Nathan Brecher
Infrastructure engineer at SquadProxy focused on the gateway architecture, per-class routing, exit identity capture, and the specific plumbing behind the header-based proxy pattern.
Network engineering and CDN infrastructure background (~10 years), including two years on the operations side of a major residential proxy network before joining SquadProxy.
Nathan owns the infrastructure side at SquadProxy. The gateway that turns "one HTTP endpoint + a few headers" into "five exit classes across 10 countries" is his. If you've read the posts on Common Crawl, HuggingFace, or arXiv, that's Nathan's framing.
Background
Nathan worked on CDN infrastructure at a major content platform from 2015-2022, then spent two years on the operations side of a residential proxy network (which shall remain nameless because reviews of their sourcing practices were a material factor in the move). Joined SquadProxy at founding to build the gateway and pool-management stack.
Writing on SquadProxy
- Proxies for Common Crawl: when you need one, when you don't
- Proxies for Hugging Face dataset downloads
- Proxies for arXiv bulk download
- Choosing a proxy for LLM training data collection
- Proxies for AI browser agents: the 2026 workload shape
- Proxies for Claude Computer Use
- Proxies for ChatGPT Operator
What he's working on
The X-Squad-Session contract gets more expressive in Q2
2026: specifically, session-scoped retry semantics for agent
workloads where a mid-session failure shouldn't require a full
task restart. Also on deck: a finer-grained observability
surface so customers can see per-session latency and
success-rate metrics without waiting for the aggregate billing
view.
Contact
Nathan handles technical integration questions, especially around agent configuration and per-source routing patterns. hello@squadproxy.com with "infra" in the subject.
Writing by Nathan Brecher
23 Apr 2026
Proxies for AI browser agents: the 2026 workload shape
AI browser agents — Claude Computer Use, ChatGPT Operator, Gemini-based web agents, and the long tail of open-source browser agents — hit the web from a new angle. The proxy layer below them has specific requirements that general- purpose proxy products don't meet. Here's what matters.
23 Apr 2026
Proxies for ChatGPT Operator: browser-agent configuration that works
ChatGPT Operator runs browser-based task execution for end users. Operator-style agents (Operator itself, open-source clones, custom GPTs with browsing) all share a proxy configuration shape. A working reference.
23 Apr 2026
Proxies for Claude Computer Use: session patterns and exit-class choice
Claude Computer Use operates browsers at screen-pixel level. The proxy layer below it needs specific configuration to keep agent sessions coherent and avoid anti-bot challenges. A working guide for production Computer Use deployments.
22 Apr 2026
Choosing a proxy for LLM training data collection: criteria that actually matter
Listicles ranking "best proxies for AI" miss the criteria that AI engineers weigh in practice. A honest breakdown of the tradeoffs — pool provenance, ASN diversity, bandwidth economics, concurrency ceilings, and legal footprint — for teams collecting LLM training data at scale.
22 Apr 2026
Proxies for arXiv bulk download: OAI-PMH, S3, and the API — which needs which
arXiv publishes three access paths with different rate-limit behaviour, and only one of them benefits from proxies. A practical breakdown of when to use OAI-PMH metadata harvests, the S3 PDF mirror, and the arXiv API — and where proxies fit.
22 Apr 2026
Proxies for Common Crawl: when you need one, when you don't, and how to route
Common Crawl publishes ~250 TB of web content per monthly snapshot and makes most of it freely accessible from S3. Proxies still have a role — but a narrower one than most scraping guides suggest. A working engineer's breakdown.
22 Apr 2026
Proxies for Hugging Face dataset downloads: when HF_HUB_DOWNLOAD_TIMEOUT won't save you
Hugging Face rate-limits aggressively per-IP. Raising the timeout doesn't help; the server has already decided. A practical guide to routing HF bulk pulls through a proxy layer without breaking LFS resumption.
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Real ASNs, real edge capacity, and an engineer who answers your Slack the first time.