I am a Data Scientist with over 8 years of experience in software development and data analysis. I specialize in transforming complex data into actionable insights that drive decision-making and enhance operational efficiency. My background in programming, scripting, and application support empowers me to tackle technical challenges with clarity and precision. I excel in identifying root causes, implementing practical solutions, and ensuring reliable workflows. My growing expertise in data science allows me to leverage analytical programming to support various initiatives, from monitoring systems to optimizing processes. I am committed to staying ahead of industry trends through continuous learning and hands-on projects. If you are looking for a detail-oriented professional who can unravel data challenges and deliver impactful solutions, let's connect and discuss how I can contribute to your success.

🚀 Experienced WordPress and Laravel Full Stack Developer | Expert in Website Scaling and Optimization Greetings! I'm Sanchit, an accomplished Full Stack Developer with over 8 years of hands-on experience in the dynamic realms of WordPress and Laravel. Currently, I am spearheading critical operations for a prominent company, managing massive websites with finesse. My expertise extends across a spectrum of responsibilities, where I ensure not just functionality but optimal performance. 🛠️ Key Specializations: 🌐 WordPress and WooCommerce Mastery: - Proven track record in scaling WordPress websites across multiple servers, ensuring seamless performance even under heavy traffic. - Expertise in optimizing themes and plugins for enhanced functionality and improved user experience. 🔗 Database Expertise: - Proficient in replicating databases and utilizing HyperDB to intelligently distribute database loads, ensuring efficient and smooth operations. - Database optimization is my forte, enhancing overall website speed and responsiveness. 🚀 Performance Enhancement: - Dedicated to setting up caching and transients, leveraging Redis to keep websites dynamic and responsive. - Skilled in crafting solutions that enhance overall website speed and user satisfaction. 🔧 Other Skills: - Server Infrastructure: Proficient in setting up traditional servers and managing their configurations. - Cloud Services: Adept at utilizing AWS services such as EC2, EFS, S3, ECS, Fargate, and Route 52 for scalable and robust infrastructure. - Mobile App Development: Experienced in Android and iOS app development, creating seamless experiences for users on multiple platforms. - Programming Languages: Fluent in Python, utilizing it for diverse functionalities. - Automated Testing: Skilled in using Selenium for efficient automated testing. - Monitoring and Analytics: Proficient in K2 Grafana for comprehensive monitoring and analytics. 💼 Why Choose Me: - Proven Track Record: Successfully managing massive websites for Hilton Web Design with demonstrable achievements. - Efficiency and Scalability: Expertise in scaling and optimizing websites for peak performance. - Versatility: A wide array of skills to cater to all aspects of web and app development. Let's collaborate and elevate your projects to new heights! Feel free to reach out, and together, we can turn your web development visions into reality. Thank you for considering my profile! 🌟

I have a 15+ years reverse engineering experience. My experience includes: - reversing of Windows/Linux/OS X/Android/iOS applications - almost every debugger/decompiler: IDA/Hopper/lldb/etc. - reversing data formats and network protocols - modifying, patching and adding features to compiled code - creating emulators - etc. I can create software but I'm only interested in Reverse Engineering jobs here on Upwork.

I have more than 10 years of experience building SAAS products, websites/web applications, mobile applications for iOS & Android, and databases with strong analytical skills and a broad range of computer expertise. Technical Skills: Back End: Python, Ruby, Java, C++, C#, ASP.NET MVC, Web API Front End: HTML5, CSS, JavaScript, Angular, React, Next.js, Typescript Frameworks: Django, Rails, Grails, Groovy, Entity Framework (EF) Mobile: React Native, Swift, Flutter Databases: MS SQL Server, MySQL, PostgreSQL, MongoDB, DynamoDB Operating Systems: MS Windows Server, Linux, Ubuntu, CentOS, OSX Cloud Services: AWS, Microsoft Azure Source Controls: Git, MS Visual SourceSafe, Subversion (SVN) Tracking / Collaboration: JIRA, Trello, Basecamp, Redmine Editors: Vim, Atom, Sublime Others: Capistrano, Devexpress, Chrome DevTools, Github

Java back-end engineer who enjoys solving complex problems end-to-end (build, enhance, debug, operate). 2y at Swissquote (payments), 2.5y at SGCIB (market-data referentials), 2y freelance at Natixis (equity referentials), and 4y at SGCIB (risk/VaR/PnL). Certifications OCP Java 6 & 11. Built HypeMatch, a SwiftUI iOS app for browsing US-listed companies’ fundamentals. CodinGame global rank #175 (top 0.1%).

