Saiful Islam Rakib
Köln
Summary
IT support and networking enthusiast studying Communication Systems at TH Köln. Experienced with Windows, Cisco, VoIP, and cloud tools—actively seeking impactful internships in dynamic tech environments.
Overview
5
5
years of professional experience
Work History
Junior IT Support Engineer
S&S COMPUTER SOLUTION
04.2018 - 02.2019
- Installed, configured, and troubleshot hardware, software, and operating systems with a focus on system security and performance.
- Managed LAN networks, servers, storage solutions, and IT equipment, ensuring high availability and security.
- Provided technical support for end-users, resolving software and hardware issues efficiently.
- Administered Active Directory for managing user accounts, access rights, and security policies.
- Assisted in network monitoring and troubleshooting using Wireshark & PRTG to optimize performance and security.
- Ensured timely software updates, patch management, and system maintenance.
Project: VoIP Network Deployment & SIP Analysis
TH Köln
04.2022 - 08.2022
- Implemented an enterprise VoIP LAN with subnetting, NAT, and SIP-based call routing via Asterisk.
- Configured Cisco routers and switches for interconnection, enabling SIP trunking between VoIP providers.
- Analyzed SIP signaling, RTP flows, and call setup latency using Wireshark.
Project: QoS Optimization in VoIP Networks
TH Köln
04.2023 - 08.2023
- Designed a QoS-enabled VoIP network with VLANs, static routing, and traffic prioritization.
- Evaluated codec performance and bandwidth allocation under varying constraints.
- Conducted network monitoring and traffic analysis to optimize VoIP service quality.
Education
Master's Degree - Communication Systems and Networks
Technische Hochschule Köln
08-2026
Bachelor of Engineering - BE - Computer Engineering
Bangladesh University of Business & Technology - BUBT
02.2018
Skills
- Microsoft 365 (Outlook, Excel)
- Windows & Linux OS
- Troubleshooting (Hardware & Software)
- Network Monitoring (Wireshark, PRTG)
- Networking Protocols (TCP/IP, SIP, UDP)
- Routing and Switching
- Active Directory
- Microsoft Azure (VMs, AD)
- Windows Server
- Python, PowerShell (Basic)
- Jira
- Quick learner & Adaptability
- Problem Solving, Time management
Languages
English
Advanced (C1)
German
Upper intermediate (B2)
Additional Information
Completed Courses: CCNA | AZ-900
Timeline
Project: QoS Optimization in VoIP Networks
TH Köln
04.2023 - 08.2023
Project: VoIP Network Deployment & SIP Analysis
TH Köln
04.2022 - 08.2022
Junior IT Support Engineer
S&S COMPUTER SOLUTION
04.2018 - 02.2019
Bachelor of Engineering - BE - Computer Engineering
Bangladesh University of Business & Technology - BUBT
Master's Degree - Communication Systems and Networks
Technische Hochschule Köln
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