Do you have the code-level precision to drive large-scale, critical system integrations? An established international tech organization operating in the defense sector is seeking for skilled Mid and Senior Java Software Engineers to join its technical team. This is an opportunity to contribute to large-scale system integration projects, designing solutions that demand high performance and stability. The position is full-time, permanent and based in Athens, northern suburbs. A hybrid working model is offered.

key responsibilities • Requirements Analysis & Implementation: Perform detailed requirement analyses and produce documentation according to engineering standards. • Development: Code native applications and systems software. • Integration: Merge proprietary and third-party software to enhance system capabilities. • Optimization: Debug and test (in standalone environments) to verify memory, processor, and performance requirements. • Support & Deployment: Assist test teams during acceptance phases and support on-site installation, check-outs, or upgrades.

experience 4+ years of relevant experience

qualifications • Academic Background: BSc in Computer Science, Electrical Engineering, or a related field. • Experience: 4+ years in systems programming. • Core Languages: Strong proficiency in Java (Python skills are a plus). • Networking DNA: Deep understanding of TCP/IP and UDP/IP protocols. • OS Mastery: Comfortable working across Windows & Linux environments (including shell scripting & automation). • Data Handling: Experience with SQL (PostgreSQL/SQLite), NoSQL (Redis) and XML/JSON.