We are looking for Software Engineers C/C++ to join one of our 2 teams in Vilnius who work with Rocket Software’s Universe and Unidata database systems.  These databases are part of the Multivalue (MV) database market, where Rocket Software is the recognized leader.   Our Vilnius location is a key development center globally with more than 20 software engineers focused on Universe and Unidata.

Rocket Software supports flexible hybrid working and embodies people focused values where we treat colleagues with empathy, trust, humanity and love.  We encourage innovation, technical excellence and personal growth.

What you will Do

• Develop product features, enhancements, and fixes related to the Universe and Undata in C/ C++.
• Create test cases and review test results.
• Be part of a scrum team participating in refinement, sprint planning, daily standup, retrospectives and demos.
• Leverage AI tools to understand requirements, estimate effort and implement new features.
• Drive improvements in engineering practices and product features.
• Collaborate with other colleagues to support DevOps, quality practices, Innovation.
   

Required Qualifications

• Proficient in C/C++ with a minimum of 2 years of hands-on development experience.
• Solid understanding of database fundamentals, including:
  • ACID properties
  • Indexing techniques
  • Query optimization & execution plans
  • Transactions & concurrency control
• Strong foundational knowledge of operating systems, such as:
  • Memory management
  • Process and thread management
  • File I/O & file systems
  • System libraries & POSIX APIs
  • Networking concepts and basic security principles
• Familiarity with commonly used data structures (Queues, Linked Lists, Hash Tables, Trees).
• Familiarity with standard algorithms (Searching, Sorting, Hashing).
• Proficient with C/C++ debugging tools (e.g., gdb, Valgrind, etc.).
• Strong analytical, debugging, and problem‑solving skills.
• Experience with application performance optimization.
   

The following points are “nice-to-have” qualifications and not required for joining the team.
They simply provide additional context about our tech stack and focus areas. If you only match a portion of them — great. If not — you can learn many of these on the job.

• Experience with MultiValue databases.
• Background in database kernel development or low‑level database internals.
• Familiarity with AI-assisted development tools (GitHub Copilot, Claude, Cursor).
• Basic understanding of machine learning or AI concepts.
• Ability to evaluate and integrate AI‑based development tools.
• Knowledge of compiler architecture (lexing, parsing, semantic analysis, code generation).
• Experience with GCC/Clang toolchains or custom compiler components.
• Exposure to build systems, linkers, and runtime environments.
• Experience writing test cases and working with automation/testing frameworks.
• Knowledge of additional languages/technologies: Python, Java, HTTP, client‑server architecture, RPC, XML, JSON.
• Understanding of security: encryption, authentication, authorization.
• Experience working with cloud or virtualized environments (AWS, Azure, VMware, containers, WSL).
• Experience in an Agile environment (JIRA, Confluence).