Linux & Proxmox Engineer Job at UltaHost

IP Network Engineer

As IP Network Engineer at Stacuity, you will be hands-on with the global IP netw...

Location

Isle of Man , Douglas

Salary:

Not provided

Stacuity

Expiration Date

Until further notice

Requirements

Minimum CCNA level (or equivalent) across major enterprise networking vendors - Essential
Degree (or equivalent) in Computer Science, Network Engineering, or a related discipline - Desirable (or demonstrable practical experience)
CCNP level (or equivalent) - Desirable (or working towards it)
Excellent written and spoken English - Essential
Strong, practical understanding of high-availability and failover principles at both Layer 2 and Layer 3, gained through hands-on work on ISP or enterprise routing, switching, and firewalls
Deep, practical expertise in IP routing at scale, including BGP (iBGP and eBGP) and IS-IS, along with hands-on experience managing external peering and transit relationships
Solid experience with tunnelling technologies such as GRE and VXLAN, and Layer 2 networking including HSRP/VRRP/VARP, VLANs and trunking, STP, and ARP/NDP
Working knowledge of VPN technologies and IPsec, and a security-conscious approach to network design including ACLs and IDS/IDP
Hands-on firewall configuration and management experience, including with virtualised firewalls such as pfSense, and exposure to next-generation firewall platforms such as Palo Alto, Fortinet, or Checkpoint
Hands-on configuration and troubleshooting experience across major networking vendors, with particular depth in Cisco ASR platforms (IOS-XE) and Cisco Nexus platforms (NX-OS)

Job Responsibility

Build, configure, and maintain Stacuity's global network across routing, switching, and firewall infrastructure, working closely with our architecture function and contributing to network designs as well as implementing them
Carry out day-to-day operational tasks across our WAN, LAN, and Internet edge, including routing changes, firewall rule changes, and segmentation updates
Apply and follow network standards covering routing, IP addressing, DNS, NAT, and firewall zoning, flagging gaps or improvements where you spot them
Support the lifecycle management of network hardware and software, including patching, firmware updates, and end-of-life replacement
Act as a frontline responder for network incidents, carrying out initial investigation, troubleshooting, and remediation under time pressure
Diagnose and resolve issues across routing, switching, firewalls, and connected systems, escalating to the architecture team where a design change is needed
Monitor network health and performance, using observability tooling to spot issues before they become outages
Contribute to root-cause analysis and write up clear, accurate incident notes to support post-incident review
Pick up adjacent systems work as needed, such as server management, hypervisor and virtualisation tasks, and general Linux administration
Work closely with the architecture, platform, and security teams, feeding back practical, on-the-ground experience into future designs and standards

What we offer

Compensated on-call rota

Fulltime

Middle System Administrator

We are looking for a talented System Administrator to join our team in Ternopil ...

Location

Ukraine , Ternopil

Salary:

Not provided

StartupSoft

Expiration Date

Until further notice

Requirements

2+ years of experience as a System Administrator, Technical Support Engineer, or Help Desk Specialist
Administration of macOS, Windows 10/11, Linux (Ubuntu), and Windows Server
Experience with Google Workspace (user, group, access, and security management)
Understanding of TCP/IP, DNS, OSI model, and client-server architecture
Hands-on experience with MikroTik (CAPsMAN) and Ubiquiti
Understanding of NAT, Firewalls, VLANs, and VPN technologies (WireGuard, OpenVPN, IPSec)
Experience with monitoring and security tools: Zabbix, Elastic Stack, Elastic Defend, EDR/XDR solutions
Experience with Proxmox, Docker, Nginx, Apache, IIS
Basic knowledge of PostgreSQL, MariaBD
Experience with Help Desk systems and asset management

Job Responsibility

Provide user support and incident resolution
Manage accounts, access rights, software licenses, and devices
Experience with IT procurement, vendor management, and hardware/software purchasing
Setup, configure and maintain laptops, servers, and office infrastructure
Support networking, VPN, monitoring, and security systems
Maintain backups and support business continuity processes
Manage IT assets, inventory, and procurement
Troubleshoot hardware, software, network, and security issues
Work with vendors, suppliers, and ISPs
Participate in IT infrastructure and security improvement projects

What we offer

Work with top entrepreneurs and startups from Silicon Valley and EU
Become an integral part of the core team
Potential to receive equity in high-growth startups
Beautiful offices in the best locations with high-end amenities
Above average salary, benefits & medical insurance
Only the latest, modern technologies with no legacy code and management bureaucracy
Contribute to well-funded products with potential to impact millions
Tight-knit team with an inclusive and transparent culture

Fulltime

New

It Systems Engineer

Sopra Steria is deploying its Cyber Range platform at a federal customer site in...

