Hire the best CentOS Developers in Turkey

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$40 hourly
Rafael S.
- 4.6/5
- (26 jobs)
Hello! I am expert Backend Developer with almost 20 years of experience in backend, Android mobile, desktop apps, apps for embedded devices, ERP apps and web development. Proficient in developing applications in wide range of areas, including business applications and database management. Have high attitude expertise in Linux OS management, including building automated servers with set of services/tools for different purposes, virtualization tehcnologies like KVM/libvirt, containerization technologies like LXC, Docker, Kubernetes. What I can do: - Planning and implementing the app’s architecture and features. - Writing apps from the very scratch and further support. - Code Review, Fixing and supporting the apps written by others. - Working with a team of developers or solo. Technical Skills: * Languages and Frameworks: Java (Spring, Quarkus, Dropwizard....), Kotlin, C, C++, Qt, Rust, Go, Python (Django), JavaScript, PHP * Platforms: Backend, Android, Linux (Fedora, RedHat, CentOS, Ubuntu) * Technologies: Docker, Kubernetes, CI/CD, Mobile Development, Docker, KVM, libvirt, IT infrastructure monitoring tools, AWS services, GCP * Database Management: PostgreSQL, SQLite, MySQL.... - I'm open to working with big and small companies and individual clients. - I'm comfortable signing an NDA. - Prefer long-term collaboration. - Ready to work 30-60 hours per week I'm open to various projects and would love to show you my creative side too. My commitment to continuous learning keeps me updated with the latest trends and technologies, allowing me to bring cutting-edge solutions to your projects and better expreince. I am giving high attention to details, ready to resolve complicated and complex challenges, always tend to offer most efficient solution. Thanks for your time Regards Rafael S.

CentOS
Docker
Computer Hardware
Virtualization
Ubuntu
Linux System Administration
Qt Framework
Android SDK
Android App Development
Mobile App Development
Python
Kotlin
Java
C++
C
$30 hourly
Mesut B.
- 5.0/5
- (20 jobs)
- juniper, cisco, iptables, nortel, avaya - fortigate, juniper, pfsense, mikrotik - ddos, netflow, scrutinizer - Python, TwistedMatrix - nginx, haproxy, letsencrypt - Openstack, kvm, ovs, ovn

CentOS
VPN
PfSense
Linux System Administration
Firewall
Network Administration
Linux
Network Equipment
Windows Administration
Squid
HAProxy
Juniper
Network Security
Junos OS
Python
NGINX
$60 hourly
Huseyin O.
- 5.0/5
- (4 jobs)
I have 25 years of experience in software industry. Expecially I trust my own python language and linux os systems.

CentOS
Flask
JavaScript
Laravel
Django
Python
PHP
Linux
Debian
Ubuntu
Scripting
System Administration
WebRTC
Linux System Administration
$50 hourly
Ahmed H.
- 5.0/5
- (93 jobs)
🔹Highly skilled IT Specialist with premier support capabilities. 🔹Efficient communicator in English. 🔹Unwavering commitment to responsiveness. 🔹Over a thousand hours logged on Upwork. 🔹Successfully completed more than 60 projects on Upwork. 🔹Bringing 22 years of IT experience to the table. 🔹Available full-time and open to relocation. As a certified System Administrator, Developer, Programmer, and Project Manager, I am the professional you seek assistance from. I hold LPI (101 & 102) and RHCE certifications and have a well-rounded skill set in the IT sphere, from automation to development across mobile, desktop, and web platforms. Over the past 15 years, I've acquired significant experience across a broad spectrum of software and systems. Notably, my skills include: 1. **Linux System Administration**: I've worked with numerous Linux systems since 2006, starting with Fedora, then CentOS and Ubuntu, managing their installation, configuration, and maintenance. 2. **Scripting**: I take immense pleasure in scripting, particularly for automation. I've honed my skills in Linux (bash) and Windows (AutoIT - batch) scripting, automating tasks even without command-line interfaces. 3. **Hosting Services**: I am proficient in handling various control panels for hosting and administration like cPanel, Plesk, ISPconfig, Webmin, Usermin, AWS, DigitalOcean, and Rackspace, among others. I can also manage standalone software like Apache, MySQL Server, and other servers. 4. **VPN Services**: I've installed and configured servers for VPN services, including PPTP and OpenVPN, and developed custom control panels for clients. I am proud to be the solo developer of vpnplatform (vpnplatform.org/team). 5. **Malware Mitigation**: I can clean your Windows systems of malware and secure them effectively. I've even developed an app, "Automated Malware Wizard," for comprehensive malware cleaning and system updating. 6. **Networking**: As a former ISP CEO, I delivered internet services to over 200 local subscribers at Hamad ISP. 7. **VOIP**: Experienced in Asterisk and Asterisk GUI installations. 8. **Virtualization**: Proficient with VMware and VirtualBox, complementing my hosting service capabilities. 9. **Email List Management**: I can effectively manage and clean your email lists, ensuring they stay away from SPAM lists. 10. **Web Development**: Proficient in HTML/CSS/PHP/MySQL/JavaScript for web page development. 11. **Other skills**: Experience with Oracle Databases, Android, and Java programming. I am always available for contact via email, SMS, or phone call, and ready to relocate if needed. I respect my work, ensuring confidentiality while dedicating my utmost effort. As the leader of a team of IT specialists, I can provide a holistic solution to your IT needs, from mobile to web development. Our mission is to deliver beyond your expectations. Please note: I am flexible with my availability and open to relocation. Currently, I reside in Istanbul, Turkey. Best regards, Ahmed Hamad

