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September 6, 2026

Senior Java Developer (Microservices, Kafka)

Senior • On-site

Krakow, MA, Poland

We are seeking a Senior Java Developer to join our team, bringing expertise in microservices architecture and Kafka-based enterprise messaging systems to power cloud-based, blockchain-driven financial solutions.

Responsibilities

  • Lead the implementation of backend systems and mentor junior developers
  • Develop reliable, cloud-based solutions that scale to meet business needs
  • Design and build cloud-native applications for distributed systems
  • Collaborate with diverse stakeholders across technology and business functions
  • Bring creative and innovative thinking to system design and architecture
  • Contribute to projects involving DLT technologies, including the Ethereum blockchain
  • Maintain strong attention to detail and security across all development work
  • Communicate effectively with colleagues from a wide range of backgrounds

Requirements

  • At least 5 years of experience in Java development
  • Expertise in developing cloud-native applications using RESTful web services and Kafka-based event-driven architectures
  • Hands-on experience with Kubernetes and Helm
  • Strong attention to detail and security awareness
  • Familiarity with cloud computing, DevOps practices, and digital asset technologies
  • Excellent communication skills in English, with the ability to interact effectively with a wide range of colleagues

We offer

  • Supportive team and agile, startup-like culture
  • Hybrid-by-design work mode and opportunity to work remotely within Poland
  • Chance to work abroad for up to 60 days annually
  • Business-driven relocation opportunities

Growth opportunities

  • Career development programs
  • Thought leadership, mentoring, soft skills, and well-being programs
  • Certification opportunities: Anthropic, Gemini, GCP, Azure, AWS
  • English classes

Benefits

  • Stable pay
  • Participation in the Employee Stock Purchase Plan with a 15% discount
  • Benefits package, including health insurance, multisport, and shopping vouchers
  • Referral bonuses up to $2,000
  • Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee, and more
  • Corporate, social, and well-being events

Please note

  • Benefits listed above are available to employees only.
  • Contractors are welcome; B2B cooperation agreement terms are agreed individually.
  • Only selected candidates will be contacted.

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