Julien Desouza
Offer Julien work on your next project.
Rating
Language proficiency level
CV
Full-stack SaaS developer — Next.js + AI products, shipped MVPs in one sprint
I build production-grade SaaS products fast. Most recently I shipped PromptArmor, an AI prompt security testing
platform, in a single sprint — auth, billing, dashboard, attack engine, the works.
**Live demo:** https://promptarmor-six.vercel.app
**What I'm best for**
- Founders who need their MVP shipped, not over-architected
- Teams adding AI features (chat, RAG, agents, prompt-driven flows)
- Existing apps that need an experienced pair of hands on Next.js 15/16
**Rates**
- Hourly: $50/hr
- Fixed-bid for scoped projects (preferred — aligns incentives)
- Available ~30 hrs/week, async-friendly
Skills and abilities
Programming
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AI & Machine Learning
from 20 USD for hour
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Bot Development
from 3000 USD for project
-
Cryptocurrency & Blockchain
from 5000 USD for project
- Data Parsing
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Databases & SQL
from 20 USD for hour
- Desktop Apps
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HTML & CSS
from 20 USD for hour
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Java
from 40 USD for hour
- Javascript and Typescript
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Python
from 20 USD for hour
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Web Programming
from 20 USD for hour
Design & art
Services
- AI Consulting
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Cybersecurity & Data Protection
from 30 USD for hour
- Data Processing
- Information Gathering
- Online Stores & E-commerce
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Payment Systems Integration
from 30 USD for hour
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Website Development
from 500 USD for project
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Website Maintenance
from 1000 USD for project
Photo, Audio & Video
Mobile development
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App Development for Android
from 40 USD for hour
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Apps for iOS (iPhone and iPad)
from 50 USD for hour
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Hybrid Mobile Apps
from 50 USD for hour
Administration
- DevOps
- Linux & Unix
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Software & Server Configuration
from 40 USD for hour
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System & Network Administration
from 40 USD for hour
- Windows