Proxy Network Engineer

SearchApi, LLC; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

SearchApi, LLC is seeking a Proxy Network Engineer to design and implement an entire proxy infrastructure from the ground up. You will work on residential, mobile, and data center proxies, with a focus on rotation, session management, and intelligent routing.

The role emphasizes deep networking work, performance optimization, and handling billions of requests. You will own core systems and contribute to architecture from day one in a bootstrapped environment.

Qualifications

• Experience building proxy infrastructure from scratch.
• Knowledge of IPv4/IPv6, TCP/UDP tuning.
• Understanding IP reputation and privacy considerations.
• Ability to design scalable, fault-tolerant systems.

Responsibilities

• Build proxy infrastructure from scratch and write core systems.
• Design and implement rotation systems and intelligent routing.
• Manage IP reputation, monitor health, and optimize pools.
• Build bandwidth reporting and metering to track usage.
• Write high-performance reverse proxy systems, not basic configurations.
• Handle multiple proxy types: residential, mobile, datacenter, ISP.
• Implement geo-targeting and session management across protocols.

Skills

Proxy engineering

Network protocol mastery

IP rotation & session management

High-performance networking

Job description

Proxy Network Engineer

We are looking for an engineer who can build proxy infrastructure from scratch. Not configure existing solutions. Build. Residential networks, ISP proxies, rotation systems, session management. If you understand the difference between a high-level integration and writing a reverse proxy yourself, this role is for you.

About SearchApi

SearchApi is a real-time SERP API delivering structured data from 100+ search engines and sources, including Google Search, Google Shopping, Google Jobs, Bing, Baidu, YouTube, Amazon, and many more. We power production workloads for Fortune 500 companies and fast-moving startups who need reliable search data at scale.

We're a lean, profitable, bootstrapped team. No VC pressure, no bloat. Just engineers shipping real products to real customers.

Why Join Us?

Build from scratch. Not glue existing tools together. Design and implement proxy infrastructure.

Greenfield project. You'll shape the architecture from day one. No legacy to work around.

Deep technical work. Networking, protocols, performance optimization. The hard stuff.

Real scale. Billions of requests. Your infrastructure needs to handle it.

Bootstrapped and Profitable. We answer to customers, not investors.

Tech Stack

• Low-level networking (TCP/UDP, sockets, connection handling)
• HTTP/HTTPS/SOCKS5 protocols
• HTTP/2, HTTP/3
• Reverse proxy implementation (not just nginx/squid configuration)
• Linux networking stack
• Cloud infrastructure (provider TBD based on IP policies and networking speed)
• Terraform is a plus (for autoprovisioning)

We use Cursor, Claude, ChatGPT, GitHub, and Slack daily.

You Control AI, AI Doesn't Control You. We ship faster because we use AI tools aggressively. Cursor and Claude. But you own the output. If you can't evaluate what AI produces, you're not ready for this role.

What You'll Do

• Build proxy infrastructure from scratch. Not integrate existing solutions. Write the core systems yourself.
• Design and implement rotation systems. IP rotation, session management, sticky sessions, intelligent routing.
• Manage IP reputation and quality. Monitor, track, score, and optimize IP health across pools.
• Build bandwidth reporting and metering. Track usage, report stats.
• Write reverse proxy systems. High-performance, optimized for our use case. Not just configure squid or nginx.
• Handle multiple proxy types. Residential, mobile, datacenter, ISP. Understand the differences, characteristics, and when to use each.
• Implement geo-targeting. Country, city, ASN level targeting.
• Optimize for performance. Every millisecond matters. Every connection matters.
• Work with networking fundamentals. Routing, DNS, TCP/UDP tuning, connection pooling, concurrent connection limits.
• Support multiple protocols. SOCKS5, HTTP, HTTPS. Different session types and authentication methods.