Need an AI/LLM application pentested before launch? I'm a CREST-registered, OSCP-certified penetration tester currently doing product security at HackerOne. In the last 7 years I've found vulnerabilities reported in the Hall of Fame at SkyScanner, Under Armour, Western Union, Binance, and Intel. AI/ML Security Specialist & Senior Penetration Tester | OSCP • CREST CRT • CREST CPSA • ISC2 CC • ISO 27001 LA | 7+ Years | Currently Product Security @ HackerOne I help AI startups and SaaS companies ship products that don't get breached. My focus: securing LLM applications, MCP servers, agentic systems, and the REST/GraphQL APIs that power them — using the same offensive playbook that earned me Hall of Fame recognition from SkyScanner, Under Armour, Redox, Western Union, Indeed, Binance, and Intel. ━━━━━━━━━━━━━━━━━━━━━━ AI / ML SECURITY (PRIMARY) ━━━━━━━━━━━━━━━━━━━━━━ ✅ LLM Vulnerability Assessments aligned with OWASP Top 10 for LLM Applications (2025) — prompt injection, sensitive info disclosure, supply-chain, data/model poisoning, improper output handling, excessive agency, system prompt leakage, vector/embedding flaws, misinformation, unbounded consumption ✅ AI Red Teaming using PyRIT, Garak, DeepTeam, PentAGI, Strix — single-turn + multi-turn jailbreaks, indirect injection, tool-poisoning, RAG poisoning ✅ Model Context Protocol (MCP) Security — auditing MCP servers/clients for tool poisoning, OAuth/token theft, command-injection (CVE-2025-6514, CVE-2025-49596 class issues), capability-confusion, and STDIO RCE patterns ✅ Threat Modeling for Generative AI mapped to MITRE ATLAS + NIST AI RMF + OWASP Agentic AI Top 10 (Dec 2025) ✅ MLSecOps & AI Security in CI/CD — automated red-team pipelines via N8N, Nuclei, ars0n framework, OWASP Nettacker, integrated into GitHub Actions/GitLab/Jenkins so every model + prompt change is tested before merge ━━━━━━━━━━━━━━━━━━━━━━ TRADITIONAL VAPT (SECONDARY) ━━━━━━━━━━━━━━━━━━━━━━ ✅ Web App & API Penetration Testing — Django, FastAPI, NestJS, REST, GraphQL with Burp Suite Pro ✅ OWASP Top 10:2025 + OWASP API Top 10 — IDOR, SSRF, auth bypass, business-logic flaws, mass assignment, JWT/session attacks ✅ Mobile (Android/iOS), Network (internal/external), Cloud (AWS/Azure/GCP) pentesting ✅ Smart Contract Security Audits — Solidity, common DeFi attack patterns ✅ DevSecOps — SAST/DAST integration, WAF tuning, secure-SDLC consultation ━━━━━━━━━━━━━━━━━━━━━━ PROOF OF WORK ━━━━━━━━━━━━━━━━━━━━━━ - Hall of Fame: SkyScanner, Under Armour, Redox, Western Union, Indeed, Binance, Intel - Currently: Product Security Analyst @ HackerOne (the world's largest bug-bounty platform) - Active: Lead AI Product Security freelancer for a US-based AI startup building agentic LLM tooling - Certs: OSCP (offensive security), CREST CRT (UK gold-standard pentest), CREST CPSA, ISC2 CC, ISO 27001 LA ━━━━━━━━━━━━━━━━━━━━━━ WHAT YOU GET ━━━━━━━━━━━━━━━━━━━━━━ 1. A scoping call within 24 hours under NDA 2. Hybrid manual + automated testing (zero scanner-only "100-page PDF" reports) 3. Executive summary + technical findings, each with reproduction steps, CVSS, business impact, and developer-friendly remediation 4. Mapping to your compliance frameworks: SOC 2, ISO 27001, HIPAA, PCI-DSS, EU AI Act, NIST AI RMF 5. Free remediation re-test within 30 days — every finding re-validated until closure ━━━━━━━━━━━━━━━━━━━━━━ IDEAL CLIENTS ━━━━━━━━━━━━━━━━━━━━━━ 🚀 AI/ML startups shipping LLM apps, RAG systems, MCP servers, or agentic workflows that need a real adversary before launch or before SOC 2 🌐 SaaS / fintech / healthtech teams needing OWASP-aligned web + API VAPT with a clean, auditor-ready report If you're building with GPT-4o, Claude, Llama, Gemini, custom fine-tunes, LangChain, LangGraph, CrewAI, AutoGen, or MCP — and you need someone who actually breaks things instead of running a scanner — let's talk. 📩 Send your scope (and ideally a 1-line description of the LLM/agent stack). You'll get a tailored test plan within 24 hours. Keywords: AI Security, LLM Security, AI Red Teaming, AI Penetration Testing, GenAI Security, Prompt Injection Testing, Jailbreak Testing, MCP Security, Model Context Protocol Audit, MLSecOps, OWASP LLM Top 10, NIST AI RMF, MITRE ATLAS, Agentic AI Security, RAG Security, Vector Database Security, Penetration Testing, VAPT, Web Application Penetration Testing, API Penetration Testing, REST API Security, GraphQL Security, Burp Suite Pro, OWASP Top 10, Mobile Pentest, Cloud Security AWS Azure GCP, Smart Contract Audit, DevSecOps, SAST DAST, OSCP, CREST CRT.

Hi, I’m Dileshwar from STONENOX. We provide **white-label development services** for agencies & businesses. 🌐 Websites & Web Apps 📱 Android & iOS Apps 🛒 E-commerce 💻 Custom Software & SaaS 🤖 AI Automation & Chatbots 🔗 APIs & Integrations **Our Projects:** Real Estate, E-commerce, Bookstore, CRM, Restaurant Management, AI Tools & more. You bring the client, we handle the complete development **under your brand**. Interested in a white-label partnership?

Experienced Senior Flutter Developer skilled in building high-quality mobile apps for iOS, Android, and the web. Passionate about delivering innovative solutions that meet client needs. Proficient in Dart, design and development tools, and problem-solving.

I am full stack software developer experience in building applications for both android and iOS and website using react. - Knows DART, Java and JavaScript - Full project management from start to finish

I am a Senior Software Engineer and QA Automation specialist with experience building reliable web applications, backend systems, automated testing frameworks, APIs, and cloud-based solutions. My expertise includes Python, JavaScript, Selenium, Playwright, PyTest, REST APIs, SQL, AWS, Docker, CI/CD, and AI-powered workflows. I have built automation platforms, integrated quality gates into deployment pipelines, validated complex data systems, and developed scalable business applications from the ground up. I can help with: • Full-stack and backend development • Test automation framework design • Web, API, database, and integration testing • CI/CD and cloud deployment automation • AI agents and workflow integrations • Performance testing and production troubleshooting I focus on clean code, clear communication, and delivering solutions that are reliable, maintainable, and aligned with business goals.