Abdul Dumbuya
CCSI and CCNP Enterprise Network Engineer with 10+ years of experience
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About
CCSI and CCNP Enterprise Network Engineer with 10+ years of experience across Cisco Enterprise Networking, technical education, hands-on lab development and network support. Strong technical background in BGP, OSPF, EIGRP, MPLS, VRF, Cisco SD-Access, SD-WAN, Catalyst 9000 series and Cisco Catalyst (DNA) Center concepts with additional knowledge of wireless and network security fundamentals.
Experience in designing practical lab environment on various network topologies, using Packet Tracer, GNS3, and EVE-NG, and in reviewing curriculum and certifications-aligned with technical learning activities. Well suited to technical education roles requiring a combination of Cisco subject-matter knowledge, lab design, content review and clear communication. Maintaining ongoing knowledge development in Cisco Meraki, ThousandEyes, AI and related emerging Cisco technologies.
Experience
Training Instructor - QA Ltd - London
(2019-06 - 2025-06)
- Delivered Cisco technical training to professionals and apprentice, supporting certification focused learning and practical enterprise networking capacity.
- Designed and developed hands –on lab activities, using Packet Tracer
- Designed practical network scenarios and topologies to support configuration, troubleshooting and validation of enterprise networking concepts.
- Contributed to curriculum development for hybrid in-person and virtual technical courses and collaborated with stakeholders to improve course offering and outcomes.
- Developed and refined learning activities to accommodate different levels of technical experience learning needs.
- Delivered CompTIA Network+ and Windows 11 training to diverse technical audiences
- Supported technical learning across, including OSPF,EIGRP, IPv4/IPv6, ,VRF, MPLS, BGP and network infrastructure fundamental
Training Instructor and Support Administrator - 5E Ltd - London
(2016-06 - 2019-06)
- Delivered CCNA, City & Guilds Level 3/4, and PC Maintenance programs combine with theoretical and practical hands-on networking activities.
- Contributed to the development of Cisco training portfolio and improved learner engagement and certification outcomes.
- Collaborated on the design and development of curriculum materials covering infrastructure networking and IT security.
- Created practical technical hands-on lab exercises and learning resources using Cisco Packet Tracer, GNS3 and EVE-NG to support certification preparation.
- Supported the organization's internal network infrastructure, working as part of a cross-functional IT support team.
Cisco Instructor - Kepnoch College - London
(2014-06 - 2016-06)
- Prepared learners for CCNA certification through structured technical instruction, hands on labs and examinations guidance.
- Deliver Microsoft Word, Excel and Database training
- Designed practical networking activities and training materials to reinforce routing, switching and enterprise networking concepts.
- Provided technical and maintenance support for the institution's network infrastructure
- Designed training and supporting materials for Microsoft Office training
Consultant - Consultancy
(2011-01 - 2013-06)
- Consultation on training development and accreditation for training institutions in Sierra Leone.
- Provided logistics and aggregate support for several mining companies in Sierra Leone.
Director/Trainer/Project Manager and Network Support Engineer - UXL
(1999-04 - 2010-11)
Delivered technical training, network support and project management activities.
Education
PGDip - General Management - University of East London (2011)
BEng (Hons) - Computer & Information Engineering - South Bank University (1997)
Level 4 Certificate - Teaching - Tower Hamlets College (2006)
