System Administration Jobs

System Administration is a highly specialized field in the Information Technology (IT) sector. It involves a variety of tasks related to the maintenance, configuration, and reliable operation of computer systems, such as networks and core services. System Administrators not only manage the daily operations of these systems, but also have the responsibility of ensuring these systems are secure, protected from malicious attacks and software vulnerabilities.

A System Administrator is capable of optimizing system operations to ensure maximum uptime and efficiency using solutions like automation. This can help organizations save on costs and resources. An expert System Administrator can also identify areas where additional system resources are needed, create disaster recovery plans, automate processes, reduce risks, provide technical advice and implement overall security policies.

Some areas that should be addressed regularly by System Administrators include information security measures, disaster recovery solutions and infrastructure planning. All of this helps ensure that an organization's mission-critical systems remain up-and-running no matter what the situation may be.

Here's some projects that our expert System Administrator made real:

  • Setting up a secure backup process for companies
  • Troubleshooting login issues for laptops
  • Installing software for server control panels
  • Managing complex server configurations
  • Automating systems setup and configuration
  • Creating content for social media accounts
  • Enhancing availability, managing traffic and protecting from disasters
  • Debugging applications on Exchange Server
  • Scheduling data flows using SQL Server Agent
  • Restoring access to webpages

System Administration is an important job that requires expertise to master. With its complexity comes huge responsibilities - handling a controlled computing environment of a company or organization without compromising data security. If you have a project or idea that you want to be handled by an experienced System Administrator, Freelancer.com has you covered on finding one that meets your requirements. Post your project now and hire your own System Administrator today!

From 20,551 reviews, clients rate our System Administrators 4.91 out of 5 stars.
Hire System Administrators

System Administration is a highly specialized field in the Information Technology (IT) sector. It involves a variety of tasks related to the maintenance, configuration, and reliable operation of computer systems, such as networks and core services. System Administrators not only manage the daily operations of these systems, but also have the responsibility of ensuring these systems are secure, protected from malicious attacks and software vulnerabilities.

A System Administrator is capable of optimizing system operations to ensure maximum uptime and efficiency using solutions like automation. This can help organizations save on costs and resources. An expert System Administrator can also identify areas where additional system resources are needed, create disaster recovery plans, automate processes, reduce risks, provide technical advice and implement overall security policies.

Some areas that should be addressed regularly by System Administrators include information security measures, disaster recovery solutions and infrastructure planning. All of this helps ensure that an organization's mission-critical systems remain up-and-running no matter what the situation may be.

Here's some projects that our expert System Administrator made real:

  • Setting up a secure backup process for companies
  • Troubleshooting login issues for laptops
  • Installing software for server control panels
  • Managing complex server configurations
  • Automating systems setup and configuration
  • Creating content for social media accounts
  • Enhancing availability, managing traffic and protecting from disasters
  • Debugging applications on Exchange Server
  • Scheduling data flows using SQL Server Agent
  • Restoring access to webpages

System Administration is an important job that requires expertise to master. With its complexity comes huge responsibilities - handling a controlled computing environment of a company or organization without compromising data security. If you have a project or idea that you want to be handled by an experienced System Administrator, Freelancer.com has you covered on finding one that meets your requirements. Post your project now and hire your own System Administrator today!

From 20,551 reviews, clients rate our System Administrators 4.91 out of 5 stars.
Hire System Administrators

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    18 jobs found

    Project Overview We are looking for an experienced AI Automation / Full-Stack Developer to build a self-hosted AI Business Operating System that automates email management, CRM, sales, marketing, customer support, and business workflows. This is a long-term project with multiple milestones. Phase 1 – Infrastructure Install and configure: Debian 12 Webmin Docker & Docker Compose Nginx SSL (Let's Encrypt) PostgreSQL PGVector Redis Python Node.js Git n8n Ollama Claude API OpenAI API Automated backups Monitoring Phase 2 – AI Knowledge Base Create a searchable AI knowledge base that can ingest: Websites PDFs Word documents Excel files SOPs Product catalogs Pricing Technical manuals Features: OCR Document parsing Chunking Metadata Embeddings Version control PostgreS...

    $118 Average bid
    $118 Avg Bid
    67 bids

    I need assistance setting up a VPN and a Windows-based file server, along with creating an information security plan. Key Tasks: - VPN Setup: Configure VPN server and client, and manage user access control. - File Server Setup: Set up a Windows file server. - Security Plan: Develop a robust information security plan. Ideal Skills: - Experience with VPN and Windows file servers. - Strong knowledge in information security. - Familiarity with user access control and configuration tasks.

    $2000 Average bid
    $2000 Avg Bid
    42 bids

    I have a single Google Cloud VM that serves both my application (Nginx) and its database. I’d like to harden it by adding a cloud-native firewall layer and turning on full traffic visibility. Here’s the scope: • Use GCP’s built-in VPC firewall (no third-party appliances) to create the rule set. • Configure it so that every ingress and egress packet is logged to Cloud Logging; I want to be able to audit both directions at any time. • Rules must allow normal web, SSH and internal DB traffic but block anything unnecessary, following least-privilege principles. • Deliver a brief summary or screenshot set that shows the rules, their priorities, and where the logs are flowing so I can replicate the setup later if needed. If you’ve already done...

