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Senior Backend Software Engineer - Financial Platforms

Company:
Affirm
Location:
Clinton Township, OH, 43224
Posted:
December 08, 2025
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Description:

At Affirm, we are transforming credit into a more honest and friendly experience, offering consumers the flexibility to buy now and pay later without hidden fees or compounding interest. Join our dynamic Servicing International team, a key player in Affirm's global expansion, as we build the foundational platform to introduce our products to a new generation of international markets.

This role is pivotal in focusing on purchase protection, including disputes and refunds—an essential part of the user journey with significant investment to ensure trust and satisfaction among our new customers. Your collaboration with European engineering counterparts and engineers from our global Servicing Engineering organization will shape cohesive and scalable solutions. If you are passionate about creating top-tier user experiences and thrive in launching products in new regions, we invite you to be part of this journey with us.

What You'll Do:

Take ownership of quarterly goals for your team, leading engineers through ambiguity and ensuring robust support throughout the delivery process.

Collaborate closely with product management, design, and analytics during the product development lifecycle to articulate technical constraints and support informed decision-making.

Proactively identify and advocate for solutions to project, process, technology, or business challenges.

Maintain operations and availability of your team's artifacts by creating and monitoring relevant metrics, escalating issues as necessary, and contributing to support efforts.

Promote a culture of quality by establishing and enhancing code review and design standards, fostering pride and ownership within the team.

Nurture talent on your team through feedback and guidance, embodying leadership by example.

What We Look For:

4+ years of software engineering experience.

Expertise in designing, developing, and launching scalable backend systems using technologies such as Python, Kotlin, AWS, MySQL, and Kubernetes.

Experience with web app deployment using declarative UI frameworks like React or Vue.

Proven ability to define technical plans for significant features or components, ensuring elegant, simple, and extensible designs.

Skilled at implementing substantial changes within a large codebase, equipped with tools and practices ensuring safety and efficiency.

Demonstrated ownership of personal growth, actively seeking feedback from team members, managers, and stakeholders.

Strong verbal and written communication skills that facilitate effective collaboration with a global engineering team.

Compensation and Benefits:

Base Pay Grade - N

Equity Grade - Poland 4

Affirm offers a transparent pay structure reflecting location, experience, and job-related skills. Base pay is complemented by a holistic compensation package, including monthly stipends for health, wellness, and tech expenses, along with comprehensive benefits (100% subsidized medical coverage, dental and vision for you and your dependents), and potential equity rewards from Affirm Holdings, Inc.

Base pay range per year in Poland: 301,000 PLN - 401,000 PLN.

Additional benefits include:

Type of employment: Contract of Employment

Flexible Spending Wallets for tech, food, and lifestyle

Away Days - wellness days to recharge

Learning & Development programs

Parental benefits

Employee Resource & Community Groups

This role is also eligible for creative tax benefits, subject to applicable law and company policy.

Location: Remote within Poland. Most roles can be performed from anywhere in Poland.

This job description is not a contractual document and holds no binding force.

#LI-Remote

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