Sinan Kalac · Web & Software Development

Web and software developer focused on TYPO3, React and modern web applications.

I develop and support web projects in an agency environment – from TYPO3 and Symfony to React, Next.js and TypeScript. My work includes technical project responsibility, coordination, deployments, CI/CD and quality assurance. The selected projects show how I build structured and maintainable solutions.

Portrait of Sinan Kalac

Selected Projects

MVP2025

Lernstack

Learning platform with flashcards, spaced repetition, statistics and secure JWT authentication.

Lernstack – project image 1
Next.js
React
TypeScript
+6
Prototype2025

Exoplanet Survivors

Top-down action game prototype with waves, cycle phases, loot drops and terminal-based upgrades.

Exoplanet Survivors – project image 1
C
raylib
Pixelart
+2
In active development2025

Portfolio (skalac.dev)

Modern developer portfolio with i18n, project pages, skills/background section and SEO structure.

Portfolio (skalac.dev) – project image 1
Next.js
TypeScript
TailwindCSS
+2

Professional Background

Experience & Education
  1. Web and Software Developer / TYPO3 Technical Lead · ISCOPE GmbH

    Since 2026 · OsnabrückCurrent
    • Frontend development with React/Next.js, TailwindCSS and component-based UI systems
    • Technical leadership and coordination of TYPO3 projects
    • Technical support for client projects in an agency environment
    • Project coordination, deployments, CI/CD and quality assurance
    • Work with TYPO3, WordPress, Odoo and custom integrations
  2. Apprenticeship as an Application Developer · ISCOPE GmbH

    2023–2026 · Osnabrück
    • Hands-on training in frontend, backend and database development
    • Fundamentals and projects with PHP/Symfony, Node.js, PostgreSQL and SQL
  3. Internship (Web Development) · ISCOPE

    2023 · Osnabrück
    • Fundamentals in CSS, JavaScript, SQL and PHP
    • Work with CMS systems: TYPO3, Twig and WordPress
  4. Computer Science Studies (B.Sc., not completed) · University of Osnabrück

    10/2022 – 03/2023 · Osnabrück
    • Computer science fundamentals
  5. Abitur · BBS Papenburg · Vocational Business High School

    08/2019 – 06/2022 · Papenburg
    • Exam subjects: German, business administration, economics (bilingual), computer science

Technologies & Expertise & Profile

Web Frontend

6 Technologies

TypeScript
React
Next.js
TailwindCSS
HTML
CSS

Backend & Data

6 Technologies

PHP
Symfony
Node.js
PostgreSQL
Prisma
SQL

CMS & Platforms

3 Technologies

TYPO3
WordPress
Odoo

Tools & DevOps

5 Technologies

Git
Docker
DDEV
CI/CD
Linux/WSL

Creative Tech

5 Technologies

C
raylib
Godot
Pixelart
Game Prototyping

Contact

Project or exchange?

Get in touch about web development, TYPO3, React/Next.js, Symfony and technical project support.

Send me a short message with your context and goal. I will reply with a concrete response.

Sinan Kalac – Web & Software Developer for TYPO3, React and Next.js