Overall 6 years of experience in IT industry with 4 years of relevant experience in Big Data Engineer, handling and transforming heterogeneous data into Key information using Hadoop ecosystem. - Expertise with the tools in Hadoop Ecosystem – HDFS, Hive , Sqoop, Spark, Kafka, Nifi. - Experience working with Elastic Search, Kibana and good knowledge on Oozie, Hbase, Phonix. - Good understanding of distributed systems, HDFS architecture, internal working details of MapReduce, Yarn and Spark processing frameworks. - More than two year of hands on experience using Spark framework with Scala. - Expertise in Inbound and Outbound (importing/exporting) data form/to traditional RDBMS using ApacheSQOOP. - Extensively worked on HiveQL, join operations, writing custom UDF’s and having good experience in optimizing Hive Queries. - Experience in data processing like collecting, aggregating, moving from various sources using Apache Nifi and Kafka. - Worked with various formats of files like delimited text files , JSON files, XML Files - Having basic knowledge on Amazon Web Services.

UI Technologies AngularJS Framework, Node.js, AJAX, JQuery, Web-Sockets, Socket-IO, D3.js (beginner), Twitter Bootstrap Web Related HTML, XML, XSD, WSDL, UML, HTML5, CSS3, HTML5 Video, socketio.js, angular- webpack. J2EE Technologies J2EE, Servlets ,JSP, EJB , Web-services(REST, SOAP) ,JSF 1.2, J2EE Design Patterns Open Source technologies Apache ActiveMQ, JADE(Java Agent Development), Apache Camel, Kafka, Spring- LDAP, OpenLDAP Languages Core Java , JavaScript, C++ Databases Oracle 9i,Teradata, Postgres, HBase Operating System Windows NT, 9X, 2000, XP ,VISTA, Windows 7, MAC OSX, Ubuntu 10.X + Servers JBoss Server 4./4.2, Apache Tomcat, TomEE, IBM WebSphere, Wildfly Source Code Maintenance and Deployment SVN, Git, Maven, Jenkins, Sonar, HP Fortify Cloud Amazon EC2 services, Azure Media Services. Testing JUnit, Postman, SOAP-UI Tools Used Eclipse 3.2 and above, Toad( For Oracle),SOAP-UI 4.5 and above, Visual Studio Code, Sublime Text, Aqua Data Studio(for Oracle and Teradata), PGAdmin3(Postgres), WinSCP, Putty, Google Chrome JavaScript Developer tools.

Are you looking for a seasoned developer who can handle complex architectural challenges, lead a team from 0 to 1, or optimize high-traffic systems for peak performance? With 12 years of experience in software engineering—ranging from tech giant Meituan to serving as a CTO/Tech Co-founder—I specialize in building robust, scalable, and high-performance distributed systems. I don't just write code; I design solutions that align with your business goals. Why choose me for your next project? Proven Track Record at Scale: I have architected and maintained systems handling millions of daily transactions (Meituan, Dianwoda). Architectural Expertise: Expert in Microservices (Spring Cloud), Domain-Driven Design (DDD), and transitioning legacy monoliths into modern, scalable infrastructures. Cutting-Edge Tech Stack: Proficient in Java, Rust, and Go, with deep expertise in JavaAgent for non-intrusive monitoring and testing environments. Big Data & IoT Savvy: Experienced in building PB-scale data lakes using Spark, Iceberg, and MinIO, as well as real-time IoT monitoring systems for industrial giants. Core Competencies: Backend: Java (Spring Boot/Cloud), Rust, Go, Python. Data & Storage: MySQL (Sharding-JDBC), Redis, HBase, Elasticsearch, Iceberg, MinIO. Middleware: RocketMQ, Kafka, Zookeeper, Nacos. DevOps: Docker, Jenkins, CI/CD Pipeline optimization. Advanced Techniques: Bytecode manipulation (JavaAgent), APM systems, and high-concurrency Feed stream optimization. Notable Projects: PB-Scale Big Data Platform: Built a lakehouse architecture for fusion energy research data using Spark and Iceberg. Social Community Platform: Led the 0-to-1 backend design for a crowdfunding community, supporting its rapid growth from a PHP monolith to a Java microservice ecosystem. Testing Environment Virtualization: Developed a JavaAgent-based tool that enabled multiple parallel testing environments without additional hardware, drastically increasing R&D efficiency. Whether you need a full-scale architectural overhaul, a specialized high-concurrency feature, or a reliable lead for your MVP, I bring "Big Tech" rigor mixed with "Startup" agility to your team. Let’s discuss how I can help you publish your project smoothly and scale your business!

