RemoteLeaf Logo
Log in Sign up

Senior Software Engineer, Back-end (Fraud)

2 hours, 4 minutes ago
Poland
Full-time
Senior
Software Engineer
Software Development
Apache Airflow AWS CI/CD dbt Kotlin Kubernetes Microservices MySQL PostgreSQL Python Snowflake SQL
Apply Now
Affirm

Affirm

Affirm offers a transparent buy now, pay later service founded in 2012 by Max Levchin. No late fees or surprises, just a responsible way to pay over time for your favorite brands.

Diversified Financial Services
1K-5K
Founded 2012
View All Jobs 68

Description

  • Own and deliver quarterly team goals while guiding engineers through ambiguous, open-ended problems.
  • Design and implement backend services and APIs in Python or Kotlin within a microservice and event-driven architecture.
  • Shape the team roadmap, contribute to technical design, and drive execution across multi-team projects.
  • Partner with the Engineering Manager and teammates to improve quality standards and engineering processes.
  • Collaborate with Fraud Ops, Compliance, Product, Machine Learning, and Analytics to build scalable fraud infrastructure and tooling.
  • Identify opportunities to improve reliability, efficiency, and architecture, and lead efforts to address them.
  • Maintain strong observability, respond to incidents, and participate in the on-call rotation.
  • Mentor teammates, provide feedback, and promote ownership, inclusion, and craftsmanship.

Requirements

  • 5+ years of experience building backend systems at scale using Python or Kotlin.
  • Experience with distributed systems and infrastructure using AWS, MySQL/PostgreSQL, and Kubernetes.
  • Strong system design skills and a track record of delivering maintainable, extensible services.
  • 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 with a focus on learning and team success.
  • Experience with Snowflake, dbt, Airflow, or Chronosphere is preferred.
  • Background in fraud prevention, risk systems, or post-transaction tooling is preferred.
  • Experience in fintech or other highly regulated environments with an understanding of risk, compliance, and operational constraints is preferred.
  • On-call rotation availability is required.

Benefits

  • Base pay range of 301,000 zł to 401,000 zł per year.
  • Equity eligibility with an equity grade of 4 and potential equity rewards.
  • 100% subsidized medical, dental, and vision coverage for employees and dependents.
  • Monthly stipends and Flexible Spending Wallets for tech, food, lifestyle, and family-forming expenses.
  • Away Days and competitive vacation/holiday time off to rest and recharge.
  • Learning and Development programs.
  • Parental benefits.
  • Employee Resource and Community Groups.
  • Employee stock purchase plan (ESPP) with a discount on Affirm shares.

Interested in this position?

Apply directly on the company website

Apply Now

Similar Roles

instacart.careers

Senior Software Engineer, Core Experience

instacart.careers 1K-5K Internet Software & Services

Instacart is hiring a Senior Software Engineer to improve the backend systems that power personalized shopping and purchase experiences for its grocery platform.

Canada Full-time Senior Software Engineer
$124k-$131k
Datadog Go GraphQL PostgreSQL Ruby
4 minutes ago
Tailscale

Software Engineer, Engineering Tooling

Tailscale 51-250 Diversified Telecommunication Services

Tailscale is hiring a full-time software engineer to build internal engineering services and tooling that support teams across the company and improve the reliability of its remote-first product infrastructure.

United States Full-time Senior Software Engineer
$181k-$226k
CI/CD Go Secrets Management SQL
4 minutes ago
Applied Intuition

Senior Software Engineer - Operating Systems

Applied Intuition 251-1K Internet Software & Services

Applied Intuition is seeking a Software Engineer for its NextGen OS team to help build a new full-stack operating system for future vehicles and products.

United States Full-time Senior Embedded Systems Engineer Software Engineer
$155k-$253k
C C++ Embedded Systems
4 minutes ago
Descript

Software Engineer, Editor

Descript 51-250 Internet Software & Services

Descript is hiring an experienced software engineer to build the core video editing and streaming experience for its AI-powered audio and video creation platform.

United States Full-time Senior Software Engineer
$193k-$250k
PostgreSQL React Redis REST API System Design TypeScript
4 minutes ago

You're on a roll! Sign up now to keep applying.

Sign Up

Already have an account? Log in

Used by 14,729+ remote workers