System Admin Jobs

I need the official open-source Java backed of our project deployed, configured, and ready for continuous delivery. The source code is stable; what’s missing is a production-grade environment that handles build, test, and roll-out with minimal manual touch points. Here is the flow I have in mind: 1. Hybrid database approach Distributed Cluster (3 VPS server) 2. Containerize the application with Docker and automate builds via Maven or Gradle. 3. Primary Databases for Chat History Cassandra (NoSQL) 4. Secondary Databases PostgreSQL (for users Metadata) on the codebase’s data model. 5. Redis : Presence/Session 6. Backed Language: Spring Boot Java 21/25 with RabbitMQ,and Maven or Gradle configuratio 7. Real-time: WebSockets for bidirectional communication 8. also preferred ...

I need a skilled network engineer to spend one full day at my client’s office acting as our hands-on field resource while my remote team drives the configuration work. Your focus will be the physical layer: • Rack and securely mount the new servers, switches, and firewalls exactly as outlined in our build guide. • Dress network and power cabling so everything is neat, labeled, and easy to trace. • Power up each device, connect the console or management interfaces, and confirm our remote team can reach them. • Run quick health checks—simple pings, basic connectivity tests, and a printer test page—to verify the environment is live. • Make sure every desktop and laptop joins the network without issues and that all printers can produce a clea...

I need a reliable, experienced Network Engineer to be my hands on the ground for a full working day at our client’s office. My remote team will handle all configuration; your role is purely physical deployment, basic testing, and real-time feedback so we can finish the build in one visit. You will arrive with the step-by-step build guide already in hand, rack and mount the servers, switches, and firewalls, dress the power and network cabling neatly, attach console or management leads, then power everything up so we can start configuring from afar. While we work remotely, you will run quick ping and connectivity checks, confirm that each desktop or laptop grabs an IP and reaches the internet, and send a printer test page to be sure the print queue is alive. Deliverables (end of day)...

I need a redesign the way I reach an on-prem Windows Server hosted in the United States from India. The goal is simple: have my thick-client application open as if it were local, with its required drive mapping intact, and without the painful lag I experience today through a traditional VPN + Remote Desktop session into a Hyper-V VM. I have chosen Microsoft Azure as the platform and may involve options such as Azure Virtual Desktop, Azure VPN Gateway, ExpressRoute, or any combination you feel will best deliver the lowest possible round-trip latency while preserving security. I am open to your architectural recommendations provided they keep the mapped drive requirement functional and transparent to the application. When you respond, focus on your experience delivering similar low-latency...

I have a fresh Proxmox installation that now needs to be turned into a production-ready virtualization cluster. The end goal is straightforward: host several public-facing services while keeping administration simple and repeatable. Scope of work • Provision 4-6 Ubuntu-based guests (mix of KVM VMs or LXC containers—whichever fits best per role). • Produce three reusable gold images: Web server template, Database server template, and Mail server template. Each must boot cleanly, auto-configure the network via DHCP or static values I supply, and be ready for apt updates. • Expose HTTP/HTTPS and SSH to the internet. You may rely on Proxmox built-in firewall, iptables/nftables, or an nginx/HAProxy reverse proxy—whichever you judge safest. All inbound rules sho...

I’m building a web application that turns a plain-English prompt into a working Ansible playbook for network devices—initially focused on FortiGate firewalls and, later, routers and switches. Here’s the flow I need you to implement end-to-end: 1. A user lands on the site, logs in with a simple username-and-password form, and types a request such as “open port 443 on HQ FortiGate and back up the config.” 2. Your NLP/ML layer interprets that sentence and autogenerates a complete, syntactically correct Ansible script or playbook. 3. The script is returned to the frontend for the user to review. 4. The UI then prompts the user to confirm or edit the target hosts, which can be pulled either from an inventory file on disk or a database table—whichever...

I'm looking for someone who understands how to configure a GL-iNet GL-MT6000 (Flip 2) router to connect to and work through a foreign VPN. I need to understand what settings to use, which provider/hosting provider to use, and which package to choose to connect the VPN to the router. I also need to understand how to resolve potential leaks, stress testing, and so on. After connecting the router and installing the VPN, I need to make sure there are no issues that could reveal my current location, and that everything works reliably.

