Software Engineer II, Backend (Test Infra)

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.

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 are seeking a highly motivated Software Engineer II with strong experience in test automation to contribute to Developer Productivity, with a focus on Test Platform Engineering. The Test Infra team empowers developers to efficiently write, run, analyze, and maintain automated tests. The team’s goals include expanding testing capabilities; building and maintaining testing frameworks; optimizing test orchestration; improving post-run reporting; ensuring the performance and reliability of CI pipelines; introducing AI-driven solutions to enhance developer productivity; and promoting best practices for test automation across the organization.

As a Software Engineer II in Test Platform Engineering, you will play a key role in building and evolving the core testing infrastructure that supports engineering productivity across the organization. Your work will have a direct impact on how hundreds of engineers develop, validate, and deliver high-quality software. You will focus on designing and maintaining scalable, reliable, and developer-friendly frontend and backend test automation solutions, as well as CI pipelines, enabling teams to deliver changes with confidence and receive fast, actionable feedback. You will collaborate closely with the Engineering Manager and the team in Europe to continuously improve quality.
Affirm is growing fast and we want you to enable us to scale our products to 10x and beyond through building world-class systems that enable Affirm in its mission to provide honest financial products that improve lives.

What You'll Do:

• Own, improve, and maintain integration and E2E test automation frameworks, along with their associated CI pipelines.

• Design and implement technical solutions to optimize test execution time and enhance test stability.

• Write technical specifications and ADRs, contribute to technical solution design, and collaborate with engineers across the company.

• Support engineering teams by assisting with triage requests and sharing best practices for quality assurance and test automation.

• Contribute to the evolution of the company’s overall test strategy.

• With the support of your team’s tech lead and manager, you will break down larger projects into individual tasks, deliver them in multiple phases, and collaborate with others to ensure timely delivery of your work.

• This role includes participation in an on-call rotation

What We Look For:

• An East Coast location to enable smoother collaboration with European colleagues.

• 3+ years of experience in test automation.

• Proficient in both TypeScript and Python.

• Hands-on experience with Playwright and Pytest.

• Experience in building and optimizing CI pipelines.

• Experience with Docker and AWS.

• Strong background in quality assurance, test design, and in-depth knowledge of testing techniques and methodologies.

• Excellent communication and collaboration skills, both verbal and written, with proficiency in asynchronous communication methods such as tech specs, RFCs, wikis, and project plans.

• Experience in building or enhancing test automation frameworks and infrastructure is highly desirable.

• Mobile, infrastructure and performance test automation experience will be considered a significant advantage.

• Eager to grow and continuously learn new skills.

• You have mastered taking a simple problem or business scenario into a solution that interacts with multiple software components, and executing on it by writing clear, easily understood, well tested and extensible code.

• Your experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders

• This position requires either equivalent practical experience or a Bachelor’s degree in a related field.

Base Pay Grade - L

Equity Grade - 6

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: 165,000 - 225,000

USA base pay range (all other U.S. states) per year: 146,000 - 206,000

 #LI-Remote

Affirm is proud to be a remote-first company! The majority of our roles are remote and you can work almost anywhere within the country of employment. Affirmers in proximal roles have the flexibility to work remotely, but will occasionally be required to work out of their assigned Affirm office. A limited number of roles remain office-based due to the nature of their job responsibilities.

We’re extremely proud to offer competitive benefits that are anchored to our core value of people come first. Some key highlights of our benefits package include: 

• Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents 
• Flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses
• Time off - competitive vacation and holiday schedules allowing you to take time off to rest and recharge
• ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount

We believe It’s On Us to provide an inclusive interview experience for all, including people with disabilities. We are happy to provide reasonable accommodations to candidates in need of individualized support during the hiring process.

[For U.S. positions that could be performed in Los Angeles or San Francisco] Pursuant to the San Francisco Fair Chance Ordinance and Los Angeles Fair Chance Initiative for Hiring Ordinance, Affirm will consider for employment qualified applicants with arrest and conviction records.

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