Position: Senior Java Developer
Company: HES Fintech
Category: Java
Experience required: 3y
English level: intermediate

Who we are?
Experience Platform that gives Fortune 500 marketers control over omnichannel digital ad experiences via a simple and sophisticated, unified platform. We simplify ad 
experience management by integrating with existing tech and media stacks to centrally manage 
ad experiences across all channels. The platform was purpose-built to power all ad creative use 
cases including DCO, personalization, audience management, creative performance 
visualization, experimentation, workflow, and self-optimizing performance competitions.

Requirements:
— at least 4 years of commercial experience with any JVM-based language;
— pro-active attitude, someone who is eager to take ownership and responsibility, to 
understand what the problem is and solve it effectively;
— senior level expertise in OOP, algorithms and data structures, design patterns;
— experience with concurrency, multithreading, distributed systems;
— experience with OLAP Databases (hands-on with Vertica or Clickhouse) is a big plus;
— upper intermediate English.

Technology stack contains but not limited to:
— Java 8 (Scala, Kotlin), SQL;
— MySql, Postgres, Vertica, Clickhouse;
— Cassandra, Redis;
— Kafka, RabbitMQ;
— Docker, Kubernetes.

Responsibilities:
— Working with High Load distributed systems with strict RPC/Latency requirements;
— Big Data, Stream + Batch data processing;
— Data analysis by business use cases;

See you CV and waiting you in our big family!