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🔹 Excel & Data Support Specialist | Reporting & Data Cleaning Hello! I help businesses organize, clean, and structure their data in Excel and Google Sheets to make reporting easier, faster, and more reliable. I specialize in working with messy datasets, fixing errors, and building clear reporting systems. ✅ What I can help you with: * Excel data cleaning and structuring (fixing errors, duplicates, formatting issues) * Building reports using Excel (formulas, pivot tables, Power Query) * Data organization and transformation in Google Sheets / Excel * Simple data analysis and reporting (KPIs, summaries, comparisons) * Web research and data collection when needed 💼 Experience: * Working with large Excel datasets and improving data quality * Building structured reports for analysis and decision-making * Using formulas, pivot tables, and Power Query for automation * Supporting data-related tasks and reporting workflows 💡 Why work with me: I focus on accuracy, structure, and making your data easy to use. My goal is to reduce manual work and help you get clear, reliable reports from messy data. I am reliable, detail-oriented, and able to work independently.

I am a dedicated Data Engineer with a strong foundation in data analytics, specializing in building production-grade data infrastructure, distributed database systems, scalable ETL pipelines, and AI-powered data applications. With 7 years of experience, I help companies: • Transform messy data into automated, reliable, and scalable ETL pipelines for complex financial data that save 100+ hours monthly • Architect distributed database systems: Design multi-tier data architectures for massive-scale record management • Build advanced ETL pipelines with intelligent change detection to process only what's changed, reducing unnecessary processing • Architect cloud-native data solutions and scale data infrastructure across multiple clouds • Automate data workflows to eliminate manual processing and escape Excel Hell • Build Information Retrieval (IR), semantic search, OpenSearch, and Retrieval-Augmented Generation (RAG) systems that make massive datasets, documents, and knowledge bases searchable and actionable • Develop AI-powered data applications, including document intelligence, chatbot, and agent-based solutions integrated with existing business workflows • Modernize legacy data systems with cloud & AI solutions • Optimize data infrastructure to reduce costs and improve performance • Design parallel execution frameworks: Implement isolation patterns enabling concurrent pipeline runs without conflicts • Build data foundations for AI initiatives, including vector search, knowledge retrieval, document processing, and AI automation workflows I have been providing a wide range of services in the realm of data analytics and data engineering such as: • ETL/ELT pipeline orchestration: Prefect, Databricks Workflows & Asset Bundles • Lakehouse & distributed database architecture: Databricks/Delta, YugabyteDB (distributed PostgreSQL), Neo4j, OpenSearch • Custom dbt materializations and incremental models: SCD-2, temporal tables • Database optimization and storage compression • Data validation, quality quarantine & reconciliation frameworks • Per-run schema isolation and parallel pipeline execution • Google Sheets automation and dashboard generation • Excel-to-database migration and formula translation • Multi-source data integration: CSV, Parquet, S3, APIs, databases • Data Cleaning & Transformation at scale • Operational Efficiency Analysis • Financial metrics calculation systems • Multi-cloud architecture design • Infrastructure as Code • Cloud services integration: AWS, GCP, Azure • RAG & LLM data applications: grounded citations, document extraction, NL-to-SQL semantic layers • Automated reporting solutions (Python-Excel integration) • Data Visualization & Dashboarding While the above services encapsulate my core offerings, I am inherently adaptable and thrive on diving into new challenges and expanding my skill set. Seeking great, enthusiastic projects that will provide me with challenging, interesting work that I can learn from and contribute to. My stack: Data Engineering: ✅ Python ✅ SQL (PostgreSQL, MySQL, SQL Server, YugabyteDB, DuckDB) ✅ Prefect ✅ dbt ✅ PySpark ✅ Delta Lake ✅ Databricks Cloud & Infrastructure: ✅ AWS (EC2, S3, Glue, RDS, Lambda, EKS, DynamoDB, ECR, Bedrock) ✅ Google Cloud Platform (BigQuery, GKE, Bigtable, Cloud Functions) ✅ Azure (ADF, Synapse, AKS, Cosmos DB, Azure Functions, ACR, Text Analytics) ✅ Terraform ✅ Docker ✅ Kubernetes ✅ Prometheus Data Storages: ✅ RDBMS (PostgreSQL, MySQL, SQL Server, DuckDB) ✅ Object Storage (S3, Wasabi) ✅ Graph Database (Neo4j) ✅ Key-Value Database (Redis, DynamoDB) ✅ Document Database + Search Engine (OpenSearch) ETL & Data Processing: ✅ Pandas ✅ NumPy ✅ Selenium ✅ BeautifulSoup Spreadsheet Automation: ✅ Google Sheets API (gspread) ✅ Excel automation (openpyxl, xlwings) ✅ Automated dashboard generation Data Visualization: ✅ Matplotlib ✅ Seaborn ✅ Plotly ✅ Power BI ✅ Grafana Backend Development: ✅ FastAPI ✅ Flask ✅ RESTful APIs ✅ GraphQL ✅ Redis ✅ Nginx ✅ Gunicorn ✅ WebSocket AI/LLM & Agent Systems: ✅ OpenAI API ✅ Anthropic API ✅ Gemini API ✅ AWS Bedrock ✅ Agent Development ✅ AI Chatbots ✅ RAG ✅ NL-to-SQL semantic layers ✅ Semantic search

