Konstantinos Chiotoglou
Athens
Summary
Network Support Engineer with comprehensive experience designing, implementing and maintaining growing network infrastructure. Analytical and logical professional quickly learns new concepts paired to complement understanding of networking protocols and OSI or TCP models. Commended for providing top-notch, hands-on technical support for WAN, LAN, proxy and security devices. Successful at completing new installations, updates and configuration of network components. Experienced in setting up devices, troubleshooting issues and optimizing settings. Knowledgeable about maintaining current software and hardware to meet user needs. Proficient support engineer offering experience in helpdesk operations, network maintenance and mobile device support.Creative Technical Support Representative eager to find novel and productive solutions for customer issues. Adapts to unique complaints and queries with thorough research and expert critical thinking skills. Committed to problem resolution and customer satisfaction.Troubleshoots highly technical, complex issues with ease and patience. Delivers Tier 2 and 3 support knowledge. Strong team leader, trainer and organized worker dedicated to providing high-quality work in all settings.
Overview
19
19
years of professional experience
Work History
Senior Technician /Senior Operator
Netcompany Intrasoft
2024.06 - Current
- Improved equipment efficiency by performing regular maintenance and calibration of complex machinery.
- Exceeded customer expectations during field service visits by demonstrating professionalism, technical expertise, and excellent communication skills.
- Deliver Business Applications training and support (on-the-job training, remote training, structured classroom training)
- Prepare and update the training material
- Provide user support services
- Act as 1st and 2nd tier support resources
- Mentored junior technicians, providing guidance on best practices to enhance their skills and knowledge base.
- Performed troubleshooting and diagnosis on malfunctioning equipment.
- Provided exceptional customer support, resolving technical issues quickly and efficiently.
- Diagnosed and repaired problems with electrical and mechanical systems.
Senior IT Network Engineer
Raven
2023.06 - 2024.05
- Management of computer systems to support employees and office infrastructure
- Technical user support for PC troubleshooting
- Training of employees in new electronic systems
- Perform software upgrades
- Renewal of software licenses and other legal documents
- Ensure compliance with quality standards
- Assessment of potential electronic threats
- Oversee data storage.
- Conducted regular maintenance on networking equipment, guaranteeing optimal performance and longevity.
- Delivered exceptional customer service when addressing technical concerns from internal stakeholders or clients.
- Reduced downtime through proactive identification and resolution of IT issues.
Network Support Engineer
University of Thessaly
2022.05 - 2023.02
- Improved network performance by troubleshooting and resolving hardware, software, and connectivity issues.
- Diagnosed network problems involving combination of hardware, software, power and communications issues.
- Analyzed root causes of recurring issues to develop long-term solutions that increased reliability across multiple networks.
- Implemented monitoring tools for proactive identification of potential issues before they became critical problems.
- Supported users in setup and configuration of wireless bridge networks.
- Enhanced network security with the implementation of firewall policies and regular vulnerability assessments.
- Assisted in the design of scalable wireless networks that accommodated future growth while maintaining high levels of security.
- Optimized network infrastructure through meticulous documentation of configurations, procedures, and changes.
- Reduced downtime for clients by providing efficient technical support and timely issue resolution.
- Designed robust backup solutions to protect critical data from loss due to hardware failures or other unexpected events.
- Performed network security design and integration duties.
- Management of all computer rooms of the University of Thessaly
- Reorganization of all active equipment in all Computer Rooms and Data Centers of the University of Thessaly (e.g Routers, Switches, Telephone Exchanges Servers Uninterruptible Power Supply Systems (UPS))
- Troubleshoot network security issues
- Taking part in projects in order to modernize the network security infrastructure
- Applying firewall policies in order to provide access to users and servers
- Installation, configuration, and maintenance of network equipment
- Network topology design
- Perform health checks and performance tuning
- Network link traffic monitor using proper tools
- Familiar with: cisco switches, routers, Huawei switches, cisco access-points
- Installation of wireless access points for all departments
- Reorganization of all public and private IP addresses
- Support for all departments of the university (2011-2017, May 2022-Febr 2023)
- Placement of central and local distributors (Cabins/Racks, Patch Panels, optical distributors, etc.)
