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jloosdev

@Jloosdev

Joerg Loos

Freelancer at JL Software Entwicklung
jloos.dev Joined May 2026
702 Points • 14 Badges • 9 Connections • 9 Followers • 12 Following
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About

Fullstack Freelancer | Legacy Modernization | Java 8 → Spring Boot 3 | PHP → React/Next.js | Fixed Price, 4-6 Weeks

I'm Jörg – a fullstack developer specialized in legacy moderniz... Show more

Top Skills

Java • Spring Boot • React • JavaScript • Angular • PHP • PostgreSQL • MySQL • AWS • TypeScript • Html • CSS • Terraform

Experience

Freelancer

JL Software Entwicklung
Jan 2019 - Present

Licenses & Certifications

Fullstack Developer

Alfatraining
Issued Feb 2013 Show Credential open_in_new

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Contributions
Joined: 4 months (since May 21)
Full Name: Joerg Loos
Headline:
About: Fullstack Freelancer | Legacy Modernization | Java 8 → Spring Boot 3 | PHP → React/Next.js | Fixed Price, 4-6 Weeks

I'm Jörg – a fullstack developer specialized in legacy modernization.

???? What I do:
Old Java 8 or PHP systems that nobody wants to touch anymore – I modernize them step by step. No rewrite. No downtime.

???? My Stack:
Backend: Java (Spring Boot), PHP
Frontend: React, Next.js, TypeScript
Databases: PostgreSQL, Redis
DevOps: Docker, CI/CD, Deployment

???? How I work:
Fixed price. 4-6 weeks. You keep the code. No big bang. No drama.

???? My recent wins:
→ 13,000+ LinkedIn impressions in one week
→ 11,600+ impressions for a technical post (Java 8 vs. Java 21)
→ Multiple posts with 500+ impressions

????️ My own projects:
Revenue Inspector, EÜR Navigator, FinVault – I know how SaaS works.

You have a legacy system that needs modernization? Hit me up. Let's find a solution.
Location:
Website: https://jloos.dev
Languges & Tools:
Currently Exploring:
Achievements:
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