Software Developer (System-Level Programming)

Confidential

Not specified permanent

Posted: January 31, 2026

Required Skills

Job Description

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

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