Location

Canada , Ottawa

Salary:

Not provided

Sopra Steria

Expiration Date

Until further notice

Requirements

Active Government of Canada Top Secret (Level III) clearance — must be valid at contract start
5+ years as an IT / systems / infrastructure engineer
Strong Linux administration (RHEL/Ubuntu/Debian — CLI, networking stack, systemd, virtualization)
Solid networking fundamentals (VLANs, routing, firewalls, VPN, packet capture/troubleshooting)
Comfortable with virtualization / hypervisors (VMware, KVM, or Proxmox)
Able to work independently on-site, document clearly, and escalate appropriately
working English is mandatory

Job Responsibility

Phase 1 — Training & Installation: Remote or on-site training, rack-and-stack, network integration, OS/hypervisor setup, deployment of the Cyber Range platform, loading and validation of training scenarios, handover documentation, customer acceptance
Phase 2 — L1 support (~20 hrs/month for 36 months): first-line technical support, incident triage, basic troubleshooting, scenario resets, minor configuration changes, coordination with Sopra Steria L2/L3 remote teams, periodic health checks

What we offer

Competitive compensation including a strong base salary and annual performance bonus
comprehensive, fully covered benefits package: virtual healthcare, life insurance, long-term disability, health, dental, and vision coverage, a health spending account
Sopra Steria covers 100% of premiums
generous paid time off, including sick leave, personal days, and 3 weeks of vacation
monthly transportation allowance
excellent learning, development, and career advancement opportunities
hybrid work environment
all equipment needed

Parttime

Network & Security Engineer

Our client are looking for an experienced, fully hands-on Level 3 engineer to st...

Location

United Kingdom , Didcot

Salary:

Not provided

PLANET RECRUITMENT SERVICES LTD

Expiration Date

Until further notice

Requirements

CCNP Routing & Switching / Enterprise (current or expired with demonstrable expert-level knowledge)
Strong hands-on experience with Cisco ISE deployment, policy configuration, and troubleshooting
Proven experience administering Cisco Secure Email / IronPort (ESA/SMA)
Solid working knowledge of enterprise firewall management (Cisco ASA, Firepower/FTD, or comparable)
Experience with Cisco SD-WAN (Viptela) architecture, including vManage operations and C8000-series router onboarding
ENSDWI trained or demonstrably operating at that level across SD-WAN, security, and wireless integration
Comfortable with physical infrastructure work: racking, stacking, copper/fibre patching, and cabinet standards
Windows Server patching and administration experience
Methodical approach to change management and documentation
Willing to work on-site at Milton Park on a weekend or flexible shift pattern as outlined above

Job Responsibility

Configure, deploy, and troubleshoot campus and data-centre 100Gbps switching
Execute network switch rollouts including hardware racking, cabling to standard, patch-panel termination, and fibre patching
Perform structured cabinet clean-ups: re-patching copper and fibre runs, labelling, cable management, and documentation updates
Support and maintain the eBGP routing fabric across multiple sites
Configure and monitor QoS profiles for mixed multigigabit, 10G/100G, and uplink interfaces
Fast track our implementation of a 5 node Cisco Identity Services Engine (ISE) build for 802.1X, RADIUS, MAB, and posture policy enforcement
Manage Cisco Secure Email (formerly IronPort/ESA) including message tracking, content filters, outbreak filters, DLP policies, and quarantine management
Support enterprise firewall platforms including rule-set changes, tunnel maintenance, and policy audits
Support and maintain Cisco SD-WAN (vManage/vSmart/vBond) fabric, including device onboarding, template management, and policy configuration
Assist with Cloud OnRamp for Multicloud connectivity (AWS / Azure), including gateway controller health checks and tunnel monitoring

Fulltime

Network Engineer

My client, an Elite Trading firm are seeking a Network Engineer to join their te...

Location

United States , New York

Salary:

150000.00 - 250000.00 USD / Year

Hunter Bond

Expiration Date

Until further notice

Requirements

3-4 years of Network experience, ideally in a similar role
Strong knowledge of Cisco / Arista
Some Linux experience
Multicast experience highly desirable (PIM, IGMP etc.)
BGP / OSPF experience
Experience within VXLAN / EVPN overlay tech
Virtualisation experience (VMware, KVM, Proxmox etc.)
VPN configuration
Network automation experience useful (Python, Ansible)
Experience working within AWS, GCP or Azure useful

Job Responsibility

Troubleshoot, Engineer and optimise the HFT network
Designing cloud based integrations
Managing market connectivity
Managing Data Center implementations
Configuration reviews and audits

What we offer

Bonus

Fulltime

Systems Engineer

We are looking for a skilled Systems Engineer to join our team in Milwaukee, Wis...

