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Security & Infrastructure Audits

APPLICATION & CLOUD HARDENINGSenior Lead Active

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.

5.0 Verified Client Rating
Direct engineer evaluation < 24h100% IP & Code Ownership
Practice Specification
Core Engineering Standards100% Production Ready
Primary FrameworkNext.js App Router
Type DisciplineStrict TypeScript 5
Data IsolationPostgreSQL & RLS
Edge InfrastructureVercel / Cloudflare
Verified Quality Commitments
Zero vendor lock-in · Full git repository handover
Automated GitHub Actions CI/CD testing gates
Direct Slack communication with senior engineers
The Core Technical Bottleneck We SolveHigh Business Impact

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.

Prevents compounding technical debtSenior engineering intervention eliminates rewrite risks
TARGET AUDIENCE & FIT

Who this Security & Infrastructure Audits practice is engineered for

Built for technical leaders, founders, and product teams requiring senior execution rather than amateur experimentation.

Startups preparing for due diligence, enterprise customer reviews, or product launchesHigh-Fit Profile
Companies handling sensitive user data, customer records, or financial transactionsHigh-Fit Profile
Teams that experienced suspicious activity, server compromises, or spam bot floodsHigh-Fit Profile
Businesses seeking external technical validation of their cloud and application architectureHigh-Fit Profile
ENGINEERED SCOPE & CAPABILITIES

What is included in this service

Every Security & Infrastructure Audits engagement delivers production-grade architecture, verified testing, and comprehensive code handover.

Module 01

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).

Verified ArchitectureIncluded
Module 02

Authentication & Session Security Review

Auditing JWT token lifecycles, CSRF protections, OAuth callback validation, password hashing algorithms, and rate limiting.

Zero-Downtime SafeIncluded
Module 03

Server & Cloud Configuration Hardening

Securing SSH access, closing unnecessary server ports, configuring UFW/fail2ban, and setting up strict IAM permission boundaries.

Strict TypeScriptIncluded
Module 04

Security Headers & CSP Implementation

Deploying Content Security Policy (CSP), Strict-Transport-Security (HSTS), X-Content-Type-Options, and CORS configurations.

100% IP HandoverIncluded
Module 05

Database Access & Storage Bucket Audits

Verifying Row-Level Security (RLS) policies in PostgreSQL/Supabase, public bucket access restrictions, and encryption at rest.

Automated CI/CDIncluded
Module 06

Remediation Guidance & Re-Testing

Delivering a prioritized vulnerability report with actionable code snippets and verifying all resolved issues.

Production ReadyIncluded

Tangible Production Asset Manifest100% Handover

Direct codebase artifacts transferred to your private organization

Executive security summary & detailed technical vulnerability reportStatus:Included Deliverable
Prioritized remediation matrix with severity scores (Critical, High, Medium, Low)Status:Included Deliverable
Implemented security headers, CORS policies, and rate-limiting rulesStatus:Included Deliverable
Server hardening scripts and IAM least-privilege configuration guidelinesStatus:Included Deliverable
Follow-up verification check after fixes are deployedStatus:Included Deliverable
Full Private GitHub Handover
Architecture ADRs Included
Automated CI/CD Test Suite
ENGINEERED TECH ECOSYSTEM

Modern technologies and frameworks we leverage

Battle-tested, enterprise-grade tooling with strict type safety and deep ecosystem reliability.

OWASP StandardsNext.js SecurityPostgreSQL RLSCloudflare WAFFail2ban / UFWLet's Encrypt SSLSnyk / Trivy
STRUCTURED EXECUTION PIPELINE

How we engineer and ship this service step-by-step

Our battle-tested 4-phase framework ensures zero downtime, complete visibility, and production-grade delivery for Security & Infrastructure Audits.

Phase 01

Scope Definition & Non-Destructive Scanning

We define testing boundaries and run static analysis, dependency scanning, and header inspections.

Deliverable
ADR & Diagnostic Report
Phase 02

Manual Code & Architecture Inspection

Our senior engineers examine authentication flows, database queries, access control policies, and cloud IAM roles.

Deliverable
Modular Pull Requests
Phase 03

Vulnerability Report & Action Plan

We compile findings into a clear report ranking risks by business impact with direct engineering fixes.

Deliverable
Automated CI/CD Gates
Phase 04

Patch Implementation & Verification

We assist your team in applying recommended security patches and re-test to confirm all vectors are closed.

