Developer Offline

We are seeking a highly skilled specialist for a challenging and unique project focused on engineering a sophisticated proxy server solution. The primary objective is to enable access to specific online games via this proxy, while ensuring maximum stealth and successfully circumventing existing security measures and geo-restriction mechanisms.

Key Responsibilities:

1. Proxy System Engineering: Design, develop, or configure a robust proxy server architecture capable of reliably handling traffic for both the game's launcher and the game client.
2. Dynamic Content Manipulation: Implement advanced logic for real-time modification of proxied web content (HTML, CSS, JavaScript), specifically targeting the removal or neutralization of tracking scripts and analytics elements (e.g., Google Tag Manager, Google Analytics, custom statistics).
3. Security & Restriction Bypass: Analyze and devise methods to overcome anti-proxy detection systems and geo-blocks, which may involve techniques related to IP validation, header inspection, JavaScript challenges, fingerprinting, and more.
4. Code Analysis & Deobfuscation: Perform in-depth analysis of      obfuscated client-side JavaScript to fully understand its operational logic and identify embedded security or detection mechanisms, adapting the proxy interaction accordingly.

Required Qualifications:

• Proven expertise and extensive hands-on experience in configuring, managing, and/or developing proxy server solutions (e.g., Nginx, HAProxy, Squid, or custom implementations using languages like Python, Go, Node.js).
• Demonstrated ability to perform complex, on-the-fly manipulation of HTTP/HTTPS traffic and web content (HTML, CSS, JS).
• Advanced proficiency in JavaScript deobfuscation techniques and thorough analysis of complex client-side codebases.
• Significant experience utilizing network traffic analysis tools (such as Wireshark, Fiddler, Burp Suite, Charles Proxy) for deep inspection and debugging.
• Solid understanding of core web technologies and protocols: HTTP/HTTPS, request/response headers (incl. Referer, User-Agent), CORS, WebSockets, cookies, local storage, and iframe mechanics (incl. sandbox attribute implications).
• Prior experience dealing with anti-fraud systems, bot detection, or similar security measures is highly advantageous.
• Strong analytical and problem-solving capabilities, coupled with persistence and a methodical approach to tackling unconventional technical challenges.

What we offer:

• Remote work format;
• Working hours from 10:00 to 18:00 (Mon-Fri);
• Interesting work in successful projects;
• Timely payment of salaries, official employment, 24 days of vacation and fun corporate events;
• A friendly team and a pleasant atmosphere without pressure, stress and other negative things.

We believe in the importance of unlocking the inner potential of each team member, we have an open and democratic system of work organization.

We are waiting for you on our team!