SENIOR FRONTEND ENGINEERING · WEB SECURITY
Web experiences built to be secure, accessible and modern.
Modern web solutions focused on security, accessibility, clean architecture and long-term maintainability.
- Security by design
- Accessibility first
- Responsive widescreen
REAL WORKSPACE
Development Environment
KCC SYSTEMONLINE
Interface ready
JOCHEN KOPERNIKSenior Frontend Engineer
Web Development · Security20+ years experience
PROFILE
Technology with structure. Security with purpose.
I have been developing web solutions for more than 20 years with a focus on clear architecture, security, understandable interfaces and sustainable implementation.
The goal is not just working code, but solutions that remain understandable, maintainable and usable in real-world situations.
Frontend EngineeringSenior
Web SecurityAdvanced
AccessibilityAdvanced
PHP / Backend IntegrationExperienced
SERVICES
From interface to security baseline.
Structured development, technical optimisation and accessible interfaces built for real-world use.
Web Development
Responsive interfaces, modern websites and maintainable web applications.
Security Baseline
Sessions, CSRF protection, validation, secure authentication and hardening.
Accessibility
Keyboard navigation, focus guidance, contrast, forms and understandable UX.
Optimization
Performance, existing code, technical cleanup and sustainable structures.
PRODUCTS & PROJECTS
Own software, visible and understandable.
Products, learning environments and security tools are presented with clear status and purpose.
Secure Starter KitAVAILABLE
Secure Starter Kit
PHP Admin & Auth foundation with RBAC, 2FA, audit logs and secure sessions.
LAN-LABLIVE
LAN-LAB
Interactive network learning game with missions, terminal tasks, progress and rankings.
KCC Mail ForensikPREVIEW
KCC Mail Forensik
Windows application for explainable analysis of email artefacts, headers and risks.
KCC ACADEMY
Learn by understanding and safe practice.
A learning space for networking, security and modern digital skills — practical, understandable and safe.
Open Academy
KCC ACADEMY · LABS
Three learning worlds for practice, security and digital competence.
CONCEPT
Mail Detective
Learn to analyse phishing, headers, link destinations and email security safely.
PlannedCONCEPT
AI Safety Lab
Critically check AI answers, understand prompt injection and handle data safely.
PlannedSECURITY & ACCESSIBILITY
Not a badge. A technical foundation.
Security, usability and performance are built into architecture and interface instead of being added as marketing labels.
CSPCSRF2FA-readyRate LimitsWCAG-aware
KeyboardVisible focus and logical navigation
Reduced MotionAnimations respect user preferences
Secure SessionsServer-side session and cookie strategy
ResponsiveMobile to ultrawide without text deserts
SECURE WEB CHECK
Free website first check.
A quick technical overview of security, structure, accessibility, performance and basic visibility.
HTTPSSEO-BasisAccessibilityPerformance
Motto
Calm code. Clear design. Secure systems.
- Structured instead of chaotic
- Security built in
- Accessible and understandable
Support
Support KopernikSecure
LAN-LAB stays free. If you enjoy the projects and ongoing development, you can support KopernikSecure voluntarily — even a small contribution helps.
Support voluntarilyCONTACT
Talk about your project.
For project requests, technical optimisation or a secure new build, use the protected contact form.
Open contact