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Senior Software Engineer, Back-end (Fraud)

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about 16 hours ago
Remote, SpainSenior
H1B Sponsor

Responsibilities

  • Own and deliver quarterly goals for the engineering team.
  • Design and implement real-time fraud decisioning services and APIs in Python or Kotlin.
  • Build and evolve the platform for launching fraud decisioning in new countries.
  • Integrate region-specific fraud and risk vendors.
  • Support peers and stakeholders throughout the product development lifecycle.
  • Create and monitor metrics to support system operations and availability.
  • Foster a culture of quality and ownership within the team.
  • Participate in an on-call rotation as required.

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 with a track record of delivering maintainable services.
  • Fluency with AI-driven engineering and modern AI tooling.
  • Proficiency in SQL and working with data-rich environments.
  • Familiarity with CI/CD practices and safe production deployments.
  • Strong written and verbal communication skills in distributed teams.
  • Proactive, ownership-driven mindset focused on learning and team success.
  • Experience with Snowflake, dbt, Airflow, or Chronosphere is a plus.
  • Background in fraud prevention, risk systems, or real-time decisioning is a plus.
  • Experience building for multiple markets or regions is a plus.
  • Experience in the fintech sector or regulated environments is a plus.

Benefits

  • 100% subsidized medical coverage, dental and vision for you and your dependents.
  • Flexible Spending Wallets for tech, food, and lifestyle.
  • Wellness days to recharge.
  • Learning & Development programs.
  • Parental benefits.
  • Employee Resource & Community Groups.
  • Competitive vacation and holiday schedules.
  • Employee stock purchase plan at a discount.

Tech Stack

Apache AirflowAWSdbtKotlinKubernetesMySQLPostgreSQLPythonSnowflakeSQL

Categories

AI & MLBackendData Engineering