The ultimate guide to hiring a web developer in 2021
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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:
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!
De 21,177 opiniones, los clientes califican nuestro System Administrators 4.9 de un total de 5 estrellas.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:
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!
De 21,177 opiniones, los clientes califican nuestro System Administrators 4.9 de un total de 5 estrellas.En nuestra correduría de seguros estamos migrando todo el flujo de voz a una PBX Yeastar P-Series (Appliance Edition) y necesito a un especialista —o empresa— que la ponga en marcha de forma llave en mano aquí en Caracas y luego brinde soporte continuo. Lo que quiero lograr • 16 usuarios iniciales del equipo comercial operando sobre la nueva central. • Gateways Yeastar GSM (serie TG) y FXO (serie TA) correctamente enlazados. • Grabación de llamadas siempre activa para auditoría de calidad. • Integración nativa con HubSpot CRM Enterprise: registro automático de llamadas, click-to-call e identificación inmediata de contactos. Lo que valoro • Experiencia avanzada con la serie P comprobable en insta...
Debo habilitar la firma DKIM en mi servidor de correo Zimbra Open Source Edition. Ya dispongo de acceso administrativo completo, por lo que podrás conectarte vía SSH y acceder a la consola de Zimbra sin restricciones. Lo que necesito: • Generar las claves DKIM dentro de Zimbra y dejar configurado el servicio de firma para todos los dominios activos. • Publicar los registros TXT correspondientes en mi DNS y esperar la propagación para validar que la clave se reconoce correctamente. • Verificar el funcionamiento enviando correos de prueba a herramientas como Gmail, Outlook y mail-tester, garantizando que no aparezcan advertencias DKIM mis-aligned. • Entregarme un pequeño documento (puede ser Markdown o PDF) con los pasos realizados y los...
Description: We're looking for someone experienced in provisioning Microsoft 365 tenants (Exchange Online Plan 1) through clean CSP or direct reseller channels. We do NOT want Sherweb or Pax8 — we need diversified sourcing across lesser-known distributors or direct Microsoft purchasing. What we need: 5-50 tenants per month to start, scaling over time 24-48 hour turnaround per batch Each tenant provisioned with Exchange Online Plan 1 licenses Full admin access handed over to us DNS configuration is a plus but not required Ideal candidate: Has existing relationships with Microsoft CSP distributors or is a CSP reseller themselves Can source tenants across multiple providers (not all from one place) Understands why provider diversification matters Has done this at volume before In y...
I manage a FreePBX-based platform and need to integrate a robust, fully command-line-based provider manager for domestic US call termination. The solution must allow me to: • Send local ANI traffic, toll-free (TFN) calls, and unrestricted wireless calls. • 100% CLI outbound calls. • Maintain call quality and availability at the level of the most popular retail carriers. The acceptance process will be simple: I will install your configuration on a test PBX, make and receive all three types of calls mentioned, and monitor stability for 24 hours. If everything works correctly, with caller ID displayed on screen and no audio issues, we will need 200 to 500 ports to use, and you will act as our intermediary. Please suggest and secure your preferred carrier; we only ask that t...
I’m looking for help with daily “helping tasks” that fall squarely under technical support. The work is straightforward: each day I’ll pass you small computer-related jobs—things like updating software, installing lightweight apps, tidying settings, or troubleshooting an everyday glitch. Nothing is advanced; solid basic computer skills and the confidence to follow clear instructions are all you need. You’ll check in online, knock out the task, and leave me a short note describing what you did so I can track recurring issues. Most items take under an hour, but they pop up frequently, so reliability and prompt turnaround matter more than deep tech certifications.
I’m looking for someone experienced with remote IT support who can help keep my computer running smoothly and monitor its status on a regular basis. Tasks may include: Checking system availability and performance Helping with basic troubleshooting Performing routine maintenance tasks Assisting with updates or configuration when needed Requirements: Experience with remote computer support Reliable communication Ability to work independently Comfortable using remote support tools Details: Remote work Flexible schedule If you’re interested, please send me a message with your experience and availability.
