Healthcare Systems
Audit-ready event logging for sensitive research data workflows and role-based clinical records.
SOFTWARE ENGINEER · FULL-STACK BUILDER · PRODUCT LAB
Building production-ready digital systems for real-world problems.
Liwei Labs builds scalable digital platforms across healthcare, fintech, AI, Web3, and cloud infrastructure.
Backend ArchitectureCloud DeploymentProduct Engineering
bash — liweilabs.xyz
$tree liweilabs
liweilabs
├──healthcare-systems
├──fintech-platforms
├──cloud-infrastructure
├──ai-experiments
└──web3-products
status:building in public
mode:production-first
base:Kenya · Global
About Liwei Labs
Liwei Labs is a software engineering lab focused on turning complex workflows into reliable digital systems. The lab combines backend architecture, frontend implementation, databases, cloud deployment, and product thinking to build scalable, secure, and production-ready platforms.
Backend ArchitectureCloud DeploymentProduct Engineering
Core Engineering Focus
Domains where I design, build, and deploy production-grade systems.
Fintech Infrastructure
Wallet systems, ledger patterns, and automated reconciliation for transactional integrity.
Cloud & DevOps
VPS hardening, Nginx configuration, CI/CD pipelines, and production infrastructure monitoring.
AI & Web3 Labs
AI-assisted workflows, smart contracts, verification systems, and blockchain experiments.
Featured Systems
A selection of production-grade solutions architected for reliability and scale.
ReactASP.NET Core
KEMRI EDC System
Clinical data capture platform for screening, enrolment, ANC visits, delivery, closeout, audit logs, and role-based workflows.
● Role-based access● Audit trail foundation● Production API deployment● Clinical workflow validation
View Case Study PostgreSQL Ledger
AirSave V2
Fintech savings platform with wallet architecture, PostgreSQL, Prisma, double-entry ledger design, payment intents, and reconciliation foundations.
Live ProductionSystem Specs
SolidityReactMoonbeamWeb3
Green Credit
Climate and Web3 rewards platform for verifying eco-actions and rewarding sustainable behavior through blockchain-based incentives.
Smart contract rewards
Eco-action verification
Eco-SystemDetails
Next.jsTypeScriptTailwind
Halisi Home Furniture
Premium furniture catalog and order-inquiry experience with product discovery, customer workflows, and admin foundations.
Product catalog
Order inquiry flow
PrototypeDetails
Architecture Mindset
The core engineering principles I follow to ensure systems survive real users, real data, and deployment constraints.
PRINCIPLE 01
Data integrity first
Schemas, validations, and audit logs are the foundation. A system is only as good as the reliability of its data.
PRINCIPLE 02
Production-ready always
Code isn't finished until it's deployed, secured, and monitored. Architecture must account for operational reality.
PRINCIPLE 03
Systems thinking
Treating infrastructure and software as a single cohesive unit. Optimization happens across the full stack.
Engineering Notes
Technical insights from real-world builds and architecture decisions.
Backend / Data Integrity
Designing audit trails for clinical data systems
Technical patterns for audit-ready event logging for sensitive research data workflows.
Database Architecture
Moving a fintech platform from MongoDB to PostgreSQL
Lessons from migration planning, schema design, and relational modeling decisions during data migration.
DevOps
Deploying ASP.NET Core behind Nginx with HTTPS
Blueprint for deploying ASP.NET Core apps behind Nginx with optimized security headers.
Let's build something production-ready.
Have a system, product idea, or technical workflow that needs to become reliable software? Liwei Labs can help turn it into a scalable platform.