Senior Software Engineer, Backend (Card)

Affirm, Inc.; Polska; Hybrid; USD 83,000 - 115,000; Full time

Benefits offered by this job

Flexible Spending Wallets for tech, 
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Away Days - wellness days

Learning & Development programs

Parental benefits

Employee Resource & Community Groups

Creative tax benefits

Job summary

Affirm, Inc. is seeking a Senior Software Engineer, Backend (Card) to own and deliver backend platforms at scale. You will work across product and engineering teams, delivering high-quality systems with fast, reliable transaction processing and robust ledgering.

This remote Poland role offers a competitive base pay, equity, and benefits, with a strong focus on learning and growth, on-call readiness, and a supportive, ownership-minded culture.

Qualifications

• 4+ years of experience as a software engineer.
• Experience designing, developing and launching backend systems at scale with Python, Kotlin, AWS, MySQL, and Kubernetes.
• Experience shipping frontend applications.
• Ability to define a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design.
• Experience making significant changes in a large code base with safe tooling and practices.
• Demonstrated ownership of growth, feedback, and collaboration with team and stakeholders.
• Strong verbal and written communication for global engineering collaboration.

Responsibilities

• Own and deliver quarterly goals for your team, guiding engineers through ambiguity.
• Collaborate with product management, design & analytics across the lifecycle.
• Identify project, process, technology or business issues and lead in solving them.
• Support operations and availability of team artifacts, monitor metrics, and assist on-call efforts.
• Raise quality and ownership by improving code review and design standards.
• Mentor teammates and lead by example to develop talent.

Skills

Backend development

Frontend experience

Communication skills

Ownership / initiative

Team collaboration

Tools

Python

Kotlin

AWS

MySQL

Kubernetes

Job description

Senior Software Engineer, Backend (Card)

Remote Poland

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 reinventing credit cards in the most transparent way possible. We are working directly with card issuers to change how credit is used throughout the world, creating new types of cards that work for both their everyday lives and large purchases with extremely straightforward, flexible terms. You'll work across stacks and across the company, working both in just-in-time transaction processing that has to take place in milliseconds, along with our ledgering and reconciliation systems in post-transaction processing. This is some of the more difficult, exciting, experimental engineering work in affirm. Join us and our team in Spain and Poland to help us revolutionize payments!

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 front end applications
• 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.

Compensation & Benefits

Pay Grade - N

Equity Grade - 4

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 monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents). In addition, the employees may be eligible for equity rewards offered by affirm holdings, inc. (parent company).

POL base pay range per year: 308,000 zł - 428,000 zł

• Type of employment: Contract of Employment
• Flexible Spending Wallets for tech, food and lifestyle
• Away Days - wellness days to take off work and recharge
• Learning & Development programs
• Parental benefits
• Employee Resource & Community Groups
• This role is eligible for creative tax benefits, subject to applicable law and company policy

Location - Remote Poland

The majority of our roles can be located anywhere in Poland.

This job description is not a contractual document, and is not intended to have binding force.

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.