CentOS
Docker
Zabbix
Network Monitoring
Jenkins
Technical Support
OpenVPN
Amazon ECS
Virtualization
Linux System Administration
Network Administration
Terraform
Ubuntu
$99 hourly
Ahmed A.
- 4.9/5
- (176 jobs)
Hello , My name is Ahmed Alzaeem . Cisco ISP Network Engineer ,Tier1 ISP NOC engineer , More than 10 years experience. Asterisk Pbx Developer VPN Expert , WIFI Networks Operator , Squid cache Proxy expert . Developer for Many residential Proxy service Providers . Consultant with significant design and implementation complex networks. Windows servers administrator , Linux systems administrator , Mikrotik routers boards and Security consultant.Most experienced with VPN/Proxies over IPV4 & IPV6 protocols . Internet optimisation and QOS expert. Always meets client demands and develops good long-term customer relationships. my skills are below : Cisco ASA firewalls IPS/IDS Cisco IOS VPN/Socks5 IPV6 Protocol Squid Cache proxy DVR & CCTV systems Tunnelling & Traffic encryption SNMP Monitoring & Netflow Technical Support OpenDns Filtering VOIP Asterisk , Freepbx & Elastix Wifi Planning Raspberry Pi Pfsense firewalls Quality of service Linux iptables Linux Bash scripting PHP/Mysql Windows server administration Mikrotik

CentOS
Debian
Security Operation Center
Python
OpenVPN
Wireless Network Implementation
Squid
Cisco IOS
Bash Programming
Asterisk
Network Security
IPv6
Internet Protocol Security
VPN
Cisco ASA
$20 hourly
Egemen K.
- 5.0/5
- (2 jobs)
Hello, I m a Linux System Administrator for 10 years. My objective is to bring excellent client satisfaction, providing quality and professional work. I have experience with Debian, Ubuntu, Centos. → Linux Server Administration → AWS EC2, CloudFormation, AutoScale → Apache/ Nginx → Python → MySQL → MongoDB → PostgreSql → Shell Script → Php / php-fpm → Git/Svn

