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senior
Registration: 17.11.2023

David Maina Mwangi

Specialization: Network Engineer / Support Engineer / System Administrator / Cloud Support Engineer / Telephony Engineer
— Results-driven ICT/IT Professional with a very rich experience in the field. Adept at designing, implementing, and managing complex IT systems and infrastructure. Proven track record of optimizing technology to drive business growth and enhance operational efficiency. — Skilled in leading cross-functional teams, solving technical challenges, and ensuring the security and reliability of IT environments. Strong expertise in Network Administration, Systems Administration, Cloud Computing, Cybersecurity, Voice (VoIP)/Telephony Systems, SMS Messaging Systems, Telecoms VAS and Payments (MoMo). CERTIFICATIONS: Cloud Computing for Amazon Web Services Microsoft Azure Administrator Google Cloud Computing Foundations CompTIA Cloud+ Advanced Cybersecurity Penetration Testing Engineer Cloud Service Providers. Linux Network Administrator E-Learning Technology
— Results-driven ICT/IT Professional with a very rich experience in the field. Adept at designing, implementing, and managing complex IT systems and infrastructure. Proven track record of optimizing technology to drive business growth and enhance operational efficiency. — Skilled in leading cross-functional teams, solving technical challenges, and ensuring the security and reliability of IT environments. Strong expertise in Network Administration, Systems Administration, Cloud Computing, Cybersecurity, Voice (VoIP)/Telephony Systems, SMS Messaging Systems, Telecoms VAS and Payments (MoMo). CERTIFICATIONS: Cloud Computing for Amazon Web Services Microsoft Azure Administrator Google Cloud Computing Foundations CompTIA Cloud+ Advanced Cybersecurity Penetration Testing Engineer Cloud Service Providers. Linux Network Administrator E-Learning Technology

Skills

Network Administration
System Administration
Cloud Computing
Linux
Microsoft Technologies
Disaster Recovery
System Deployment
Infrastructure Management
Infrastructure Operations
Computer Hardware
Cybersecurity
IT Management
IT Operations
Operating Systems
Data Centers
Virtualization
Databases
Backups
Storage Systems
Network Security
Servers
Technical Support
IT Security Assessments
IT Strategy
IT Security Policies
Telephony
Message Queuing Systems
Systems Integrations
Mobile Messaging
Problem Solving
Leadership
Time Management
Containerization
UNIX
Solaris
FreeBSD
Automation
File Servers
User Management

Work experience

IT Consultant
since 03.2023 - Till the present day |NDA
Python, Java, SQL, AWS, Azure, Kubernetes, Docker, Agile, DevOps
● Assess and analyze clients' business needs, providing expert advice on technology solutions. ● Develop and implement strategic ICT/IT plans aligned with business goals. ● Design, deploy, and maintain ICT/IT systems, networks, security, and infrastructure, offering ongoing support and troubleshooting.
Network Manager
12.2013 - 02.2023 |Mobile Accord Limited
Windows, Linux
• Configured secure connectivity with Mobile Network Operators (MNO's) and other partners achieving 99.9% uptime for critical connections. • Deployed SMS messaging connections and Voice (SIP) services with wireless carriers and other partners, resulting in a 65% increase in communication efficiency. • Configured and Administered Telephony System, achieving 99.9% uptime and enhancing overall telecommunication reliability. • Managed 24/7 monitoring operations and resolved issues promptly, reducing downtime by 85% through issue identification and resolution. • Oversaw physical, cloud-based (AWS, Azure, GCP, Hetzner, iLand/11:11) and virtual servers running on Windows and Linux, ensuring seamless integration and scalability. • Was in charge of all 3rd party integrations (connectivity, APIs, SIP Trunks), improving collaboration efficiency by 95%. • Was responsible for Systems and Network Security, implemented robust security measures, reducing security incidents by 90% and ensuring compliance with industry standards.
Manager - IT Services Delivery
09.2012 - 11.2013 |KENCall EPZ
Manager, IT Services
• Ensured IT Service Delivery met KPIs and followed best practices, resulting in a 75% improvement in service quality. • Led, managed, and mentored IT staff for optimal performance, achieving a 98% customer satisfaction rate.
Senior Systems Administrator
11.2010 - 08.2012 |KENCall EPZ
LAN/WAN, Cisco, firewalls, ISO, ICT
• Managed client/server software distribution automation and preventive maintenance, leading to a 70% reduction in software deployment time. • Administered LAN/WLAN/WAN, Switches, Routers, APs, Telephony Systems and Firewalls, achieving 99.9% uptime for critical connections. • Maintained compliance with ISO and ICT policies, achieving a 93% compliance rate.
ICT Consultant
04.2009 - 10.2010 |NDA
ICT, IT audits
● Provided expert consulting services for IT infrastructure improvements. ● Conducted IT audits and developed security procedures.
Senior Systems Integrator
09.2008 - 03.2009 |Mullard Electronics LTD
Support, customer hardware
• Managed workshop operations and customer hardware maintenance, contributing to a 65% improvement in workshop operations. • Developed and maintained multi-station Linux-based system and accessories, achieving a 45% improvement in system reliability. • Provided technical support to the Sales Support Team, resulting in a 75% retention rate.

Educational background

Open Source Linux
Crator Computer Systems College of Professional Studies
Computer Architecture
Crator Computer Systems College of Professional Studies
Computer Network Architecture and Design
Crator Computer Systems College of Professional Studies

Languages

EnglishNativeSwahiliNative