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You will get a security audit of your web app with OWASP testing and a fix report

Suleman K.Status: Offline
Suleman K.
4.9
Top Rated
Preview image

Let a pro handle the details

Buy Other Cybersecurity & Data Protection services from Suleman, priced and ready to go.
Suleman K.Status: Offline
Suleman K.
4.9
Top Rated
Preview image

Let a pro handle the details

Buy Other Cybersecurity & Data Protection services from Suleman, priced and ready to go.

Project details

I will perform a thorough security audit of your web application, testing against the OWASP Top 10 and beyond. With 10 years of full-stack development experience building production apps in React, Node.js, Laravel, and Golang, I audit code from a developer's perspective. I don't just run automated scanners. I understand how your app works, where the real vulnerabilities hide, and how to fix them properly.

You will receive a detailed report covering every finding: what the vulnerability is, how it can be exploited, the risk level, and step-by-step remediation guidance your team can follow immediately.

What I test: authentication and session management, authorization and access controls, input validation and injection flaws, API security, sensitive data exposure, security misconfigurations, cross-site scripting (XSS), CSRF, and more.

100% Job Success Score across 56 projects on Upwork. Top Rated Plus freelancer with $100K+ earned and 4,280+ hours tracked. I treat every audit like it's protecting my own application.
Cybersecurity Expertise
Audit, Risk Assessment
Technology Type
SaaS, Web Application
What's included
Service Tiers Starter
$500
Standard
$1,500
Advanced
$3,500
Delivery Time 7 days 14 days 21 days
Small Company Size
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Medium Company Size
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Large Company Size
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4.9
47 reviews
94% Complete
(44)
4% Complete
(2)
2% Complete
(1)
1% Complete
(0)
1% Complete
(0)

TW

Thomas W.
5.00
Aug 18, 2025
Laravel developer Suleman successfully helped us with bug fixes and new features on two legacy Laravel/Vue projects. Highly recommended!

AK

Arzu K.
5.00
Apr 4, 2025
Senior Golang Developer Needed for Advanced Projects We woked for a short term, but during this time he showed a high degree of commitment. We can recommend him 100% and would rehire him again in the future.

AS

Andy S.
5.00
Nov 1, 2024
Vercel/Nextjs project

JS

Jose S.
5.00
Sep 21, 2024
clicktripz implementation. add tags and popunder functions Great developer to work with.

GS

Ghaith S.
4.35
Oct 3, 2023
vCard Module Application
Suleman K.Status: Offline

About Suleman

Suleman K.Status: Offline
Senior Full-Stack & AI Developer | React/Next.js | Node.js | LLM & RAG
100% Job Success
4.9  (47 reviews)
Berlin, Germany - 10:18 pm local time
Need a senior developer who ships production-ready code and communicates clearly? I've delivered $100K+ across 56 projects on Upwork with a 100% Job Success Score -- here's how I can help you.

I build full-stack applications, scalable backend systems, and AI-powered products. My recent work includes:

- 600+ hours building Go microservices and APIs for a production backend system
- A 1,000+ hour engagement building a React/Node.js/AWS platform from the ground up
- AI chatbot and RAG pipeline development for production applications
- A 379-hour Laravel/Vue project delivering bug fixes and new features across legacy codebases

AI Integration & Development:
I build AI-powered features and products end-to-end -- not just prompt engineering, but full-stack AI product development. This includes:
- LLM API integration (OpenAI, Claude, Gemini) into production applications
- RAG pipelines with vector databases (Pinecone, Chroma, pgvector) for document retrieval and Q&A systems
- AI chatbots with custom knowledge bases, conversation memory, and tool use
- AI agents and autonomous workflows using LangChain, LangGraph, and custom orchestration
- AI-powered automation: content generation, data extraction, classification, and summarization
- Prompt engineering and optimization for reliability and cost efficiency

Full-Stack & Backend:
- Backend: Golang, Node.js, Python, PHP/Laravel -- REST APIs, microservices, database design
- Frontend: React, Next.js, Vue.js, TypeScript, Tailwind CSS
- Mobile: Flutter, React Native -- cross-platform iOS and Android apps
- Automation: Web scraping (Playwright, Puppeteer), workflow automation (n8n, Make)
- Infrastructure: AWS, PostgreSQL, MongoDB, Redis, Docker, CI/CD
- Integrations: Stripe, payment gateways, third-party APIs, headless CMS (Strapi, Sanity, Contentful)

I'm based in Berlin, Germany. I respond within hours, communicate proactively, and treat your project like my own.

Best fit for: AI-powered feature integration (chatbots, RAG, agents, LLM APIs), full-stack React/Next.js applications, backend/API development in Go or Node.js, mobile apps (Flutter/React Native), web scraping, and automation.

Send me a message to discuss your project -- I only take on work I'm confident I can deliver well.

Steps for completing your project

After purchasing the project, send requirements so Suleman can start the project.

Delivery time starts when Suleman receives requirements from you.

Suleman works on your project following the steps below.

Revisions may occur after the delivery date.

Reconnaissance & Threat Modeling

I review your app architecture, map all endpoints and attack surfaces, and identify the highest risk areas to focus testing on.

Vulnerability Testing & Exploitation

I manually test for OWASP Top 10 vulnerabilities, attempt auth bypasses, test API endpoints, and try to exploit any weaknesses found.

Review the work, release payment, and leave feedback to Suleman.