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Dragan B.

Dragan B.

Senior Software Developer/Architect

I am a senior software developer/architect with over 15 years of professional experience. I bring deep expertise in building and delivering complex systems, ranging from back-office applications to real-time processing of high-volume data. I have built and maintained distributed systems across various domains, like fintech, iGaming, data privacy, IoT and large online marketplaces. I use AI coding tools (mostly Codex and Claude Code so far) all the time and find them very effective for accelerating development. Furthermore, I worked on integrating LLMs into an open-source coding assistant, which gave me practical familiarity not only with using AI-powered development tools, but also with how these tools work internally (context selection, orchestration of sub-agents, tools integration, MCP, etc). I look forward to the possibility of discussing how my background fits your current needs.

🇷🇸Belgrade, Serbia$50/hr100% JSS5.00 (8)Since Sep 2015

Earnings and projects

MRR
$1.2k

Last 6 months ÷ 6

World#41,282 / 412k
🇷🇸Country#413 / 4,015
Revenue, last 30 days
$7.6k

Last 6 months: $7.1k

World#2,610 / 412k
🇷🇸Country#25 / 4,015
Total earnings
$434k

Billed in all: $441k

World#3,772 / 412k
🇷🇸Country#52 / 4,015
Per project
$29k

$7.1k in the last 6 months

World#3,072 / 412k
🇷🇸Country#37 / 4,015
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇷🇸Country#1,119 / 4,015
Projects in all
15

Across 17 contracts

12% fixed88% hourly
World#161,377 / 412k
🇷🇸Country#1,988 / 4,015

Earnings, last 30 days

$441k+$7.6k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$430k$435k$440k$445kOct 8Oct 23Nov 7

Skill rankings: Top 9% in Object-Oriented Programming

Ranked by MRR among everyone on Upwork with the skill.

  1. #7Swing43 freelancers · 🇷🇸 #1Top 16%
  2. #7Event-Driven Programming38 freelancers · 🇷🇸 #1Top 18%
  3. #40Object-Oriented Programming438 freelancers · 🇷🇸 #1Top 9%
  4. #71Hibernate677 freelancers · 🇷🇸 #1Top 10%
  5. #73NoSQL Database686 freelancers · 🇷🇸 #3Top 11%
  6. #212Spring Boot2,150 freelancers · 🇷🇸 #4Top 10%
  7. #333Kotlin3,021 freelancers · 🇷🇸 #7Top 11%
  8. #507Large Language Model2,726 freelancers · 🇷🇸 #2Top 19%