Senior Staff Software Engineer, Backend (Identity Engineering)

Affirm; Philadelphia (Philadelphia County); Remote; USD 232,000 - 282,000; Full time

Job summary

Join a forward-thinking company as a Senior Staff Software Engineer in Identity Engineering, where you will play a pivotal role in shaping the future of financial products. This position offers a unique opportunity to lead multi-year projects, architect innovative solutions, and mentor a team of engineers. You will collaborate with cross-functional teams to ensure high availability and low latency in services that impact millions of consumers. With a commitment to transparency and inclusivity, the company provides a competitive benefits package and a remote-first work environment, allowing you to thrive while making a significant impact in the industry.

Benefits

100% subsidized medical coverage

Dental and vision coverage

Flexible Spending Wallets

Competitive vacation and holiday schedules

Employee stock purchase plan (ESPP)

Qualifications

• Proven experience in delivering multi-year, high-impact projects.
• Strong system design and software engineering skills required.

Responsibilities

• Define and implement multi-year technical strategies.
• Architect and build next-generation Identity services.

Skills

System Design

Software Engineering

Cross-Functional Collaboration

Communication Skills

Distributed Systems

Kotlin Development

Education

Bachelor's Degree in a Related Field

Equivalent Practical Experience

Job description

Senior Staff Software Engineer, Backend (Identity Engineering)

Remote US

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 looking for a Senior Staff Software Engineer to take on a key role in Identity Engineering to define the technical direction and foster innovation across the engineering organization. You’ll work closely with engineering leaders, cross-functional teams, and stakeholders to create solutions that are scalable, reliable, and high-performing. You'll help shape best practices, guide architectural choices, and drive the successful delivery of critical initiatives. This role requires a high level of technical ability, leadership skills, strong cross-functional communication, and a creative mindset.

Identity Engineering owns the systems responsible for onboarding all consumers and managing their authentication and verification journeys across Affirm’s product surfaces. In this role, you will need to gain a deep understanding of the business, product and engineering context, and utilize that context to define the requirements, vision, and roadmap of the Identity area. You will lead the team to influence and align with business stakeholders and engineering partners, and deliver the vision over multiple years in incremental milestones.

What You'll Do

• Define the multi-year, multi-team technical strategy and deliver it through direct implementation and broad technical leadership.
• Architect and build the next-generation Identity services, ensuring high availability and low latency to support Affirm’s financial products.
• Influence and align with cross-functional leaders across the organization, guided by deep domain context and engineering expertise.
• Mentor engineers and advocate for engineering excellence, influencing best practices across teams.
• Navigate ambiguity, bringing clarity to complex engineering, product, and business discussions.

What We Look For

• Proven experience delivering multi-year, high-impact projects with broad cross-functional collaboration.
• Strong system design and software engineering skills, with the ability to synthesize complex technical and business requirements.
• A strong understanding of distributed systems and how architectural decisions affect performance and maintainability.
• Excellent written and verbal communication, especially in asynchronous formats (RFCs, design docs, project plans).
• Passion for working with cross-functional teams including Product, Analytics, and Business teams.
• Kotlin development experience is a plus.
• Excited about Affirm’s mission to deliver honest financial products.
• This position requires either equivalent practical experience or a Bachelor’s degree in a related field.

Base Pay Grade - R

Equity Grade - 15

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: $260,000 - $310,000

USA base pay range (all other U.S. states) per year: $232,000 - $282,000

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.