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Daniel L.
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Daniel L.

Machine Learning | Backend Development | Python | SQL

🚀 About Me I’m Daniel Lizarazo, AI & Backend Engineer with hands-on experience building, deploying, and maintaining production-grade intelligent systems. My work focuses on transforming machine learning models into reliable, scalable, and efficient solutions that operate in real-world environments. I specialize in end-to-end AI system development, combining applied machine learning, backend engineering, and cloud infrastructure to support complex, AI-driven workflows. 💡 What I Do • Design and develop scalable APIs and backend services for data- and AI-intensive systems • Integrate machine learning and LLM-based components into production pipelines • Build modular execution engines with hierarchical dependencies and parallel execution • Develop and deploy MVPs, including preprocessing, feature extraction, and ML-based analysis • Optimize system performance across CPU, memory, latency, and AI token usage • Deploy, maintain, and operate cloud-based environments, including GCP • Ensure long-term maintainability, reliability, and performance of production codebases 🧠 Domain Experience • Applied machine learning in production environments • AI systems supporting complex decision-making pipelines • EEG and biomedical signal analysis for neuroscience-related applications • Backend architectures designed for scalability and continuous iteration 🌍 Languages Spanish — Native English — B2 (Intermediate–Advanced) 📞 How I Can Help • End-to-end AI system development • Backend architecture and optimization for ML-driven products • Cloud deployment and infrastructure maintenance • EEG signal analysis and neuroscience-focused AI solutions

🇨🇴Pereira, Colombia$30/hr100% JSS5.00 (9)Since Oct 2024

Earnings and projects

MRR
$1.4k

Last 6 months ÷ 6

World#35,342 / 412k
🇨🇴Country#480 / 4,578
Revenue, last 30 days
$0

Last 6 months: $8.2k

Total earnings
$49k

Billed in all: $49k

World#77,987 / 412k
🇨🇴Country#657 / 4,578
Per project
$4.4k

$2.7k in the last 6 months

World#39,223 / 412k
🇨🇴Country#472 / 4,578
Projects, last 6 months
3
100% fixed0% hourly
World#66,479 / 412k
🇨🇴Country#521 / 4,578
Projects in all
11
64% fixed36% hourly
World#192,417 / 412k
🇨🇴Country#1,127 / 4,578

Earnings, last 30 days

$48.8kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$48.0k$48.5k$49.0k$49.5kOct 8Oct 23Nov 7

Skill rankings: Top 6% in NumPy

Ranked by MRR among everyone on Upwork with the skill.

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  8. #802API7,943 freelancers · 🇨🇴 #2Top 10%