Golang Developer (Senior)

Proxy-Seller is about people, ideas, and constant forward motion. For over a decade, we’ve been developing powerful solutions for working with large volumes of data. Under the hood — scalable systems and intelligent infrastructure processing millions of requests and petabytes of traffic every month. Our team includes 110 specialists, united not only by a shared goal but also by a desire to improve the product, processes, and results every single day.

• Porting existing high-load services from Java (Spring Boot) to Go
• Building and maintaining our proxy server
• Integrating and fine-tuning passive traffic analysis tools
• Packaging and deploying services in Docker

• Strong command of Go (Golang), concurrency patterns (goroutines, channels), and the standard library
• Ability to read and interpret Java code
• Solid understanding of the OSI model, TCP/IP stack behavior, and how these concepts are implemented in Linux
• Confident experience with Docker
• Experience with Linux system internals and networking configuration (iptables, nftables)
• Experience with OpenVPN, WireGuard, ShadowSocks, or similar open-source VPN tools
• Understanding how to design and support systems that operate under heavy load (10k+ RPS/connections)

• Freedom of action — no micromanagement, we trust your professionalism
• Full-time remote role with flexible working hours
• Clear and effective communication — no unnecessary meetings
• Real cases in high-load systems and working with a modern tech stack
• Ability to use AI to automate daily tasks
• Employee referral program
• Ability to influence processes: we are open to initiatives and improvements
• PTO: 21 calendar days of vacation, 12 days off, 7 days of sick leave
• Public holidays are days off
• Compensation for relevant courses and training, with the possibility to change tech stack on your initiative