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From the employer's careers site First seen 5 Nov 2026

Senior Backend Engineer

AppsFlyer Kyiv senior full-time

The employer hasn't listed a salary.

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Description

AppsFlyer is known for its massive backend production. At any given moment, thousands of servers are consuming 150+ billion mobile app events, crunching users' data, serving requests, and communicating on a massive scale.

The Analytics group is responsible for showing clients the stories their data is telling. Through complex aggregation, mission-tailored analytical databases, and carefully crafted APIs, we provide slice and dice analysis in our beautiful dashboards and through external integrations.

What you'll do

  • Lead the backend and data direction of our team, and grow its backend and data capabilities to support frontend-oriented engineers.
  • Develop end-to-end features, from data processing to database choice and modeling implementation.
  • Collaborate with product managers and software engineers to deliver complex products.
  • Analyze and improve performance, scalability, and stability of our systems, environments, and tools.
  • If you're up to the challenge, speak at meetups, write blog posts, contribute to existing open source projects, and release new open source software.

What you have

  • 5+ years of development experience with a passion for excellence.
  • Experience in data engineering with a focus on Apache and Scala-Spark / py-spark.
  • Experience with high throughput, low latency, mission-critical distributed systems.
  • Great communication skills in English.
  • B.Sc. in Computer Sciences or an equivalent.

Bonus Points

  • Experience with large-scale production databases.
  • Experience with Airflow.
  • Strong server-side skills.
  • Experience with production-grade BigQuery ETL and DBs.
  • Experience with production-grade GO BE services.
  • Experience with production-grade Clojure BE services.
  • An 'AI mindset': stays up to date with the AI landscape, explores tools like Cursor or GitHub Copilot, and looks for ways to boost productivity through AI.
  • Recommended by an AppsFlyer employee.

Benefits Package

  • Health Insurance.
  • Paid Unlimited Vacation Days + all national holidays + additional recharge days.
  • Meals Reimbursement.
  • Sport Reimbursement.
  • Breakfast in the office.
  • Mental health program.
  • Team building, happy hours, and other team activities.
  • Paid sick days.
  • Snacks, fruits & ice cold beer.
  • All new team members are provided with a brand-new Mac laptop with 2 monitors and a Starter package.

Skills

Required

  • Apache
  • Scala-Spark
  • py-spark
  • English

Nice to have

  • large-scale production databases
  • Airflow
  • GO BE services
  • Clojure BE services
  • BigQuery ETL and DBs

Ready to apply?

You apply with the employer directly. Their original posting is here: https://job-boards.greenhouse.io/appsflyer/jobs/8905790002

Apply on AppsFlyer