- Physical Interconnection of remote buildings (Campus Data transfer cables, Telephone cables)
Senior Risk & Fraud Analyst
Gml Interactive (Betano & Stoiximan)
2019.04 - 2022.02
- Conduct effective investigations on customers betting behavior and detect link connections between them
- Investigate alerts (internal and external) with proper analysis
- Perform proactively checks on customers transactions through specific procedures
- Monitor and detect suspicious betting patterns and act accordingly
- Monitor carefully internal procedures to be compliant with legislation
- Reports in chargebacks and AML.
- Evaluated customer data to identify and prevent fraudulent activities.
- Performed risk assessments to determine level of fraud risk and prioritize investigations.
IT Support And Web Developer
University of Thessaly
2011.01 - 2017.01
- Website designer of the University of Thessaly
- Webmaster of the University of Thessaly
- Technical Support Officer at the University of Thessaly Interconnection Office.
- Troubleshot issues with websites and fixed scripting and use issues.
- Streamlined ticket resolution process, increasing productivity and reducing average response time.
- Delivered remote support services to clients across multiple locations, enabling swift issue resolution without the need for on-site visits.
- Coded websites using HTML, CSS, JavaScript, and jQuery languages.
Assistant Trainer
3rd High School
2006.01 - 2008.01
- Assistant Trainer at In-Service Seminar in Secondary Computer Science at 3rd EPAL Volos.
- Participation in Research Committee Programs at the Department of Networks of University of Thessaly.
Education
MSc in social and information systems -
Open University of Cyprus
01.2018
Bachelor of Engineering and Computer Science -
ATEI, Larissa Department of Computer Engineering
01.2016
Degree in music studies -
Odeon OF Volos
Volos01.2007
Skills
- System Administrator (MySQL)
- MS Office Suite
- Google Analytics
- BI tools
- Basic Linux
- Critical thinking
- Teamwork Certificate
- Leadership
- Network Troubleshooting
- Network configuration
- VPN Configuration
- Root Cause Analysis
- Wireless Networking
- Ticket management
- IP Addressing and Subnetting
- Firewall Management
- ITIL Framework
- Network support
- VPN configurations
- Data Backup
- Software Installation
- User Training
- Support Services
- Hardware and Software Repair
- Helpdesk administration
- Software Deployment
- Teamwork and Collaboration
- Problem-Solving
- Time Management
- Customer Support
- IP Addressing
- Network Security
- Operating System Support
- Remote Support
- Data Backup and Recovery
- Training and mentoring
- Hardware Installation
- Cloud Computing Expertise
- Network Administration
- Database Administration
- Troubleshooting skills
- User Support
- Project Management
- System Configuration
- Backup and recovery
- Technical Support
- Hardware support
- Help Desk Experience
- Cloud computing knowledge
- Ticketing system proficiency
- Remote Support Capabilities
- Desktop support
- IT Security Management
- Tableau Expertise
- Machine Learning
- Cybersecurity knowledge
- SAS Experience
- Joomla
- Jira
- Netbox
- Netvisio
- C
- Html
- Java
- Python
- Confluence
- Wordpress
Languages
Greek
Native language
English
Proficient
C2
Additional Information
Date of birth: Nov 13, 1985
Timeline
Senior Technician /Senior Operator
Netcompany Intrasoft
2024.06 - Current
Senior IT Network Engineer
Raven
2023.06 - 2024.05
Network Support Engineer
University of Thessaly
2022.05 - 2023.02
Senior Risk & Fraud Analyst
Gml Interactive (Betano & Stoiximan)
2019.04 - 2022.02
IT Support And Web Developer
University of Thessaly
2011.01 - 2017.01
Assistant Trainer
3rd High School
2006.01 - 2008.01
MSc in social and information systems -
Open University of Cyprus
Bachelor of Engineering and Computer Science -
ATEI, Larissa Department of Computer Engineering
Degree in music studies -
Odeon OF Volos
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