𝐈'𝐦 𝐚 𝐅𝐫𝐨𝐧𝐭-𝐄𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐰𝐡𝐨 𝐬𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞𝐬 𝐢𝐧 𝐜𝐫𝐞𝐚𝐭𝐢𝐧𝐠 𝐜𝐥𝐞𝐚𝐧, 𝐫𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐯𝐞, 𝐚𝐧𝐝 𝐩𝐢𝐱𝐞𝐥-𝐩𝐞𝐫𝐟𝐞𝐜𝐭 𝐥𝐚𝐧𝐝𝐢𝐧𝐠 𝐩𝐚𝐠𝐞𝐬. Tech Stack: 📍 Coding: - HTML5 - JavaScript (burger menus, modals, sliders, etc.) - TypeScript - React - React Router 📍 Styling: - CSS3 - SCSS - TailwindCSS - shadcn/ui

Are you ready to connect with top-tier talent to elevate your business to new heights? As a top 3% talent on Upwork with 50+ happy clients worldwide, I specialize in delivering exceptional recruitment and business support services tailored to your needs. What I Offer: ✔️ Talent Acquisition: Sourcing, recruiting, and hiring top-notch candidates for IT and non-IT roles. Building strong pipelines for your growing business. ✔️ Business Expansion Support: Identifying potential partners to foster business growth in Kazakhstan and CIS countries. Translating documents (English, Russian, Kazakh). ✔️ Workflow Optimization: Streamlining administrative tasks to boost efficiency and save time. Benefits of Working With Me: ✅ Save time and reduce recruitment headaches. ✅ Cut down on agency fees. ✅ Enjoy seamless communication and timely project delivery. Client Testimonials: 🌟 "It was a pleasure to work with Madina who completed the research project successfully. We would be keen to collaborate again." 🌟 "High-quality work, timely delivery, and a pleasure to work with." 🌟 "Excellent communication and cooperation. She’s so patient and friendly. Recommended!" 🌟 "Super achiever. A pleasure to work with." Roles I’ve Successfully Filled: IT: Senior Java Developer, PHP Developer, Data Analyst, Cybersecurity Manager. Non-IT: Customer Success Team Leader, Accountant, Virtual Assistant, Business Development Specialist, and more. Why Choose Me? Fluent in English, Russian, and Kazakh. University of Illinois at Urbana-Champaign graduate. Proven expertise in talent acquisition and remote work. Available 24/7 to meet your needs. Let’s Get Started: 🟢 Click the green ‘Invite to Job’ button at the top of the page. 💬 Send me a personalized note with your job requirements. Let me help you find the perfect match to drive your business forward!

HI! I’ve built 40+ AI agents and automation systems handling thousands of tasks daily from lead processing to full operational workflows. Most clients come with something that “almost works”. Flows break. Data is messy. No one understands what happens inside. I fix that. I design automation with clear logic, clean data flow, and control at every step. If something fails it retries. If data is wrong — it is blocked. If system grows — it still works. What I usually build: – AI agents for operations and sales – n8n / Make workflows with real error handling – CRM and API integrations – data pipelines and internal toolsWhat I build: – Supabase and PostgreSQL backends with clear schema – Internal tools with lovable and supabase – Data pipelines from scraping to AI to CRM I use AI to move faster. But I always check logic and edge cases manually. Experience: 40+ AI agents and automation systems RAG systems with vector search and clean outputs CRM and sales automation pipelines internal tools with supabase and APIs systems built for real load If your automation is messy I can rebuild it. If you start from zero I can design it right. 🔧 Stack: n8n | make | supabase | postgresql | lovable | openai | rag | apis | webhooks | crm systems | data pipelines | ai agents

Data Analyst | Data Visualization Hello, I am Nazerke, a passionate and data-driven analyst with a strong desire to uncover insights from complex datasets. I've been working in data research since 2016, dedicating the last 8 years to uncovering insights and transforming raw data into compelling narratives that drive decision-making. With a background in Computer Science, I am eager to contribute my skills and expertise to solve real-world challenges through data-driven solutions. As a lifelong learner, I am dedicated to staying updated with the latest advancements in data entry, analysis, and management and I am excited to showcase my journey through this portfolio. From data wrangling to data visualization, I have immersed myself in various aspects of the field to develop a versatile skill set. I am holding a PhD from Nazarbayev University. My expertise lies in data management principles, including data entry, cleaning, transformation, and integration, and have successfully contributed to the development of data-driven solutions that have had a positive impact on business operations and profitability. My analytical skills are complemented by a keen eye for detail and a commitment to accuracy, ensuring that the information I provide is both reliable and actionable. My experience in data analytics, machine learning, and data visualization, is complemented by a strong academic foundation and practical industry experience. ------- Tools & Frameworks ------- Microsoft – Excel VBA, Macros, AddIns, SQL, PowerPoint, Word Power BI – DAX, ETL, Power Query Python – Machine Learning, Altair, Matplotlib Google - Google Sheets, Google Presentation, Google Analytics Other - Tableau, Looker Studio, Prezi, Canva, PhotoShop, CorelDraw