System and Network Administrator Leasing

Last updated: November 11, 2026

Servers, networks and identity systems need constant care: patching, backups, monitoring, user and access management and fast reaction when something breaks. 360 Soft provides system administrators and network administrators from Istanbul who work remotely, on-site or in a hybrid model, during business hours or in 7/24 on-call rotations. You can add one administrator to your IT team or build an infrastructure operations team; teams range from 1 to 200+ people and a typical start is within 1–2 weeks. This page is part of our IT staff leasing services.

System and Network Administrator Leasing

Who needs a system and network administrator?

Companies without a dedicated infrastructure person, where developers or office managers handle servers and firewalls on the side.
IT teams facing a migration (on-premises to cloud, Windows Server upgrade, new firewall or SD-WAN).
Organisations that need on-call coverage outside office hours.
Businesses opening new offices or branches that need network set-up and standardisation.
Teams preparing for an audit (ISO 27001, SOC 2, PCI DSS) that need configuration and documentation work.

Scope of the role

System administration

Windows Server and Linux administration, patching and hardening
Active Directory, Entra ID, group policies and identity lifecycle
Virtualisation (VMware, Hyper-V, Proxmox) and storage
Backup, restore tests and disaster recovery procedures
Microsoft 365 / Exchange administration
Monitoring, capacity planning and documentation

Network administration

Switching, routing, VLANs and Wi-Fi
Firewall rules, VPN (site-to-site and remote access), NAC
SD-WAN and branch connectivity
Network monitoring, troubleshooting and change management
Network documentation and diagrams

Seniority matrix

Level	Profile	Typical responsibility
Mid	Several years of hands-on administration	Daily operations, patching, tickets, standard changes
Senior	Broad experience across systems and networks	Design changes, migrations, complex incidents, on-call lead
Lead / architect	Infrastructure design and governance experience	Architecture, standards, roadmap, vendor coordination

Technology and certification matrix

Area	Technologies	Relevant certifications (examples)
Microsoft	Windows Server, AD, Entra ID, Intune, M365	Microsoft Certified (Administrator, Azure)
Linux	RHEL, Ubuntu, Debian, shell scripting, Ansible	RHCSA/RHCE, LPIC
Virtualisation	VMware vSphere, Hyper-V, Proxmox	VMware VCP
Networking	Cisco, Juniper, Aruba, MikroTik, HPE	CCNA/CCNP, JNCIA
Security appliances	Fortinet, Palo Alto, Check Point, Sophos	NSE, PCNSA
Monitoring	Zabbix, PRTG, Grafana, Prometheus	Vendor-specific

Certifications are verified where relevant, but we weigh practical lab results more heavily than certificates.

Interview and lab tests

Each candidate completes a technical interview and a practical lab adapted to your stack: for example diagnosing a failed AD replication, writing firewall rules for a new service, recovering a VM from backup or tracing a routing issue between two sites. You receive the assessment notes and interview the shortlisted candidates yourself.

Lease or hire in-house?

Leasing suits migrations, peaks, on-call coverage and skills you need for months rather than years. In-house hiring suits long-term core roles when you can recruit and retain. A managed service suits organisations that prefer to buy an outcome, such as monitored infrastructure with defined response times, instead of directing people.

Working models

Remote: the administrator works from Türkiye through your VPN, VDI or bastion host, with MFA and logged access.
On-site: the administrator works at your premises when physical presence is needed.
Hybrid: on-site during onboarding or critical phases, remote in steady state.
Shifts: business hours in your time zone, extended hours or 7/24 rotation.

Process and typical timelines

Step	What happens	Typical duration
1. Requirement call	Scope, systems, tools, hours, language, location	1–2 days
2. Shortlist	Screened profiles matched to the agreed criteria	A few working days
3. Assessment	Interview and a hands-on lab	Within the first week
4. Onboarding	Accounts, access, documentation, first-week plan	Typical start in 1–2 weeks
5. Steady state	Monthly reporting and service reviews	Ongoing

KPIs and SLAs for system and network administration

Indicator	Definition	How it is used
Availability	Uptime of agreed critical services	Monthly report against target
Incident response	Time to acknowledge and start work, per priority	Defined in the SLA
Patch compliance	Share of systems patched within the agreed window	Monthly security review
Backup success and restore tests	Successful jobs and periodic restore checks	Monthly evidence
Change success rate	Changes completed without rollback or incident	Change advisory review
Documentation currency	Diagrams and runbooks updated after changes	Quarterly check

Targets are set per engagement after a review of your environment.

