Java Developer

150 - 200 PLNNet per hour - B2B
Java

Java Developer

Java

Warsaw, Warszawa

Caspian One

Full-time
B2B
Mid
Hybrid
150 - 200 PLN
Net per hour - B2B

Tech stack

    Java

    advanced

    Kafka

    junior

    Docker

    junior

    Kubernetes

    junior

Job description

  • B2B contract, up to 200ph

  • 1 day in office per week required in Warsaw


Trade lifecycle/processing, data store (all asset classes inc crypto) – trade booking (100,000 per min), 100gb heat memory, large memory cache platform.

This role is to maintain, develop and modernise the system in new evolution of changes/integrations and upgrades – moving from 21 to 24 java Core. Strong core java experience is essential (5 years directly), 8 years in dev – does NOT need to be focused on banking experience, however large organisation experience though is a must. New areas of interest are microservices trade data store – so database exposure is an advantage.


Required tech skills:


  • Java

  • Kubernetes

  • Docker (would be a strong plus)

  • Kafka (would be a strong plus)

Published: 12.09.2025

Meet the company

Caspian One

Caspian One is a financial technology services partner, delivering high-impact opportunities within global banks, hedge funds, and fintechs. We specialise in strategic skillset acquisition across Java, C#, QA/Testing, DevOps, Data Engineering, Front End (UI/UX), and Project Delivery (BA, PM, Scrum Master). From modernisation programmes to greenfield builds, we align expert resources with mission-critical priorities - enabling you to grow your expertise within fast-paced, business-driven environments.

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Java Developer

150 - 200 PLNNet per hour - B2B
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Java Developer

Warsaw, Warszawa

Caspian One

150 - 200 PLNNet per hour - B2B
Salary
150 - 200 PLN
Net per hour - B2B
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