Available for opportunities
Sammy Kasango profile photo
Nairobi, Kenya

Sammy Kasango

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Architecting High-performance systems, secure networks, and growth-focused digital strategy.

I build high-performance digital infrastructure that help businesses scale, automate, and thrive in the modern competitive digital economy.

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3+ Years Experience
30+ Projects
99% Client Satisfaction

About
Me

I bridge software engineering, network infrastructure, and digital marketing to design and build scalable, secure, and growth-oriented digital systems.

My focus is not just on building technology — it's on delivering solutions that drive real business impact in today's digital economy. Based in Nairobi, Kenya, I work with startups, SMEs, and enterprises across East Africa and globally, helping them architect the infrastructure that drive their ambitions demand.

SDLC Software Development Network Engineering Web Development Digital Strategy Automation

Core Expertise

Three integrated disciplines. One unified digital infrastructure vision.

01

Software Systems

Engineering robust applications and automation tools that power modern business operations.

  • Web applications & portals
  • Automation & scripting tools
  • REST APIs & backend systems
  • Database design & optimization
02

Network Infrastructure

Designing and securing networks that form the backbone of reliable digital operations.

  • LAN/WAN architecture & design
  • Network security & hardening
  • VLAN, DHCP & routing protocols
  • System monitoring & optimization
03

Digital Growth Systems

Digital Marketing strategist combining tech with marketing intelligence for measurable market growth.

  • SEO-optimized platforms
  • Marketing funnels & automation
  • Analytics & performance tracking
  • Conversion-focused architecture

Technical Skills

⟨/⟩ Engineering

HTML / CSS90%
JavaScript78%
Python80%
APIs & Backend72%
C++75%

⬡ Networking

TCP/IP & Protocols85%
Cisco IOS / Packet Tracer80%
Network Security76%
VLAN / VLSM / DHCP82%
LAN/WAN Design78%

↗ Digital Marketing

SEO Optimization82%
Google Analytics75%
Conversion Funnels70%
Content Strategy78%
WordPress / CMS85%
Tools & Stack:
Git & GitHub WordPress MySQL VS Code Cisco Packet Tracer Tkinter ReportLab GitHub Pages Figma

Featured Projects

Selected work that demonstrates impact across the full digital infrastructure stack.

Software 2026

C++ Code Smell Detector

Problem: Manual code reviews in C++ projects miss recurring anti-patterns, slowing down team velocity.

Solution: A modular 35-file static analysis system with a Lexer, AST Builder, and 7 specialized detectors running 84 automated tests.

Impact Automated code quality checks — reduced review time and improved codebase maintainability across projects.
C++ASTLexerUnit Testing
GitHub
Software 2026

Church Union Management System

Problem: Manual church member management led to duplicates, lost records, and inefficient reporting.

Solution: Python desktop app with Tkinter UI, ReportLab PDF generation, duplicate prevention logic, and a professional dark-theme sidebar dashboard.

Impact Centralized member records, automated PDF reporting, and eliminated data duplication for a growing church organization.
PythonTkinterReportLabSQLite
GitHub
Network 2026

Enterprise VLAN Network Lab

Problem: University network simulation required segmented VLANs with inter-VLAN routing and dynamic IP allocation.

Solution: Full Cisco Packet Tracer topology with VLAN configuration, VLSM addressing, Router-on-a-Stick, and DHCP across multiple departments.

Impact Demonstrated production-grade network segmentation and routing skills ensuring secure Enterprise VLAN deliverable.
Cisco IOSVLANVLSMDHCPRoaS
GitHub
Digital 2026

Personal Engineering Brand & Portfolio System

Problem: Engineers with strong technical skills often lack a cohesive digital presence, making it harder to attract clients, collaborators, and career opportunities.

Solution: Built a unified personal brand system under @sammykasango — live GitHub Pages portfolio, SEO-optimized profile indexed on Google, consistent cross-platform identity across LinkedIn, GitHub, YouTube, and Facebook, and a structured content strategy targeting software and network engineering audiences.

Impact Google-indexed under "Sammy M. Kasango — System Software & Network Engineer." Consistent brand authority across 4+ platforms with growing technical content engagement.
HTML/CSSGitHub PagesSEOContent StrategyPersonal Branding
Live Portfolio GitHub

Case Study

A deep-dive into a real-world engineering challenge and how it was solved.

Featured Case Study

WiFi Billing & Hotspot Management Platform

01 The Problem

A small ISP provider in Nairobi was managing hotspot billing manually — tracking active sessions in spreadsheets, issuing vouchers by hand, and reconciling payments without any automation. Revenue was leaking, customer experience was poor, and the process was completely unscalable.

02 The Approach

I designed and deployed a self-contained billing system integrated with MikroTik RouterOS. The architecture separated the network authentication layer (RADIUS) from the billing frontend, allowing clean session management, real-time monitoring, and automated voucher generation.

03 Architecture

The system included: a Python-based admin panel, MikroTik API integration for session control, a MySQL backend for user and transaction records, and a simple customer-facing captive portal. Deployed on a local server with remote management capability.

04 Results

100% Billing Automated
60% Admin Time Saved
0 Revenue Leakage
PythonMikroTik APIMySQLRADIUSHTML/CSS

What I Build

End-to-end digital infrastructure services — from concept to deployment.

Website & Web App Development

Custom websites, web applications, and portals built for performance, conversion, and scalability. From landing pages to full-stack platforms.

  • Business websites & portfolios
  • E-commerce & booking systems
  • Admin dashboards & portals
  • WordPress & CMS solutions

Network Setup for SMEs

Reliable, secure, and scalable network infrastructure design and deployment for small and medium businesses — from cabling to cloud.

  • LAN/WAN design & deployment
  • VLAN & firewall configuration
  • WiFi & hotspot systems
  • Network audits & troubleshooting

System Automation

Python-powered automation scripts and tools that eliminate repetitive tasks, reduce errors, and free your team to focus on what matters.

  • Workflow & process automation
  • Data scraping & processing
  • Report generation tools
  • API integration & bots

SEO & Digital Optimization

Technical SEO, analytics setup, and digital growth strategies that turn your website from a digital brochure into a conversion machine.

  • Technical SEO audits
  • Google Analytics & Search Console
  • Performance optimization
  • Content & funnel strategy

Ready to build your digital infrastructure?

Let's Build Your System

Let's Work Together

Have a project, a problem, or just want to explore what's possible? Let's talk digital infrastructure.

Email hellosammykasango@gmail.com
WhatsApp Chat with me directly
LinkedIn Sammy M. Kasango
GitHub @sammykasango
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