Joblaze summary

In this role, the Senior Software Engineer will lead a team in delivering quarterly goals while navigating complex problems and ensuring team support throughout the development process. Key skills include expertise in backend systems using Python or Kotlin, along with experience in distributed systems leveraging AWS, MySQL, and Kubernetes. This position is ideal for someone with over four years of experience who is comfortable making significant changes in large codebases and fostering a culture of quality and ownership. Affirm's Consumer Engineering team emphasizes collaboration with product and design to create a transparent user experience.

Joblaze insights

Listed today — first seen on Joblaze November 11, 2026. Last confirmed on Affirm's careers page November 11, 2026.
This exact title is also open at 1 other location at Affirm: Canada.
Salary band is in line with the typical range for Backend roles (median ~$180,000).
Starts above 43% of 162 comparable senior backend roles in United States that list Python we track (median $180,000 across 66 companies). See Python salary trends
Python appears in 40.3% of 529 comparable senior backend roles in United States; MySQL appears in 5.1% of 529 comparable senior backend roles in United States.

Quick facts

Is the Senior Software Engineer, Backend (Consumer) role remote?: Yes — Affirm lists this as a fully remote position.
What's the salary range?: Affirm lists $173,000–$255,000 for this role.
How much experience is required?: At least 4 years of relevant experience for this Senior Software Engineer, Backend (Consumer) role.
What's the tech stack?: Joblaze extracted these technologies from the posting: AWS, Kotlin, Kubernetes, MySQL, Python.
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 (Consumer) 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.

Consumer Engineering builds the Affirm experience millions of people use to pay over time, honestly and without hidden fees. We own the Affirm app, web checkout, and the account tools people use to manage purchases, payments, and savings. Our engineers work closely with product and design to ship fast, test often, and make every interaction simple and transparent.

You will be matched with a role on Consumer Engineering after completing the interview evaluation process. Your recruiter will work closely with you throughout the process to understand your interests and experience to find the strongest role fit.

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 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.

Base Pay Grade - N

USA Pacific base pay range (CA, WA, NY, NJ, CT): $195,000 - $255,000

USA Sapphire base pay range (all other U.S. states): $173,000 - $233,000

#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.

Senior Software Engineer, Backend (Consumer)

What you’ll do

What we look for

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