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I'm Youssef Hesham. I work inside one revenue team at a time, for SaaS, ecommerce, and cybersecurity companies, and build the outbound systems an agency can't. Everything below is what those systems produced.
connect on LinkedIn ↗Alexandria, Egypt
Melanie Meyer"Youssef is a powerhouse GTME - he's persistent, professional, and not afraid of hard work. I loved our time working together and witnessing how he responded to a variety of situations. He is a fast learner and gets results quickly. He definitely made it easy to work with him!"
Kellen Casebeer"Youssef is a special outbound talent. He brings intensity, creativity, and fundamentals in a way that was always a pleasure to work with. It's easy to recommend his work, and if you're looking for someone to deputize to bring you meetings, he's an excellent choice."
Ozlem Schmidt"We were very happy with Youssef's work. He is highly skilled & technical, very well organized. He completed the deliverables on time and handed it in a perfectly organized way which highly exceeded our expectations."
// recorded runs
Recorded from real production runs, with the data sanitized. Pick a system and watch what it does for you.
// the systems
Everything here shipped and ran in production. Most of it I built inside companies I've worked at, the rest for clients. Every one runs on evidence: I audit the data going in and verify the numbers coming out.
// flagship
Replaces a paid outbound-sync SaaS on owned workflows.
In-house replacement for Clay. Took the Clay bill to zero.
Stale pipeline surfaced and put back in motion.
A 4,755-lead personalized send, written in ~4 minutes.
// 26 systems · type to filter, or just browse ↓
Shows which of your emails land in the inbox and which die in spam, before a campaign goes out.
Real-copy placement tests across the whole sending fleet, so I know which inboxes actually land before a campaign goes out.
Catches a silent authentication failure before it quietly tanks a send.
SPF, DKIM, DMARC, blacklist and Spamhaus diagnostics across every sending domain, on a schedule.
Moves your sending off a shared, burned pool onto owned inboxes that actually deliver.
Moves a whole program off a shared dirty sending pool onto owned, prewarmed infrastructure.
Keeps undeliverable addresses out of the send so your domain reputation stays clean.
Verification-backed suppression that keeps undeliverables out of the send and protects domain reputation.
Builds and enriches your whole target market in one pass: traffic, ads, firmographics, and buying temperature.
One command sources, qualifies and enriches a 40k-account universe with traffic, ads, firmographics and buying temperature.
valid-contact coverage 48% to 85%, at a fraction of vendor cost
Puts your reps on the highest-intent accounts first instead of a flat list.
Problem-size over wallet-size scoring that tiers every account, so reps work the highest-intent list first instead of a flat dump.
Finds verified work emails on the hard, faceless lists paid finders give up on.
Pattern permutation, coworker inference and catch-all resolution that surfaces reachable emails on lists paid finders give up on.
Answers the research questions no database can, like who owns a faceless store.
Bulk cited-answer enrichment across the open web for the questions APIs can't answer, like the owner behind a faceless store.
Reads a competitor's real checkout in each market: shipping cost, duties, and who they ship with.
Walks a store's real checkout per market and reads back the shipping cost, DDP/DDU incoterm, and which competitor or merchant-of-record they use.
98% anti-bot pass; $6-15 per 1,000 stores
Names the cross-border provider a store runs, so your pitch can call out the incumbent.
Detects the cross-border provider a store runs so a pitch can name the incumbent instead of guessing.
84% competitor-ID accuracy on a 334-store bench
Counts how many ads a brand runs per country, free, validated against a paid tool.
Free per-country ad counts from Meta Ad Library and Google Transparency Center, validated against a paid vendor.
0.80 correlation vs the paid tool, at $0
Turns one person into an audit team for the stores bots can't crack.
Published side-panel that turns a human into an audit machine for the stores bots can't crack.
Puts a name to your anonymous B2B visitors and fires outbound tied to the pages they viewed.
Identifies anonymous B2B website visitors (RB2B) and fires outbound tailored to the exact pages they viewed, so intent turns into a booked call.
Re-engages a past champion the moment they land in a new role.
Watches past champions for job changes and enrolls them into the right sequence the moment they land somewhere new, suppression checks first.
Surfaces who on your team already knows the buyer, turning cold accounts warm.
Cross-references the whole team's LinkedIn connections against open deals to surface who already knows the buyer.
Drafts every reply as a Slack card your reps can send, edit, or rewrite in one tap.
Every reply is classified and drafted as an interactive Slack card with send, edit and rewrite, mirrored into Gmail, with a double-reply guard.
rewrites at $0.0066 each; learns each rep's voice
Turns a sales call into a recap, a CRM log, and a follow-up draft the same day.
Sales call to AI recap to a draft in the rep's inbox, a CRM meeting log and a Slack DM, same day.
$0.07-0.10 per call
Surfaces every stale deal and unanswered lead, drafts the follow-up, and books the meeting.
Surfaces stale deals and unanswered interested leads, drafts the follow-up, and routes the meeting to the right rep on rotation.
$4.6M stale pipeline surfaced
Describe a campaign in a sentence and get the whole thing back: list built, copy written per person, ready to send.
Describe a campaign in a sentence; the system builds the list, writes unique copy per person, validates every line and uploads it, the whole send generated.
4,755-lead campaign written for $7.65 in ~4 min
An in-house replacement for Clay, so the enrichment bill stops recurring.
A full lead-enrichment platform with a virtualized 50k-row grid, a money-safe enrichment engine, and an MCP server so agents can drive it.
