Virtuozzo

Software Development Engineer in Test, Research

Virtuozzo

contract

Posted on:

Location Type: Remote

Location: Bulgaria

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Tech Stack

Distributed SystemsDockerGoKubernetesLinuxPython

About the role

  • Design and evolve Python-based test frameworks for functional, performance, reliability, and stress testing
  • Build and operate production-like test environments for distributed storage and SaaS systems
  • Validate scalability, throughput, latency, tail latency, and failure scenarios
  • Debug system-level issues (performance regressions, race conditions, distributed failures) together with core engineers
  • Write low-level test utilities and probes in C / Go where Python is not enough
  • Integrate tests deeply into CI/CD pipelines and observability stacks
  • Collaborate with academic research teams on experimental labs and next-gen infrastructure ideas
  • Explore and evaluate AI-assisted testing approaches where they provide real value

Requirements

  • 5+ years in SDET, QA automation, or systems-focused software engineering
  • Strong Python skills for test frameworks, tooling, and automation
  • Practical experience with C in systems, testing, or infrastructure contexts
  • Solid Linux knowledge and understanding of distributed systems
  • Experience testing backend / infrastructure / storage / networking systems
  • Familiarity with Docker, Kubernetes, CI/CD , and observability tools
  • Comfortable reading production code, not just testing around it
  • Curiosity for research, experimentation, and deep technical problems
Benefits
  • Remote and flexible working hours in European timezones
  • Space for creativity and experimentation within the company’s goals
  • Share Options – everyone shares in our success with share options
  • We help our team get private medical insurance
  • Supportive, engineering-driven culture with minimal bureaucracy
  • The chance to influence Product and R&D decisions from day one
  • A smart, friendly team that values reliability, simplicity, and automation
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
PythonCGotest frameworksautomationperformance testingreliability testingstress testingdebuggingscalability
Soft Skills
collaborationcuriosityexperimentationproblem-solving