floLIVE is rewriting the playbook for the global IoT Connectivity landscape. Our groundbreaking Connectivity Management Service is reshaping the way Enterprises, Cloud providers, IoT service providers, and Mobile Operators connect and manage their devices across the globe.
Our global presence includes the United Kingdom, United States, Israel, Bulgaria, and China, solidifying our commitment to local, secure, and compliant connectivity solutions. With our innovative software-defined connectivity technology, floLIVE delivers seamless connectivity management across boundaries.
We are looking for an experienced, hands-on Senior Linux Infrastructure & Virtualization Engineer to take ownership of our on-premises physical and virtual infrastructure. This is a hands-on engineering position focused on Linux systems, bare-metal servers, virtualization, infrastructure performance, and reliability. The successful candidate must be capable of independently planning, implementing, maintaining, troubleshooting, and optimizing physical server infrastructure and virtualization platforms.
Responsibilities:
- Install, configure, maintain, and troubleshoot enterprise-grade physical servers in data center. Perform BIOS/UEFI, BMC (iDRAC/iLO/IPMI), RAID/HBA, and NIC firmware upgrades. Configure and optimize server hardware, including CPU topology, memory and storage.
- Diagnose hardware failures and performance issues.
- Prepare and repurpose existing hardware for new virtualization environments.
- Install, administer, troubleshoot, and optimize Linux servers, primarily Ubuntu.
- Deploy, maintain, and troubleshoot Proxmox VE clusters and KVM-based virtualization environments.
- Perform root cause analysis of infrastructure incidents.
- Optimize resource utilization, stability, and infrastructure capacity.
- Maintain backup, recovery, and infrastructure availability procedures.
Infrastructure Engineering:
- Independently plan and execute infrastructure upgrades, migrations, and maintenance activities.
- Evaluate technical risks and implement appropriate validation and rollback procedures.
- Automate routine infrastructure tasks using Bash, Python, or Ansible.
- Document infrastructure configurations, procedures, and architectural decisions.
Qualifications:
- 5+ years of relevant hands-on Linux infrastructure or virtualization engineering experience, including substantial responsibility for production systems.
- Strong Linux administration, troubleshooting, and performance optimization skills, understanding of Linux storage and filesystems, including storage performance troubleshooting.
- Strong understanding of virtualization architecture and hypervisor internals, including KVM/QEMU concepts, CPU and memory management, storage, and networking.
- Hands-on experience administering and troubleshooting production virtualization hosts or clusters. Experience with Proxmox/KVM is preferred; substantial low-level experience with other platforms may also be considered.
- Willingness and ability to perform hands-on work at physical data center location (Sofia) when required.
Skills Required
- Excellent knowledge of Linux, including Ubuntu, CentOS, and Red Hat
- Familiarity with VMware, Proxmox, or KVM-based virtualization
- Understanding of Linux security, cloud security, core switching and routing, SSL, IPSec, SAN, and virtualization
- Hands-on troubleshooting experience with servers, routers, switches, and network interface cards
- Knowledge of system flow charts, data processing concepts, and telecommunications principles
- Understanding of data center operations and support best practices
- Experience with backup and disaster recovery principles
- Background in SaaS infrastructure and service development across software, operations, and networking
- Ability to work independently and in a team environment
- Knowledge of Pacemaker or Kubernetes
- Knowledge of MySQL
What We Do
floLIVE offers advanced 5G network solutions, both privately and over the cloud, and a full suite of global cellular connectivity services for IoT use cases. We're changing the game for Mobile Operators, IoT Service Providers and enterprises, by challenging traditional networks and IoT solutions, and getting IoT up and running faster, more flexibly, and with more control. floLIVE operates floNET - a one-of-a-kind Global Connectivity Service designed and built especially for IoT. With floNET, enterprises can enjoy seamless global connectivity for their connected devices - fully compliant, will high performance, no matter where they operate! We encompass a wide range of services to market verticals, from a full GSM IoT-oriented core network, through to IoT BSS, device and eSIM management and targeted IoT vertical solutions - all provided as-a-service via our global cloud. Our offering: - for Device Manufacturers: Global connectivity + new recurring revenues - for IoT Service Providers: Full visibility and control over their connected assets, driving superior support to their customers - for Mobile Operators: A holistic platform to build, operate and monetize their IoT business, alongside a unique global extension offering - for Cloud Providers: Advanced 5G network-as-a-service solutions to increase their footprint among mobile operators and service providers
