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Dmytro S.

Dmytro S.

Backend Services Engineering | Cloud Services, Amazon, Azure

I help companies design, build, and scale reliable backend systems using Java and cloud-native technologies. With strong hands-on experience and a technical lead mindset, I focus on clean architecture, performance, and long-term maintainability. What I do best: - Java backend development (Java, Spring Boot, Spring Cloud) - Microservices architecture & REST APIs - Cloud & containerized systems (Docker, Kubernetes, GCP/AWS) - Data processing & integration (SQL, Kafka, event-driven systems) - System modernization & legacy migration - Performance tuning, debugging, and production issue resolution - Technical leadership: architecture decisions, code reviews, mentoring Why clients work with me: - Strong focus on business value, not just code - Clean, well-documented, and testable solutions - Experience leading teams and owning systems end-to-end - Clear communication and proactive problem solving If you need a senior engineer who can both build and lead, I’d be happy to discuss your project.

🇺🇦Irpin, Ukraine$35/hr100% JSSSince Jan 2026

Earnings and projects

MRR
$839

Last 6 months ÷ 4 months active (since Jul 2026)

World#55,925 / 412k
🇺🇦Country#2,366 / 14.3k
Revenue, last 30 days
$1.2k

Last 6 months: $3.3k

World#36,299 / 412k
🇺🇦Country#1,598 / 14.3k
Total earnings
$3.4k

Billed in all: $3.6k

World#288,117 / 412k
🇺🇦Country#11,282 / 14.3k
Per project
$3.4k

$3.3k in the last 6 months

World#50,066 / 412k
🇺🇦Country#2,790 / 14.3k
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇺🇦Country#4,718 / 14.3k
Projects in all
1
0% fixed100% hourly
World#360,671 / 412k
🇺🇦Country#13,083 / 14.3k

Earnings, last 30 days

$3.6k+$1.2k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$2k$3k$4kOct 8Oct 23Nov 7

Skill rankings: Top 11% in Java

Ranked by MRR among everyone on Upwork with the skill.

  1. 2Apache Avro2 freelancers · 🇺🇦 #1Top 100%
  2. #74GitLab592 freelancers · 🇺🇦 #10Top 13%
  3. #75Big Data559 freelancers · 🇺🇦 #5Top 13%
  4. #103International Development623 freelancers · 🇺🇦 #10Top 17%
  5. #107Spring Framework880 freelancers · 🇺🇦 #15Top 12%
  6. #137Apache Kafka981 freelancers · 🇺🇦 #20Top 14%
  7. #324GitHub2,823 freelancers · 🇺🇦 #29Top 11%
  8. #439Kubernetes3,351 freelancers · 🇺🇦 #25Top 13%