I need help getting a fresh Proxmox installation ready to host between four and ten Linux-based virtual machines. The physical server already has power and network in place; what’s missing is a clean, production-ready configuration. Here’s what I expect: • Install and update the latest stable Proxmox VE • Create 4–10 Linux VMs (Ubuntu preferred unless you suggest a better fit) with optimized CPU, RAM and storage allocations • Configure secure networking so each VM can reach the internet while remaining isolated from one another, and set up a reliable tunnel (WireGuard is ideal) for remote administration • Apply basic hardening: user roles, firewall rules, backups to an external target, and monitoring alerts • Provide concise documentatio...

I'm seeking an experienced DevOps engineer to set up AWS for my e-commerce application. The project involves initial setup only. Key Tasks: - Server Configuration on Amazon Linux - Database Setup - Security and Monitoring Setup Ideal Skills and Experience: - Strong expertise in AWS services - Experience with Amazon Linux - Knowledge in database management and security protocols - DevOps tools familiarity (e.g., Terraform, Ansible) - E-commerce application deployment experience is a plus Looking forward to your proposals!

I'm looking for an experienced Minecraft server setup specialist to create a robust server for more than 50 players. The server should include the following custom modes: oneblock, realm, and lifesteal. Key Requirements: - Setup of oneblock, realm, and lifesteal modes - Configuration for over 50 concurrent players - Ensure server stability and performance - Provide guidance on server management Ideal Skills and Experience: - Expertise in Minecraft server setup and configuration - Experience with custom game modes - Knowledge of server optimization for high player counts - Strong problem-solving skills and reliability Please share your relevant experience and approach to this project.

I’m looking to partner with an experienced IT consulting team that can take ownership of my organisation’s core infrastructure. The immediate priorities are a clean network setup and reliable, ongoing server maintenance. Here’s what I need: • Assess our current topology, then design and implement an optimised network architecture (switches, routers, firewall, VLANs, redundancy, basic security hardening). • Review existing physical and virtual servers, carry out any required remediation, and establish a proactive maintenance schedule that keeps performance and uptime high. • Produce clear documentation and brief knowledge-transfer sessions so my in-house staff can follow day-to-day procedures. If your company has a proven track record in network ...

deploying the official open-source backend components and integrating them with various third-party services for full functionality. • mainly our requirements our own infrastructure Self-Hosted with Custom Instance public rebranded messaging app. • Only people who have previously studied and worked on production-style Signal server architecture and structure should communicate • Those who have not previously studied and worked on production-style Signal server architecture and structure should not submit bid proposals. • The official source code is open-source and available on GitHub. • You only need to deploy and configure the Signal server only. The process requires significant technical expertise in server management, Java, database administrat...

I’m spinning up a fresh Ubuntu VPS and need it turned into a rock-solid hub for my IoT fleet. The box must host two main services—Mosquitto for messaging and a Mender server for over-the-air firmware updates—without compromising security, performance, or future maintainability. Here’s the picture • Mosquitto will run behind TLS with mutual authentication. I’ll give you the root CA; you generate and stage broker and client certs so the standard mosquitto_pub / mosquitto_sub TLS test passes. • Mender must be installed in its open-source edition, set to distribute only signed artifacts. I already sign firmware; the server simply has to enforce signature checking before rollout. • fail2ban on the host should block any source IP after three ba...

I’m running a Debian server and need the system language switched from its current setting to Ko-kr. Your task is to: • Reconfigure the server’s locale so all system messages, man pages, and default environment variables use Ko-kr. • Verify the change persists after a reboot and is applied for both root and regular SSH sessions. • Provide a brief set of commands or a script so I can repeat the process on future servers if needed. Please work directly on Debian, avoid disrupting running services, and share a short confirmation (e.g., output of locale and localectl) once the change is complete.