729/729 tests green; 50k rows at 60fps
Runs the whole GTM engine by command instead of tribal knowledge.
The referential context, skills and memory system behind all of my work in Claude Code, so the GTM engine is operable by command.
40+ in-house skills
Ten always-on automations doing the work no one should do by hand.
Ten standing automations on owned infrastructure: sync jobs, linkers, attribution stampers, copilots and trackers.
Cleans and re-attributes a messy CRM at scale, so the data is trustworthy again.
HubSpot hygiene at scale: source-attribution backfill, deal-contact linking, dynamic do-not-contact sync.
81,892 contacts re-attributed
Shows which campaign actually drove each deal.
Human-reviewed campaign-to-deal matching, built before the company had multi-touch, then grown into company-wide linear multi-touch through HubSpot.
Validates every write so the CRM gets more trustworthy each week instead of rotting.
Validation statuses, enrichment timestamps and rollback files on every write.
Replaces a paid outbound-sync tool with owned workflows at no license cost.
In-house replacement for a paid outbound-sync SaaS, on owned workflows at $0 license cost.
replaces a paid SaaS at $0 license cost
// the_systems · shadow tier
The same craft pointed at competitive and security intelligence: what a competitor is doing, what a target has left exposed, and the stealth layer the audits run on. Builds I can stand up and replicate. Press run on any system to watch it work.
// 8 systems · a few replay in the terminal above
Darknet + paste-site leak intelligence. Watches breach dumps, Telegram channels and paste feeds for a target's domains, emails and credentials, and fires an alert the moment they surface.
→ tor · telegram · sub-hour alerts
TLS + DNS adoption watchdog. Streams every new certificate a target issues and every DNS record they change, so a new subdomain, vendor or sending domain is caught the hour it goes live.
→ certstream · passive dns · spf
Email-infrastructure fingerprinting. Reads a company's MX, DKIM selectors and sending patterns to map exactly what they send with, and flags lookalike domains spun up to impersonate them.
→ mx · dkim · lookalike radar
Exposed-asset hunter. Sweeps a target for the things nobody meant to leave public: open S3 buckets, shared Trello/Airtable boards, exposed .git directories and env files.
→ s3 · trello · .git · airtable
Funnel surveillance. A network of catch-all inboxes and seed identities that get enrolled into competitors' sequences, so their entire outbound funnel (copy, cadence, offers) replays back to me.
→ catch-all · auto-enroll · espionage
Shodan/Censys technographics. Reads a target's internet-facing banners and service fingerprints to profile their whole stack (servers, panels, vendors) without ever touching their site.
→ banner intel · zero-touch
Change-diff radar. Snapshots a target's pages, pricing and ad-library creatives on a schedule and diffs them, so a quiet price change, new landing page or fresh ad campaign pings me first.
→ snapshots · ad libraries · alerts
Proxy + fingerprint infrastructure. The stealth layer under everything else: rotating residential exits and per-session browser fingerprints, so every scrape and audit runs clean and un-throttled.
→ residential rotation · stealth
// how I work
No agency, no account managers, no junior doing the real work behind a senior's name. I take on one revenue team at a time and build the systems into the way you already sell, at a depth an agency billing by the month never gets time for.
It isn't only the plumbing. I write the copy people thank me for getting, and I do the positioning, segmentation, roadmapping, and account scoring that decide who the machines even talk to.
On the first call I go through your current outbound with you and point at what I'd build first. That's the free teardown, no pitch.
// background
Youssef Hesham · GTM Engineer · Alexandria, Egypt
GTM Engineerpresent
OpenBorder
Sr. GTM Engineer
The Deal Lab · 2025
Head of GTM Strategy
OneAway · 2025
Head of Outbound
Vital Traffic Labs · 2021 - 2025
// the stack
The tools I wire together into systems, and the ones I've replaced with owned infrastructure.
// wired into systems
// references
"Youssef has been a highly effective GTM partner I've worked with on a project recently. He helped build out major pieces of our outbound system in early days and spun things up fast. During the onboarding process was great knowing we had a trusted advisor with a deep understanding in various new age tech to reach the right people within orgs consistently."
Adam Ahmad"Youssef took our hardest segment and made it our most responsive. He found signals in clinical trial data that nobody else was using and built outreach around them. He learned our world fast!"
Newsha Ghaeli"Youssef is a pleasure to work with and an exceptionally talented GTM Engineer. He brought top-tier creativity to all campaigns that we worked on together, and it seemed like he was always available - no matter the time of day or night."
Lance Parthemore"Youssef is a special outbound talent. He brings intensity, creativity, and fundamentals in a way that was always a pleasure to work with. It's easy to recommend his work, and if you're looking for someone to deputize to bring you meetings, he's an excellent choice."
Kellen Casebeer"Youssef is a powerhouse GTME - he's persistent, professional, and not afraid of hard work. I loved our time working together and witnessing how he responded to a variety of situations. He is a fast learner and gets results quickly. He definitely made it easy to work with him!"
Melanie Meyer"Youssef was absolutely fantastic to work with. Incredibly hard working, fast to respond, and able to handle any automations that we threw at him. Would highly recommend."
David Schlais"We were very happy with Youssef's work. He is highly skilled & technical, very well organized. He completed the deliverables on time and handed it in a perfectly organized way which highly exceeded our expectations."
Ozlem Schmidt"I've worked with Youssef on the launch of a whole new project, and during the journey Youssef was always supportive, and dedicated, not only did he do his job, but also he kept supporting the team in their works and support them with materials and ideas."
Yasser Ghallab