Development services · Warsaw, Poland

Web security Warsaw

Secure web applications: input validation, auth hardening, HTTPS, headers, OWASP-minded reviews and fixes for SQL injection, XSS and CSRF.

Discuss your project

Security services

✓OWASP Top 10 review and remediation
✓SQL injection and XSS prevention in legacy code
✓CSRF tokens, CSP headers and secure cookies
✓Password hashing (bcrypt/Argon2) and 2FA setup
✓Rate limiting and brute-force protection
✓Dependency vulnerability scanning (Composer/npm)
✓SSL/TLS configuration and HSTS

Security mindset

Security is layered - no single plugin makes you safe.

I assume inputs are hostile and outputs are encoded.

Admin panels get IP allowlists or 2FA when exposure is high.

EU projects: GDPR access logs and data minimization in APIs.

US projects: session fixation and secure payment redirect flows.

Security practices

OWASPHTTPS/TLSCSPWAF basicsLaravel SecurityHelmet.js2FA (TOTP)Snyk / Composer audit

Warsaw · Poland · Europe · USA

Remote-first development with local presence in Warsaw - the same senior engineer for Polish, European and American clients.

Warsaw

Security audit for Warsaw businesses handling customer and payment data.

Poland

Hardening Polish WordPress and Laravel apps after incidents or before audit.

Europe

GDPR-aligned access control and encryption at rest where required.

USA

Security review before US launch or investor technical due diligence.

Development + SEO

We do not only build - we promote

A secure site stays indexed - malware and soft-404s destroy rankings. I fix vulnerabilities and maintain SEO so Google trusts your domain long-term.

Website promotion & SEO

About me

I'm Viktar Liukevich

Full-stack developer · 15+ years creating web

I am Viktar Liukevich, a web security specialist in Warsaw. I have cleaned hacked WordPress sites and closed SQL holes in legacy PHP - prevention and layered hardening beat emergency recovery.

Security is not a plugin: input validation, secure headers, 2FA on admin panels and dependency audits. EU projects get GDPR-aligned logging; US projects get payment redirect flows reviewed before launch.

For formal penetration tests, compliance reviews (SOC2-minded) or dedicated security code review on large codebases, I work with security partners in Poland, Europe and the USA - certified pentesters and AppSec engineers under NDA. I remediate findings in your stack myself.

300+

Completed Projects

90+

Clients

10+

Partners

Advantages

15+ years working for myself
Wide technology stack
Rapid development
Warranty and support
Global quality standards
Working with clients worldwide
Innovative technological solutions

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