8 years inside proxy infrastructure. Started in support, ended up building residential proxy products from scratch. I know this industry from the network layer to the pricing model.
Portugal · Europe · Remote·yevheniiharba@gmail.com·LinkedIn
What I've actually built
Not theory. Real systems, running in production.
Everything below I built while working at a proxy company for 8 years. Most of it I figured out from scratch, without a team or a playbook.
01
Static DCH & ISP proxy infrastructure
Buying IP blocks from LIRs and brokers, setting up ASNs, finding datacenters to announce them, configuring routing, keeping ISP classification intact across GeoIP databases. Learned by doing.
Evaluating hosting partners for IP announcement, understanding what BGP vs static routing means for classification, working with GeoFeed to correct database records. Done across multiple setups.
Partner evaluation: BGP vs static routing
ASN setup and route object management
GeoFeed workflows and update cycles
POP alignment and classification stability
03
Compliance, abuse & throttling
Built the full compliance framework: AUP, DMCA handling, abuse intake and escalation, upstream communication. Also designed the throttling system controlling concurrent sessions and RPS per client, so one customer couldn't affect neighbors on the same server.
Abuse intake, classification, escalation
Concurrent session and RPS limits per client
Upstream compliance communication
AUP design and enforcement logic
04
Fair Usage Policy & pricing
Designed the FUP from scratch: traffic segmentation, thresholds, trigger logic, customer messaging. Then rebuilt the pricing model around it so the cost-per-GB economics worked at scale.
Traffic intensity segmentation
FUP thresholds and customer messaging
Cost-per-GB analysis and margin modeling
Competitor pricing benchmarking
05
Supplier procurement & partnerships
Finding proxy suppliers, running calls, negotiating GB-based pricing, technical due diligence before scaling. Built the full lifecycle: discovery, testing, production, rotation, exit.
Supplier discovery, calls, negotiation
Technical testing before production
Volume-based deal structuring
Supplier rotation without downtime
06
CRM & internal product specs
Wrote specs for internal tooling: usage and traffic reports, IP occupancy tracking per client, network and provider accounting in the CRM. Translated operational pain into requirements engineering could ship from.
Usage and IP occupancy tracking
Network and provider accounting logic
Spec writing from operational requirements
Internal QoL tooling for ops teams
07
Residential proxy architecture
Researched and designed residential proxy infrastructure from zero. Analyzed BrightData and Oxylabs patents to understand how they built it. Covered SDK supply, traffic routing, load balancer logic, throttling, compliance, and the full pricing model.
SDK supply model and DAU pool economics
Traffic routing and load balancer design
Compliance and consent framework
Full pricing model and cost structure
08
Scraper API & Web Unlocker
Researched scraper products from scratch: how JS rendering works, antibot handling, per-domain RPS constraints, compliance limits. Wrote the product spec, tier structure, and pricing before any code was written.
JS rendering, antibot, SERP, AI extraction
Domain-level RPS and compliance constraints
Core vs Advanced tier logic
Request-based pricing and margin structure
Expertise
Eight years in one industry. A lot of ground covered.
I can talk to a network engineer about BGP and to a CFO about unit economics. Not many people in this space do both.
Proxy infrastructure
Residential, ISP, DCH architecture
Backconnect gateway and entry node logic
Sticky sessions and rotation behavior
HTTP(S) and SOCKS5 protocols
Enterprise use cases and access restrictions
Compliance, abuse handling, KYC workflows
IP routing & geolocation
LIRs, brokers, IP block acquisition
ASN setup, BGP vs static routing
ISP vs DCH classification and preservation
MaxMind, IP2Location, DB-IP, IPinfo
GeoFeed and database correction workflows
POP alignment and route propagation
Supplier & procurement
SDK-based residential supply and DAU economics
Supplier discovery, qualification, lifecycle
Technical and commercial due diligence
GB-based volume negotiation
SLA design and escalation process
Supplier diversification and risk management
Product & commercial
Scraper API architecture and product spec
Throttling: concurrent sessions, RPS isolation
Fair Usage Policy design and enforcement
Pricing models: per-GB and per-request
Competitor analysis: BrightData, Oxylabs, Decodo
Spec writing and engineering handoff
How I work
Started in support. Ended up building products. That path matters.
The first years I understood the product from the customer side: what breaks, what confuses people, what they need. That lens stuck, even when the job became infrastructure and procurement.
When I build something I start from the problem, not the solution. For a throttling system or a pricing model, I want to understand the economics and failure modes before writing a spec.
01
Start from what the infrastructure can actually do
Before designing a product or signing a supplier deal, I check whether the infrastructure actually supports it. Routing, classification, GeoIP, cost per GB. Most product problems trace back to assumptions that weren't tested here.
02
Test suppliers against specific product thresholds
A supplier that works for one product tier often doesn't work for another. I test against the actual quality bar, not a generic benchmark, and document gaps before scaling any traffic.
03
Work out unit economics before building
Pricing and cost structure need to be figured out before features. I've seen products that couldn't be priced sustainably because the infrastructure assumptions were wrong from day one.
04
Write specs that don't need a meeting to explain
Coming from support and ops, I know what happens when a requirement is vague. The specs I write cover edge cases and failure modes, not just the happy path.
Looking for
A company with something real to build.
Looking for a proxy, data infrastructure, or IP services company where someone with this background can step in at a senior or leadership level and move things forward.
I've built most of this before. Fewer mistakes, faster ramp-up, less time explaining why something is harder than it looks.