Freelancers using SQL in Dhaka DivisionFreelancers using SQL in Dhaka Division
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Istiak Ahmed Khan's avatar
Istiak Ahmed Khan
Dhaka, Bangladesh
Power BI Data Analyst + ML AI Automation Expert
5.0
Rating
108
Followers
Power BI Data Analyst + ML AI Automation Expert
Cover image for Optimize Logistics: Real-Time Analytics Dashboard Solution
Managing logistics operations without clear insights can lead to delays, inefficiencies, and lost revenue. This dashboard is built to give you complete visibility into your transportation performance — all in one place. A powerful analytics solution that helps you track bookings, delivery performance, delays, and operational efficiency in real time. Designed for clarity and speed, so you can make decisions without digging through raw data. 🔹Monitor on-time vs delayed deliveries instantly 🔹Track booking trends and operational workload over time 🔹Analyze trip efficiency with lead time and distance metrics 🔹Identify peak hours and demand patterns 🔹Evaluate top drivers and most frequent routes/destinations 🔹Compare weekday vs weekend performance If you want a clean, professional dashboard that turns your logistics data into real operational insights, I can build a custom solution tailored to your business needs.
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7
256
Cover image for 3D Molecular Intelligence: Accelerating Drug
3D Molecular Intelligence: Accelerating Drug Discovery through Predictive Analytics The Impact: This project addresses a critical bottleneck in pharmaceutical research: determining molecular solubility (logS). By replacing slow, expensive lab tests with high-precision machine learning, this system enables scientists to screen thousands of compounds in seconds, significantly reducing the cost and time required to bring new life-saving drugs to market. Drastic Cost Reduction: The predictive pipeline reduces early-stage experimental screening costs by 70–90%, allowing research teams to focus resources on the most promising drug candidates. High-Precision Forecasting: Utilizing a hybrid 3D feature engineering approach, the system achieves a remarkable 91.3% accuracy (R² score) in predicting solubility, providing a highly reliable alternative to physical testing. Accelerated R&D Cycles: By automating the identification of viable molecules, the tool dramatically shortens the "hit-to-lead" time in pharma and materials science, getting products to market faster. Empowering Researchers: I deployed a professional Streamlit dashboard featuring an interactive 3D molecular viewer. This allows non-technical chemists to visualize complex structures and make data-driven decisions without needing to write a single line of code
3
294
Cover image for Master Data Modeling in Power BI: Essential Tips & Best Prac...
Data modeling in Microsoft Power BI is the foundation of accurate and high-performance dashboards. 1. Use Star Schema Fact table → numeric data (Sales, Revenue) Dimension tables → descriptive data (Customer, Product, Date) Keep fact in center, dimensions around it 2. Relationships (When to Use What) One-to-Many (1:*) → Best practice (Dimension → Fact) Many-to-One (*:1) → Same as above, reversed view One-to-One (1:1) → Rare, use only if necessary Many-to-Many (:) → Avoid; use bridge table instead 3. Filter Direction Single direction → Recommended (Dimension → Fact) Bi-directional → Use only for complex cases 4. Data Preparation Clean data in Power Query Remove duplicates, fix types, handle nulls 5. DAX Measures Use measures (SUM, CALCULATE) over columns 6. Best Practices Use a proper Date table Keep dimension values unique
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434
Cover image for eBay Sales Analysis Dashboard in
eBay Sales Analysis Dashboard in Microsoft Excel : E-commerce platforms generate large volumes of transactional data, making it difficult to track performance across products, sellers, and regions. Without a centralized dashboard, identifying top-performing categories, understanding customer behavior, and monitoring sales trends becomes challenging. Key Metrics Total Revenue: $24.28M Total Units Sold: 50,338 Average Rating: 4.04 These KPIs provide a quick snapshot of overall business performance and customer satisfaction. Business Impact: Identifies top-performing products and categories Enhances seller performance evaluation Improves market targeting and regional strategy Supports data-driven pricing and inventory decisions Tracks customer satisfaction for quality improvement