Deliverable
Production Runbook Handover
PRODUCTION TELEMETRY

Security & Infrastructure Audits Operations & Metrics

Live performance benchmarks, real-time event feeds, and automated hardening telemetry for this engineering practice.

High-Throughput Web Application Kernel

LIVE 99.99%
API REQUESTS / MIN
28,450
+14% peak traffic
REVENUE SUPPORTED
$420K+
Zero drop-off
UPTIME SLA
99.99%
Multi-region fallback
SUB-SECOND TTFB
18ms
Global edge delivery
Recent Production ActivityReal-time event feed
Enterprise Multi-Tenant Provisioning
Tenant Kernel
DeployedJust now
Real-Time WebSocket Sync
Collaboration
Resolved2 min ago
PostgreSQL Materialized View Refresh
Analytics Engine
Passed8 min ago
Stripe Metered Billing Webhook
Usage Billing
Hardened15 min ago
Redis Atomic Token Bucket Rate Limiter
DDoS Shield
Passed22 min ago
Automated AWS Aurora Cluster Failover
High Availability
Resolved41 min ago
TRANSACTION THROUGHPUT28.4K req/min
Mon
Tue
Wed
Thu
Fri
Sat
Sun
API Success Rate (200 OK)99.98%
Database Connection Efficiency96%
Global Edge Cache Hit Ratio94%
SYSTEM AUDIT STREAM
SYSTEMIncoming enterprise tenant onboarding batch (5,000 seat provisioning)...
ORCHESTRATORExecuting zero-downtime schema migration with isolated database partition.
ENGINEERPgBouncer connection pool locked at 32 connections. Zero queue latency spikes.
TELEMETRYProvisioning completed in 420ms. Health checks green across all edge points.
Multi-tenant tenant isolation • Zero-downtime migrations
Enterprise Core
140+
Releases Hardened
99.8%
Pipeline Pass Rate
$12M+
Client Revenue Guarded
5.0 Verified Engineering Rating
VERIFIED CLIENT VOICES

Feedback on our Security & Infrastructure Audits practice

Direct reviews and authentic quotes from CTOs, technical founders, and executives who engaged this practice.

Security & Audits
Identified critical internal network risks before our compliance audit.

“JoinAffix's infrastructure review identified an unencrypted internal Redis port and outdated SSL cipher suites before our external compliance review. Thorough, professional, and fast.”

EC
Ethan Caldwell
VP of Technology, Beacon Security Group
1 / 6
Security & Audits
Identified and patched cross-tenant security vulnerabilities before Series A.

“Prior to our Series A fundraising, JoinAffix conducted a rigorous Security & Infrastructure 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.”

JC
Jack Callahan
Head of Engineering, Bondi Health Tech
Security & Audits
Uncovered critical security misconfigurations and provided clear fixes.

“JoinAffix's Security & Infrastructure 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.”

CM
Claire Moreau
Director of Technology, Vanguard Asset Partners
Security & Audits
Server hardening and CSP protected our API from major bot scraping.

“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.”

MR
Martin Ross
Head of Infrastructure, Stratos Cloud Services
Security & Audits
Secured SOC2 Type II certification with zero compliance findings.

“Their SOC2 Type II compliance audit and penetration testing caught a zero-day dependency vulnerability in our Python microservice days before audit certification.”

GT
Gabrielle Tremblay
Head of Digital Engineering, Montréal BioSystems
Security & Audits
Identified critical internal network risks before our compliance audit.

“JoinAffix's infrastructure review identified an unencrypted internal Redis port and outdated SSL cipher suites before our external compliance review. Thorough, professional, and fast.”

EC
Ethan Caldwell
VP of Technology, Beacon Security Group
Frequently Asked Questions

Straightforward answers about our Security & Infrastructure Audits practice.

Clear logistics regarding delivery timelines, communication cadences, codebase ownership, and pricing frameworks.

Have a specific question?

Talk directly to an architect

Need feedback on an architecture decision, NDA review, or custom enterprise SLA?

Ask an Engineer Directly
Response < 24hZero sales pressure

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.

Concerned about vulnerabilities in your application?

Let's conduct a comprehensive security review to identify and resolve critical risks.

Fixed milestone architecture blueprintDirect engineer evaluation < 24h100% IP & repo ownership

Prefer a video review? Check the Loom option on the contact form for a free 3-minute technical teardown.