CentOS
Linux
System Administration
SSL
Ubuntu
Postfix SMTP Server
AWS Fargate
Linux System Administration
Amazon S3
Amazon
Debian
NGINX
PHP
MySQL
$28 hourly
Seyed Yaser N.
- 4.7/5
- (17 jobs)
Experienced Elasticsearch Engineer with 7+ years in designing, implementing, and maintaining large-scale Elasticsearch clusters. Proficient in the entire ELK Stack (Elasticsearch, Kibana, Logstash), ensuring seamless integration and optimization. Summary of Experience: Elasticsearch: ⦿ Managed Elasticsearch Cluster with up to 300GB of RAM, 35TB of storage, and 120 CPU cores. ⦿ Designed, implemented Elasticsearch clusters for multiple environments. ⦿ Proficient on capacity planning to ensure clusters meet current and future demands. ⦿ Optimized Elasticsearch performance through index tuning, sharding, replication. ⦿ Experienced in securing Elasticsearch nodes by encrypting communications. ⦿ Proficient in Snapshot and restore operations. ⦿ Wrote advanced Elasticsearch queries using Query DSL for searches. ⦿ Utilized Aggregations to analyze and summarize data within Elasticsearch. ⦿ SIEM Logstash: Expert in data ingestion and integration with Elasticsearch and Logstash, handling large datasets from various sources such as CSV, logs, Cassandra, JSON, MongoDB, Kafka, RabbitMQ, and SQL Server. Kibana: Created diverse charts and visualizations in Kibana, including line, bar, pie, and area charts. Designed complex aggregation-based visualizations with Kibana Lens and built dashboards to monitor real-time data and metrics. Implemented time series visualizations for analyzing temporal trends. Beats and Other Tools: Experienced in using Beats (Filebeat, Metricbeat, Winlogbeat, Packetbeat) for log collection and parsing. Integrated monitoring tools like Prometheus for Linux metrics and set up alerts in Grafana. Worked with AWS S3 for snapshots and restores, Prometheus for server logs, NGINX for Kibana user management, Apache NiFi, Graylog for clusters and pipelines, OpenSearch for cluster management, and Enterprise Search for integrating Confluence and building search UI applications. 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗪𝗿𝗶𝘁𝗲𝗿 𝗳𝗼𝗿 𝗢𝗽𝘀𝘁𝗲𝗿.𝗰𝗼𝗺: 𝗔𝘂𝘁𝗵𝗼𝗿𝗲𝗱 𝗜𝗻-𝗗𝗲𝗽𝘁𝗵 𝗔𝗿𝘁𝗶𝗰𝗹𝗲𝘀 𝗼𝗻 𝗘𝗹𝗮𝘀𝘁𝗶𝗰𝘀𝗲𝗮𝗿𝗰𝗵 𝗮𝗻𝗱 𝗥𝗲𝗹𝗮𝘁𝗲𝗱 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: ⦿ How to Migrate Data between Different Versions of Elasticsearch & Between Clusters. ⦿ Elasticsearch Version Upgrades – Using Feature Migration APIs to Avoid Deprecation Issues. ⦿ Missing shards in Elasticsearch. ⦿ Elasticsearch Rolling Restart: How to Perform Rolling Restarts. ⦿ How to Upgrade Versions in Elasticsearch

CentOS
Linux System Administration
Logstash
Visualization
Amazon S3
ELK Stack
Article Writing
Linux
Elasticsearch
Red Hat Enterprise Linux
Technical Writing
Ubuntu
Kibana
Big Data
$25 hourly
Haci Halil K.
- 5.0/5
- (8 jobs)
Since 2018, I have been serving our customers with services managed in virtualization backup and server storage layer.

CentOS
Backup
Veeam
Zerto
Microsoft Server
Storage Device
Backup Administration
VMware Administration
Failover Testing
Server
Proxmox VE
VMWare
macOS
Windows Server
Linux
$90 hourly
Rastin G.
- 0.0/5
- (0 jobs)
Results-driven DevOps Engineer with over 4 years of experience in Linux system administration, networking, and cloud-native technologies. Proven expertise in automation, CI/CD pipelines, containerization, and infrastructure monitoring. Adept at deploying and managing high-availability infrastructures using tools like Kubernetes, Docker, and Terraform. Skilled in Linux security, scripting (Bash/Python), and cloud-agnostic DevOps practices. Passionate about optimizing system performance, ensuring security, and driving operational efficiency

