Code review and security audit

Your product works, but does it hold up under pressure? Maybe you inherited a codebase, built it fast with a changing team, or want to know in black and white where it stands before a funding round. We review your code with the eyes of developers who ship production software every day, and tell you honestly what holds up and what needs attention.

Is your code mostly built with AI tools like Lovable, Cursor or ChatGPT? Then our vibe coding audit is a better fit, aimed specifically at AI-generated MVPs. Need work done afterwards? We pick that up through managed development or software development support.

When does a code review pay off?

📈

Before a funding round or acquisition

Investors and buyers want to know what they're taking on. A technical due diligence gives them, and you, an honest picture of the code, the team and the risks.

🧭

You inherited a codebase

A founder left, an agency delivered, or the old team is gone. We map out what you have, what works and where the time bombs are.

🚀

Right before you scale

What works for a hundred users doesn't have to work for ten thousand. We test your architecture at scale before growth catches up with you.

🔒

A security or compliance question

A client asks for a security statement, you need to meet GDPR, or you suspect a leak. We test your codebase against the OWASP Top 10 and common requirements.

🔍

Doubt about what was delivered

An external party built your product and you want to be sure the quality is there. We give an independent verdict, with no stake in the answer.

⚠️

The gut feeling something is off

Releases keep taking longer, bugs come back, nobody dares touch certain code. Often there's a structural problem underneath that we surface.

Our review process

Intro and scope

We start with a free consultation to understand your situation, your stack and your biggest concerns. Then we set the scope together: a focused security scan or a full review.

Security and vulnerabilities

We scan for exposed secrets, injections, weak authentication, insecure data handling and the OWASP Top 10, both automated and by hand.

Architecture and performance

We assess system design, scalability, database queries and caching, and find the bottlenecks that only surface under load.

Code quality and technical debt

We look at structure, test coverage, dependencies and documentation: how easy is this code to maintain and hand over to a next team?

Prioritized report

You get a clear report: what's critical, what can wait, and what it costs to fix. With code examples, not an abstract checklist.

Talk it through and act

We walk through the findings together and set the way forward. If you want us to take on the key items, we can do that straight away.

What we often find

🛡️

Security leaks nobody spotted

Exposed API keys, SQL injection, XSS, weak or missing authentication and insecure data handling. Often live, without anyone noticing.

🏗️

Architecture that won't scale

Tight coupling, missing abstractions and slow queries that work at a hundred users and fall over at ten thousand.

⚠️

Technical debt that slows you down

Duplication, outdated dependencies, no tests and code nobody dares touch anymore. Every new feature costs more time because of it.

🐌

Performance issues under load

Memory leaks, inefficient algorithms and blocking operations that only show up when it gets busy, at exactly the wrong moment.

📜

Compliance gaps

GDPR violations, missing logging and accessibility issues that put a client contract or audit at risk.

🚀

Deployment without a safety net

Insecure CI/CD pipelines, no monitoring and no reliable backups. When something goes wrong, you notice too late.

How we offer it

Free

Free consultation

Security concerns, doubt about quality, or due diligence for a round? We discuss your codebase and give an initial risk assessment.

Includes

1.5 hours with senior developer(s)
Analysis of your current situation
Written summary afterwards
Concrete next steps

Best for: teams who want to know where they stand

On request

Security audit

A focused security review to track down vulnerabilities and compliance risks in your codebase.

Includes

Security scan, automated and by hand
OWASP Top 10 assessment
Vulnerable dependency analysis
Configuration and secrets review
Report with findings and remediation steps
One-hour consultation to discuss the findings

Possible activities

OWASP ZAP Snyk Semgrep Auth review API security Data encryption

Best for: teams with a security or compliance deadline

On request

Full code review

A broad review of security, performance, architecture and code quality, with a concrete improvement plan.

Includes

Everything in the security audit, plus:
Performance and scalability analysis
Architecture and design pattern review
Code quality and test coverage assessment
Prioritized improvement roadmap
Follow-up session to guide the work

Possible activities

SonarQube Performance profiling Load testing Database optimization Technical debt analysis

Best for: growing teams looking to scale or hand over

On request

Technical due diligence

An independent verdict on code, infrastructure and team, written for investors or buyers.

Includes

Analysis across multiple repositories
Infrastructure and deployment review
Team and workflow assessment
Estimate of technical risk and remediation cost
Executive summary for the decision-makers

Possible activities

Funding round Acquisition Vendor assessment GDPR check Scalability test

Best for: investors and teams facing a round or acquisition

* Pricing is indicative and depends on specific project requirements and scope.

How does it work?

We always start with a free consultation. In an hour and a half we discuss your codebase, your situation and your biggest concerns, and give an honest first assessment. Then we set the scope and the route together. No obligations.

Possible next steps:

Security audit: a focused security review with remediation steps
Full code review: broad analysis with a prioritized report
Fix it yourself or have it fixed: we take on the key items through software development support, or take it over entirely through managed development
AI-generated code? Start with the vibe coding audit

Frequently Asked Questions

What does a code review cost?

It depends on the size and the scope. A focused security audit is more compact than a full review across multiple repositories. In the free consultation we look at your codebase and give a realistic estimate of cost and timeline, so you know upfront where you stand.

How long does a code review take?

A focused security audit is often delivered within a few working days. A full code review usually takes one to two weeks, depending on the size and complexity of the codebase. A due diligence for a round is aligned with your timeline. You get updates along the way.

What exactly do you deliver?

You get a prioritized report: what's critical, what can wait, and what it costs to fix. We back every finding with code examples and a concrete remediation step, written in plain language. After that we walk through it together so your team can act on it straight away.

My app was built with AI tools like Lovable or Cursor, can you review that?

Yes. For AI-generated and vibe-coded projects we have a separate vibe coding audit built specifically for that kind of code. If it's an existing or largely hand-written codebase, this code review is the better fit. In the free consultation we decide together which of the two suits you best.

Do you also do technical due diligence for investors?

Yes. For a funding round or acquisition we give an independent verdict on the code, the infrastructure and the team, with an estimate of the technical risk and the remediation cost. We write the report so both you and the investor can base decisions on it.

Does my code stay confidential?

Always. We work under NDA and your code stays private throughout the engagement. We share nothing with third parties and can run the review in your own environment on request.

Do you also fix the problems you find?

We can. We identify the risks and give concrete remediation steps, and if you want, we take on the key items ourselves through software development support, or take it over entirely through managed development. You're never locked in: the report is also usable on its own by your own team.

Security and vulnerabilities

Architecture and scalability

Technical due diligence

Our Skills and Technologies