Senior Principal Java Engineer

Lenovo

Lenovo

Software Engineering

Bucharest, Romania

Posted on May 21, 2026

General Information

Req #
WD00099229
Career area:
Hardware Engineering
Country/Region:
Romania
City:
Bucharest
Date:
Thursday, May 21, 2026
Working time:
Full-time
Additional Locations:
* Romania

Why Work at Lenovo

We are Lenovo. We do what we say. We own what we do. We WOW our customers.
Lenovo is a US$69 billion revenue global technology powerhouse, ranked #196 in the Fortune Global 500, and serving millions of customers every day in 180 markets. Focused on a bold vision to deliver Smarter Technology for All, Lenovo has built on its success as the world’s largest PC company with a full-stack portfolio of AI-enabled, AI-ready, and AI-optimized devices (PCs, workstations, smartphones, tablets), infrastructure (server, storage, edge, high performance computing and software defined infrastructure), software, solutions, and services. Lenovo’s continued investment in world-changing innovation is building a more equitable, trustworthy, and smarter future for everyone, everywhere. Lenovo is listed on the Hong Kong stock exchange under Lenovo Group Limited (HKSE: 992) (ADR: LNVGY).
This transformation together with Lenovo’s world-changing innovation is building a more inclusive, trustworthy, and smarter future for everyone, everywhere. To find out more visit www.lenovo.com, and read about the latest news via our StoryHub.

Description and Requirements

Lenovo is looking for a Senior Principal Java Engineer to design and build scalable, high-performance backend systems using Java and modern microservices architecture, ensuring reliability, performance optimization, and seamless integration with AI-driven and event-based enterprise solutions.

What you will do:

Backend System Development:

  • Design and develop platform business functions based on Product Requirement Documents (PRD).
  • Implement scalable microservices using Java and Spring ecosystem.
  • Ensure high-performance, reliable backend services that meet business requirements.

Architecture & Data Design:

  • Design efficient business models and data structures based on platform requirements.
  • Collaborate with database teams to optimize PostgreSQL schema design.
  • Implement best practices for data integrity and system scalability.

System Maintenance & Troubleshooting:

  • Diagnose and resolve platform issues including service exceptions and interface failures.
  • Utilize logging, monitoring, and debugging tools for rapid problem resolution.
  • Ensure platform stability and reliability through proactive maintenance.

Performance Optimization:

  • Analyze and optimize platform performance through code improvements and database tuning.
  • Configure and optimize middleware components including RabbitMQ and Redis.
  • Implement monitoring and continuous performance improvements.

What you will bring:

  • Bachelor's degree or above in Computer Science, Software Engineering, or related fields.
  • 12+ years of experience with high-scale distributed systems and cloud-native development
  • Strong proficiency in Java programming including multithreading, collections, and JVM optimization.
  • Extensive experience with Spring Boot, Spring Cloud, and microservices architecture.
  • Expertise in middleware technologies: PostgreSQL, RabbitMQ, Redis, Docker, and Kubernetes.
  • Experience with CI/CD pipelines and DevOps practices
  • AI-assisted development tools proficiency is a big plus
  • Strong learning ability and excellent teamwork skills.
What we offer:

Compensation & Rewards :

  • Performance-based salary reviews and annual bonuses
  • Meal tickets, service anniversary awards, and referral bonuses
  • Employee share purchase program
  • Scholarships for employees’ children

Health & Well-being :

  • Fully covered private medical insurance
  • Annual well-being allowance for sports, training, relaxation, and therapy ,and on-site chair massage
  • Life & accident insurance with extra medical coverage
  • Employee Assistance Program

Training & Development :

  • Technical Ladder & Sales Excellence programs
  • Individual Career Development Plans with mentoring
  • Bookster subscription for continuous learning

Time Away :

  • 21–28 vacation days depending on tenure
  • Sick days and extra paid leave for public holidays on weekends
  • Additional paid leave for employees with children
We are an Equal Opportunity Employer and do not discriminate against any employee or applicant for employment because of race, color, sex, age, religion, sexual orientation, gender identity, national origin, status as a veteran, and basis of disability or any federal, state, or local protected class.

Additional Locations:
* Romania
* Romania

AI PROCESSING NOTICE
We use AI-based tools to support some of our processes (e.g. online interviews recordings and transcripts) in order to achieve better efficiency, accuracy and for our documentation purposes. AI can make mistakes, but we always make sure that the outputs are manually reviewed by a human. You can always opt-out or contact us in case of any question.
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