CentOS
MonetDB
PostgreSQL
Cisco Certified Network Associate
Docker
Kubernetes
NGINX
Bash
Ubuntu
Linux System Administration
Problem Solving
DevOps
$30 hourly
Ulugbek N.
- 4.7/5
- (1 job)
⭐ Back-end ⭐ Front-end ⭐ Mobile Apps ⭐ DevOps ⭐ React JS ⭐ Next.js ⭐ WordPress ⭐ Laravel ⭐ CodeIgniter ⭐ Symfony 🖐 Hello! I am Senior Full Stack Developer and DevOps specialist with extensive experience in designing and implementing scalable web applications. With over 8 years of hands-on experience, I excel in crafting end-to-end solutions that combine seamless user experience with efficient backend functionality. My expertise includes integrating Frontend and Backend technologies to deliver intuitive and high-performing applications. As a DevOps enthusiast, I specialize in optimizing development workflows, automating processes, and ensuring smooth deployment and scalability of applications. I thrive in collaborative environments where innovation and continuous improvement drive success. Let's collaborate to innovate and elevate your projects together! My technical expertise includes proficiency in: ✅ Front-end: HTML, CSS, JavaScript (React JS, NEXT.JS, Vite, Webpack, jQuery) ✅ Back-end: Dart, Node.js, PHP, Python, REST API, GraphQL ✅ CMS: WordPress, MODX, Craft CMS, PageKit ✅ Frameworks: CodeIgniter, Laravel, React PHP, Symfony, Yii2 ✅ Database: MySQL, PostgreSQL, Redis, MongoDB ✅ Mobile App: Flutter, Java Native for Android, Ionic framework ✅ DevOps: CI/CD, Docker, VM ✅ Linux: CentOS, Ubuntu ✅ Server Management: Coolify, cPanel, FastPanel, ISP Systems ✅ Performance and Scalability: Nginx, Caddy, PM2, PHP-FPM ✅ Version Control: Git, GitHub, GitLab Driven by a passion for innovation and a commitment to delivering high-quality solutions, I consistently exceed client expectations with scalable, user-centric applications.

CentOS
Web Server
Ubuntu
DevOps
Symfony
Laravel
CodeIgniter
WordPress
PHP
Next.js
React
Node.js
JavaScript
CSS
HTML
$25 hourly
Dogan Ozgur M.
- 0.0/5
- (0 jobs)
TECHNICAL PROFILE • With extensive experience in Linux System Administration and Windows System Administration, I specialize in the setup, maintenance, and optimization of servers at various scales. I manage high-volume operations seamlessly, ensure continuous system availability, and leverage automation tools to enhance operational efficiency. • In the field of Cybersecurity, I implement a wide range of protective measures, from firewall configurations to SIEM solutions. I proactively identify potential attack vectors through vulnerability assessments, provide cyber threat intelligence, and keep security policies constantly up to date. • I bring considerable expertise to Embedded Systems projects, ranging from sensor- and microcontroller-based applications to IoT technologies. By optimizing hardware-software integration, I develop solutions focused on high performance and energy efficiency. • Possessing in-depth knowledge of virtualization technologies (VMware, Hyper-V, Proxmox, etc.), I carry out projects aimed at scalability and cost optimization in corporate infrastructures. I ensure the effective management and regular updates of virtual machines operating in both Linux and Windows environments. • My broad experience in network configuration and monitoring extends from switch programming to VPN tunnel configuration. I successfully oversee critical IT operations such as Active Directory management and secure remote access. • By prioritizing data integrity and availability, I lead the creation and regular testing of disaster recovery plans in backup solutions, IP phone systems, and camera surveillance infrastructures. • Through high-volume log analysis, event correlation, and rapid response strategies, I proactively detect cyber incidents, raising the overall level of organizational security. By adapting my Cybersecurity expertise to diverse industry needs, I deliver maximum protection. • In Embedded Systems projects, I work on advanced hardware-software integration, including FPGA-based designs and real-time operating systems (RTOS), to create innovative products and solutions. • I integrate DevOps practices by combining Linux System Administration and Windows System Administration tasks with automation and container technologies (Docker, Kubernetes, etc.). This approach results in a highly efficient, scalable, and secure infrastructure.

CentOS
Cybersecurity Tool
Raspberry Pi
Cisco Certified Network Professional
Windows Server
Ubuntu
Server Operating System
Server Administration
Server & Virtualization Software
Server Virtualization
$10 hourly
Devops A.
- 0.0/5
- (0 jobs)
Kubernetes install and configuration Execution of devops processes Storage management and configuration Linux server install and management Jenkins install and management Docker with container hypervizor management Rancher install and management Open source technologies General system management VMware install and configuration

CentOS
Ansible
Redis
Apache Kafka
Jenkins
Red Hat
Ubuntu
Linux
Linux System Administration
Storage Area Network
VMWare
Kubernetes
Docker
DevOps
System Administration
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