marcellino
Quality Assurance & Data Analyst Specialist
Quality Assurance and Data Analyst Specialist with 3+ years of combined experience in manufacturing and technology-driven environments. Proficient in Python, SQL, Power BI, and automation frameworks, delivering solutions that enhance product quality, optimize processes, and reduce costs. Demonstrated achievements include predictive maintenance models that increased production uptime by 15%, QA automation scripts saving 10+ hours weekly, and real-time dashboards reducing reporting time by 50%. Certified in Lean Six Sigma Green Belt and Azure AI Fundamentals, I bring a unique capability to bridge QA automation with data and AI for scalable and efficient business solutions.
Experience: 5 years
Yearly salary: $16,000
Hourly rate: $10
Nationality: 🇮🇩 Indonesia
Residency: 🇮🇩 Indonesia
Experience
Freelance Data Analyst
Indonesia 2022 - 2023
Analyzed sales data for 10+ SMEs (retail and F&B), enabling 20% revenue growth through data-driven insights. Created SQL-based solutions to optimize inventory management, reducing discrepancies by 15%. Delivered interactive dashboards in Power BI to visualize sales and marketing performance.
Customer Data Analyst & Consultant
Indonesia 2021 - 2021
Performed consumer segmentation using CRM platforms, enhancing engagement strategies by 25%. Resolved 90% of customer complaints within 24 hours using data-driven approaches. Provided data-backed consultation that increased enrollment conversions by 15%.
Quality Assurance Intern
Indonesia 2020 - 2020
Conducted production quality analysis, identifying 5 critical risks that improved reliability. Developed Excel-based quality tracking reports, streamlining compliance documentation.
Capital Market Dataset Study (IDX Stock Research)
Indonesia 2019 - 2024
Developed a machine learning trading bot with predictive modeling & backtesting → accuracy ↑ 18%, drawdown ↓ 15%. Built Python-based portfolio tracker with API integration, serving 1k+ daily queries. Applied quantitative finance methods (Sharpe ratio, volatility modeling) to assess portfolio risks.
Skills
blockchain
compliance
computer-science
crypto
engineer
machine-learning
python
trader
analyst
english