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Marius F.
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Marius F.

Senior AI Engineer | Custom AI Software & Automation

I design and build AI software that helps teams work with complex documents, automate demanding tasks, and put their data to better use. I take responsibility for the full system, from initial requirements through testing and deployment. Recent projects include a $15,000 clinical AI system and a $5,900 clinical assessment and patient-reporting module, both completed with 5-star client feedback. “Marius is the best developer we've had in years.” -- Client feedback, OrthoPilot project I bring 15+ years of software engineering experience across healthcare, biotech, financial systems, and security-sensitive environments. That experience matters when your project involves difficult requirements, sensitive information, or decisions that need supporting evidence. I can help you build: • AI assistants that search your documents and business information, with answers linked to supporting sources. • Systems that extract and organize information from PDFs, reports, and records for review, analysis, or use in your software. • AI agents that carry out multi-step tasks, follow your business rules, and involve a person when review is needed. • Predictive models and custom AI features integrated into your existing products and workflows. Healthcare and biomedical AI are particular areas of experience. My work combines document search with structured relationships between facts and their sources. I pay close attention to missing information, conflicting evidence, and preserving the context needed to interpret an answer. My approach is practical: understand the problem, agree on what success looks like, and test the difficult assumptions early. I choose the tools around those requirements and work in milestones you can review as development progresses. You can expect clear progress updates, direct explanations of technical choices, and early notice when something affects scope, cost, or delivery. I care about edge cases and about leaving you with software that another developer can understand and maintain. Send me a short description of what you’re building, what you already have, and your expected budget and timeline. I’ll tell you where I can help and what we would need to get started.

🇷🇴Cluj-Napoca, Romania$70/hr100% JSS5.00 (10)Since Jul 2023

Earnings and projects

MRR
$2k

Last 6 months ÷ 6

World#23,207 / 412k
🇷🇴Country#131 / 2,286
Revenue, last 30 days
$0

Last 6 months: $12k

Total earnings
$24k

Billed in all: $24k

World#126,549 / 412k
🇷🇴Country#812 / 2,286
Per project
$2.2k

$5.9k in the last 6 months

World#71,985 / 412k
🇷🇴Country#407 / 2,286
Projects, last 6 months
2
100% fixed0% hourly
World#88,921 / 412k
🇷🇴Country#379 / 2,286
Projects in all
11
91% fixed9% hourly
World#192,419 / 412k
🇷🇴Country#1,234 / 2,286

Earnings, last 30 days

$24.2kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$23,750$24,000$24,250$24,500Oct 8Oct 23Nov 7

Skill rankings: Top 4% in Biostatistics

Ranked by MRR among everyone on Upwork with the skill.

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  6. #57Statistics1,254 freelancers · 🇷🇴 #2Top 5%
  7. #57Healthcare Software394 freelancers · 🇷🇴 #1Top 14%
  8. #90R1,693 freelancers · 🇷🇴 #1Top 5%