Dev Mistri
Data Analyst · Birmingham, UK
- Phone07887 180583
- Email2424033@student.uwtsd.ac.uk
- Portfoliodevmistri.co.uk
- LinkedInlinkedin.com/in/dev-mistri-
- GitHubgithub.com/D3vxc
Profile
Data analyst with an MSc in Data and Artificial Intelligence from the University of Wales Trinity Saint David, Birmingham, and two years of professional software development spent cleaning, validating and querying production data. Skilled in Python, SQL, Power BI and Tableau, with six published analyses of real business problems: customer churn, A/B testing, delivery performance, customer segmentation, model evaluation and time series. Clear communicator who turns analysis into recommendations for non-technical colleagues.
Skills
- Analysis
- Python (pandas, NumPy, SciPy), SQL (joins, CTEs, window functions), statistics, hypothesis testing, A/B testing, exploratory data analysis
- Visualisation
- Power BI, Tableau, matplotlib, interactive web charts
- Machine learning
- scikit-learn, logistic regression, random forests, model evaluation, anomaly detection
- Data and engineering
- Data cleaning and validation, MongoDB, Node.js, Express.js, REST APIs, Git and GitHub, Postman
- Professional
- Report writing, stakeholder communication, confidential record-keeping, remote and independent working
Experience
Office Administrator
Dec 2025 – Apr 2026Cornerstone Professional Care, UK
- Set up and maintained employee files and onboarding paperwork for new starters.
- Prepared and organised client care plans, keeping confidential records accurate and current.
- Handled inbound calls and emails, routing queries to the right colleague.
Web Developer
Dec 2023 – Dec 2024Impeto Technologies
- Designed backend processes to clean, validate and transform structured client data behind reporting and business applications.
- Optimised SQL queries and data workflows so data reached front-end systems faster and more reliably.
- Traced data-flow issues between front end and back end to find and fix performance bottlenecks.
- Delivered multiple client projects to deadline, balancing data accuracy, code quality and usability.
Junior Full-Stack Developer
Dec 2022 – Nov 2023Unada Labs Pvt Ltd
- Queried, updated and optimised MongoDB databases behind live web applications used by real customers.
- Built and maintained RESTful APIs for structured data exchange between services.
- Debugged and refactored backend logic to improve data retrieval speed and responsiveness.
Selected analyses
Full write-ups, charts and code: devmistri.co.uk
- Telecom customer churnLogistic regression ranks 7,043 customers by risk; the riskiest 20% contains 49.9% of those who left.
- Mobile game A/B testShowed a later paywall gate cut 7-day retention by 0.82 points (p = 0.002) and flagged a sample ratio mismatch.
- E-commerce late deliveriesSQL across 99,441 orders: late orders are 6.8% of deliveries but 36.7% of one-star reviews.
- UK online retail customersRFM segmentation and cohorts on 541,909 transactions; 14% of customers drive 45% of revenue.
- Network intrusion dataShowed 99.88% cross-validation accuracy falls to 76.5% when attacks are new.
- UK house prices since 1953Validated 72 years of data and measured three downturns and their recovery times.
Education
MSc Data and Artificial Intelligence
2025 – 2026University of Wales Trinity Saint David, Birmingham
- Modules: Machine Learning, Artificial Intelligence, Advanced Statistical Programming, Data Mining and Visualisation, Data Security Governance and Compliance.
- Dissertation: an AI-powered hybrid intrusion detection system combining anomaly detection with supervised learning.
Bachelor of Computer Engineering
2021 – 2024Silver Oak University, Ahmedabad
Languages
English, Hindi, Gujarati. References available on request.