Location

United States , Milwaukee

Salary:

Not provided

Robert Half

Expiration Date

Until further notice

Requirements

At least 5 years of experience working in a Windows-based environment with hands-on expertise in Microsoft technologies, including Exchange and Windows Server
Proficiency in managing Active Directory and Azure Active Directory
Demonstrated experience with Fortinet firewalls and data center environments
Familiarity with virtualization platforms like ProxMox and other similar technologies
Strong knowledge of Microsoft Azure administration and support
Hands-on experience with SQL Server and other database systems
Exposure to Linux operating systems and virtual desktop infrastructure (VDI) solutions
Proven ability to design and build reliable, scalable IT systems

Job Responsibility

Design, configure, and maintain enterprise systems, including on-premises applications, file servers, and database systems
Administer platforms that host client-facing applications, including managing domain names, certificates, and monitoring web application performance
Lead IT projects aligned with organizational goals, focusing on cost-effective and scalable solutions
Respond to system outages and alerts, providing timely resolution to restore operations
Provide third-tier technical support for network and end-user issues as needed
Enhance and support a hybrid infrastructure that integrates on-premises systems with Microsoft Azure
Assist with implementing and managing virtualization solutions, such as ProxMox, while leveraging Microsoft-based systems as needed
Collaborate with senior IT leadership to evaluate and implement thoughtful system changes that align with business objectives

What we offer

medical, vision, dental, and life and disability insurance
eligible to enroll in our company 401(k) plan

Fulltime

Level 3 Linux Administrator

Ultahost is looking for a skilled Linux System Administrator (L3) to join our te...

Location

Salary:

Not provided

UltaHost

Expiration Date

Until further notice

Requirements

3+ years of experience in Linux server administration (hosting industry preferred)
1–2 years of hands-on experience with Proxmox virtualization
Strong knowledge of web hosting stack: Apache/Nginx, MySQL, PHP, DNS, email servers
Experience with WordPress, SSL setup, domain configuration, and LiteSpeed tuning
Comfortable with command-line tools and common Linux distributions (Ubuntu, CentOS, Debian)
Ability to troubleshoot under pressure and communicate solutions clearly

Job Responsibility

Manage and resolve advanced support tickets related to Linux hosting environments
Troubleshoot and fix issues with WordPress, LiteSpeed, cPanel, and general server performance
Handle Proxmox-related tasks including VPS management, container troubleshooting, and cluster maintenance (1–2 years experience required)
Perform daily tasks such as SSL installations, domain pointing, DNS adjustments, email configuration, and user access controls
Manage server backups, migrations, and system recovery procedures
Ensure ticket response SLAs are met and escalate when needed
Work with other engineers and teams to improve knowledge base and automation processes

What we offer

Work in a high-performance technical team serving a global client base
Remote flexibility and 24/7 team collaboration
Career growth opportunities into infrastructure, DevOps, or cloud roles
Competitive compensation and long-term stability

Fulltime

Senior Systems Engineer

We're looking for a Senior Systems Engineer who will own the compute, storage, a...

Location

Kenya , Nairobi, Mombasa

Salary:

Not provided

Talent Safari

Expiration Date

Until further notice

Requirements

5+ years in systems engineering or infrastructure roles
Strong Linux administration (we run Debian/Ubuntu)
Kubernetes administration—deploying, scaling, and troubleshooting clusters
Deep experience with PostgreSQL and/or MySQL—query optimization, replication, clustering, backup strategies
Virtualization and bare-metal provisioning at scale
Proficiency with network troubleshooting (tcpdump, Wireshark)
Infrastructure-as-code experience (Ansible, Terraform, or similar)
Scripting in Python or Bash

Job Responsibility

Design and deploy virtualization platforms (Proxmox, KVM) across distributed PoPs
Manage Kubernetes clusters for platform services and microservices deployments
Architect storage systems (Ceph, ZFS, TrueNAS) for network telemetry, logs, and operational data
Build and maintain AAA infrastructure (FreeRADIUS backed by Percona MySQL cluster) supporting thousands of concurrent subscribers
Implement core services: DNS, NTP, syslog, DHCP, IPAM
Deploy and optimize time-series databases (TimescaleDB, InfluxDB) for network metrics at scale
Design data pipelines that feed AI/ML models for network automation
Implement backup, replication, and disaster recovery strategies
Design unified data architectures that bridge physical infrastructure (fiber, devices, PoPs), logical network state (IP allocations, routing, VLANs), and operational telemetry into coherent, queryable systems
Build data pipelines that correlate network events with billing and SLA compensation workflows

What we offer

Competitive salary
Equity in a mission-driven, investor-backed company
Private health and wellness benefits
High ownership and direct impact on how millions connect to the internet

Fulltime

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Linux & Proxmox Engineer

Job Description

Job Responsibility

Requirements

What we offer

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