Software Engineer & Full-Stack Developer

I design and build scalable SaaS platforms, CRM systems, and AI-powered automation tools. Currently building the LeadsKE ecosystemβ€”serving sales, marketing, and operations teams across Africa.

Kelvin Irungu - Software Engineer

About

Technical Skills

  • JavaScript (ES6+) & Python
  • Next.js & React
  • Node.js & FastAPI
  • PostgreSQL & MongoDB
  • Docker & CI/CD

Expertise

  • SaaS Platform Design
  • CRM Systems
  • API Development
  • AI Automation
  • Lead Enrichment Pipelines

Location & Contact

  • πŸ“ Nairobi, Kenya
  • mwangikelvin3@gmail.com
  • +254 721 630 653
Tech workspace

Experience

Founder & Lead Software Engineer

CommerceMix Kelgen Enterprises / LeadsKE Ecosystem

Designed, built, and deployed multiple production-ready SaaS platforms serving marketing agencies, sales teams, and digital businesses globally.

πŸ“Š Leads.TechnicalOrders.Com – CRM & Marketing Automation Platform

  • β€’ Built a full-stack CRM system with lead tracking, pipeline management, and client activity monitoring
  • β€’ Implemented SEO tools, lead capture pages, and performance dashboards
  • β€’ Integrated SMS & Email automation for lead nurturing and follow-ups
  • β€’ Connected Meta Marketing API to track ad performance and campaign analytics
  • β€’ Designed subscription plans, user access control, and billing workflows

πŸ” EnrichLeadsKE.Vercel.App – Lead Enrichment & Data Intelligence System

  • β€’ Developed automated email & phone enrichment pipelines
  • β€’ Implemented real-time lead validation and enrichment workflows
  • β€’ Built APIs to process CSV uploads and return enriched lead datasets
  • β€’ Optimized data accuracy for sales and outreach teams

πŸ€– WorkLeadsKE.Vercel.App – Agentic AI & Operations Automation Platform

  • β€’ Built AI agents for: Sales follow-ups, Calendar scheduling & meeting booking, Client onboarding, Internal operations workflows
  • β€’ Designed autonomous task execution pipelines using AI + automation logic
  • β€’ Integrated chatbot-to-calendar booking workflows
  • β€’ Deployed system on VPS with Docker and Nginx for scalability

Impact:

Reduced manual operations by 60–80%Improved client conversion ratesManage 100s of leads daily

Software Developer & Research Officer

Commerce Mix Ltd

  • βœ“Developed web applications using JavaScript and Python
  • βœ“Built automation tools for lead generation and reporting
  • βœ“Created internal dashboards for business intelligence
  • βœ“Supported data-driven decision-making through analytics systems

Freelance Software Engineer & Automation Specialist

Upwork & Fiverr

  • βœ“Built custom web applications, APIs, and automation systems for clients
  • βœ“Delivered CRM setups, chatbot flows, and marketing automation solutions
  • βœ“Developed Python-based data processing and reporting scripts
  • βœ“Maintained long-term client relationships with repeat engagements

Education

Bachelor of Commerce (Actuarial Science)

Kenyatta University

KCSE – A- (76 Points)

Gitongu Secondary School

Technical Specialization

Backend & Databases

REST APIs, OAuth, webhooks, PostgreSQL, MongoDB, Supabase, real-time data processing

DevOps & Deployment

Docker, Nginx, VPS, Linux, SSL/TLS, CI/CD pipelines, PM2, cloud infrastructure

AI & Automation

Agentic AI systems, workflow automation, n8n, chatbot development, lead enrichment

Let's Connect

I'm open to new projects, collaborations, and opportunities. Whether you need a SaaS platform, CRM system, or AI automation, let's build something great together.