DK°
VIENNA · 1050
DUŠAN KOSTIĆ — SALES & BUSINESS DEVELOPMENT

Building markets.
Closing deals.
Leading teams.

13+ years turning custom-engineered combustion and energy systems into signed contracts — across 20+ countries, from cold markets to a founded subsidiary.

+43 676 9292855 dusan.kostic.1981@gmail.com linkedin.com/in/kosticdusan
Dušan Kostić
01 Career flow PROCESS SCHEMATIC
2013–15
Project Engineer
Dumag GmbH, Austria — P&IDs, technical documentation, vendor coordination
2015–17
Project Manager
Dumag GmbH, Austria — budgets, timelines, client delivery
2017–07/2026
Sales Manager, Asia & Eastern Europe
Dumag GmbH, Austria — new markets from zero, agent networks, key accounts; ran the whole process in Salesforce, skilled in day-to-day CRM use
LINE FORKS 2017 — PARALLEL RUN
2017–07/2026
Managing Director & Founder
DUMAG d.o.o., Serbia — built from zero, covering all legal documents; took care of the whole recruiting business, growing to 15+ people; started a fully certified carbon and stainless steel workshop
02 Core systems COMPETENCIES
International B2B Sales
Business Development
Market Entry from Zero
P&L & Company Management
Team Leadership
Technical Sales (Industrial)
Cross-Cultural Negotiation
Salesforce
HR / Recruiting
Agent Network Development
03 Recently installed AI & AUTOMATION
RETROFIT MODULE — ACTIVE

A newly discovered passion, already in production: applying AI to modernise the sales process itself, running hands-on out of a dedicated mini-PC.

  • AI-driven workflow generating commercial offers, P&IDs and process documentation from technical specs
  • 3D modelling automation for industrial visualisation
  • Fully autonomous social media content pipeline
  • Local Claude Code environment for ongoing prototyping
04 Languages & education
Serbian
NATIVE
German
C2
English
C2
Spanish
C1
Russian
B1
MSc / Dipl.-Ing., Mechanical Engineering
Faculty of Technical Sciences (FTN), Novi Sad
Specialisation: Energy & Process Engineering
2000–2011