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  • All offersKrakówJavaMid/Senior Java Engineer
    Mid/Senior Java Engineer
    Java
    Loopme

    Mid/Senior Java Engineer

    Loopme
    Kraków
    Type of work
    Full-time
    Experience
    Mid
    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

      Java

      master

      Microservices

      master

      Kubernetes

      master

      Kafka

      advanced

      SQL

      advanced

      Concurrency

      advanced

      ClickHouse

      regular

      Docker

      regular

      RxJava

      nice to have

    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 on a daily basis, 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. At LoopMe, we follow Agile methodology to deliver features rapidly to the market.


    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 under 50ms response time.


    What you'll be doing

    • Developing features and performance optimisation for our Java ad-serving application
    • Implementing complex targeting algorithms developed by our data science team into the core ad-serving flow
    • Implementing backend for BI ad-hoc queries


    You'll have

    • 3+ years experience in engineering
    • Strong Java knowledge and concurrency understanding
    • Strong knowledge of SQL
    • Experience with PostgreSQL (or any other database)
    • Experience with Kafka
    • Experience with columnar DB (Clickhouse, Vertica, etc)
    • Linux shell
    • Docker
    • Nice-to-have: experience with gRPC, RxJava, Project Reactor
    • A proactive attitude towards improving processes and finding new solutions to challenging business problems
    • Be a self-motivated, reliable and flexible team player


    Benefits

    • Competitive compensation package
    • International work environment
    • Flexible working schedule and the hybrid type of work
    • Annual performance bonus (up to 10%)
    • One month of workation (you can work from any part of the world for one month)


    To all recruitment agencies: LoopMe does not accept agency resumes. Please do not forward resumes to our jobs career page, LoopMe employees or any other company location. LoopMe is not responsible for any fees related to unsolicited resumes.