/ About
13+ years building outbound at scale.
Led outbound for B2B SaaS and agency growth. Multilingual revenue operations across EN, FR, and ES. Now running a focused studio that treats outreach as engineering — not theater.
Based in
Niš, Serbia
Selling in
EN / FR / ES
Years in outbound
13+

/ Founder
Aleksandra Jelenic
Founder · Outbound operator · 13+ years
13 years designing and running outbound systems — from full-cycle SDR roles to leading revenue operations at agency scale. Hired, trained, and managed multilingual teams across EN, FR, and ES. Built 21 Century Sales to do outbound the way it should be done: as systems engineering, not guesswork.
LinkedIn ↗I spent 13 years in the trenches of B2B outbound — starting as an SDR, building pipeline for SaaS startups, then running revenue operations at agency scale. Along the way I built systems that generated $4.2M+ in qualified pipeline across 40+ accounts, pushed cold-email reply rates from industry baseline to 18–34% through sequencing and deliverability engineering, and lifted SQL-to-close conversion by 22% by tightening ICP targeting and handoff SOPs. I hired, trained, and managed outbound teams across three continents in English, French, and Spanish. I know what works because I've shipped it, broken it, and fixed it under real quota pressure.
That experience became 21 Century Sales. I built the studio I always wished existed: outbound treated as systems engineering, not theater. We design the motion, instrument the data, harden deliverability, and operate it continuously. The output is qualified meetings and real pipeline — not vanity sends.
Today I work directly with founders and growth leaders at B2B SaaS and agencies. Every engagement is led by me, with a small bench of vetted specialists (Clay engineers, deliverability ops, multilingual SDRs) brought in as the account scales. Nothing is offshored to junior hires. If we can't move your number, we tell you in week one.
/ Delivery model
Every account is led personally by Aleksandra, drawing on 13+ years of outbound leadership and a specialist network that scales with your pipeline goals — never handed off, never offshored to untrained staff.
/ Selected outcomes
$4.2M+
Qualified pipeline generated across SaaS & agency accounts
18–34%
Cold email reply rates vs. 3–5% industry baseline
22%
Lift in SQL-to-close conversion after ICP & handoff fixes
$1.1M
Net-new ARR attributed to outbound within first 12 months
Stack
Clay, Smartlead, Apollo, Instantly, HubSpot, Salesforce, LinkedIn Sales Nav
Verticals
B2B SaaS, dev tools, agencies, fintech, RevOps platforms
Geos
North America, EMEA, LATAM