I need Nginx server software installed on my Linux system. Ideal Skills and Experience: - Proficiency in Linux - Experience with Nginx installation and configuration - Familiarity with server software and command line operations
My production Windows server has gone silent—no RDP, no web console, nothing. I still hold full ownership credentials with the hosting provider, so authorized recovery options (rescue console, snapshot-based rollbacks, etc.) are available. I need a seasoned Windows system administrator or security professional to get the box responsive again, verify integrity, and lock it down. The core goals are simple: • Diagnose why the server is unresponsive and revive it through approved rescue or recovery tools • Regain normal administrator access without breaching provider policies • Audit current services, patch levels, startup items, and event logs • Implement practical hardening steps (firewall rules, updates, backup checks) and explain what was changed Please...
Need a person well versed in LAN and making my systems secure from outsiders accessing it or not allowing any remote access. Also need an audit of my system Using windows and has some softwares More details: What type of systems are you using? Windows What specific security measures are you interested in? Firewall configuration, User access control Do you need to secure any specific applications or software? Database systems Preference: Looking specifically for a freelancer based in India.
Saya membutuhkan sebuah logo bergaya minimalis yang menonjolkan inisial atau nama perusahaan saya. Logo ini akan menjadi identitas visual utama di situs web, media sosial, dan materi promosi cetak, jadi tampilannya harus bersih, modern, dan tetap mudah dikenali walau ditampilkan pada ukuran kecil. Ruang lingkup pekerjaan: • Mengembangkan 2–3 konsep awal berdasarkan arahan singkat tentang karakter bisnis dan skema warna yang saya sediakan. • Memilih satu konsep terbaik lalu menyempurnakannya (revisi warna, tipografi, dan penataan elemen) hingga siap produksi. • Menyerahkan file final dalam format vektor (AI/SVG) serta PNG latar transparan, beserta panduan warna dasar. Kriteria keberhasilan: • Desain mengikuti prinsip minimalis—garis sederhana, ruang kosong ...
I need a new Kamailio setup primarily for VoIP call routing. This setup should support SIP and WebRTC protocols. Key Requirements: - Configure Kamailio for VoIP call routing - Support for SIP and WebRTC protocols - Detailed documentation of the setup Ideal Skills and Experience: - Expertise in Kamailio - Strong knowledge of VoIP, SIP, and WebRTC - Experience with system configuration and documentation
We have a brand-new domain on a fresh Hostinger mail server and every message we try to send to Gmail is immediately refused. The domain itself checks out clean and I ran the usual blacklist scans on both the domain and server IP without finding anything suspicious, yet Google still bounces even a single manual test email. At the moment we send only occasional marketing messages—nothing high-volume—and I’m not even sure whether reverse DNS is correctly configured on this server. SPF, DKIM and DMARC may also be missing or incomplete; if they are, I’ll need them set up properly. Here’s what I need from you: • Pinpoint the exact reason Gmail is blocking us (IP reputation, rDNS, missing authentication records, Hostinger-specific issue, etc.). • Im...
I'm seeking an experienced Exchange Administrator to troubleshoot email delivery issues. We're currently facing problems with both internal and external email flows, and specifically dealing with emails that are stuck in the queue. Key Requirements: - Diagnose and resolve email delivery issues. - Fix emails stuck in the queue. - Ensure proper functionality of both internal and external email delivery. Ideal Skills and Experience: - Extensive knowledge of Microsoft Exchange. - Proven experience in email delivery troubleshooting. - Ability to work efficiently to resolve issues. Please provide a detailed plan of action.
My AWS environment already contains several workloads, and I now need an engineer who can take full ownership of EC2, S3, and RDS. The immediate focus is to integrate the resources that are already running, then optimise, secure, and automate them so the platform is production-ready and easy to maintain. You will start by reviewing the current account, mapping the existing instances, buckets, and databases, and ensuring every component follows AWS best practices. From there, I need clean configuration of each service—right-sized EC2 instances, lifecycle-managed S3 storage, properly parameterised RDS—with monitoring and alerting wired through CloudWatch (or a comparable tool you recommend). Security is equally important: hardened security groups, strict IAM roles and policies, ...
I have a Hetzner server standing by and a bundle of configuration files that are already final—no tweaks, edits, or refactoring required. What I need is a smooth, verifiable hand-off from my local machine to the correct paths on the server. Here’s the flow I’m after: • Establish an SSH session (key-based access is ready). • Transfer each configuration file to its proper directory, preserving ownership and permissions. • Reload or restart any affected services so the new configs take effect immediately. • Confirm there are no syntax errors or failed services once the reload is complete. The files cover the usual suspects—think web, database, or application layers—though again, they’re all prepared and tested; this job is stri...