▼ Desktop Applications → Java, JavaFX, Swing → C/C++, QT, Visual C++ → C# → Vb.Net → Python, Tkinter, PyQT → Dart ▼ Mobile Programming → Android → Java → Kotlin → Flutter ▼ Web Programming → Java, JSP, Servlets, EJB, JSF → Asp.Net, MVC, Entity Framework → PHP Core, Laravel → Ajax, Bootstrap → Web Services: Restful, Soap → HTML, XHTML, XML, DTD, XSD, Json ▼ JavaScript → Node → Express → Socket IO → AngularJS → jQuery ▼ Database → MySql → Oracle → MSSQL → HBase → JavaDB → PostgreSQL → MS Access → Cassandra → MongoDB → JPA → Hibernate ▼ Misc → Algorithms → Data Structures → Charting: Plotly, D3, Google Charts, JFreeCharts → UML Diagrams → Files: PDFBox, IText, POI, Excel → Testing: Junit, TestNg, unittest

IBM certified data science professional, curious, and judgmental with sufficient business acumen to understand business objectives and capable of providing data-driven solutions to diverse industries My Skillset: 1. Machine Learning 2. Deep Learning 3. Data Analysis 4. Statistics 5. Data Visualization 6. Computer Vision 7. Microsoft Power BI Expert in: 1. Python [pandas, numpy, matplotlib, seaborn, OpenCV, sklearn, scipy, plotly, shapely, pyplot, RESTful API, geopy, geopandas, folium etc.,] 2. SQL Also worked on: 1. Big Data - Hadoop architecture with HDFS, MapReduce, HIVE, PIG, HBase, Sqoop 2. Languages - C#, Core Java, VB, VBA, R 3. Tools - Jupyter Notebook/JupyterLab, Google Colab, Git, Github, R Studio, IBM Watson Studio Possess 10+ years of solid experience in the IT sector. Previously I was associated with Cognizant Technology Solutions(India) as Project Lead and worked at Meridian resource (a division of Wellpoint/Anthem in Wisconsin) USA as Senior Consultant. Independently handled several projects to completion by leading mid sized team. Excellent team player, independent performer willing to take ownership of task at hand. Good technical knowledge, perfection in the work and timely communication are my traits. An astute learner willing to go extra mile to achieve desired results. Reach out to me and we will discuss! Thank you!

