Senior Software Engineer (Fraud)

308k - 428k PLN308 000 - 428 000 PLN/ rok./ rok.UoPUmowa o pracę (brutto)

SeniorZdalnie·WarszawaFull-time·Umowa o pracę

#467205·Dodano wczoraj·0

Źródło: justjoin.it

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Tech Stack / Keywords

Python SQL Kotlin AWS

Podsumowanie oferty

Build and extend Affirm’s Fraud Decisioning System for international markets. Design real-time fraud decisioning services and APIs and develop the tools that help launch fraud protection in new countries, using Python or Kotlin.

Wymagania

5+ years of experience building backend systems at scale using Python or Kotlin.
Experience with distributed systems and infrastructure using AWS, MySQL or PostgreSQL, and Kubernetes.
Strong system design skills and a track record of delivering maintainable, extensible services.
Fluency with AI-driven engineering, including directing and orchestrating AI tools such as Claude Code, critically evaluating generated code, and owning its correctness, quality, and security.
Proficiency in SQL and experience working in data-rich environments.
Familiarity with CI/CD practices and safe production deployments.
Strong written and verbal communication skills, especially in distributed teams.
A proactive, ownership-driven mindset focused on learning and team success.

Nice to have:

Experience with Snowflake, dbt, Airflow, or Chronosphere.
Background in fraud prevention, risk systems, or real-time decisioning.
Experience building for multiple markets or regions, including internationalization or localization.
Experience in fintech or another highly regulated environment, with an understanding of risk, compliance, and operational constraints.

Obowiązki

Own and deliver quarterly team goals, guide engineers through ambiguous problems, and support the team throughout delivery.
Design and implement real-time fraud decisioning services and APIs in Python or Kotlin for markets beyond the US.
Build and evolve the platform and tooling for launching fraud decisioning in new countries, making market setup repeatable and low-friction.
Integrate region-specific fraud and risk vendors, operationalize machine learning and AI signals for real-time decisioning, and use modern AI tooling in engineering work.
Collaborate with Product, Machine Learning, Analytics, and Fraud Strategy across the product development lifecycle; explain technical constraints and weigh risks and trade-offs.
Support the operation and availability of team systems by creating and monitoring metrics, escalating when needed, and contributing to keep-the-lights-on and on-call efforts.
Improve code review and design standards, mentor teammates, and lead by example.

Benefity

Monthly stipends for health, wellness, and technology spending.
Medical coverage, dental coverage, and vision coverage for employees and their dependents, with 100% of the cost subsidized.
Flexible Spending Wallets for technology, food, and lifestyle.
Away Days: wellness days off work to recharge.
Learning and Development programs.
Parental benefits.
Employee Resource and Community Groups.
Employees may be eligible for equity rewards from Affirm Holdings, Inc.

Opieka zdrowotna

Udziały pracownicze

Inne informacje

The role is remote in Poland; the offer states that most roles can be located anywhere in Poland.

Affirm

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