My mobile app and its companion website are feature-complete and publicly available, yet the service keeps dropping because of recurring server downtime. Getting the servers back to stable, continuous operation is my single most urgent goal. While you diagnose and resolve the root cause, you may also notice a few minor bugs on the app and site; feel free to flag them so we can tackle those once uptime is restored. I host everything on a single VPS with typical LAMP-style services and a REST API that the app calls. During an outage users receive generic 5xx errors, forcing me to reboot the instance to recover. I need a clean, permanent fix rather than another temporary restart. Please send a detailed project proposal that explains • how you will isolate the source of the downtime, ...
انتهيت تقريباً من تطوير موقعي الخدمي المبني على نظام مخصص يحمل اسم “Lovely”، وأحتاج الآن إلى عين خبيرة تتولى المرحلة الحاسمة قبل الإطلاق. المطلوب هو إنجاز الآتي: • تنفيذ اختبار اختراق (Pen-Testing) شامل يحدد أي ثغرات ويسلّم توصيات قابلة للتنفيذ. • تحليل الشيفرة المصدرية للتأكد من جودة الكود وامتثاله لأفضل ممارسات الأمان. • مراجعة إعدادات الخادم (Firewall، SSL/TLS، Headers، DNS وغيرها) وضبطها نهائياً. بعد إقفال المسائل الأمنية أريد متابعة دعم لمدة شهر بعد الإطلاق: الردّ على الأحداث الطارئة، تطبيق التحديثات والتحسينات الصغيرة، وتقديم نصائح دورية للحفاظ على الأداء. هناك فكرة مطروحة بسحب بيانات الموقع إلى منصة جاهزة بديلة؛ أود سماع رأيك المهني أولاً قبل اتخاذ قرار الانتقال من البنية الحالية. سلّم لي في نهاية العمل: 1. تقرير مفصل عن الثغرات والإصلاحات. 2. ...
I already have a working Python strategy that uses Angel One SmartAPI and pushes trade-execution alerts to a Telegram bot. All I need now is a clean deployment on my Windows-based VPS, plus a quick round of live testing to confirm everything fires correctly. Environment • VPS: Windows (fresh instance, RDP access ready) • Code: Fully written, installs with , uses SmartAPI and python-telegram-bot. • Budget: ₹3-5k; I’m happy to split it into two milestones—deployment and successful test run. What I’m looking for 1. Remote setup of Python, required libraries, and SmartAPI credentials on the VPS. 2. Configuration of the Telegram bot so it notifies me on every trade execution. 3. Guidance on credential storage and security; I’m not sure if I&r...
I need Immich running on my QNAP TS-216G so that every original image and video, the PostgreSQL database, and all generated thumbnails live permanently on the NAS itself. Heavy tasks—face recognition, video transcoding, metadata extraction—should be pushed to my Windows-based desktop with an NVIDIA GPU and handled in real time over the network. Once processing is done, the NAS must still serve and display content without relying on the PC being online. Here’s what I’m after: • Install and configure Immich (Docker or native, your choice) on the QNAP with all persistent volumes mapped to NAS storage. • Set up a clean mechanism for off-loading compute jobs to the Windows PC: this could be a companion Immich micro-service stack, Docker over WSL2, or any ...
I’m ready to move our 75-user environment (50 in the head office, 25 in a branch) from scattered workstations to a properly structured Windows Server platform and I need someone who can be on-site in Bangalore right away. The job covers the full cycle for a one-week engagement: • Install and configure a current Windows Server edition you feel is most suitable for our workload and licensing plan. • Migrate our existing workstation-based applications onto the new server, ensuring every user can log in and work exactly as before. • Design and deploy a secure VPN so both branch staff and work-from-home users connect seamlessly. • Centralise data storage, set up automated backups, and document the recovery procedure. • Analyse the requirements, size the h...
I am running Calabrio Quality Management (now branded under Verint) on-premises at version 11.5 and need an expert to move us to a newer build. I have narrowed the target to a specific release above 11.5—currently 11.5.94—but I may refine that once we review the release notes together. Your scope will cover the complete upgrade lifecycle: • Perform a clean, tested upgrade of the existing 11.5 environment to the agreed-upon version. • Install and validate the required security certificates so every service starts without trust errors. • Re-configure integration with our Active Directory for seamless single sign-on. • Change the Calabrio servers to a new Windows domain while preserving all call recordings, QM data, and historical reporting. I will sup...
