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Software Engineer II, Fullstack (Repayment UX)

Join Affirm as a Full-Stack Software Engineer to enhance repayment experiences for millions of users in a remote-first team.

Location
Remote Poland
Compensation
PLN 259k–PLN 379k/yr
Level
mid
Type
full time · Remote

Posted by employer 4 days ago

First seen on Joblaze 3 days ago

Last verified on the company career page 11 hours ago

Skills & Technologies

What you'll build

  • Break down larger projects into individual tasks
  • Collaborate with product management and design
  • Create and monitor metrics for team artifacts
  • Engage in growth and development activities

Must have

  • 1.5+ years of experience as a software engineer
  • Experience designing and developing backend systems
  • Proficient in Python or Kotlin
  • Experience shipping web apps using React or Vue
  • Strong verbal and written communication skills

Nice to have

  • Experience developing mobile applications using React Native

Requirements

Experience
1+ years

Not disclosed in this posting: visa sponsorship.

Benefits

Equity/Stock Options Flexible Time Off Learning and Development Programs Health Insurance Mental Well-being Support Parental Leave

Joblaze summary

In this role, a Full-Stack Software Engineer will focus on developing and enhancing user journeys that facilitate loan repayments, directly impacting the financial experiences of millions. Proficiency in backend systems using Python or Kotlin, along with experience in web applications using frameworks like React or Vue, is essential. This position is ideal for engineers with at least 1.5 years of experience who are eager to take ownership of their projects and collaborate effectively within a global team. The Repayment UX Engineering team operates in an agile environment, emphasizing a culture of curiosity and continuous learning.

Joblaze insights

  • Listed 3 days ago — first seen on Joblaze October 28, 2026. Last confirmed on Affirm's careers page October 31, 2026.
  • This exact title is also open at 1 other location at Affirm: Remote Spain.
  • Starts above 2% of 115 comparable mid fullstack roles we track (median $130,000 across 58 companies).

Quick facts

Is the Software Engineer II, Fullstack (Repayment UX) role remote?
Yes — Affirm lists this as a fully remote position.
What's the salary range?
Affirm lists PLN 259,000–PLN 379,000 for this role.
How much experience is required?
At least 1 year of relevant experience for this Software Engineer II, Fullstack (Repayment UX) role.
What's the tech stack?
Joblaze extracted these technologies from the posting: Kotlin, Python, React, React Native, Vue.
What seniority level is this role?
Affirm targets mid-level candidates for this position.
Is this full-time or contract?
Full-time for this Software Engineer II, Fullstack (Repayment UX) role at Affirm.

From the original posting

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 Repayment UX Engineering team is growing, and we're looking for a Full-Stack Software Engineer. We're a full-stack team located entirely in Europe within the same time zone, but culturally rooted in Silicon Valley. We directly improve the financial lives of over 20 million people. We build and own user journeys that enable them to pay back loans worth collectively over $40B each year. Our team exists to make these moments the most reliable and transparent in world-class consumer finance.

Our work is agile and fast-paced and we rigorously measure the impact it has on the behavior of our users. This role rewards curiosity, ownership, and a builder's mindset. You'll know exactly what your objectives are, you'll have what you need to hit them, and you'll choose your own path to get there. You'll learn quickly from experienced teammates and grow your craft on problems that matter at scale.

If you want to build something new and operate it at scale – come join us!

What You'll Do

  • 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.
  • 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 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 contribute to a sense of community on your team by engaging in growth and development activities such as participation in the interview process.

What We Look For

  • You have a total of 1.5+ years of experience as a software engineer.
  • You have experience designing, developing and launching backend systems and are proficient in one of Python or Kotlin.
  • You have experience shipping web apps using declarative UI frameworks like React or Vue
  • Experience developing and architecting mobile applications, preferably using declarative UI frameworks like React Native is a bonus.
  • You are comfortable navigating a large code base, debugging others' code, and providing feedback to other engineers through code reviews.
  • 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.
  • You have strong verbal and written communication skills that support effective collaboration with our global engineering team.

Total rewards

We believe the people building honest financial products at Affirm should share in its success. That's why our total rewards are designed to support your health, growth, financial well-being, and future.

In service of our mission, we reward employees through a combination of base pay, equity (from parent company), and comprehensive benefits.

Base Pay Grade

259,000 zł - 379,000 zł

Base pay ranges and placement within those ranges are determined based on several factors, including role, experience, and job-related skills.

In addition to base pay, all employees in this role are eligible to receive equity from the parent company each year. This means as Affirm’s parent company grows, employees have the opportunity to share in that growth financially.

Affirm Holdings, Inc. Equity Grade

Equity grade: 3 (awarded in US Dollars)

New hire equity: $24,000 - $36,000 USD

Annual Refresh: $7,500

Affirm also provides flexible spending wallets to all employees for technology and wellbeing related needs, which are reimbursable up to 1390 zł per month.

In addition to your compensation, our comprehensive benefits are designed to support you and the people who matter most. Benefits include:

  • Competitive paid time off, paid public holidays, and additional paid Away Days to rest and recharge.
  • Comprehensive private healthcare through Lux Med's Platinum package.
  • A MultiSport card to support your health and well-being.
  • Learning and development programs to help you grow professionally.
  • Family healthcare support through Maven and parental leave support through Parentaly.
  • Mental well-being support through Lyra, including up to 12 confidential counseling or coaching sessions each year for you and your household members.
  • Financial well-being support through Northstar, with unlimited access to Certified Financial Advisors and planning tools at no cost to you.
  • Employee Resource Groups (ERGs) that foster connection and inclusion.
  • Eligibility for creative tax benefits, subject to applicable law, role, 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.**

#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.

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.

Standard company text repeated across Affirm's postings is omitted here.

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