improve the health of their services.
This is a highly creative, hands-on role for someone who loves “vibe coding” — rapidly iterating, shipping, and refining with strong intuition— while still holding a very high bar for reliability, quality, and maintainability.
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 a total of 4+ years of experience as a software engineer.
· You are experienced in designing, developing and launching backend systems at scale technologies like Python, Kotlin, AWS, MySQL, and Kubernetes.
· You have experience shipping web apps using declarative UI frameworks like React or Vue.
· Practical use of LLMs or AI frameworks to enhance automation and guidance with guardrails and citations
· 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.
This remote role is open only to candidates residing in Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island, or Saskatchewan.
Base Pay Grade - N
Equity Grade - 6
#LI-Remote
Remote-first with flexibility built in
Affirm is proud to be a remote-first company. Most roles can be done from almost anywhere within the country of employment. Some positions may occasionally require in-person work at an Affirm office, and a few are office-based due to the nature of the work. All new hires will be invited to attend an in-person onboarding experience.
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Standard company text repeated across Affirm's postings is omitted here.