01 / 03
Consulting
Software architecture, technical reviews and improvements to existing systems, focused on scalability, security and continuous delivery.
- Architecture and technical review
- Cloud, Kubernetes and CI/CD
- Observability and performance
Consulting · Websites · Custom systemsJoinville, SC, Brazil
Websites and custom systems
From idea to production: I plan, build and support your project with the same quality as systems used by hospitals and payment companies.
- Company websites
- Landing pages
- Web systems
- Mobile apps
- Admin dashboards
- Integrations
- Payments
- Cloud
- Consulting
Services
From diagnosis to production: I help companies get ideas off the ground and evolve the systems they already run.
02 / 03
Websites
Company websites, landing pages and portfolios that are fast, responsive and optimized to rank on Google.
- Company sites and landing pages
- SEO and performance
- Deployment and domain set up
03 / 03
Custom systems
Web and mobile systems built from scratch for your business, from admin dashboards to payment and WhatsApp integrations.
- Web systems and dashboards
- APIs and integrations
- Mobile apps
How it works
First conversation
I learn about your business, the problem to solve and the goals of the project.
Proposal
You get a defined scope, timeline and budget before we start.
Development
Frequent deliveries so you can follow progress and give feedback.
Launch and support
Production release, guidance on how to use it and follow-up after delivery.
Projects
Some of the systems I have designed and built.
KD
KStar
Developer Desktop IDE
- Tauri
- React 19
- Rust
- TypeScript
AP
Aortyx Pay
Hospital Payment Hub
- Quarkus
- Java 21
- React
- PostgreSQL
WH
WorkIQ
Healthcare Workforce Platform
- Quarkus
- Java 21
- Next.js
- React
AM
AVHealth
Multichannel Messaging
- Quarkus
- Java 21
- WhatsApp API
- SMS (Texra)
NL
Neural Lens
AI Safety Monitoring
- Python
- PyTorch
- YOLO
- OpenCV
Fabrikando
Manufacturing ERP (SaaS)
- Quarkus
- Java 21
- Angular
- Next.js
Clients
Companies I have designed and built systems for.
AVHealth
Healthcare and messaging
Aortyx Pay
Hospital payments
WorkIQ
Healthcare workforce
Neural Lens
AI and workplace safety
Fabrikando
Manufacturing ERP
Who builds it
Senior full stack software engineer.
I'm Andrei Avelino. I have led teams and shipped critical systems for healthcare, payments and manufacturing, and now I bring that experience to companies and people who need technology done right.
See my portfolioExperience in
- Healthcare and hospital systems
- Payment hub with PIX and cards
- SaaS ERP for manufacturing
- AI and computer vision monitoring
Let's get your project off the ground
Tell me about your project and I will get back to you with a proposal.
Request a proposalFollow on Linkedin
@andreixhz
Follow on Github
@andreixhz