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Roman Z.

Roman Z.

Systems Architect, Fractional CTO, DevOps, AWS Optimization

Top 1% Upwork expert full-stack software engineer, architect, and technology leader focused on software architecture, AWS, Node.js, Python, database design/optimization, CI/CD, and DevOps. I use modern AI Agentic tools to build MVPs or full scale apps in a short timeframe. Agentic tools: Claude Code, OpenClaw, N8N Programming: TypeScript/JavaScript, Python, Node.js, Shell Frameworks: Nest.js, React, Express, Django Databases: PostgreSQL, MySQL, DynamoDB, Timestream, MongoDB AWS: Lambda, API Gateway, ECS, RDS, SQS, SNS, S3, EC2, Route53, Redshift, CloudWatch, Serverless, etc. DevOps: CloudFormation, SAM, Terraform, CodePipeline, GitHub Actions, CI/CD AI/Automation: n8n orchestration; OpenAI/Anthropic tool calling; optional RAG/pgvector when needed; guardrails/observability Containers: Docker, Docker Compose, ECS, Kubernetes Blockchain: Ethereum, Algorand, DeFi, Hyperledger Indy/Aries, Self-Sovereign Identity Analytics/BI: Qlik, Tableau, Fine BI, Power BI Other: Software Architecture, Stripe payments, Stock/options trading Highly proficient in FinTech, DeFi, and financial services. Open to: Fractional CTO, Technical Advisor, Project Rescue

🇺🇸Boca Raton, United States$150/hr100% JSS5.00 (20)Since Feb 2020
GlobeUpwork

Earnings and projects

MRR
$25

Last 6 months ÷ 6

World#162,370 / 412k
🇺🇸Country#21,515 / 62.1k
Revenue, last 30 days
$0

Last 6 months: $148

Total earnings
$476k

Billed in all: $479k

World#3,093 / 412k
🇺🇸Country#1,016 / 62.1k
Per project
$16k

$148 in the last 6 months

World#8,536 / 412k
🇺🇸Country#1,515 / 62.1k
Projects, last 6 months
1
0% fixed100% hourly
World#128,095 / 412k
🇺🇸Country#16,472 / 62.1k
Projects in all
30

Across 34 contracts

18% fixed82% hourly
World#97,487 / 412k
🇺🇸Country#14,500 / 62.1k

Earnings, last 30 days

$479kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$470k$475k$480k$485kOct 8Oct 23Nov 7

Skill rankings: #1 in 1 skill of 17

Rarest: top 17% in Algorand, of 6. Ranked by MRR among everyone on Upwork with the skill.

  1. 1Algorand6 freelancers · 🇺🇸 #1Top 17%
  2. #44Capital Markets111 freelancers · 🇺🇸 #19Top 40%
  3. #49FinTech Consulting149 freelancers · 🇺🇸 #15Top 33%
  4. #61Serverless Stack227 freelancers · 🇺🇸 #4Top 27%
  5. #93Requirements Specification246 freelancers · 🇺🇸 #19Top 38%
  6. #112Smart Contract554 freelancers · 🇺🇸 #10Top 20%
  7. #355FinTech802 freelancers · 🇺🇸 #32Top 44%
  8. #415Cloud Computing1,432 freelancers · 🇺🇸 #60Top 29%