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Alex M.
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Alex M.

Fractional CTO | Software Architecture |Code Audit| Data Analysis & AI

🚀 𝐂𝐄𝐎 / 𝐂𝐓𝐎 / 𝐅𝐨𝐮𝐧𝐝𝐞𝐫 𝐰𝐢𝐭𝐡 𝟐𝟓+ 𝐲𝐞𝐚𝐫𝐬 𝐢𝐧 𝐭𝐞𝐜𝐡 | 💰 𝐎𝐯𝐞𝐫 $𝟏𝟎𝐌 𝐢𝐧 𝐟𝐢𝐧𝐚𝐧𝐜𝐢𝐚𝐥 𝐝𝐢𝐬𝐜𝐫𝐞𝐩𝐚𝐧𝐜𝐢𝐞𝐬 𝐟𝐨𝐮𝐧𝐝 | ⚡ 𝟑𝐱 𝐟𝐚𝐬𝐭𝐞𝐫 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐲 | 📉 𝟗𝟎% 𝐟𝐞𝐰𝐞𝐫 𝐫𝐞𝐥𝐞𝐚𝐬𝐞 𝐢𝐧𝐜𝐢𝐝𝐞𝐧𝐭𝐬 💬 𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐦𝐞 “𝐒𝐓𝐀𝐑𝐓” 𝐚𝐧𝐝 𝐠𝐞𝐭 𝐚 𝐅𝐑𝐄𝐄 𝟑𝟎-𝐦𝐢𝐧𝐮𝐭𝐞 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐬𝐭𝐫𝐚𝐭𝐞𝐠𝐲 𝐜𝐚𝐥𝐥 - I’ll help you clarify the problem, identify the fastest realistic solution, and map out how to validate, build, launch, automate, or scale your product. 𝐈 𝐛𝐫𝐢𝐧𝐠 𝐜𝐨𝐦𝐩𝐥𝐞𝐱 𝐢𝐝𝐞𝐚𝐬 𝐭𝐨 𝐥𝐢𝐟𝐞 𝐰𝐡𝐞𝐫𝐞 𝐨𝐭𝐡𝐞𝐫 𝐭𝐞𝐚𝐦𝐬 𝐡𝐢𝐭 𝐚 𝐰𝐚𝐥𝐥. My experience as a CEO, CTO, Fractional CTO, Founder, Lead Architect, Tech Lead, Team Lead, and Lead Data Analyst allows me to see the whole product - not only the code. I work across technical strategy, Software Architecture, Code Review, Data Analysis, product delivery, and complex system design. In one real case, a single four-hour Fractional CTO consultation helped a founder avoid approximately 𝐚 $𝟏𝐌 𝐦𝐢𝐬𝐭𝐚𝐤𝐞 before committing resources to the wrong solution. I work best with ambitious founders and companies that need a Fractional CTO, Software Architecture review, Code Review, Data Analysis, or hands-on technical leadership for 𝐀𝐈 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬, 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬, 𝐌𝐕𝐏𝐬, 𝐅𝐢𝐧𝐓𝐞𝐜𝐡, 𝐄𝐝𝐓𝐞𝐜𝐡, and complex data-heavy systems. 🔹 𝐅𝐫𝐚𝐜𝐭𝐢𝐨𝐧𝐚𝐥 𝐂𝐓𝐎, 𝐂𝐨𝐝𝐞 𝐑𝐞𝐯𝐢𝐞𝐰 & 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 I help founders and engineering teams with Fractional CTO support, Code Review, Software Architecture, Architecture Audit, technical debt, scalability, production readiness, system rescue, and technical due diligence. I can step into inherited SaaS products, unstable systems, broken MVPs, or failed development projects, identify the real risks, and define a practical path forward. 🔹 𝐃𝐚𝐭𝐚 𝐀𝐧𝐚𝐥𝐲𝐬𝐢𝐬 & 𝐃𝐚𝐭𝐚 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 I solve complex Data Analysis and Data Engineering problems involving financial reconciliation, transactions, large datasets, Excel/PDF data, ETL, normalization, reporting, migration, extraction, modeling, graph analytics, and time-series analysis. The goal is to find discrepancies and patterns and turn fragmented data into reliable business insights. 🔹 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 I build and review AI systems for SaaS and internal platforms: assistants, copilots, semantic search, document intelligence, RAG, GraphRAG, LLM workflows, tool calling, local models, and fine-tuning. I also help move AI prototypes toward production by reviewing architecture, scalability, reliability, cost, context, memory, evaluation, and model choice. 🔹 𝐀𝐈 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐀𝐠𝐞𝐧𝐭 𝐖𝐨𝐫𝐤𝐟𝐨𝐰𝐬 I design AI agents, automations, API orchestration, document and CRM workflows, internal tools, and human-in-the-loop systems using n8n, LangGraph, LangChain, CrewAI, MCP, webhooks, queues, and business APIs. 🔹 𝐅𝐮𝐥𝐥𝐬𝐭𝐚𝐜𝐤 𝐒𝐚𝐚𝐒 & 𝐌𝐕𝐏 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 I build SaaS MVPs, dashboards, portals, marketplaces, billing systems, CRM platforms, APIs, scalable backends, and data-intensive applications. My Fractional CTO and Software Architecture background means I approach them with scalability, maintainability, technical debt, product strategy, and long-term engineering risk in mind. 🏆 𝐒𝐞𝐥𝐞𝐜𝐭𝐞𝐝 𝐫𝐞𝐬𝐮𝐥𝐭𝐬: → 𝐏𝐫𝐚𝐜𝐭𝐢𝐜𝐮𝐦 - redesigned the educational content development process, achieving 𝟑𝐱 𝐟𝐚𝐬𝐭𝐞𝐫 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐲, a 𝟒𝟓% 𝐜𝐨𝐬𝐭 𝐫𝐞𝐝𝐮𝐜𝐭𝐢𝐨𝐧, and a 𝟐𝟓% 𝐢𝐦𝐩𝐫𝐨𝐯𝐞𝐦𝐞𝐧𝐭 in the student learning experience. → 𝐏𝐥𝐚𝐲𝐫𝐢𝐱 - reviewed and refactored the game release delivery process and underlying engineering approach, reducing incidents by 𝟗𝟎% within the first two months and replacing three-month release cycles with 𝐰𝐞𝐞𝐤𝐥𝐲 𝐫𝐞𝐥𝐞𝐚𝐬𝐞𝐬. → 𝐍𝐃𝐀 𝐅𝐢𝐧𝐓𝐞𝐜𝐡 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 - performed complex Data Analysis across historical contract and transaction data from 𝟏𝟎𝟎+ 𝐦𝐞𝐫𝐜𝐡𝐚𝐧𝐭𝐬 in two weeks, completed a six-month implementation plan in 𝐣𝐮𝐬𝐭 𝐨𝐧𝐞 𝐦𝐨𝐧𝐭𝐡, and identified more than $𝟏𝟎𝐌 𝐢𝐧 𝐫𝐚𝐭𝐞 𝐝𝐢𝐬𝐜𝐫𝐞𝐩𝐚𝐧𝐜𝐢𝐞𝐬. 🛠 𝐂𝐨𝐫𝐞 𝐭𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: Python, SQL, TypeScript, JavaScript, Node.js, NestJS, FastAPI, React, Next.js, PostgreSQL, MongoDB, Redis, Kafka, Docker, Kubernetes, AWS, GCP, OpenAI, Claude, Gemini, Llama, LangChain, LangGraph, LlamaIndex, Pinecone, Weaviate, Qdrant, and pgvector. 𝐈𝐟 𝐈 𝐭𝐞𝐥𝐥 𝐲𝐨𝐮 𝐭𝐡𝐚𝐭 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐜𝐚𝐧 𝐛𝐞 𝐛𝐮𝐢𝐥𝐭, 𝐜𝐨𝐧𝐬𝐢𝐝𝐞𝐫 𝐢𝐭 𝐝𝐨𝐧𝐞. Send me “𝐒𝐓𝐀𝐑𝐓” if you need a Fractional CTO, Code Review, Software Architecture or Architecture Audit, Data Analysis, or help building, fixing, automating, or scaling a complex product.

