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I'm seeking an experienced backend developer to audit my existing Node.js backend. The audit should cover the following areas: - Security: Identify vulnerabilities and suggest improvements. - Performance: Analyze and recommend enhancements for speed and efficiency. - Code Quality: Review code for best practices and maintainability. Requirements: - Proven experience with Node.js - Strong understanding of backend security, performance optimization, and code quality - Ability to work with and understand comprehensive documentation Please provide examples of previous audits you've conducted and any relevant certifications.
Project ID: 40204732
11 proposals
Remote project
Active 2 mos ago
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11 freelancers are bidding on average ₹3,732 INR for this job

Hi there, I’ve reviewed your security testing needs and would be glad to assist. With 10+ years of experience in VAPT, vulnerability assessment, and web/app security testing, I help identify and fix critical security flaws before they become threats. You’ll get a detailed report, practical remediation steps, and complete confidentiality — following OWASP and industry best practices. Let’s connect to secure your application the right way! Best, Bhargav Security Specialist | VAPT & AppSec | 10+ Years Experience
₹25,000 INR in 7 days
5.8
5.8

Hey, I have performed multiple codebase audits and know specifically what to look for and where to look for. Let's get on a call so I can explain how I can proceed and what all I can provide to you during the audit. Thankyou
₹1,500 INR in 7 days
2.7
2.7

Hello, Greetings! I’m a senior full-stack developer with 6+ years of experience in building scalable mobile and web applications. I specialize in cross-platform and native mobile development using Flutter, React Native, Swift (iOS), and Kotlin/Java (Android), along with strong backend expertise in Node.js, Django, FastAPI, and Laravel, supported by modern cloud technologies. My team and I build end-to-end mobile solutions including custom dashboards, internal tools, automation systems, role-based platforms, secure APIs, real-time features, payment integrations, push notifications, and complete app store deployments. We focus on creating smooth user experiences, clean architecture, and reliable performance. We’ve worked on numerous mobile projects with different requirements and complexities, helping clients turn their ideas into well-designed, high-performing applications. Your project aligns well with our technical skills and development approach. I’d be happy to discuss your project scope, ideas, and goals, and suggest the best technical approach. Best regards, Suman Joshi
₹1,050 INR in 7 days
0.0
0.0

I can conduct a thorough audit of your Node.js backend, focusing on security, performance, and code quality, and provide clear, actionable recommendations. Audit Scope Security: Identify vulnerabilities (auth, input validation, secrets, access control) and suggest practical fixes Performance: Review query patterns, async flows, caching, and resource usage with optimization guidance Code Quality: Assess structure, conventions, testability, and long-term maintainability What You’ll Receive A structured audit report with prioritized findings Concrete improvement recommendations (with code examples where helpful) Notes aligned with your existing documentation and architecture Background Extensive experience auditing and maintaining Node.js backends (Express/NestJS) Strong focus on secure API design and performance optimization Comfortable working with large, well-documented codebases I can share relevant audit examples and credentials upon request and can start immediately
₹1,050 INR in 7 days
0.0
0.0

Hi, I have proven experience working with Node.js applications and conducting backend audits focused on security, performance optimization, and code quality. I’ll review your codebase to identify potential security vulnerabilities, inefficient queries or logic affecting performance, and areas where best practices or maintainability can be improved. My approach is practical and documentation-driven—I’ll work closely with your existing documentation to ensure the audit aligns with your architecture and business requirements. You’ll receive a structured audit report outlining findings, risk levels, and recommended fixes, along with suggestions for improving scalability and long-term maintainability. I’m happy to share relevant examples from previous backend audits and discuss any certifications or technical credentials that support my experience. Looking forward to reviewing your backend and helping you strengthen it. Best regards, Amandeep
₹1,200 INR in 4 days
0.0
0.0

I’m Juseph Ortiz, a Full Stack Developer with proven experience building and deploying international products using Angular and Node.js (NestJS). I have multiple production-ready projects currently deployed, and I’m ready to put that expertise to work for you. I will perform a high-impact audit of your backend focusing on: Security: Identifying vulnerabilities and ensuring OWASP compliance. Performance: Eliminating bottlenecks and optimizing database efficiency. Code Quality: Applying Clean Code and industry best practices. I am offering this professional-grade audit at a competitive rate because I am focused on building a 5-star reputation on this platform. I’ve reviewed your requirements and can start immediately. Let’s get your backend optimized. Best regards,
₹4,050 INR in 7 days
0.0
0.0

100% doable, but I checked your attached invoice and since you are using AWS with complex User Role Permissions, there is a big catch. Most developers just run a basic speed test, but they miss the Logic Flaws in role mappings that automated tools can't see that is exactly where security breaches happen in Node.js. I have a strong security background (CEH) specifically for this. My approach is different: I don't just look for messy code; I manually test your API logic and Auth flow like a hacker would. I will identify the leaks that are slowing you down and the gaps that make you vulnerable. To make your life easier, I will compile everything into a simple, clean PDF report with direct copy paste fixes. You won't need to hire a technical writer or a manager to explain it to your team you can just hand them the file. I can start this immediately and get your backend tight and secure.
₹3,000 INR in 4 days
0.0
0.0

Hisar, India
Member since Feb 4, 2026
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