I have a GPU instance with RTX 4090 and need to configure a setup for create videos

I have a fresh Ubuntu 22.04 VPS ready and I want a fully working Open Tibia server running version 13.x or newer. I am happy to go with either Canary or TFS—whichever you feel will get us to a stable, live server fastest. My own attempts stalled mainly at the client-connection stage, so the critical piece for me is having at least one client (official Tibia or OTClient, I am flexible) connect reliably to the server once it is online. What I need from you: • Compile or install the chosen engine on the VPS, configure it, and verify it boots without errors. • Walk me through the minimal config changes so I understand what was done. • Provide a working client package—or clear instructions for obtaining and patching one—that logs straight into the serve...

I’m looking for an online tutor based in India who can guide me through intermediate-level administration of both Linux and Windows Server environments. On the Linux side I want practical, session-based coaching in system administration, security and firewall management, and shell scripting. For Windows Server, the focus should be Active Directory management, server configuration and deployment, plus security and patch management. Each topic needs to be demonstrated live, with time for me to replicate the steps on my own lab machines during or immediately after the call. We can meet on Zoom or Google Meet for 2–3 hours a week, preferably evenings or weekends. Deliverables • A structured lesson plan that maps out the sequence of sessions • Recordings or sess...

We need an expert Odoo + DevOps engineer to migrate our existing Odoo 18 environment from to a Quebec-based private cloud. This project involves strict compliance, hardened security, and zero-data-loss migration. What You’ll Do Provision production & staging servers in Quebec Harden Ubuntu (firewall, Fail2ban, SSH, auto security updates) Deploy Odoo 18 Enterprise with Nginx, SSL/TLS, secure headers Configure PostgreSQL (encryption, tuning) Migrate database, filestore, and ~13 modules from Ensure full functionality across Accounting, CRM, HR, Sales, Inventory, Website, Manufacturing, etc. Implement encrypted daily backups (30-day retention) Provide DR and technical documentation Support testing and final production cutover Experience working in environments aligned with: Law...

Hi, I have a domain for which I am using hostgator as a hosting provider, I want to change the hosting to my dedicated server. My domain registrar updated the SOA to my server IP but the domain is not resolving. Need urgent help. Thanks VIdhya Sagar dixit

I operate two offices and I purchased two UniFi UDM Pro, and I want them linked so that staff can reach internal resources from either location as if they were on the same LAN or to work remotely (VPN access). Nothing is in place yet, so the full security stack must be designed and deployed from scratch. Scope of work • Build and test a site-to-site VPN between the two UDM Pros for seamless remote access. • Create granular firewall rules that allow only the traffic we specify while blocking everything else. • Enable and tune UniFi’s intrusion-detection/prevention features to catch unwanted activity without flooding us with false alarms. • Document every setting—screenshots or exported configs—so I can replicate or restore the setup if needed. ...

I’m running Ubuntu Server 22.04 on a Hostinger VPS and need a clean, dependable way to spin up Cal.com. Docker is not installed yet, so the first step is to get the latest Docker Engine and Docker Compose up and running with their default settings. Once Docker is active, I’d like you to: • Pull the official image (or build from source if that is the current best practice). • Launch the container so it auto-restarts and survives server reboots. • Expose the required ports and, if it simplifies access, wire it to an Nginx reverse proxy so the calendar sits behind my existing domain or a sub-domain. • Hand over the exact commands, configuration files, and environment variables you used, commented clearly so I can reproduce or tweak them later. I&rsquo...

I need an experienced network engineer to spend one full day at a data-center site acting as my hands-on field presence while my remote team drives the configuration. Your focus will be purely physical: racking and mounting Cisco, HP, and Dell switches, servers, and firewalls; dressing both power and copper/fiber runs neatly; then powering everything up so we can reach it remotely via the console or management ports. Once devices are live, you’ll run quick-hit checks—basic pings, uplink and printer connectivity, plus a test print from each printer—to be sure the new gear and the existing workstations all join the network without surprises. I will supply a clear, step-by-step build guide and remain online to answer questions in real time. Deliverables: • All specifi...