    $123 Average bid
    $123 Avg Bid
    54 bids

    I need a seasoned IVANTI engineer to take my IT Service Management and IT Asset Management environment from out-of-the-box to truly optimized. The immediate scope covers three key modules: • Incident Management • Asset Management • Change Management Each must be configured so that day-to-day operations run with noticeably improved efficiency, our data is captured and reported more accurately, and the overall user experience—both for agents and requesters—feels streamlined and intuitive. Here is what I expect once the work is complete: • Workflows, forms, fields, and dashboards tailored to our processes without breaking future upgrade paths. • Automation rules that eliminate repetitive touches and surface the right information at the right mo...

    $219 Average bid
    $219 Avg Bid
    4 bids

    I need an experienced IT manager to assist with a hybrid network setup for my church. Key Responsibilities: - Setup and maintain a hybrid network (wired and wireless) - Install and update necessary software - Provide user support and training Devices to connect include: - Computers and laptops - Mobile devices and tablets - Printers and other peripherals Ideal Skills and Experience: - IT management experience - Network setup and maintenance expertise - Proficient in software installation - Strong training and support skills Looking forward to your bids!

    $21 / hr Average bid
    $21 / hr Avg Bid
    12 bids

    I need a small program that quietly runs on our server and keeps the freight information on our public site completely in-sync with a local source folder. Every ten minutes it should: • scan the designated directory, • upload any new or changed text files, • remove any text files that were deleted from the directory, so the web content always mirrors what we have internally. The directory path will be configurable; everything in that folder is considered authoritative. Reliability and low overhead are far more important than fancy visuals, so feel free to use a lightweight approach—Python with watchdog and an FTP/SFTP library, a PHP cron job, a Node script, or another solution you prefer—as long as it can run unattended on a typical Linux hosting environ...

    $421 Average bid
    $421 Avg Bid
    267 bids
    SQL Server & Acronis Setup
    2 days left
    Verified

    I need a hands-on IT technician who can come to our office in Singapore and carry out a clean installation and first-run configuration of two pieces of software: Microsoft SQL Server and Acronis (backup suite) on a freshly prepared Windows machine. Here is what the visit will cover: • Install the required edition of SQL Server, apply the latest cumulative updates, create an initial user database, and confirm network connectivity for remote clients. • Install Acronis, register the licence, set up the first full system image, and schedule an automated daily incremental backup to our NAS. • Verify that both products start with Windows and write a short report summarising versions, settings, and any recommendations. All media, licences, and local admin access will be pr...

    $43 Average bid
    $43 Avg Bid
    23 bids

    I have just completed an in-place migration of Sonatype Nexus Repository Manager from 3.70 to 3.93. The service is online and the UI loads normally, yet every developer now receives “permission denied” messages when they try to pull from or publish to our Maven, npm, and Docker repositories. At this point I am not entirely sure whether the problem lies in role mappings, privilege inheritance, or another post-upgrade quirk, so I need someone with deep Nexus experience to jump in, diagnose the root cause, and restore seamless access. What I expect you to do: • Review and correct all roles, privileges, and repository targets so authenticated users can reach the appropriate Maven, npm, and Docker endpoints. • Validate access locally from a clean workstation by per...

    $17 Average bid
    $17 Avg Bid
    9 bids

    Over the past few days my Grafana + Prometheus stack has begun to churn far more CPU than usual, the web UI feels sluggish, and the graphs occasionally show empty gaps. I need a seasoned Grafana / Prometheus troubleshooter to dig in, pinpoint the bottleneck, and restore smooth, complete monitoring. Here is what I am after: • Diagnose and eliminate the recent CPU spike on the Grafana server (Ubuntu, Prometheus scraping multiple node-exporters). • Find out why some series disappear briefly and correct the root cause—whether that is scrape errors, query load, retention settings, or anything else you uncover. • Build a clean, focused dashboard that shows only the essentials I care about: CPU usage, Memory usage, Disk usage, Uptime, Bandwidth In/Out, and Network Speed...

    $119 Average bid
    $119 Avg Bid
    47 bids

    I need an experienced IT consultant to spend a single full day with my team in Shillong to get our new system-automation platform up and running and make sure staff can use it confidently before you leave. Scope of work • Install the chosen system-automation tool on two Windows servers and five client machines. • Configure basic automation workflows that demonstrate software-deployment, patch management, and scheduled maintenance tasks. • Run an on-site training session (max 10 people) covering the dashboard, job creation, reporting, and basic troubleshooting. • Leave us with a concise step-by-step guide and the configuration backup so we can replicate or restore settings later. Acceptance criteria • All endpoints are visible and manageable from the con...

