[Position]: Senior Reverse Engineer / Security Protocol Specialist
[Programmin Language]: C, C++, Assembly (x86/x64/ARM), Python, Rust, Java, Go
[Years Experience]: 12+
[Previous Projects]:
Reverse-engineered proprietary firmware and closed-source binaries for multiple client security audits (malware analysis, vulnerability discovery)
Designed and tested bypass techniques for authentication and encryption protocols in controlled lab environments (used for hardening products, not real attacks)
Built custom tools for unpacking, deobfuscating, and analyzing protected software and network protocols.
Contributed to several private red-team engagements and vulnerability research reports
[Availability]: Full-time / contract, remote
[Other Info]: Strong focus on low-level systems, binary analysis, and defensive security research
Clean professional background, NDA-friendly
Freelancer Offers
Newest posts first, load more older posts as you go.
[Position]: Ethical Hacker
[Programming Languages]: Python, Rust, Bash/Powershell, Ruby, JavaScript, Go, C++
[Years Experience]: 12 years
[Previous Projects]:
2025–2026: Designed and deployed a custom “GhostShell” Red Team Framework (Go + Rust) used in 3 corporate engagements. Features in-memory loaders, living-off-the-land binaries, and EDR evasion (tested on Windows 11 24H2, macOS Sequoia, Linux)
2024–2025: Built and sold 2 automated bug-bounty hunting bots (Python + Selenium + custom fuzzers) that found 17 real vulnerabilities at $28k total payouts
2023: Created “HackTheChain” a full CTF ready platform with 40+ challenges, automated scoring, and AI grading (Python + Flask + Redis)
Used by 1,200 students and 40 companies
2020–2023: Developed a zero-day research lab that simulated 450+ CVE chains in under 72 hours
Built the core simulation engine in Rust and Python (custom loaders, memory corruption chains, and full stack analysis)
Presented findings at Black Hat and Defcon
2018–2020: Led a 3-month red-team exercise for a major bank (Fortune 50)
Infiltrated 3 segmented networks, extracted $2.3M in simulated funds, and built custom tools that bypassed their EDR and SIEM stack
2016–2018: Created open source “ShellSploit” framework (Python + Bash)
Still actively used by 1200+ students worldwide and forked by multiple security companies
[Availability]: One time (or long term if client wants)
[Other Info]: 12 years of real-world battle-tested experience turning complex vulnerabilities into clean, automated, undetectable exploits. Fortune 500, startups, and government-adjacent environments, all with a focus on security research, red teaming, and teaching
[Position]: AI Full Stack Developer & Bot Engineer
[Programming Languages]: TypeScript, Python, C#/.NET, React/Next.js, Node.js, Go, Rust, React Native
[Years Experience]: 8 years.
[Previous Projects]: https://github.com/konstantinkop
https://konstantinkop.vercel.app/
[Availability]: Open to all types of collaborations from long-term partnerships to one-off projects.
40+ hrs/week availability
[Other Info]: I build fast, scalable, and production-grade AI agent platforms, automation systems, and high-performance bots
Strong experience developing complex AI solutions using React.js, Node.js, and Python. Extensive background creating various enterprise-grade applications with C# and the full .NET ecosystem (ASP.NET, VB.NET included).
Specialized in building proxies and networking tools with Rust, as well as advanced several bots and automation systems with Python
Passionate about performance, scalability, clean architecture, and tackling challenging problems across web, mobile, desktop, and low-level systems
[Position]: Bot & Automation Developer
[Language]: Python, JavaScript, TypeScript, Node.js, C++, PHP, N8N
[Experience]: 7+ years
[Previous Projects]:
Developed custom bots and automation systems for web platforms, APIs, dashboards, data processing, account workflows, and repetitive operational tasks
Experienced in building bots from scratch as well as improving existing bot systems, including browser automation, API-based automation, task scheduling, concurrency, proxy integration, session management, error handling, logging, and performance optimization.
For example, Akamai-protected platforms: Worked on automation and bot systems involving Akamai environments, focusing on legitimate workflow automation, request handling, session management, reliability, and integration with existing backend systems.
[Availability]: Available to start immediately and can work on both short-term tasks and long-term projects.
[Other info]:
My main focus is bot development and automation. I can take a project from the initial requirements through development, testing, deployment, and ongoing maintenance. I’m comfortable working with existing source code when the project is already partially developed, and I can also build the automation system from the ground up
Hey! I'm a Python developer with experience in Python projects and AI agents.
I'm currently available for small paid tasks, bug fixes, API integrations, and automation scripts.