I need a Godaddy-issued SSL certificate installed and fully configured on my Windows Server 2019 VPS that is also hosted with Godaddy. The certificate has already been purchased; what’s left is generating the CSR (if you prefer, I can supply one), importing the returned certs, installing the intermediate chain, and binding everything to the correct IIS site so the domain loads only over HTTPS. Once the certificate is in place, please force-redirect all HTTP traffic to HTTPS, check for mixed-content warnings, and run an SSL Labs test to confirm an “A” rating or better. Deliverables • CSR generation (or validation of my existing CSR) • SSL certificate and chain correctly installed in IIS • HTTP-to-HTTPS redirect enabled and verified • Final rep...

I'm seeking a skilled technician to replace a UPS with a new APC UPS in an office network environment. Currently, we're facing battery failure issues. Key Tasks: - Assess the existing UPS setup - Replace the faulty battery - Test and ensure proper functionality post-repair Ideal Skills and Experience: - Experience with APC UPS systems - Background in office network environments - Strong troubleshooting skills

We are looking for an experienced DevOps / GitLab CI engineer to design and implement a robust CI/CD setup for a Docker-based application consisting of a backend and a frontend, both living in the same GitLab repository. The goal of this project is to establish a clean, developer-friendly workflow that supports: Automatic internal test deployments (review apps) for feature branches Automated production deployments to a public VPS when code is merged to main This setup should follow GitLab CI best practices, especially GitLab Environments and Review Apps, and be simple for developers to use without requiring manual server access

İş yerimde kullanacağımız Local Area Network (LAN) altyapısını sıfırdan kurup yapılandıracak deneyimli bir uzmana ihtiyacım var. Amacım, güvenilir, hızlı ve ölçeklenebilir bir ağ tasarımı elde etmek. Beklentilerim • Ağ topolojisinin planlanması ve cihaz önerisi • Switch, router ve kablolama dâhil donanım konfigürasyonu • IP adresleme, VLAN ve temel güvenlik ayarlarının yapılması • Testler ve dokümantasyon: cihaz listesi, bağlantı şeması, konfigürasyon yedekleri Zaman konusunda esneğim; projenin doğru ve sağlam tamamlanması önceliğimdir. RS Holding ve Cevahir yapı gibi firmaların sistem ve network güvenliğini sağladım.

Necesito ayuda para configurar el acceso de AWS S3 en mi aplicación Plane que está desplegada en un servidor Hetzner con arquitectura ARM64 (aarch64). Contexto: Tengo una aplicación Plane (self-hosted) corriendo en un servidor ARM64 Tengo un bucket S3 en AWS (región eu-south-2) llamado "coolify-tools" La aplicación muestra el error: "Access to the bucket 'coolify-tools' is forbidden. Check permissions" Ya tengo configurados IAM users, roles, policies y un Trust Anchor en IAM Roles Anywhere Lo que necesito: Diagnosticar por qué Plane no puede acceder al bucket S3 Configurar correctamente las credenciales de AWS en Plane (Access Keys o IAM Roles Anywhere) Verificar que los permisos de IAM están correctame...

Deseo contar con un servidor de correo Carbonio Community funcionando sobre Ubuntu. El VPS ya está provisionado con una instalación limpia de Linux; tu misión es: • Instalar la última versión estable de Carbonio Community, dejarla operativa con los servicios necesarios (webmail, calendarios, contactos, ActiveSync si corresponde) y crear un dominio de prueba para verificar el envío y la recepción. • Aplicar una configuración básica —puertos, certificados TLS, ajustes de DNS como SPF, DKIM y DMARC— para que el correo se entregue sin problemas de reputación. • Endurecer la instalación con foco específico en la seguridad del servidor de correo: reglas de firewall acordes, protecci&...

Necesito implementar encriptación de datos en un servidor Linux para proteger exclusivamente archivos y documentos. Mi objetivo es contar con una solución sencilla y funcional que deje los ficheros cifrados en reposo sin complicar el resto del sistema. Lo que espero recibir: • Revisión rápida del entorno (distro y versión) y selección de la herramienta adecuada — por ejemplo LUKS, GPG o eCryptfs. • Guía paso a paso (o script básico) para instalarla, configurarla y probarla. • Instrucciones claras para añadir nuevos archivos al volumen/contenedor cifrado y para realizar copias de seguridad igualmente protegidas. • Documento breve con comandos clave y cómo revertir cambios si fuera ne...