Factors that determine the price

Factor	Effect
Seniority and breadth	Senior profiles covering systems and networks cost more
On-call and shifts	Night, weekend and 7/24 rotation increase cost
On-site presence	Data-centre or branch work may add travel
Technology stack	Niche vendors or certifications narrow availability
Team size and duration	Longer engagements and larger teams are more efficient
Service model	Managed service adds management and SLA ownership

System and Network Administrator Leasing — overview

In-house, freelancer and outsourcing compared

Criterion	In-house hire	Freelancer	360 Soft administrator
Time to start	Often months	Fast but variable	Typically 1–2 weeks
Continuity	Depends on retention	Single point of failure	Replacement process in the contract
Coverage	Limited by headcount	Limited to one person	Shifts up to 7/24, teams up to 200+
Admin load	Recruitment, payroll, HR	Contract per person	One B2B contract
Security and IP	Your policies	Varies	NDA, IP assignment, GDPR DPA

Risks and how we mitigate them

Risk	Mitigation
Unauthorised or untracked changes	Change management, peer review, logged privileged sessions
Single administrator as bottleneck	Documentation, runbooks, backup administrator in larger teams
Over-privileged accounts	Separate admin accounts, PAM, least privilege
Knowledge loss on exit	Replacement process and documented handover

Security, GDPR/KVKK, NDA and intellectual property

The administrator signs confidentiality undertakings before access is granted and works only inside your controls: your identity provider, your logging, your approval workflows. Access follows least privilege and is revoked on offboarding. Personal data is processed only on your documented instructions.

Legal note

The engagement is a B2B service agreement with 360 Soft, which employs the specialist under Turkish labour law. The standard package includes an NDA, an assignment of intellectual property in work results to the client, and a GDPR data processing agreement (DPA) with the Standard Contractual Clauses for EU transfers or the UK IDTA/Addendum for UK transfers. Processing in Türkiye is also subject to the KVKK (Law No. 6698). Sector rules in Türkiye apply where the team operates, and local rules in your country apply as well; we recommend a review by your legal counsel.

Selection checklist

Is the scope (systems, networks, cloud) clearly defined?
Has the candidate passed a lab relevant to your stack?
Are change management and access rules agreed?
Is on-call coverage defined with response times?
Is there a written replacement process?
Are NDA, IP and GDPR DPA in place?

Illustrative scenario

Illustrative scenario. A logistics company with ten branches wants to replace ageing firewalls and standardise branch networks. It leases a senior network administrator for the design and rollout and a system administrator to take over daily server operations, so the internal IT manager can focus on the project. After the rollout, one administrator remains for operations and on-call. This example is illustrative and does not describe a specific client.

Frequently asked questions

What does a leased system administrator do?

They operate and secure your servers, identity systems, virtualisation, backups and productivity platforms, and document the environment.

What does a network administrator do?

They manage switches, routers, firewalls, VPNs and Wi-Fi, handle network changes and troubleshoot connectivity issues.

Can one person cover both systems and networks?

In smaller environments, yes. Larger environments usually need separate system and network roles.

Do you provide on-call coverage?

Yes. On-call rotations and 7/24 shifts can be arranged.

Can the administrator work remotely?

Yes. Most tasks are done remotely through secure access; on-site work is arranged when needed.

Which technologies do you cover?

Microsoft, Linux, VMware, Hyper-V, Cisco, Fortinet, Palo Alto and other common platforms; niche stacks on request.

How do you test candidates?

With a technical interview and a hands-on lab adapted to your environment, followed by your own interview.

How quickly can someone start?

A typical start is within 1–2 weeks after the profile is agreed.

What drives the price?

Seniority, breadth of skills, on-call needs, location, technology stack, duration and service model.

How is privileged access controlled?

Through separate admin accounts, least privilege, logged sessions and your change management process.

Talk to us about your team

Tell us the role, the number of people, the working model (remote, on-site or hybrid) and your target start date. We reply with a team proposal, a scope and an indicative timeline. Call or WhatsApp +90 850 335 10 87, message us on WhatsApp, email info@360-soft.com or use our contact page.

360 Soft Marketing Yazılım ve Danışmanlık Ltd. Şti. · Nidakule Ataşehir Batı, Barbaros Mah. Begonya Sk. No:1 D:2, 34746 Ataşehir/İstanbul, Türkiye.

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