    $76 Average bid
    $76 Avg Bid
    11 bids

    I need help connecting Konica Minolta c258 printer to my Windows computer using a wired connection. Requirements: - Experience with Windows operating systems - Familiarity with all-in-one printer setups - Ability to troubleshoot connection issues Ideal Skills: - IT support background - Printer installation expertise - Problem-solving skills

    $115 Average bid
    $115 Avg Bid
    28 bids

    I need assistance disabling Virtualization Based Security (VBS) on a Windows 11 system. This is necessary to resolve compatibility issues with certain applications. Requirements: - Experience with Windows 11 system configurations - Knowledge of Virtualization Based Security and its implications - Ability to ensure that the process does not compromise system security Ideal Skills: - Proficient in Windows security settings - Previous experience with VBS-related tasks - Strong understanding of system compatibility issues

    $24 Average bid
    $24 Avg Bid
    19 bids
    Install SSL on IIS
    2 hours left
    Verified

    I need help completing the last step of securing a Windows Server that hosts a single website on IIS. The certificate authority has already issued a single-domain SSL and I have all related files (.crt/.cer, private key, and intermediate chain) ready to provide. Your task is to import the certificate, configure the HTTPS binding in IIS, install any required intermediate certificates, and confirm that the site serves cleanly over HTTPS. If a simple HTTP-to-HTTPS redirect is advisable, please set that up as well. We can run the process together over a brief remote session (AnyDesk, Zoom, or similar) so credentials stay on my end. Acceptance criteria • The site loads over https without browser warnings and receives a clean report on SSL Labs (no hostname or chain errors). Let me kno...

    $23 Average bid
    $23 Avg Bid
    49 bids
    Dify Installation on Ubuntu
    6 days left
    Verified

    He instalado dify en vps pero no rfeconoce qwe 3.7 max por que noexiste streaming necesito que lo rfeconozco. Adiconalnodo del conocimiento elmodello reconoca y no gtome la parte externa sino los documentos agregadps en la base del conocimiento no poago por hora pago por trabajo

    $128 Average bid
    $128 Avg Bid
    24 bids

    Utilizamos Dynatrace únicamente en Producción y necesito una revisión experta que cubra, de forma exhaustiva, el monitoreo de rendimiento, la detección de anomalías y el uso de recursos. Quiero saber qué estamos haciendo bien, qué configuraciones están limitando la visibilidad y en qué puntos podemos optimizar licencias y recursos. Entregables esperados: • Informe avanzado con métricas detalladas, capturas clave y explicación de cada hallazgo. • Lista priorizada de recomendaciones: quick wins, mejoras a medio plazo y acciones estratégicas. • Roadmap de implementación con dependencias, esfuerzo y estimación de impacto. • Sesión remota para presentar conclusione...

    $41 / hr Average bid
    $41 / hr Avg Bid
    7 bids

    Despliegue de aplicación web estática en VPS con HTTPS y protección de acceso. Descripción del proyecto Busco un profesional con experiencia en administración de servidores Linux y despliegue de sitios web estáticos para publicar una aplicación ya desarrollada en un servidor privado (VPS). La aplicación ya está terminada y funcionando. No se requiere desarrollo adicional ni creación de backend en el servidor. El trabajo consiste en configurar el VPS, desplegar los archivos estáticos, configurar el dominio y HTTPS, y dejar una capa de protección para el panel de administración. Importante: entregaré una guía de despliegue paso a paso ya preparada, incluyendo el Caddyfile con la prote...

    $131 Average bid
    $131 Avg Bid
    61 bids

    Necesito a una persona con experiencia demostrable en Moodle que se encargue de dar soporte y mantenimiento continuo a mi plataforma. El trabajo debe comenzar lo antes posible, ya que actualmente tengo algunas incidencias que requieren atención urgente. Busco ayuda específicamente en: • Resolución de errores y caídas del sitio. • Aplicación de actualizaciones menores y mayores sin afectar a los usuarios activos. • Optimización de rendimiento en base de datos, caché y configuraciones del servidor. • Revisión periódica de logs y parches de seguridad. • Documentación breve de los cambios aplicados para futuras referencias. Para postularte, por favor destaca tu experiencia previa en proyect...

    $410 Average bid
    $410 Avg Bid
    121 bids

    Saya sedang mencari seorang profesional di bidang Teknologi Informasi yang berpengalaman sebagai Admin Jaringan. Fokus utama saya adalah kenyamanan dan kestabilan sistem, jadi saya membutuhkan seseorang yang dapat: • Memantau dan memelihara infrastruktur jaringan (router, switch, firewall) agar tetap andal dan aman. • Menangani troubleshooting ketika terjadi gangguan koneksi, latency, ataupun isu keamanan. • Menyusun dokumentasi konfigurasi jaringan serta prosedur pemulihan (backup & restore) yang jelas. • Memberikan rekomendasi peningkatan performa dan keamanan sesuai best practice. Saya menghargai komunikasi yang responsif dan solusi yang praktis. Beri tahu pengalaman Anda menangani jaringan skala kecil-menengah, tool yang biasa digunakan (mis. MikroTik,...

    $490 Average bid
    $490 Avg Bid
    8 bids

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