Java Software Engineer

4 days ago

Athens Metropolitan Area, Greece -WorkEthix Full time €25,000 - €75,000 per year

Java Developer (AI Tools) – Athens (X4 roles)

For a
fast-growing tech startup
in Athens, building cutting-edge
AI-powered digital and payment solutions
. To strengthen their development team, we're looking for a
Java Developer
with experience in the latest
Java versions and AI-driven tools
to design and build scalable, secure, and innovative systems.

What you'll do

  • Develop, test, and maintain
    Java-based applications
    with the latest Java features.
  • Build and optimize
    payment flows, APIs, and transaction services
    .
  • Integrate
    AI-driven tools
    for code quality, performance optimization, and testing.
  • Collaborate with product managers, DevOps, and QA teams to deliver end-to-end solutions.
  • Ensure best practices in
    clean code, security, and scalability
    .
  • Stay updated with new
    Java releases, AI frameworks, and emerging fintech tech
    .

What we're looking for

  • 3+ years of professional experience as a
    Java Developer
    .
  • Strong knowledge of
    Java 17+ (or the latest LTS release)
    and Spring Boot.
  • Experience with
    RESTful APIs, microservices, and event-driven architectures
    .
  • Hands-on with
    databases
    (SQL & NoSQL).
  • Familiarity with
    AI-powered developer tools
    (e.g., GitHub Copilot, Tabnine, or automated testing AI tools).
  • Exposure to
    CI/CD pipelines
    and cloud platforms (AWS/GCP/Azure).
  • Strong problem-solving skills and a passion for working in a
    startup environment
    .

Nice to have

  • Knowledge of
    Kotlin or Scala
    .
  • Experience in
    payment platforms, PSP integrations, or fintech systems
    .
  • Background in
    AI/ML integration
    into production systems.

What we offer

  • Join an
    early-stage, high-impact fintech startup
    in Athens.
  • Competitive salary package + equity options.
  • Hybrid/flexible working setup.
  • Opportunity to shape
    core backend systems
    and future product features.
  • Access to modern tools, AI-powered development support, and continuous learning.

If you're excited about
modern Java development, AI-driven coding tools, and building fintech products
, we'd love to hear from you

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