Open to opportunities

David Jumbi

@davidjumbi

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Senior Security Engineer specializing in network, cloud, and SASE solutions.

Kenya

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What I'm looking for

I seek a senior security role where I can design and secure hybrid cloud networks, lead technical teams, provide presales expertise, and work in a collaborative, security-focused environment that values continuous improvement and professional growth.

I am a Senior Security Engineer with deep expertise in firewall platforms (Palo Alto, FortiGate, Cisco Meraki, Sophos), SASE, EDRs, SD-WAN and AWS cloud networking. I have a proven track record designing and deploying complex network and security architectures, leading migrations to hybrid cloud, and improving operational security posture through incident response, vulnerability management and continuous process improvements.

I deliver technical presales support, customer-facing presentations and internal trainings, mentor junior engineers, and lead cross-functional teams to achieve measurable outcomes — including reductions in latency, improved availability, and increased proposal win rates. I hold multiple industry certifications including AWS Advanced Networking, Palo Alto PCNSE and Cisco Data Center credentials.

Experience

Work history, roles, and key accomplishments

Current

Senior Systems Engineer

Current

NetworkIQ

Jan 2024 - Present (1 year 8 months)

Maintain and monitor core security infrastructure, lead incident response and vulnerability remediation, and present quarterly customer security posture reports while driving continuous improvements across security operations.

WAF IAM ZTNA VPN SIEM Incident Response

Presales: Security and Networks

Crescent Tech

Oct 2023 - Apr 2024 (6 months)

Delivered technical presentations and bespoke firewall, EDR and WAF solutions, led POC design and internal sales training, and supported clients with vulnerability assessments and post-sales technical support.

EDR SIEM WAF Firewalls Vulnerability Assessment Training Pre Sales

Pre-sales: Security and Networks

Hiperdist Limited

Jul 2022 - Aug 2023 (1 year 1 month)

Provided sales support and solution expertise for firewalls, EDRs, SASE and SD-WAN, executed POCs and demos, and enabled channel partners through training and multi-technology design sessions.

PoC Delivery Firewalls SD WAN EDR WAF POC Delivery Solution Architecture

Systems Engineer

Onelife Consultants

Jun 2016 - Jun 2022 (6 years)

Coordinated security monitoring and incident management, implemented and managed EDR and log aggregation systems, and designed network security protocols and application delivery solutions.

EDR Network Security WAF Cisco Fortinet Incident Response

Education

Degrees, certifications, and relevant coursework

United States International University (USIU)

Master of Science, Information Systems and Technology

2016 - 2018

Grade: 3.45 GPA

Completed an MSc in Information Systems and Technology with a major in Internet Security and Cybercrime, focusing on advanced security topics and cloud networking.