Freelancer profile translated to English.

Description

Web development with technical expertise

As a freelance web developer, I conceptualize and develop individual WordPress solutions with a focus on performance, GDPR compliance, and sustainable scalability. Through my technical expertise in IT audits and modern frontend development (React, TypeScript), I realize technically demanding projects with long-term maintainability.

Languages

English
Native or bilingual
Polish
Native or bilingual
German
Native or bilingual

Workplace preferences

Remote only

Primarily works remotely

Hoenicke Systembetreuung GmbH
IT Auditor
MEDICAL
October 2023 - February 2024 (4 months)
Stralsund, Germany
IT Security & Compliance for Practices & Therapists

Technical audits according to BSI IT-Grundschutz/GDPR – vulnerabilities identified & resolved
Remote maintenance & hardening of IT systems (e.g., firewalls, backups, access controls)
Training employees on IT security (passwords, phishing, data protection)
Documentation & compliance for KV-secure processes (e.g., digital patient records)
IT Security Testing & Quality Assurance IT Strategy Training & Awareness
one2Marketing
WordPress Developer
DIGITAL AND IT
July 2022 - October 2022 (3 months)
Mühlheim, Germany
Modern Websites with a Focus on Performance & GDPR
I develop fast, secure, and user-friendly websites – from WordPress to React/TypeScript frontends. My focus:
Performance Optimization (Core Web Vitals, Lighthouse Score >90, Caching Strategies)
Responsive & Accessible Designs (Mobile First, UX/UI Tests, WCAG)
GDPR-compliant Solutions (Cookie Consent, Privacy Policies, Secure Plugins)
SEO & Conversion (Meta Tags, Structured Data,)
IT Security (SSL, Firewalls, Regular Audits)
Result: Websites that load quickly, convert, and are legally compliant – for businesses that want to succeed online.
SEO Optimization Performance Optimization CMS Customization WordPress GDPR
beRARE MEDIA
WordPress Developer & Web Designer
DIGITAL AND IT
October 2019 - January 2020 (3 months)
Nauheim, Germany
Project Management for Websites – From Idea to Maintenance
I manage web projects holistically – from conception to implementation and long-term support. My focus:
Project Management (Scheduling, Budget, Stakeholder Communication)
GDPR-compliant Websites (Cookie Consent, Privacy Policies, Secure Hosting Solutions)
Content Maintenance & CMS Management (WordPress, Regular Updates, Backups)
Maintenance & Development (Performance Optimization, SEO, Usability Adjustments)
Quality Assurance (Tests, Bug Fixing, Compliance Checks)
Result: Websites that are legally compliant, user-friendly, and successful in the long term.
WordPress (GDPR, Performance, Custom Plugins) GDPR Content Integration Data Privacy WordPress Maintenance

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Computer Scientist for Game & Multimedia Development
Berufsförderungswerk SRH Heidelberg
2018
Informatiker für Game- & Multimedia-Entwicklung
Training as an IT Clerk
Berufsförderungswerk Frankfurt
2018
Ausbildung zum Informatikkaufmann

Sven Hajer

Full-Stack Dev (React + WordPress)

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