I run a healthcare-focused IoT platform built entirely on ThingBoard and I’m ready to hand the technical reins to an expert for the next twelve months. The scope is end-to-end: you will keep the platform healthy, extend it with new functionality, and guard its security posture. The environment is used daily for patient monitoring and management and must interface cleanly with existing information systems, so stability and clean integrations are critical. Day-to-day you’ll review device telemetry flows, fine-tune rule chains, roll out version upgrades, patch vulnerabilities, and design fresh dashboards or API endpoints whenever clinical teams request them. Where integration work is needed you’ll coordinate with our in-house developers to stitch ThingBoard services into ...
- Need to have some who can show me around Veeva MedInquiry. It means that you should have access to Veeva system such as SBX. - Need to also to have an explanation and if possible a walkthrough of Veeva CRM ↔ Veeva Vault MedComms integration ncluding monitoring and troubleshooting recurring CRM Pull/Push jobs (Accounts, Inquiries). - Need to explain how to manage a Global MedInfo Website Support and to show me around if possible. - Need to refresh up on how to use Veeva Vault MedComms & PromoMats as the company administrator - And finally show me how to manage IQVIA OneKey / HCP reference data management and territory alignment processes
My domain is registered with GoDaddy and I already have both a Zoho Mail account and the domain added inside Zoho. I now need someone to complete the remaining configuration so every mailbox at the domain sends and receives exclusively through Zoho Mail. Your work will centre on the DNS panel at GoDaddy and the control panel inside Zoho Mail. Please update and verify everything Zoho requires—MX, SPF, DKIM and (if advisable) DMARC—then test delivery in and out to be sure no messages land in spam or bounce. The Zoho side is ready for verification; I just want it finished correctly and quickly. Deliverables • Correct Zoho Mail MX, SPF, DKIM (and optional DMARC) records live on GoDaddy • Domain status inside Zoho showing verified/active • Successful send-and-...
I run a small but busy office in Magog, Quebec and I need a reliable IT hand for a few hours each week. The role centres on day-to-day technical support for our Mac-based desktops and laptops: troubleshooting macOS issues, installing or updating software, setting up new workstations, and keeping routine backups running smoothly. When everything is quiet on the support front, I’d like you to switch gears and handle light data entry—the work is straightforward but demands quick, accurate typing. You’ll succeed here if you: • Know macOS inside out, from user account management to Time Machine and basic networking. • Can explain fixes in plain language to non-technical staff. • Type quickly and precisely enough to keep our internal records current. Most weeks...
My Ubuntu-based server runs Nginx as both the webserver and an HTTP reverse proxy. Despite average utilisation staying below 50 %, I keep running into three intermittent problems: • the nginx service suddenly stops, • the whole OS occasionally freezes, and • some requests return 500 errors even though the upstream application is healthy. What I need from you is a full-scope diagnosis, clear explanation of the root cause(s), and concrete fixes. That will likely involve: • auditing current nginx and systemd settings (nginx ‑T, unit files, , etc.), • analysing kernel, journal and dmesg logs for memory, I/O or cgroup problems, • stress-testing and reproducing the 500 responses, • tuning worker processes, buffers, time-outs and any OS limit...
We are developing a security product for AIX that is currently causing kernel crashes. We need an experienced engineer to work with our development team to identify and resolve the root cause. We'd like to start with a short discovery call to confirm fit, then move quickly. Ideal experience: Debugging AIX kernel extensions Analyzing AIX system dumps AIX kernel internals
Our organisation is ready to bring our entire iPhone and iPad fleet under a single Mobile Device Management umbrella and I need an engineer who can take the reins from initial planning through a clean, fully documented rollout. The scope centres exclusively on iOS devices—no Android or Windows endpoints are involved. I’ll provide Apple Business Manager access, purchasing portals and any required certificates. From there, I want the MDM environment installed or configured, best-practice enrolment workflows put in place, and clear configuration profiles for apps, security settings and compliance rules. A concise hand-off package (step-by-step admin guide, user enrolment PDF and exported configuration profiles) will close out the engagement so my internal team can manage day-to-d...
IM LOOKING FOR A EXPERT IN SLC500 PROGRAMMING FOR A LARGE WAREHOSUE AND PREFERABLY SIEMANS PROGRAMMING ALSO
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
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