🇷🇸Belgrade, Serbia$40/hr100% JSS5.00 (3)Since Aug 2023

Earnings and projects

MRR
$328

Last 6 months ÷ 3.1 months active (since Aug 2026)

World#94,861 / 412k
🇷🇸Country#864 / 4,015
Revenue, last 30 days
$0

Last 6 months: $1k

Total earnings
$1k

Billed in all: $1.1k

World#390,669 / 412k
🇷🇸Country#3,883 / 4,015
Per project
$348

$345 in the last 6 months

World#217,186 / 412k
🇷🇸Country#2,436 / 4,015
Projects, last 6 months
3
33% fixed67% hourly
World#66,481 / 412k
🇷🇸Country#548 / 4,015
Projects in all
3
33% fixed67% hourly
World#304,142 / 412k
🇷🇸Country#3,233 / 4,015

Earnings, last 30 days

$1.1kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1,120$1,140$1,160$1,180Oct 9Oct 24Nov 8

Skill rankings: Top 19% in SQL

Ranked by MRR among everyone on Upwork with the skill.

  1. #50Architecture Consultation218 freelancers · 🇷🇸 #2Top 23%
  2. #56Engineering Management174 freelancers · 🇷🇸 #2Top 32%
  3. #67Code Review218 freelancers · 🇷🇸 #1Top 31%
  4. #262Data Modeling1,203 freelancers · 🇷🇸 #3Top 22%
  5. #298Software Architecture964 freelancers · 🇷🇸 #6Top 31%
  6. #361Software Architecture & Design1,465 freelancers · 🇷🇸 #6Top 25%
  7. #451Data Engineering1,602 freelancers · 🇷🇸 #3Top 28%
  8. #530Technical Project Management1,684 freelancers · 🇷🇸 #6Top 31%