01/ 04
SaaS products & business apps
From MVP to the version that scales: auth, billing, payments, APIs, back-offices. Shipped clean, tested, documented.
- Angular
- .NET
- NestJS
- TypeScript
Full-Stack Developer — Freelance
Waterloo, Belgium
I design and build web products that hold up under pressure: SaaS, fintech, business apps. From the first pixel to production.
JulienMilo
Scroll
Local time--:--
(01)About
Since 2018, I've been turning complex business problems into software that is simple, fast and reliable. Trained in UI/UX design as much as in engineering, I own the whole chain: architecture, interface, API, database, cloud. My favourite playground is fintech, where every transaction counts and failure is not an option.
About
- Based in
- Waterloo, Belgium
- Languages
- FR · PT · EN · ES
- Focus
- SaaS · Fintech · Business apps
- Status
- Freelance, open to work
2018Writing code since
1000+Payment terminals connected
100k+Transactions processed monthly
4Languages spoken
(02)Expertise
What I dobest
Four areas where I ship real work, from scoping to production.
02/ 04
Fintech & payments
Automated billing systems, high-volume transaction flows, cryptography and certification requirements. The kind of code where cents matter.
- Billing
- Terminals
- ISO
- Security
03/ 04
Cloud & DevOps
AWS infrastructure, containers, CI/CD pipelines, monitoring. Boring deployments, because that's how deployments should be.
- AWS
- Docker
- CI/CD
- PostgreSQL
04/ 04
UI / UX design
Trained in design as much as in code. Clear interfaces, consistent design systems, micro-interactions people come back for.
- Figma
- Design systems
- Motion
- Accessibility
Expertise
(03)Experience
Where I leftmy mark
Consulting engagement through EachStapp (Brussels). Building the SaaS that runs speed cameras and lidars for the Belgian police: fleet management, photo capture, ticket issuance, cryptography for ISO certification.
- Angular
- .NET
- Cryptography
- Product
- Consulting
Client billing application driven by payment terminal transactions. Fee modelling, reconciliation, automated generation and delivery.
- Angular
- NestJS
- PostgreSQL
Internal Angular tooling for company productivity and an automated billing system connected to thousands of payment terminals, processing hundreds of thousands of transactions a month.
- Angular 19
- Spring Boot
- NestJS
Education
- 2024HE2BComputer engineering
- 2018Royal Victor HortaComputer science
Experience
(04)Stack
Everydaytools
Front-end
- Angular
- TypeScript
- React
- Tailwind CSS
- GSAP
- Three.js
- Ionic
Back-end
- .NET / C#
- NestJS
- Node.js
- Spring Boot
- Java
- REST & OpenAPI
Data
- PostgreSQL
- MySQL
- Prisma
- ETL & batches
- Redis
Cloud & Ops
- AWS
- Docker
- CI/CD
- Linux
- Monitoring
- GDPR
Design
- Figma
- Photoshop
- Illustrator
- Design systems
- Prototyping
Stack
(05)Contact
Got a projectin mind?Let's talk.
Reply within 24h. Available for freelance missions, on site (Brussels, Liège, Lille) or remote.
Elsewhere