Security & Quality

Professional Code Review

Find security vulnerabilities before others do

With over 21 years of experience I analyze your code for security risks, performance issues and technical debt. Receive concrete recommendations.

Why is a code review important?

Hidden security vulnerabilities and performance issues can be expensive.

A professional code review uncovers weaknesses before they become real problems. Whether you have taken over an existing application, want to audit an external developer, or simply want to ensure your code is up to date.

  • Find SQL Injection & XSS vulnerabilities
  • Identify performance bottlenecks
  • Document technical debt
  • Best practices and clean code

Common issues I find

  • CriticalSQL Injection vulnerabilities
  • CriticalUnprotected admin areas
  • HighOutdated dependencies with CVEs
  • HighMissing input sanitization
  • MediumN+1 query problems
  • InfoOutdated PHP syntax

What does a code review include?

Comprehensive analysis of your code with concrete recommendations

Security Analysis

Check for OWASP Top 10 vulnerabilities, SQL injection, XSS, CSRF and other security risks.

Performance Analysis

Identification of bottlenecks, slow queries, memory leaks and optimization potential.

Code Quality

Assessment of architecture, design patterns, readability and maintainability of the code.

Dependency Check

Analysis of used libraries for known security vulnerabilities and currency.

Documentation

Detailed report with prioritized recommendations and solution proposals.

Discussion

Personal follow-up discussion of all findings with explanations and Q&A.

Code Review Packages

Quick Check

  • Security Scan
  • Dependency Check
  • Short report (2-3 pages)
  • Prioritized recommendations
  • Detailed code analysis

Ideal for smaller projects or a first overview.

Deep Dive

  • Everything from Quick Check
  • Detailed code analysis
  • Performance profiling
  • Architecture assessment
  • Detailed report (10+ pages)
  • 1h follow-up discussion

For complex projects and thorough analysis.

Request non-binding quote

Frequently Asked Questions about Code Review

Access to your Git repository (GitHub, GitLab, Bitbucket) or the source code as ZIP. Ideally also brief info about the application: what it does, which technologies are used, are there known issues?

A Quick Check is usually ready within 2-3 working days. A Deep Dive requires 5-10 working days depending on project size. We discuss the exact timeline in advance.

Absolutely. I treat your code strictly confidentially, work on secured systems and delete the code after the review is complete. On request I sign an NDA.

My focus is on PHP (Laravel, Symfony, CodeIgniter, WordPress) and JavaScript/TypeScript. For other languages I can draw on my network.

Yes, gladly. After the review you can commission me for the implementation of the recommendations. That way you have a contact person who already knows the code.

Request code review

Have your code reviewed by an experienced developer. I will get back to you within 24 hours.

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