Are you looking for a Scientific Researcher with expertise in machine learning, AI for medical diagnostics, and data-driven decision-making? With a strong background in interpretable AI, formal verification, and predictive modeling, I help businesses and researchers turn complex data into actionable insights. What I Offer: ✅ Machine Learning & AI Development – Specializing in black-box ML interpretability, medical AI, and formal verification ✅ Data Science & Statistical Analysis – Expertise in Python, R, Spark, Keras, and statistical modeling ✅ Scientific & Technical Writing – Research papers, grant proposals, literature reviews, and whitepapers ✅ AI for Medical & Real-World Applications Why Work With Me? 🔹 Interdisciplinary Expertise: Strong foundation in neural networks, Petri nets, and AI decision-making transparency 🔹 Proven Track Record: Published research, collaborated with teams on AI-driven healthcare solutions 🔹 Client-Focused Approach: I ensure clear communication, transparency, and on-time project delivery Let’s discuss how I can help you with data analysis, AI-driven solutions, or research consulting. Feel free to message me today! 📩 𝘽𝙞𝙜 𝘿𝙖𝙩𝙖 & 𝘿𝙖𝙩𝙖 𝙀𝙣𝙜𝙞𝙣𝙚𝙚𝙧𝙞𝙣𝙜 Data Engineer with 5+ 𝘆𝗲𝗮𝗿𝘀 of experience and have been working extensively on building ETL pipelines and developing and maintaining end-to-end big data solutions. Expertise in Apache Spark, Hadoop, Kudu, Hive, Apache Nifi, and more... 𝙀𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚: ✔Scientific Writings, ✔Apache Spark, Hadoop, MapReduce, ✔YARN, Pig, Hive, Kudu, HBase, Impala, Delta Lake, ✔Oozie, NiFi, Kafka, Airflow, Kylin, Druid, Flink, ✔Presto, Drill, Phoenix, Ambari, Ranger, ✔Cloudera Manager, Zookeeper, ✔Spark-Streaming, Streamsets, Snowflake

Senior Backend Engineer with 9+ years of experience designing, modernizing, and operating large-scale backend systems in aerospace, and Trust & Safety domains. Strong background in Java, Node.js and legacy-to-modern platform migrations. Experienced in owning critical services, leading technical modernization efforts, and building reliable, production-grade software

𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗲. 𝗦𝗰𝗮𝗹𝗲. 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗲. I help businesses eliminate bottlenecks and build smart, scalable systems using Python, AI, and automation. With 𝟯+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 in backend development, web scraping, and n8n agentic workflows, I deliver real impact, not just code. Let’s turn your workflows into working software. 🚀 𝗦𝗼𝗹𝘃𝗶𝗻𝗴 𝗥𝗲𝗮𝗹 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗣𝗮𝗶𝗻𝘀 𝘄𝗶𝘁𝗵 𝗔𝗜 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 ⭐ "We need scalable backend APIs—fast." ⭐ "Scraping 10,000+ pages reliably is a must." ⭐ "Our team wastes hours doing what AI could solve." ⭐ "We want LangChain agents and GPT-powered workflows." ⭐ "Our costs are exploding—we need agentic n8n optimization." If that sounds familiar, I can help. 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: 🔧 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Python, Django, Flask, FastAPI, REST API implementation, OpenAPI integration 🔧 𝗔𝗜, 𝗟𝗟𝗠 & 𝗔𝗴𝗲𝗻𝘁𝘀: OpenAI GPT-4o/3.5, LangChain, LangGraph, RAG pipelines, Prompt Engineering, Multi-Agent AI Systems 🔧 𝗪𝗲𝗯 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴: Scrapy, Playwright, Selenium — 100k+ pages, IP rotation, captchas, anti-bot 🔧 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗡𝗼-𝗖𝗼𝗱𝗲: Zapier, n8n, Make, Airtable, Pabbly, Webhooks, CRM Integration 🔧 𝗦𝗲𝗿𝘃𝗲𝗿𝗹𝗲𝘀𝘀 𝗮𝗻𝗱 𝗖𝗹𝗼𝘂𝗱: AWS Lambda, EC2, RDS, DynamoDB (STM), GCP, Terraform 🔧 𝗗𝗲𝘃𝗢𝗽𝘀 & 𝗦𝗘𝗥: Docker, Kubernetes, CI/CD, Airflow, Kafka, Prefect, disaster recovery 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀 & 𝗦𝘁𝗼𝗿𝗮𝗴𝗲: 💾 MySQL, PostgreSQL, Oracle, MongoDB, Redis, Firebase, Supabase 💾 Snowflake, Elasticsearch, Chroma, Weaviate, Pinecone 𝗪𝗵𝗮𝘁 𝗜 𝗱𝗲𝗹𝗶𝘃𝗲𝗿: ✅ LLM-powered tools and chatbot solutions that scale ✅ Backend systems with clean, testable, production-grade code ✅ 40%+ drop in downtime with automation and serverless scaling ✅ 90%+ CI/CD speedup with modern pipelines ✅ Full n8n agentic workflows ✅ Scrapers with 99.9% extraction accuracy for high-volume tasks 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗦𝗽𝗼𝘁𝗹𝗶𝗴𝗵𝘁: ⭐ GPT-Powered Cricket Match Planner (LLM + data pipeline + strategy engine) ⭐ AI PDF Parser for Construction Docs (multi-format, multi-field extraction) ⭐ LangChain Crypto Assistant with live trade prompt agents ⭐ Healthcare Notetaker AI (structured insights from patient visits) ⭐ n8n + LLM Content Engine (50+ marketing tasks fully automated) 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗘𝗱𝗴𝗲: ✔️ Contributor to LangChain community ✔️ Research-backed engineering from LUMS & UIUC ✔️ Built and deployed 20+ production scraping + AI systems ✔️ Outcome-first. No fluff. Just working, scalable tech. Let’s automate your data, build powerful APIs, and ship real value. Ready to take your systems to the next level? Let's talk. #Python #WebScraping #AI #OpenAI #LangChain #LLM #Zapier #n8n #RAG #FastAPI #AWS #DevOps #Automation #Backend #OpenAI #ETL #Django #Prefect #Flask #Make #Playwright #AgenticAI

