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Emmanuel K.
@kipkirui_ronoh
Level 1
Payment Gateway Expert and Full Stack Developer
Kenya
English, Swahili
About me
Hi there!
I’m a Blockchain, Fintech & Full-Stack Developer with 6+ years of experience building secure, scalable web and mobile applications. I specialize in payment gateway integrations (Stripe, PayPal, M-Pesa, Flutterwave, Paystack), Web3 & fintech solutions, bug fixing, and custom full-stack platforms like e-commerce and booking systems. I focus on clean code, security, and production ready results. Friendly, responsive, and committed to delivering on time. Let’s build something great!
Skills
Emmanuel K.
$20/hour
Offline •
Average response time: 1 hour
See my services
API & Integrations
I will integrate stripe, paypal or mpesa payment gateway in your website
Bug Fixes
I will debug and fix javascript, react, node or API errors fast
Want to work on an hourly basis?
Tell Emmanuel K. what you need.
$20
/
hourPortfolio
Work experience
Tech Lead
CalabrixTech • Self-employed
Mar 2025 - Present • 1 yr 2 mos
As the Tech Lead at CalabrixTech, I drive the development of innovative web, mobile, and fintech solutions from concept to production. I lead a team of developers, oversee project architecture, and ensure the delivery of secure, scalable, and high quality software. My responsibilities include mentoring team members, implementing best coding practices, integrating payment gateways, and delivering custom full-stack platforms for clients. I focus on innovation, clean code, and timely project delivery, helping the company create impactful technology solutions.
17 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 17 Reviews
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Most relevant
libanahmed262
Repeat Client
United States
I came back to work with Emmanuel again, and that alone says a lot about how good he is. After my first experience with him, I didn’t hesitate to return. He fixed issues that another developer had messed up and got everything working properly. Emmanuel is reliable, professional, and easy to work with....
Seller's Response
Helpful?
libanahmed262
Repeat Client
United States
Emmanuel was great to work with. He’s very knowledgeable and took initiative right away, even setting things up on his own to keep things moving. That made the whole process much easier for me. The M-Pesa integration looks well structured and professionally done. He kept me updated and delivered exactly...
Seller's Response
Helpful?
kerrylmusungu
Repeat Client
Congo [DRC]
I highly recommend Emmanuel for his outstanding work and professionalism. He helped my team successfully integrate a payment API for the Democratic Republic of Congo, and everything is working perfectly. Emmanuel demonstrated exceptional technical expertise, efficiency, and clear communication throughout...
Seller's Response
Helpful?
rodrigo12344
United States
Excellent work on a complex PayPal PPCP integration audit. Emmanuel identified all critical issues, delivered clean code fixes, and provided a complete IWT submission package including API samples, compliance matrix, video recordings, and questionnaire answers. Professional, communicative, and detail-oriented....
Seller's Response
Helpful?
nooncapital
Kenya
Order Canceled
Please read this before hiring. We brought this developer on for a simple, well defined job. To build an M-Pesa payment gateway add-on that sits on its own without touching our existing system. A model was also shared with him for reference. We were clear about this from day one. He agreed, and then...
Seller's Response
Helpful?