7
7
680
SQL(11)
Subrin Al Azad's avatar
Subrin Al Azad
Dhaka, Bangladesh
Global Product Sourcing, Conversion Optimization, BI Report
5.0
Rating
Global Product Sourcing, Conversion Optimization, BI Report
Cover image for Conversion Rate Optimization
Conversion Rate Optimization
0
12
Cover image for BigQuery Data Management
BigQuery Data Management
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9
Cover image for Web Performance Analysis in Looker Studio
Web Performance Analysis in Looker Studio
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29
Cover image for Looker Studio Dashboard
Looker Studio Dashboard
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28
SQL(4)
Nazmul Islam Rakin's avatar
Nazmul Islam Rakin
Dhaka, Bangladesh
Data analyst | Python | SQL | Tableau | Excel | Power BI
Data analyst | Python | SQL | Tableau | Excel | Power BI
Cover image for Amazon Accessories Data Analysis
Amazon Accessories Data Analysis
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22
Cover image for 365datascience Onboarding Report
365datascience Onboarding Report
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40
Cover image for Customer Engagement Analysis Report for 365datascience Platform
Customer Engagement Analysis Report for 365datascience Platform
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22
Cover image for Pizza sales analysis
Pizza sales analysis
0
23
SQL(5)
Abdur Rahim's avatar
Abdur Rahim
Dhaka, Bangladesh
I build websites that bring more customers to businesses
New to Contra
I build websites that bring more customers to businesses
Cover image for Discover FlexCare: Revolutionizing Clinic Website Experience
I’m building FlexCare — a modern clinic website focused on better bookings and smoother patient experience. To make things more transparent, I’ve deployed a live frontend prototype (~40% complete). So far: • Landing page mockup • About, Services, Blog & Team pages (UI ready) • Core UI/UX structure • Early booking flow concept This helps visualize the final product before full development. Still a lot to build, but sharing early to improve faster 🚀 👉 Live preview available in the comments — would love your feedback. 👉 If you're building a clinic website, happy to share insights.
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130
Cover image for 🚀 Just launched: Dr. James’
🚀 Just launched: Dr. James’ new personal website 🩺 Modern design. Professional presence. Built to build trust. Designed & developed by Nocsha Studio. #WebDesign #WebDevelopment #DoctorWebsite
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86
Cover image for Modern Dental Clinic Website Homepage
Modern Dental Clinic Website Homepage This project showcases a modern homepage concept created for a dental clinic. The design focuses on creating trust, improving the patient experience, and increasing appointment conversions through thoughtful UI and UX. Key Features: Modern and clean interface Conversion-focused layout Responsive across all devices Patient testimonials Doctor profile section Service highlights Clear appointment booking CTA Performance-oriented design My goal was to create a website that not only looks professional but also helps dental practices grow their business. Designed and developed by Nocsha Studio.
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112
Cover image for Excited to launch Fitora Fitness
Excited to launch Fitora Fitness 🚀 A modern website concept designed for fitness coaches, personal trainers, gyms, and wellness brands. The goal was simple: ✅ Build trust quickly ✅ Showcase services clearly ✅ Make it easy for clients to get started ✅ Create a professional online presence that converts visitors into leads Strong fitness brands deserve websites that work as hard as they do. Design & Concept by Nocsha Studio. What do you think of the design?
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109
SQL(1)
Nadir Ul Kaysar's avatar
Nadir Ul Kaysar
Dhaka, Bangladesh
Custom AI & SEO-GEO Systems Engineer | B2B & E-Com
Custom AI & SEO-GEO Systems Engineer | B2B & E-Com
Cover image for Generic AI builders like Bolt, Lovable, or Anti-Gravity are ...