If you're looking for someone to help with a specific task, please share the requirements and budget. I can review the scope and confirm a price before starting.
Thanks!
[Position]: Senior Software Engineer | Backend Engineer | Full-Stack Developer | API & Cloud Engineer
[Programming Languages & Tech]: Python, Go, Node.js, TypeScript, JavaScript, React, Next.js, FastAPI, PostgreSQL, MySQL, Redis, Kafka, REST APIs, GraphQL, AWS, Docker, Kubernetes, GitHub, CI/CD, AI Coding Tools
[Years Experience]: 6+ years
[What I Can Build]:
Scalable backend systems & REST APIs
Full-stack web applications
Python / FastAPI / Node.js services
React / Next.js applications
SaaS platforms & MVPs from scratch
Third-party API integrations
Real-time systems & event-driven architectures
Kafka / Redis integrations
Database design & performance optimization
AWS cloud infrastructure & deployment
Automation tools & workflows
AI-assisted features & integrations
Existing application debugging & optimization
Production bug fixes & new features
[Availability]: Immediately
[Other Info]:
Software engineer with 6+ years of experience building production systems at Instagram.
At Instagram, I helped reduce database reads by 38%. I worked on a real-time system that reduced server load by over 60%.
I can jump into an existing codebase, fix challenging issues, build new features, or develop an MVP from scratch.
Open to:
Fixed-price projects
Hourly contracts
Long-term opportunities
Startup collaborations
Small development tasks
Small projects are welcome too whether it's fixing a backend bug, building an API, integrating a service, or adding a feature.
Available to start immediately. DM me with your project details, timeline, and budget.
Hey! I'm a Python developer with experience in Python projects and AI agents.
I'm currently available for small paid tasks, bug fixes, API integrations, and automation scripts.
If you're looking for someone to help with a specific task, please share the requirements and budget. I can review the scope and confirm a price before starting.
Thanks!
[Position]: Frontend Developer / Full Stack Developer
[Programming Languages & Technologies]: HTML, CSS, JavaScript, TypeScript, Python, C#, Java, React, Next.js, Node.js, SQL, Bootstrap, Git, GitHub, Claude, Claude Code, GitHub Copilot and OpenAI Codex.
[Years Experience]: Approximately 2–3 years of programming experience, with hands-on experience developing personal projects and websites for clients.
[Previous Projects]:
- **Burger Point:** Full-stack web platform for a food business, featuring a product catalog, online ordering, WhatsApp integration, and an administrative dashboard.
- **NexusAnalytics:** Web-based analytics dashboard focused on data visualization, information management, and presenting insights.
- **Tienda Xeneize:** E-commerce platform for Boca Juniors sports apparel, featuring product catalogs, responsive design, and an online shopping experience.
- **Patitas en Casa:** Animal adoption platform connecting potential adopters with animals looking for a home.
- **Flowdesk:** Task management application that allows users to organize tasks into sections and track pending, ongoing, and completed tasks.
- **Vaultrix:** High-performance corporate landing page for a SaaS business management platform, featuring responsive design, conversion-focused UI, and interactive microanimations.
[Availability]: Available for freelance projects and part-time opportunities.
[Other Info]: Focused on building modern, responsive, and functional web applications. Experienced in frontend and backend development, database integration, and AI-assisted development tools.
GitHub: https://github.com/Santiago-Romano
LinkedIn: https://www.linkedin.com/in/santi-agustin-romano/
Position: Web Designer / Frontend Web Developer
Programming Languages: HTML, CSS, JavaScript. Experienced with AI-powered website development tools.
Years Experience: Beginner / Self-taught web developer with hands-on project experience.
Previous Projects:
Portfolio: https://zetoport.netlify.app/
I have created website projects focused on modern design, responsive layouts, and user-friendly experiences.
Availability: Flexible, depending on project requirements and schedule.
Other Info:
I'm Zeto, a passionate web developer who enjoys turning ideas into modern, professional websites. I'm creative, eager to learn, and always looking to improve my skills through real projects. I can work independently and follow project instructions.
[Position]: Reverse Engineer & Web Scraper
[Experience]: 9+ years | Akamai • Incapsula • DataDome • Ticketing • E-commerce
[Programming Languages]: Python, JavaScript, TypeScript, Go, Rust, C++
[Previous Projects]: Web & Mobile RE • API Analysis • Automation • Anti-Bot Research • Fingerprinting • CAPTCHA • Scraping
[Availability]: immediately
[Other Info]: Fast, reliable, and focused on results. DM me with your project details. Serious inquiries only.🤝
Login with Discord to write comments and help the community review opportunities.
Login with Discord