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Affirm

Senior Software Engineer, Backend (Merchant & Partner Lifecycle)

Work from home

Remote role where the employee must remain based in a particular country.

United States only

Employer listed it 5 weeks ago · Added 2 days ago

Been open since 5 weeks ago, still being checked, but it has been live a while.

Salary

Not stated

Location

United States only

Work style

Async

Contract

Full-time

Experience

Senior

Category

Software

This employer didn't state pay. Jobs like this usually pay around $175k–$230k a year, a typical range taken from 595 senior-level software roles on Nomaders that do state pay. It's a guide, not an offer.

Remote flexibility

Work from home

This is a remote role, but the employee must be based in United States. It is work from home rather than work from anywhere.

What the employer says

  • Source listing states candidate location: "Remote US"
  • Job description states: "based in San Francisco or Los Angeles"

What Nomaders makes of it

  • Payroll and tax are likely handled in that country only

The quotes above are the employer's own words; the reading is ours. Always check the original listing and employment terms before working from another country.

About the 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.

The Merchant & Partner Lifecycle (M&PL) team is at the forefront of Affirm’s architectural transformation. We are addressing critical architectural risks by consolidating merchant lifecycle orchestration into a newly cohesive domain.

You will act as a technical leader responsible for building out the brand new lifecycle-orchestrator service that’s at the heart of multiple connected systems. Your work will deliver immediate availability improvements through system simplification and isolation, and modernize older parts of the codebase.

What You'll Do

Design & expand the backbone of our platform to scale to hundreds of thousands of merchants from all around the world

Design and align the scope of work with other teams to deliver cross-team projects

Mentor other engineers to ensure their development & growth

Partner with Engineering Manager and Team Lead to drive and execute the long-term vision of the team

Execute technical strategy for broad or complex requirements with insightful and forward-looking approaches that go beyond the direct team and solve large open-ended problems

Utilize agentic development tools like Claude Code to automate parts of the development process

Improve engineering standards, tooling, and processes throughout the organization

What We Look For

5+ years of experience as a backend software engineer

A strong understanding of Domain-Driven Design, distributed systems, and how architectural decisions affect performance and maintainability

Proficiency with data models, API design (http and RPC), state machines, event-driven architecture, and database design

Excellent communication skills, both written and verbal. Must be proficient in asynchronous communication–written tech specs, ADRs, project plans, etc.

Experience designing, developing, and launching backend systems (our stack: AWS, gRPC, Snowflake, Kotlin, Python, MySQL, Kubernetes). Java and Kotlin experience are especially helpful.

Prior experience with monitoring and alerting systems ( sentry.io , rollbar, chronosphere, kibana)

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

USA base pay range (all other U.S. states) per year: 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.

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

Requirements

The employer hasn't listed requirements separately, they're described in the role summary above and on the original listing.

Benefits

No benefits package published with this listing. Ask about it at first interview.

How to apply

  1. 1Check the flexibility label above, work from home, matches where you plan to live and work.
  2. 2Tailor your CV to the role at Affirm, mentioning your remote working experience and working hours (Async).
  3. 3Apply directly on the employer's careers page using the button below. Nomaders never handles your application.

Found 3d ago. Last checked 23 Sept. Always confirm the details on the original posting, salary and location can change after publication.

Listing sourced from Company boards.

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