Senior/Expert Java Engineer

Summary

• Senior Java Engineer with extensive experience in Hibernate, SQL, PostgreSQL, and Redis, specializing in high-performance, scalable applications;
• Expertise in AWS services (EC2, S3, RDS) and microservices architecture, with integration of Stripe payment systems in multiple projects over 3+ years;
• Skilled in clean code principles, unit testing, and software design patterns;
• Strong background in the real estate and financial domains, with additional AI experience enhancing solution innovation;
• Direct hire model;
• Duration: Long term;
• Start: ASAP;
• Locations: Bulgaria, Romania, Poland

Job Description

We’re looking for a Senior/Expert Java Engineer to join a cross-functional team building a scalable, modern platform in the real estate and financial domain. The product operates across multiple regions and is активно evolving, with a strong focus on performance, scalability, and continuous feature development.

What you’ll do

• Design, develop, and maintain high-performance Java-based applications;
• Collaborate with cross-functional teams to deliver scalable and reliable solutions aligned with business needs;
• Contribute to architectural decisions and drive best practices in software development;
• Review code, mentor engineers, and help maintain high code quality standards;
• Evaluate and introduce new technologies to improve system performance and team efficiency;
• Support the platform’s scalability, resilience, and ongoing feature expansion.

What we’re looking for

• Strong experience with Java and backend development in production environments;
• Hands-on experience with relational databases (e.g., PostgreSQL) and SQL;
• Experience working with caching solutions (e.g., Redis);
• Solid understanding of microservices architecture and distributed systems;
• Experience with cloud platforms (AWS preferred: EC2, S3, RDS);
• Familiarity with ORMs (e.g., Hibernate);
• Experience integrating with payment systems or third-party financial services;
• Strong understanding of clean code principles, design patterns, and testing practices;
• Ability to balance technical and business perspectives when making decisions.

Nice to have

• Experience with NoSQL databases (e.g., MongoDB);
• Exposure to AI-related technologies or data-driven systems;
• Previous experience in domain-driven or high-scale platforms.

Additional expectations

• Potential to grow into a technical leadership role;
• Strong collaboration skills and team-oriented mindset;
• Ability to work in a dynamic, evolving environment.