{"id":4276368,"url":"https://alion.io/job/onapp-software-engineer-backend-focus-2","title":"Software Engineer (Backend focus)","company":{"id":2128220,"name":"OnApp","domain":"onapp.com","url":"https://alion.io/company/onapp","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"BambooHR","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Tbilisi, Georgia"],"countries":["GE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ansible","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Bash","optional":false},{"name":"C++","optional":false},{"name":"FreeBSD","optional":false},{"name":"GCP","optional":false},{"name":"Go","optional":false},{"name":"JavaScript","optional":false},{"name":"Kubernetes","optional":false},{"name":"KVM","optional":false},{"name":"Linux","optional":false},{"name":"OpenStack","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"Rust","optional":false},{"name":"Terraform","optional":false},{"name":"Windows","optional":false}],"status":"live","first_seen_at":"2026-11-13T19:08:28Z","employer_posted_date":"2026-11-13","last_verified_at":"2026-11-13T19:08:28Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"About Virtuozzo\nVirtuozzo is a provider of infrastructure software for AI and the cloud, helping cloud service providers, SaaS companies, and enterprises build and operate efficient, scalable infrastructure. We combine an optimised operating system with orchestration, management, automation, and protection to deliver mainframe-like efficiency, performance, reliability, versatility, and security-while reducing overall cost and complexity.\nOur Virtuozzo Infrastructure System(V/IS) brings together compute, storage, and networking to support traditional applications, cloud-native workloads, and AI services. We help organisations modernise their infrastructure, make better use of their hardware, and bring new cloud- and GPU-powered services to market on their own infrastructure and under their own brand.\nOur technology serves more than 100,000 companies in over 100 countries. With deep engineering roots, we pioneered container-based virtualisation and continue to contribute to foundational open-source projects, including OpenVZ, the Linux kernel, Kubernetes, CRIU, KVM, and OpenStack.\nThe Role\nOur team develops the V/IS and we are looking forEngineers to join our team. As aSoftware Engineer, you will play a key role in building new features, optimizing performance, and ensuring reliability in production environments. You will collaborate across the full stack of the product, from UI and REST APIs to cluster lifecycle management, virtualization, monitoring, and seamless product updates.\nKey Responsibilities\nDesign and develop new features for V/IS.\nDevelop and maintain automated tests to ensure high code quality.\nImprove and optimise existing functionality for performance and scalability.\nProvide support and maintenance for real customer environments.\nSkills & Abilities\nStrong proficiency in at least one programming language: Python, Golang, C/C++, or Rust.\nDeep understanding of Linux operating system architecture.\nSolid knowledge of networking concepts.\nExcellent problem-solving skills and ability to tackle complex challenges.\nPreferred Knowledge\nExperience with hypervisors and container technologies.\nFamiliarity with distributed systems design and implementation.\nBackground in system programming.\nUnderstanding of Windows, Linux, or FreeBSD kernel internals.\nProficiency with automation and infrastructure tools such as Ansible, Bash scripting, and Terraform.\nKnowledge of Kubernetes orchestration.\nExperience with cloud platforms such as AWS, Azure, or Google Cloud.\nWeb development skills (JavaScript, HTML).\nWhat We Offer\nRemote and flexible work from European locations.\nA collaborative engineering culture focused on deep technical challenges and real-world impact.\nA chance to influence the design and evolution of a global-scale cloud infrastructure platform.\nProfessional development opportunities through training, certifications, and mentoring.\nGroup private medical insurance/ medical allowance.\nEmployee/Contributors recognition programmes and incentives.\nReferral programme 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