Full-stack software engineer · Uganda
I design and build scalable software solutions.
I’m Samuel Ssekizinvu — five years of production systems for fintech, edtech, and enterprise clients: payment platforms, mobile apps serving 10K+ people a day, and machine-learning models that earn their keep outside the notebook.
- Flutter & Dart
- Fintech systems
- Cloud & DevOps
- AI / ML
- Open to projects
✓ pay.gateway 200 OK · 342ms
✓ deploy acopesa-api v2.4.1
✓ 1,204 tx settled · 0 failed
tx volume — trailing 16 weeks
Career ledger
01Five years,
on the record.
Numbers from systems running in production today — not projections, not prototypes. The bottom line gets the double rule.
- Years shipping software
- 5
- Projects delivered
- 50+
- Daily active users
- 10,000+
- Packages on pub.dev
- 4
- Uptime, flagship platform
- 99.9%
Selected work
02Ten systems, in production,
with the receipts.
Settlr
AI bill-splitting — scan the receipt, share a link, guests claim their items and pay you back.
AI receipt scanning
No app for guests
AI OCR · Payments · Web + Mobile
02FlipScout
Resale intelligence for thrifters — scan an item, get a buy / risky / skip verdict from real sold-price data.
Verdicts in ~5 sec
eBay · Poshmark · Mercari data
Barcode scanning · Market data · Mobile
03CuratorAI
AI personal styling — learns your wardrobe, taste, and budget, then sends outfits you’ll actually wear.
50K+ people styling
2M+ outfits saved
Computer vision · Recommendations · Web
04Worket Jua Kali
The digital bridge for Uganda’s informal sector — verified artisan profiles, smart matching, jobs, and payouts in one app.
275+ artisans onboard
20K+ trained via hubs
Mobile · Search & matching · Chat
05PinnKET
Event ticketing and management platform — real-time analytics, high-traffic sales days.
10K+ daily users
99.9% uptime
Flutter · Firebase · Node.js · TensorFlow
Acopesa
Savings and payments fintech — wallets, ledger logic, and mobile-money rails built for audit-grade reliability.
99.8% success rate
High-volume transactions
React · Python · FastAPI · AWS
OurPesa
Blockchain-backed savings platform paying real returns to everyday savers.
5K+ active savers
12% APY returns
Go · PostgreSQL · Blockchain · Flutter
08HaloDish
Halal food discovery app connecting diners with verified restaurants.
2K+ restaurants
15K+ downloads
Flutter · PostgreSQL · Docker · Python
MuslimDX
Digital platform for a community of thousands — directory, content, and services.
8K+ active users
500+ restaurants
Flutter · Firebase · PostgreSQL · Docker
Applied ML
Custom machine-learning models for business clients — forecasting, vision, and NLP.
85% model accuracy
40% cost reduction
TensorFlow · PyTorch · Kubernetes
Services
03What I build for clients.
Fintech systems
Payment gateways, USSD flows, wallet and ledger logic, blockchain integrations. Built for audits and for 2 a.m. traffic spikes.
Mobile development
Flutter-first apps for iOS and Android, plus React Native when the team calls for it. From first commit to store release.
Web apps & dashboards
Admin panels, analytics dashboards, and customer-facing web apps that load fast and read clearly.
Cloud & DevOps
AWS and Azure infrastructure, Docker and Kubernetes deployments, CI/CD pipelines that ship without ceremony.
AI & data
Machine-learning models, computer vision, and NLP — trained, deployed, and monitored in production, not left in a notebook.
Custom SDKs
Payment, analytics, and authentication SDKs your own developers will actually enjoy integrating.
// Daily tools
Flutter & Dart · React & TypeScript · Python & Django · Node.js & FastAPI · Go · Java · PostgreSQL · MongoDB · AWS · Azure · Docker · Kubernetes · TensorFlow · PyTorch
Open source
04Four Flutter packages on pub.dev.
CS50 SDK Update
POS printer management for point-of-sale hardware.
Flutter Feature Tour
Customizable onboarding tours for new-feature discovery.
Structify Pro
Ergonomic struct creation for Dart.
Widget Hydrator
State persistence and restoration for Flutter widgets.
Word of mouth
05What clients say after launch.
“Samuel’s work on Acopesa was a game changer. His ability to scale systems while ensuring security was instrumental in processing 23M UGX monthly transactions.”
“His work with PinnKET’s real-time analytics helped us stay ahead of the competition, and the platform’s smooth performance speaks volumes about his skills.”
“Samuel’s approach to AI and machine learning solutions has significantly improved our data insights.”
Credentials & writing
06Certified where it counts.
- AWS Certified Solutions Architect
- Professional Cloud Architect
- Certified Kubernetes Administrator
- Blockchain Developer
- Technical Software Development
- Machine Learning Specialist
- React Developer Certification
Notes from production.
- Building Scalable Fintech APIs with Microservices
- Flutter vs React Native: A Technical Deep Dive
- Implementing Real-time Analytics at Scale
- Machine Learning in Production: Lessons Learned
- Securing Payment Systems: A Developer’s Guide
- Optimizing Flutter Apps for Enterprise Scale
Contact
07Have a system that needs building?
Let’s talk.
Tell me what you’re building and where it hurts. I usually reply within a day.
samuelkchris@gmail.com