Senior Software Engineer, Backend (Batch Infrastructure)
- Salary
- $195,000 - $255,000
- Level
- Senior
- Work type
- Remote · US only
Not stated in the posting: visa.
Open. First seen 20 September 2026.
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 vision for the Batch Infra team @ Affirm team is to provide reliable, scalable, self-serve and Affirm-optimized compute solution to enable ML, Product, and Financial Engineering success. Our team is responsible for building and maintaining compute platform that serves as a backbone for processing various Business critical batch workloads at Affirm through a wide suite of scheduled and on-demand compute solutions built on the cloud. Affirm is growing rapidly and so is the need for reliable and high availability frameworks.
If solving infrastructure challenges at scale excites you, come join us!
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.
- Experience building and managing Workflow Orchestration frameworks like Airflow, Flyte, Prefect, Temporal, Luigi, etc.
- Experience with or working knowledge for efficiently scaling frameworks like Spark/Flink for extremely large scale datasets on 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
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.
Affirm's standard text
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.
Affirm's standard text
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.
What this role asks for
Particular to this role
Flink
Rare in Affirm's other 167 open postings.
Standard for backend roles
AWS · Kubernetes
Common in backend postings at any company.
In most of Affirm's ads
Python
Named in most of its open postings, whatever the role.
83% of this description is written for the role. The rest is Affirm's standard text, folded away below.
Read against Affirm's other open postings on this site.
The team: Infrastructure Platform Eng HIRES STEADILY
This role is one of 29 open in Infrastructure Platform Eng. 10 were posted in the last 30 days and the oldest in May: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Python (24 of 29), AWS (21 of 29), Kotlin (19 of 29), Kubernetes (18 of 29), MySQL (14 of 29), Spark (9 of 29), SQL (9 of 29)
OTHER ROLES ON THIS TEAM
- Senior Sales Engineer posted Oct 15
- Senior Sales Engineer posted Oct 15
- Senior Technical Account Manager (Strategic Alliances) posted Oct 14
- Senior Software Engineer, Backend (Lakehouse Infra) posted Oct 13
- Senior Software Engineer, Backend (Lakehouse Infra) posted Oct 13
- Software Engineer II, Backend (Online Storage) posted Oct 8
- Software Engineer II, Backend (Streaming) posted Sep 30
- Software Engineer II, Backend (Streaming) posted Sep 30
- Senior Software Engineer, backend (Online Storage) posted Sep 30
- Senior Software Engineer, Backend (Online Storage) posted Sep 30
- Senior Sales Engineer posted Sep 9
- Manager, Software Engineering (Infra Foundations) posted Aug 21
- Lead, Technical Account Management (SMB Merchants) posted Aug 13
- Lead, Technical Account Management (SMB Merchants) posted Aug 13
- Staff Software Engineer, Backend (Online Storage) posted Aug 10
- Staff Software Engineer, Backend (Online Storage) posted Aug 10
- Senior Software Engineer, Backend (Batch Infrastructure) posted Aug 5
- Senior Software Engineer, Backend (Reliability Platform) posted Aug 4
- Senior Software Engineer, Backend (Reliability Platform) posted Aug 4
- Staff Software Engineer, Backend (Cost Engineering) posted Jul 30
- Senior Software Engineer posted Jul 10
- Senior Software Engineer posted Jul 10
- Software Engineer II, Backend (Test Infra) posted Jul 10
- Software Engineer II, Backend (Test Infra) posted Jul 10
- Staff Software Engineer (Continuous Integration) posted May 27
- Staff Software Engineer (Continuous Integration) posted May 27
- Staff Software Engineer, Backend (Capacity Modeling) posted May 7
- Staff Software Engineer, Backend (Capacity Modeling) posted May 7
From the team and dates on Affirm's own job board.
See Software Engineer salaries in Remote →
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