Averian is looking for a Senior Java Developer to join the team developing a large-scale, customer-facing enterprise platform designed to deliver high-performance, reliable, and mission-critical software solutions for global clients. The platform focuses on advanced Java API development, system performance optimization, and efficient Hibernate/PostgreSQL data processing to support real-world production environments where accuracy and stability truly matter.
Join our international team working with global technology partners across North America and Europe.
RESPONSIBILITIES * Design and develop high-performance Java backend services and customer-facing APIs for a large-scale enterprise platform. * Optimize system performance with focus on Hibernate tuning, PostgreSQL query optimization, and transaction efficiency. * Diagnose and resolve performance bottlenecks across the backend stack in production environments. * Сollaborate closely with frontend teams (Next.js) to support end-to-end customer workflows. * Provide technical leadership through code reviews, architecture discussions, and implementation of best practices. * Mentor team members and help drive improvements in development quality, speed, and engineering standards. * Support and accelerate migration and modernization efforts of legacy Java systems.
SKILLS * 5+ years of professional software development experience with strong focus on Java. * Extensive experience building and maintaining enterprise-grade Java APIs. * Deep hands-on knowledge of Hibernate performance tuning and troubleshooting. * Strong experience with PostgreSQL, including query optimization and schema design. * Solid understanding of backend performance, concurrency, and scalability. * Experience working with modern frontend-backend integrations (e.g. Next.js). * BSc in Computer Science / Software Engineering or equivalent. * Upper-Intermediate level of English.
WE OFFER * Work in a creative friendly environment using cutting-edge technologies. * Work-life balance and flexible schedule. * Competitive compensation with focus on your expectations; annual salary review. * 24-day paid vacation and 100% paid sick leave. * Financial support and legal support for individual entrepreneurs from our side. * Professional, language and soft skills trainings. * Health insurance coverage: individual and family, Fitness plan.