Senior Data Engineer & Troubleshooting Expert | Rapid Incident Response | Big Data Are you struggling with recurring system errors or slow data processing? I am a Senior Data Engineer who specializes in deep-dive diagnostics and performance tuning. With a career built on 9 years of IT experience—spanning Data Analysis, Application Support, and Senior Engineering—I bridge the gap between complex code and operational excellence. 💡Why clients trust me: Log & Debug Specialist: I find the "needle in the haystack" in system logs to resolve issues before they impact your business. SLA Committed: I thrive in high-pressure environments, ensuring all technical hurdles are cleared within tight timeframes. 🛠 Tech Stack: Advanced SQL, Big Data (Hive/Kudu), and robust ETL processes. I don't just deliver code; I deliver stability and peace of mind. Reach out today to discuss how I can optimize your data infrastructure.

I develop transformative solutions as a Senior Technical Lead and AI Engineering expert with over 22 years of experience in creating enterprise-scale, cloud-native applications. My expertise spans industries like Hospitality, Banking, Healthcare, and Telecom, where I have successfully modernized legacy systems and led high-performing teams. Proficient in Java, Spring Boot, AWS, Azure, and Microservices, I specialize in leveraging AI-assisted development to drive innovation and efficiency. I thrive on tackling complex challenges and delivering scalable technology solutions that align with business goals. If you're looking for an engineering leader who can transform your digital landscape and elevate your projects, I am eager to connect and discuss how I can contribute to your success. Full Stack Developer , Enterprise developer with • Cloud & DevOps AWS, Azure, PCF, OpenShift, Docker, Kubernetes, Jenkins, GitHub Actions, Azure Pipelines, Terraform, CI/CD • Backend Technologies Java, J2EE, Spring Boot, Spring Cloud, Hibernate, JPA, Kafka, JMS, REST APIs, SOAP Services • Frontend Technologies ReactJS, Angular 7+, JavaScript, TypeScript • Databases Oracle, DB2, MySQL, MongoDB Atlas, Redis, Cosmos DB, Sybase • Big Data & Analytics AWS Kinesis, Hadoop, Cloudera, Spark, PySpark, EMR, Redshift, Sqoop, HBase • AI & Engineering Platforms Claude/Cline, GitHub Copilot, AWS AI-DLC, MCP Integrations, Observability Platforms, Grafana • Enterprise Platforms STIBO STEP MDM/PIM, Pega PRPC, DAM Platforms, ContentStack