Protect your users, data, and brand with practical security engineering.
Security cannot be bolted on as an afterthought. We conduct deep technical reviews to uncover misconfigured servers, exposed environment variables, insecure authentication flows, and dependency vulnerabilities.
The Core Problem We Solve
Modern web applications face automated scrapers, brute-force attacks, SQL injection attempts, leaky S3 buckets, exposed API tokens in client bundles, and unpatched server software. A single security breach can devastate user trust and lead to regulatory penalties.
Who this service is engineered for
Designed for businesses, technical leaders, and founders who require senior execution rather than amateur experimentation.
What is included in this service
Clear architectural deliverables and engineering responsibilities covered in our engagements.
Full-Stack Code & Secret Leakage Audit
Static code analysis to detect exposed API keys, unsafe eval execution, SQL injection vectors, and Cross-Site Scripting (XSS).
Authentication & Session Security Review
Auditing JWT token lifecycles, CSRF protections, OAuth callback validation, password hashing algorithms, and rate limiting.
Server & Cloud Configuration Hardening
Securing SSH access, closing unnecessary server ports, configuring UFW/fail2ban, and setting up strict IAM permission boundaries.
Security Headers & CSP Implementation
Deploying Content Security Policy (CSP), Strict-Transport-Security (HSTS), X-Content-Type-Options, and CORS configurations.
Database Access & Storage Bucket Audits
Verifying Row-Level Security (RLS) policies in PostgreSQL/Supabase, public bucket access restrictions, and encryption at rest.
Remediation Guidance & Re-Testing
Delivering a prioritized vulnerability report with actionable code snippets and verifying all resolved issues.
Typical Tangible Deliverables:
Tools and frameworks we leverage for this service
Modern, battle-tested technologies with deep ecosystem support.
How we execute this service step-by-step
Our structured 4-step framework from initial diagnostic to deployment and handoff.
Scope Definition & Non-Destructive Scanning
We define testing boundaries and run static analysis, dependency scanning, and header inspections.
Manual Code & Architecture Inspection
Our senior engineers examine authentication flows, database queries, access control policies, and cloud IAM roles.
Vulnerability Report & Action Plan
We compile findings into a clear report ranking risks by business impact with direct engineering fixes.
Patch Implementation & Verification
We assist your team in applying recommended security patches and re-test to confirm all vectors are closed.
Feedback on our Security & Infrastructure Audits practice
Direct reviews from technical founders and executives who worked with us.
“JoinAffix's infrastructure review identified an unencrypted internal Redis port and outdated SSL cipher suites before our external compliance review. Thorough, professional, and fast.”
“Prior to our Series A fundraising, JoinAffix conducted a rigorous security audit of our healthcare SaaS. They discovered and resolved cross-tenant data leakage vectors in our GraphQL resolvers that had slipped past our internal QA. Outstanding attention to detail.”
“JoinAffix's security audit uncovered critical CORS misconfigurations and an exposed database endpoint that our previous dev shop missed. Their remediation plan was clear, prioritized, and easy to execute.”
“Their server hardening checklist and Content Security Policy implementation protected our public API from an aggressive scraping attack that hit us just three weeks later.”
“Their SOC2 Type II compliance audit and penetration testing caught a zero-day dependency vulnerability in our Python microservice days before audit certification.”
“JoinAffix's infrastructure review identified an unencrypted internal Redis port and outdated SSL cipher suites before our external compliance review. Thorough, professional, and fast.”
Common questions about this service
Honest answers regarding timelines, ownership, and technical logistics.
This is a practical technical engineering and vulnerability audit designed to harden code, infrastructure, and access controls. While it establishes the technical foundations needed for SOC 2 or ISO 27001 compliance, formal compliance certification requires an accredited auditing firm.
Related engineering services
Other practices that frequently integrate with this service.
Custom Web Development
Full-stack applications built with Next.js, React, and modern architecture.
DevOps & Cloud Infrastructure
Docker, CI/CD, AWS, Azure — your infrastructure, engineered for scale.
Website Maintenance
Security patches, monitoring, backups, and peace of mind — monthly.
Concerned about vulnerabilities in your application?
Let's conduct a comprehensive security review to identify and resolve critical risks.