Hi, I'm Crispus — the engineer behind Njumwa Labs.
I'm a Microsoft-certified Dynamics 365 Finance & Operations technical consultant in Nairobi, Kenya, holding three Microsoft Solution Architect Expert certifications — across D365 F&O, Azure and the Power Platform.
After a BSc in Computer Science at Egerton University, I joined Impax Business Solutions as a D365 F&O developer, where I delivered technical components on an enterprise insurance ERP go-live serving 200+ users across General Ledger, AR, AP, Fixed Assets, Inventory and Procurement. That's where I learned to build things that have to be reliable, secure and upgrade-safe under real production load.
Njumwa Labs is how I bring that same enterprise standard to SMEs, startups and founders — in Nairobi, Kenya and around the world — without the enterprise price tag. Whether it's a fast website, an AI automation that answers leads in seconds, a mobile app, a database that finally runs quickly, or deep D365 work, I'm the technical partner who can build it, automate it, and keep it running.
Microsoft-certified, multidisciplinary, hands-on.
The range isn't a gimmick — modern businesses run on connected systems, and I've worked across the whole stack that powers them.
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Dynamics 365 Finance & Operations
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Full-stack web development
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AI automation & agents
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Cross-platform mobile
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Database administration & data
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Cloud & Power Platform
Microsoft-certified across Dynamics 365, Azure & the Power Platform — including three Solution Architect Expert certifications.
Solution Architect Expert 3
- D365 F&O Solution Architect Expert
- Azure Solutions Architect Expert
- Power Platform Solution Architect Expert
Associate 5
- D365 F&O Developer Associate
- Power Platform Developer Associate
- Azure Administrator Associate
- Power BI Data Analyst Associate
- Fabric Analytics Engineer Associate
AI, Data & Foundations 4
- AI Business Professional
- Generative AI (Microsoft & LinkedIn)
- ML Specialization (DeepLearning.AI / Stanford)
- CS50 Python (Harvard / edX)
What you can count on.
Reliability
I do what I say, on the timeline I promise. Production systems have to be dependable — and so does the person building them.
Clear communication
No jargon walls, no silence. You get plain-language updates and regular demos so you always know where things stand.
Global standards, fair prices
Enterprise-grade engineering shouldn't be out of reach. I deliver international quality at prices SMEs and startups can actually afford.
Outcomes over output
I care about what the work does for your business — more leads, less manual effort, faster systems — not just shipping features.
Tools I reach for
- TypeScript
- React
- Next.js
- Astro
- Node.js
- Python
- Flutter
- PostgreSQL
- SQL Server
- MongoDB
- Azure
- AWS
- Dynamics 365 F&O
- X++
- Power Platform
- n8n
- OpenAI
- Power BI
How an engagement runs
- 01
Discovery
A free call to understand your goals, constraints and what success looks like. You leave with clarity even if we don't work together.
- 02
Proposal
A clear scope, timeline and fixed or milestone-based price. No surprises, no padded hours.
- 03
Build & ship
I build in focused iterations with regular demos, so you see progress and steer early — not at the end.
- 04
Support
Launch, monitoring and ongoing care. Systems need upkeep; I keep yours running and improving.
Let's talk about what you're building.
Book a free 20-minute call. We'll map the fastest path from where you are to a working system — no pressure, no jargon.