David Mustac
BD & Sales Operations

Sales operations, business analysis,
and technical execution.

Client-facing B2B work across business development, sales operations, market analysis, and process automation for international clients. Now bringing that execution experience to enterprise.

MEng in AI/Automation Engineering. Croatian native, fluent English, basic German.

2
Sales Processes
Built from Zero
300+
Projects Evaluated
at Seedify
20+
Clients Served
at MasterBlox
Where I add value
01
Sales Operations
CRM implementation, sales process design, lead qualification workflows. End-to-end pipeline management from prospecting to closed deals.
Pipedrive Apollo Sales Navigator Expandi n8n
02
Business Analysis
Cost-benefit analysis, ROI modeling, pricing strategy, and commercial analytics. Real experience with enterprise datasets — revenue, margins, and profitability analysis across channels and markets.
Python SQL Excel Notion
03
Market & Data Analysis
Research-backed strategy with interactive dashboards. Competitive analysis, pricing models, market sizing — backed by real data, not slide decks.
Chart.js Next.js Recharts Python
Data-driven work samples
CRM Migration
D365 Migration — Cost-Benefit
€179K. 45 users. 38.3% projected ROI. Break-even and risk modeling, stakeholder-ready in one click.
Financial Modeling D365
Open report →
Enterprise Pricing
CPaaS Pricing — Infobip vs Twilio
13 markets. 4 channels. 10M messages/month. Plug in volumes and watch the cheapest channel mix recalculate live.
Competitive Analysis Next.js
Open report →
Market Sizing
Revolut Croatia — Opportunity Map
500K Revolut users in Croatia. 5 banks benchmarked. Three growth pillars. All data sourced from HNB.
Market Sizing HNB data
Open report →
Market Exit Analysis
Why Bolt Food Left Croatia
Reverse-engineered from FINA filings. Four failure factors — none of them obvious from the press release.
Competitive Intel FINA data
Open report →
Sales Unit Economics
CEE SDR Cost-Per-Meeting
€1,800/mo SDR looks cheap. Real cost per held meeting is closer to €350. Plug in your numbers, see yours.
Unit Economics Sales Ops
Open calculator →
Industry Analysis
Aircash & Kekspay — Croatian Payments
Two Croatian payment platforms — business models, fees, market dynamics. The LinkedIn version pulled engagement from senior fintech execs at Aircash and Bankart.
Market Research Payments
Open dashboard →
Industry Mapping · Featured
Croatian B2B SaaS — 23 Companies Mapped
Infobip is €1.85B. Nobody else is over €100M. Three of the top four moved HQ abroad. Sortable, sourced.
Market Research Vertical Analysis
Open dashboard →
Professional background
MasterBlox · Growth & Marketing Agency · Lisbon
Feb 2025 — Present
Growth Specialist
Running cross-platform growth campaigns across 20+ clients — community onboarding, engagement tracking, and narrative management. Tracked acquisition, engagement, and retention metrics weekly with strategic feedback to founders. Built automated lead scoring system using Python, Claude Code, and n8n — cut a 4-hour manual research process down to 10-minute qualification batches. Workflow automation connecting lead research, scoring, and outreach.
Seedify · Venture Platform · Global
Nov 2025 — Mar 2026
Venture Scout
Diligence on 300+ early-stage technology projects — evaluating team quality, technical readiness, and market potential against a structured analytical framework. Tracked ecosystem signals (funding rounds, product launches, market shifts) and prioritized high-conviction opportunities. Coordinated with Research, Strategy, and Investment teams for end-to-end pipeline visibility.
Thespian · Custom Software Development · Zagreb
Mar — Nov 2025
Business Analyst
Analyzed business processes and built a complete B2B sales process from zero — lead capture, qualification, proposal, deal tracking, and delivery. CRM requirements definition, multi-channel outreach integration (Sales Navigator, Apollo, Expandi, Pipedrive), Notion documentation. Pipeline visibility improved ~30%. Cross-functional coordination with product, marketing, and engineering teams.
Resomnium · AI Solutions Consultancy · Zagreb
Aug 2024 — Nov 2025
Business Development & Strategy Analyst
Advised 5+ SMB and startup clients on AI/SaaS adoption — discovery, business cases with ROI projections, proposal writing, and contract close. Translated technical solutions for C-level stakeholders. Market analysis and competitive positioning for product launches.
Bitget · Global Cryptocurrency Exchange
May 2024 — Apr 2026
Branding and Growth Builder — Balkans
Sole point of contact for the Balkan region at a global cryptocurrency exchange. Built regional brand and growth from zero — organized 5+ events with 40+ participants each, ran affiliate and partnership networks across multiple cities. 50% increase in regional engagement.
University of Rijeka
MEng — AI / Automation Engineering
Thesis: Detection of fraudulent accounts using ML algorithms
Languages
Croatian (native) · English (C1, fluent) · German (basic)