jloosdev

@Jloosdev

Joerg Loos

Freelancer at JL Software Entwicklung

jloos.dev Joined May 2026

703 Points • 15 Badges • 11 Connections • 11 Followers • 14 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

verified

Fullstack Developer

Alfatraining

Issued Feb 2013 Show Credential open_in_new

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Comments

@[Spyros] "Couldn't agree more. The rewrite fantasy dies fast – usua...
May 22, 2026
@[buildbasekit] Exactly this. The excitement at the beginning – and ...
May 22, 2026
@[Hussein Mahdi] Good point, The Adapter Pattern is perfect for gradua...
May 22, 2026

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Discussions

"We need to rewrite everything from scratch." – said every CTO ever.
May 21, 2026

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Joined:	5 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.
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Website:	https://jloos.dev
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