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  • Senior Java Engineer
    New

    Senior Java Engineer

    Kraków
    28 000 - 36 000 PLN/monthNet per month - B2B
    Type of work
    Full-time
    Experience
    Senior
    Employment Type
    B2B
    Operating mode
    Hybrid
    Loopme

    Loopme

    LoopMe is a technology company that uses AI to improve brand advertising performance & outcomes.

    Company profile

    Tech stack

      English

      B2

      Java

      master

      Spring

      advanced

      Spring Boot

      advanced

    Job description

    Online interview
    Friendly offer

    Are you interested in working with cutting-edge technologies and developing high-performance applications capable of handling over 2 million data queries per second? If so, we have the perfect job for you at LoopMe!


    We are a team of skilled engineers who develop and maintain real-time bidding platforms for global advertisers. As part of our team, you will work alongside other talented engineers daily, using technologies such as Java, Postgres, Clickhouse, Kafka, and others to scale performance, optimize cloud infrastructure, and create innovative features for our various product lines.


    Join us and be a part of our mission to push the boundaries of what is possible in the advertising industry!


    What we need

    We are looking for a Senior Java Backend Engineer to help build out our high-load ad serving system, capable of handling over 2M requests/second with 50ms response time.


    What you'll be doing

    • Developing features and performance optimisation for our Java ad-serving application
    • Hardening system architecture to ensure smooth operation during peak-load time
    • Implementing complex targeting algorithms developed by our data science team into the core ad-serving flow
    • Working hand-in-hand with our data science team to roll out new AI-powered features
    • Implementing backend for BI ad-hoc queries


    You'll have

    • 5+ years experience in engineering
    • Strong knowledge of Java, Spring / Spring Boot
    • Practical knowledge of SQL and experience with PostgreSQL (or any other database)
    • Linux shell
    • Docker


    Nice-to-have:

    • Concurrency understanding
    • Experience with gRPC, RxJava, Project Reactor
    • Experience with document-oriented databases
    • Strong knowledge of SQL
    • Experience with Kafka


    Benefits:

    • Flexible working schedule with the hybrid type of work
    • Annual performance bonus 
    • One month of workation (you can work from any part of the world for one month)
    • Multikafeteria
    28 000 - 36 000 PLN/month

    Net per month - B2B

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