Ndohnwi
Declan
Technology Architect·Douala, Cameroon
20+ years of professional technology delivery across cloud, cybersecurity, AI automation, VoIP, and SaaS. AWS Certified Solutions Architect. CompTIA Security+. Google AI and Cybersecurity certified. Available for remote engagements globally.
Systems architect with over 20 years of professional technology delivery spanning telecommunications, networking, IP video, enterprise infrastructure, cloud architecture, cybersecurity, automation, and artificial intelligence. Career began in 2005 engineering carrier VoIP infrastructure for an international reseller carrying 300,000 minutes per month, and has progressed through enterprise surveillance systems for national government, hotel IT architecture, ISP media platforms, and now cloud, AI, and SaaS product engineering.
On the cloud side, I design and deploy production AWS environments with a focus on resilience, cost efficiency, and security posture. On the security front, I implement risk frameworks aligned with NIST CSF and CIS Controls, conduct technical audits, and build defensive infrastructure, validated by CompTIA Security+ and Google Cybersecurity certifications.
I build AI-powered automation and SaaS products, including TewaGo, a Business Operating System for WhatsApp I founded and architected in 2025, now live in beta. Current work designs and builds systems combining AI, cloud, software, security, and automation into production-grade platforms.
The defining capability is not tied to a single technology. It is the ability to enter an unfamiliar technical domain, understand how complex systems fit together across layers, select appropriate technologies for the constraints at hand, and turn that into production systems that are secured, monitored, documented, and maintained. Remote-first by default, operating effectively across time zones with structured async communication and full documentation discipline.
20 Years
of Delivery
Founder and Technical Architect, TewaGo
2025 – PresentSaaS · AI · WhatsApp Business Operating System
Architected and built TewaGo, a multi-tenant SaaS platform providing businesses with CRM, AI assistants, bulk messaging, chatbot workflows, shared team inbox, advertising integrations, and AI-driven customer acquisition. Live in beta with active business testers ahead of official launch.
Independent Technology Consultant & Systems Architect
2010 – PresentCloud · Cybersecurity · AI · DevOps · Infrastructure
Independent consulting across cloud architecture (AWS), cybersecurity, AI automation, software engineering, and infrastructure for clients across Africa and internationally. Delivered production environments, security audits, AI workflow systems, and SaaS platforms across multiple industries.
Lead Technical Consultant, Swecom ISP
2012 – 2014IPTV · Video-on-Demand · Streaming Infrastructure
Led architecture and implementation of an IPTV and Video-on-Demand platform serving 2,000+ subscribers across five cities. Designed server architecture, selected technology stack, provisioned streaming infrastructure, and integrated the platform with the ISP's network environment.
Lead Systems Architect and IT Engineer, Chariot Hotel
2010 – 2012Enterprise IT · Windows Server · Property Management
Designed and deployed the hotel's complete IT environment: IP network, Windows Server 2008 R2, Active Directory, Microsoft Exchange, eZee property management system, electronic access control, and IP video surveillance. Led IT support for all hotel operations.
Lead Systems Architect, Essoka Security / DGSN
2007 – 2010IP Video Surveillance · ANPR · Government Security
Lead architect for a 64-camera enterprise IP video surveillance deployment at Cameroon's national police authority headquarters, across 4 floors in 2 buildings, with video analytics, ANPR licence plate recognition, and a dedicated secure monitoring and control room.
Cambridge Certified Security Associate (CCSecA)
2008 – 2010Network Security · Cryptography · Security Principles
Completed the Cambridge Certified Security Associate programme through Cambridge International, covering network security, cryptography, and security principles. Listed on the Cambridge alumni register with ID 412046721.
Cisco Certified Network Associate (CCNA)
2006 – 2010TCP/IP · Routing · Switching · Cisco Technologies
Obtained CCNA certification, consolidating the networking foundation in TCP/IP, routing, switching, network troubleshooting, and Cisco technologies that underpinned all subsequent infrastructure and security engineering work.
VoIP and Telecommunications Engineer, Telcan Canada
2005 – 2007VoIP · SIP · Class 5 Softswitch · 300K min/month
Engineered and maintained VoIP/telecom infrastructure for an international reseller: 17 SIP trunks, Class 5 softswitch configuration, GSM gateway integration, call-centre infrastructure, DID management, carrier interconnection, and QoS for ~300,000 call minutes per month.
Certifications
Verified credentials from globally recognized certification bodies.
CompTIA Security+
CompTIA | Security Domain Certification
Covers threat management, cryptography, IAM, PKI, secure network architecture, and risk assessment methodologies. Industry benchmark for cybersecurity professionals.
Verify on Credly →AWS Certified Solutions Architect
Amazon Web Services | Associate Level
Demonstrates ability to design distributed systems on AWS with optimal availability, cost efficiency, fault tolerance, and scalability using AWS services and best practices.
Verify on Credly →Google Cybersecurity Certificate
Google | Professional Certificate
Covers threat identification, security information and event management (SIEM), network security, Python for security automation, and Linux system administration for security.
Verify on Credly →Google AI Fundamentals
Google | AI Fundamentals
Applied AI concepts, machine learning fundamentals, LLM deployment, responsible AI principles, and integration of AI capabilities into production applications and business workflows.
Verify on Credly →Cambridge Certified Security Associate
Cambridge International | Security Certification
Security associate certification covering network security, cryptography, and security principles. Completed 2008 to 2010. Listed on the Cambridge alumni register with ID 412046721.
Verify on Alumni Register →Available for Remote Engagements
If you need cloud infrastructure, cybersecurity, AI automation, VoIP, or SaaS development delivered remotely, get in touch.