Generic AI builders like Bolt, Lovable, or Anti-Gravity are impressive for demos, but they choke on real-world complexity. The Challenge: Build a fully automated, AI-powered Business Directory & Listing platform capable of rivaling giants like Thumbtack. The Result: In just under 6 months, I and my team engineered CT Home Proz is the 2nd true pioneer of AI-powered contractor marketplaces after Thumbtack. Why this breaks the mold: a) 100% Automated: The system connects Homeowners to Contractors without manual intervention. b) Complex Logic, Simple UI: While the backend handles thousands of logic gates which AI auto-coders fail to process, the frontend is effortless for users. If you want a landing page, use an AI builder. If you want a Scalable Platform with complex business logic that actually works, you need an Engineer. 🏗️
0
390
Cover image for 🛑 STOP SCROLLING! If your
🛑 STOP SCROLLING! If your brand visuals still look like they were trapped in the past, we need to talk. They literally told me this aesthetic was played out. They said nobody wanted that high-voltage, raw energy anymore. So I went ahead and built THIS anyway. ⚡️ Look at that absolute INSANITY of a Before vs. After transformation. We took a static, flat concept and infused it with pure visual lightning. It’s not just a design change; it’s an entire vibe shift that commands your eyes to stay on the screen. The secret sauce? Blending nostalgic analog textures with futuristic digital motion to create an undeniable psychological hook. 🚀 Want your next project to pop off the screen and hijack attention exactly like this? Let's build something unforgettable. Hit the 'Message' button or check out my services to secure one of my remaining creative slots for this month!
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153
Cover image for I created a 4k box
I created a 4k box office and blockbuster level realistic action movie trailer in 2 hours using AI. Many people White Lies, such as created by using one prompt or in a minute but I did end to end myself to make this trailer below. It took 2 hours including rendering and AI. How did you like the movie trailer? #aidesignflow #whennotai
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313
Cover image for I usually craft traditional action
I usually craft traditional action trailers, but I challenged myself to build a cinematic, high-octane YouTube Shorts trailer (9:16) using advanced AI generation, dynamic editing, and sound design. Do you preferer editing and generating movie's official trailer or the Full AI Action Movie 🍿 (https://higgsfield.ai/contests/make-your-action-scene/submissions/40f65184-dd97-4846-b560-4f763324bc14?utm_source=contest_submission_page_copy_link&utm_medium=share&utm_content=contest_submission)? (P.S. I’m currently taking on new projects! If you need cutting-edge AI filmmaking, official movie trailer editing, 3D animation, or video editing, let's collaborate.)
0
347
SQL(1)
Maruffuzzman Tanvir's avatar
Maruffuzzman Tanvir
Gopalganj, Bangladesh
Data Analyst, Open to Junior & Freelance Roles
New to Contra
Data Analyst, Open to Junior & Freelance Roles
Cover image for F1 Data Analysis: Vettel vs
F1 Data Analysis: Vettel vs Verstappen — SQL & Power BI A SQL + Power BI comparison of Sebastian Vettel's (2010–2013) and Max Verstappen's (2021–2024) four-title runs at Red Bull Racing — same team, different eras, very different paths to the top. Built on the Ergast F1 database: 14 SQL queries across 5 categories (dominance, race execution, consistency, teammate benchmarking), visualized in a 5-page Power BI dashboard. Key finding: Vettel converted a higher share of available points on average (69.05% vs Verstappen's 63.28%), despite winning fewer races overall. Tech Stack SQL Server · DBeaver · Power BI · Excel Full project: github.com/MZT49/four-time-champions-vettel-vs-verstappen
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Cover image for Olist-ecommerce-analysis
Olist-ecommerce-analysis
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4
Cover image for F1 Championship Metric Comparison: Vettel vs Verstappen
F1 Championship Metric Comparison: Vettel vs Verstappen
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4
Cover image for HR-Attrition-Analysis
HR-Attrition-Analysis
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3
SQL(2)
Navid Al Azim's avatar
Navid Al Azim
Dhaka, Bangladesh
Web Development, Data Analytics and Digital Marketing
Web Development, Data Analytics and Digital Marketing
Cover image for Healthcare Data Management and Dashboarding
Healthcare Data Management and Dashboarding
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16
Cover image for Discord Bot
Discord Bot
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13
Cover image for Craftimation
Craftimation
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22
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SQL(1)