GTM Engineer · Belgrade, Serbia
I build the machines that fill B2B pipelines.
I am a GTM engineer. I take a company's idea of its best customer and turn it into a working system: the list, the data behind every row, the copy each segment gets, the sending infrastructure, and the automation that keeps all of it alive after launch.
Most of my work runs at Prospeqt, where I do this for several clients at once. The part I like is the plumbing - the enrichment waterfalls, the routing logic, the gates that stop a bad row from ever reaching a real person.
What I do
- Lead data and enrichment
- Sourcing, cleaning, and enriching lists so every row carries the signals the copy needs. Waterfalls across providers, verification, and hard gates before anything is sent.
- Cold email infrastructure
- Domains, inboxes, warmup, sending schedules, and deliverability monitoring. Built so volume can grow without burning the sending reputation.
- Segmentation and copy systems
- Splitting a market into segments that deserve different messages, then wiring each segment to its own sequence with variables that are always populated.
- Automation and internal tools
- Scrapers, APIs, dashboards, and scheduled jobs that replace the manual steps - so the system reports on itself instead of needing someone to check it.
Selected work
Multi-client outbound engine
Clay, Instantly, EmailBison
One Clay architecture serving several clients at once: a company hub feeding per-segment people tables, each pushing into its own sequencer campaign behind deliverability gates.
Campaign QA harness
Python, REST APIs
A three-layer check that runs before any campaign goes live - variable presence, segment routing, and copy quality - so broken merge fields never reach a prospect.
Outreach dashboard
Python, Supabase, Render
A single view of sending volume, reply rates, and lead runway across every client and both sequencers, refreshed on its own schedule.
Tools I use
The software I build on day to day. No affiliation with any of them.
Writing
All postsAre we a fit?
Probably yes
- You sell B2B, and one signed customer is worth four figures or more.
- You want a system you keep, not a list someone hands you once.
- You can live with a segment being run by hand before it gets automated.
- You would rather send less and keep the domain than send more and burn it.
Probably not
- You need meetings this week. Data work comes first, and it takes longer than that.
- You want the cheapest possible volume. That is the fastest way to a dead domain.
- You sell to consumers. Nothing here transfers.
- You want the sending handed over and never looked at again.
Let's talk
If you are trying to build outbound that survives past the first campaign, write to me. I answer everything.
Get in touch