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Affirm logoA
AffirmInfrastructure Platform EngRemote

Senior Software Engineer, Backend (Reliability Platform)

Remote USFull-timeSenior$195,000 – $255,000
Posted Aug 12, 2026Deadline: Nov 21, 2026
Job SnapshotActively hiring
LocationRemote US
Job typeFull-time
Salary$195,000 – $255,000
DeadlineNov 21, 2026

Finjobsly Role Intelligence

Experience level
Senior
Work style
Remote
Visa sponsorship
Not specified
Salary
$195,000 – $255,000
Key skills
PythonMySQLRESTAWSKubernetesReactVueProduct Management

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Finjobsly Intelligence— Generated from the employer's job description

What you'll own

You will own the design, delivery, and quarterly goals for a next‑generation reliability platform, including metrics, on‑call support, and code‑review standards.

What they're looking for

4+ years of backend engineering experience with Python, Kotlin, AWS, MySQL, Kubernetes (and optionally React/Vue), plus practical use of LLM/AI for automation.

Why this role matters

The platform centralizes health monitoring and debugging for all production services, directly impacting service reliability and customer experience at Affirm.

Best suited to

A creative, hands‑on engineer who thrives on rapid iteration, enjoys mentoring, communicates well across teams, and takes ownership of both technical delivery and team growth.

Fintech requirements

Visa sponsorship: No
Work arrangement: remote

About this role

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.

 

Base Pay Grade - N
Equity Grade - 9


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.)


USA base pay range (CA, WA, NY, NJ, CT) per year: $195,000 - $255,000 USD. 
USA base pay range (all other U.S. states) per year: $173,000 - $233,000 USD. 


#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.

Benefits designed for you
Our benefits reflect our commitment to care, transparency, and flexibility. Here are a few highlights:

  • Health coverage at no cost: We cover 100% of premiums for employees and their dependents.
  • Spending stipends: Monthly stipends support your tech setup, and the ability to choose health and wellness options that are right for you.
  • Time off to recharge: Flexible time off and generous holiday calendars help you rest when you need to.
  • Own a piece of what you build: Our employee stock purchase plan (ESPP) lets you buy Affirm stock at a discount.

We’re committed to providing an inclusive interview process, including accommodations for candidates with disabilities. If you need support, we’re happy to help.

For positions based in San Francisco or Los Angeles: Affirm considers qualified applicants with arrest and conviction records, as required by law.

By clicking "Submit Application," you acknowledge that you have read Affirm's Global Candidate Privacy Notice and consent to the use of your personal information as described.

More about this role

About company

Affirm logoA

Affirm

See website for more.

Full employer profile →Company website ↗

Required skills

PythonMySQLRESTAWSKubernetesReactVueProduct Management

Explore more

More Software Engineering Jobs→More jobs at Affirm→Python jobs →MySQL jobs →Salary benchmarks for this role →Browse all fintech jobs →

Affirm

Senior Software Engineer, Backend (Reliability Platform)

Remote US$195,000 – $255,000

Company insights

64

Happiness score

64/100

Based on 17 verified employee signals

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AI Generated Insights