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Software Engineer II, Fullstack (International)

Join Affirm as a Software Engineer II to build and improve financial products for millions in international markets.

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

Posted by employer 1 day ago

First seen on Joblaze 1 day ago

Last verified on the company career page 1 day ago

Skills & Technologies

What you'll build

  • break down larger projects into individual tasks
  • support product development lifecycle
  • create and monitor metrics
  • engage in growth and development activities

Must have

  • 1.5+ years of experience as a software engineer
  • experience shipping web apps using React or Vue
  • experience designing and launching APIs using Python or Kotlin
  • ability to write clear and well-tested code
  • strong verbal and written communication skills

AI in the day-to-day

constantly looking for ways to get AI to increase productivity on a daily basis

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, the Software Engineer II will engage in full-stack development, contributing to the design and implementation of web applications and APIs that enhance Affirm's financial products for international markets. Proficiency in frameworks like React or Vue, along with experience in languages such as Python or Kotlin, is essential for success. This position is ideal for engineers with at least 1.5 years of experience who are eager to take ownership of their work and collaborate effectively within a global team. The International Accelerator Engineering team operates in an agile environment, focusing on delivering impactful solutions at scale.

Joblaze insights

  • Listed yesterday — first seen on Joblaze November 14, 2026. Last confirmed on Affirm's careers page November 14, 2026.
  • This exact title is also open at 2 other locations at Affirm: Spain, Remote UK.
  • Starts above 1% of 111 comparable mid fullstack roles we track (median $125,000 across 53 companies).

Quick facts

Is the Software Engineer II, Fullstack (International) 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 (International) role.
What's the tech stack?
Joblaze extracted these technologies from the posting: Kotlin, Python, React, 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 (International) 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 International Accelerator Engineering team is growing, and we're looking for a Software Engineer to join us! 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 shaping how Affirm builds Direct-to-Consumer products for Canada, the UK, and future international markets. We build and own various products used by our consumers, like the Affirm App and other Direct to Consumer products across international markets. We are here to make sure we reach and provide useful tools to our users so they can experience honest financial products at their fullest.

Our work is agile and fast-paced, shipping new code to production for millions to use across geographies and rigorously measuring the impact it has on them. This role rewards curiosity, ownership, ability to zoom in and out, switch contexts often, also in an open contribution model, 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, while constantly looking for ways to get AI to increase productivity on a daily basis. 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 shipping web apps using declarative UI frameworks like React or Vue.
· You have experience designing, developing and launching APIs at scale using languages like Python or Kotlin.
· 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.
· You are comfortable navigating a large code base, debugging others' code, and providing feedback to other engineers through code reviews.
· 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

Base Pay Grade – L

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

Reward equity: $0 - $112,500

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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