Software Developer (System-Level Programming)

About Virtuozzo

Virtuozzo is a leading innovator in virtualization and cloud infrastructure solutions, empowering service providers worldwide to build and manage any cloud—private, public, or hybrid—efficiently and cost-effectively. We pioneered container-based virtualization technologies and actively contribute to foundational OSS projects such as OpenVZ, Linux kernel, Kubernetes, CRIU, KVM, OpenStack, and more

At Virtuozzo, you’ll be joining a globally distributed engineering team, solving infrastructure-grade challenges and powering the next wave of cloud platforms. To join our VHI Storage team, we are looking for Developers to:

Role & Responsibilities

• Design, develop, and maintain system-level software components primarily in C.


• Work in a Linux-based environment, including debugging, performance tuning, and automation.


• Collaborate with cross-functional teams to design scalable and reliable systems.


• Analyze and improve network-related functionality and performance.


• Participate in code reviews, architecture discussions, and technical planning.
  

Requirements

• Strong hands-on experience with Linux development and internals.


• Proficiency in C, with the ability to write clean, efficient, and maintainable code.


• Solid understanding of system-level programming, including memory management, concurrency, and IPC.


• Good knowledge of computer networks, including TCP/IP stack and socket programming.
  


• Excellent fluency in English

Nice to have

• Experience with Golang and/or Python.


• Familiarity with designing and implementing distributed systems.


• Knowledge of performance profiling and debugging tools.


• Experience with Linux AIO, io-uring, RDMA stack in Linux.


• Understanding at least one of S3/NFS/Samba/iSCSI/NVMeOF protocols, Linux VFS internals, file systems architecture, Linux block I/O subsystem

What We Offer 

• Remote and flexible working hours anywhere in EMEA


• Professional growth: training budget, certification support, mentorship, and career progression pathways


• Inclusive, multicultural team: work alongside talented engineers from across the globe on infrastructure-grade cloud products


• Employee perks: recognition programs, referral bonuses, and learning initiatives such as book clubs or tech talks


• Share Options – shares in our success with share options
  


• Open for employment in our entity in Serbia or Bulgaria or for B2B contracting elsewhere in Europe.

Process stages:

• HR intro call (30min)


• Team meeting (1h)


• Technical interview (code or take-home task)


• Hiring manager interview (30min)


• CTO meet&greet