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I'm a Senior Data Engineer with 8+ years of strong technical expertise in building reliable and scalable data infrastructure, from data ingestion to transformation to warehousing, streaming, and data analytics, specializing in dbt, Snowflake, Airflow, Databricks (and more) across AWS, Azure, and GCP, with robust ELT and ETL pipelines. If your data pipelines are brittle, your data warehouse is slow, or your data was never built to scale, that is exactly what I fix, with fault tolerance, observability, and audit-ready quality engineered in from day one. I cover the full data engineering lifecycle: batch and real-time data pipelines, Modern Data Stack builds, lakehouse architecture, cloud and warehouse data migration, governance, and the data foundations that feed modern systems. 🎯 Core Expertise: ✅ Data Pipelines & Orchestration: End-to-end batch and real-time pipelines with Apache Airflow, Dagster, Prefect, and Azure Data Factory. Idempotent, schema-drift tolerant, and monitored so failures surface before they reach your stakeholders. ✅ Cloud Warehousing & Lakehouse: Snowflake, BigQuery, Amazon Redshift, Databricks, and Microsoft Fabric, with Delta Lake and Apache Iceberg lakehouse foundations, Medallion Architecture, partitioning, and performance tuning. ✅ Data Transformation & Modeling: dbt (Core and Cloud), SQLMesh, Spark and PySpark, Star Schema and dimensional modeling, analytics engineering best practices, full test coverage, and CI/CD for data models. ✅ Streaming & Real-Time Analytics: Distributed streaming with Apache Kafka, Flink, Spark Structured Streaming, Kinesis, and Pub/Sub, including exactly-once semantics, dead-letter queues, CDC, and end-to-end latency guarantees. ✅ Data Ingestion & Integration: Fivetran, Airbyte, Matillion, Stitch, Hevo, Meltano, and custom CDC pipelines for near-real-time sync across structured, semi-structured, and unstructured sources. ✅ Data Quality, Governance & Observability: Automated data quality frameworks, SLA monitoring, auditable lineage, data catalog and metadata management, and observability that catches bad data early. ✅ Cloud Migration & Modernization: Zero-downtime migration handled end to end, from legacy warehouse assessment through cutover, with zero data loss and minimal downtime, replacing brittle ETL and ELT with a clean Modern Data Stack. ✅ AI-Ready Data Infrastructure: Pipelines engineered to feed LLMs and ML systems with clean, structured, high-quality data, from ingestion through transformation to serving. ------------------------------------------------------ ⚙️Tech Stack: ⚡ Warehouses & Lakehouse: Snowflake | BigQuery | Redshift | Databricks | Microsoft Fabric | Delta Lake | Iceberg ⚡ Transformation: dbt | SQLMesh | Spark | PySpark | Star Schema | Medallion Architecture ⚡ Orchestration: Airflow (GCP Cloud Composer and AWS MWAA) | Dagster | Prefect | Azure Data Factory ⚡ Streaming: Kafka | Flink | Kinesis | Pub/Sub | Spark Structured Streaming | ClickHouse ⚡ Ingestion: Fivetran | Airbyte | Matillion | Stitch | Hevo | Meltano | CDC ⚡ Cloud: AWS | GCP | Azure ⚡ Languages: Python | SQL (Snowflake, BigQuery, T-SQL, PL/pgSQL) | FastAPI ⚡ Databases: PostgreSQL | MySQL | SQL Server | DynamoDB | MongoDB ⚡ BI & Reporting: Looker | Tableau | Power BI | GA4 | Metabase | Superset | Streamlit | Grafana ------------------------------------------------------ ⭐ What Clients Say: 🏅 "Adarsh rebuilt our analytics pipeline on Snowflake, Airflow, and dbt, giving us reliable, version-ready data. Reporting accuracy improved overnight, and we can finally trust the numbers." – Anita, Head of Product, FinTech SaaS 🏅 "He designed a zero-downtime migration to a modern data warehouse that cut query latency by more than half while keeping our SLAs intact." – Daniel, VP of Data, AdTech Firm 🏅 "Clean architecture, solid dbt models, and Airflow pipelines running without issues for months. He brought a level of engineering discipline we hadn't seen from a data consultant before." – Mark, Director of Data Engineering, E-commerce Startup 🏅 "We came to him with a Spark pipeline costing us a fortune and delivering stale data. He restructured the workflow logic and cut processing time by 70%." – Leo, Head of Analytics, HealthTech SaaS ------------------------------------------------------ 🏆 TOP RATED PLUS | EXPERT-VETTED | Top 1% on Upwork | 8+ Years Experience | 100% Job Success 🚀 Ready to build a scalable, production-ready data infrastructure to turn your raw data into reliable, actionable business insights? Click the 'Invite to Job' button on the top right, and let's discuss your data pipeline!

SQL Server & Database Expert | 25+ Years of IT Experience Data Modeling | Design & Development | Data Analytics | Performance Tuning | Data Visualization With over 25 years of extensive IT experience, I specialize in SQL Server environments (from SQL Server 2005 to 2019). I deliver high-quality, scalable database solutions that ensure optimal performance, data integrity, and seamless integration. My expertise spans design, modeling, development, implementation, and support of SQL Server systems, with a focus on performance and efficiency. Key Skills & Expertise: T-SQL Proficiency: Creating complex triggers, tables, stored procedures, functions, and views to ensure seamless data management and integrity. Database Management: Extensive experience with normalization and RDBMS, optimizing structure and performance. SQL Server Services: Hands-on with SSIS, SSAS, and SSRS for integration, analysis, and reporting. Performance Tuning: Optimizing performance and query tuning for efficient database operation under heavy load. Data Modeling: Specializing in logical and physical modeling, using tools like Erwin for effective database design. Data Warehousing & ETL: Expertise in data warehouse design, SSIS, Azure Data Factory, and building star schema dimensional models. Business Intelligence & Reporting: Skilled in SSRS and Power BI for interactive dashboards, reports, and visualizations that turn data into actionable insights. Optimization Tools: Familiar with Index Tuning Wizard, SQL Profiler, and Performance Monitor to resolve bottlenecks. Database Administration: Proficient in MySQL and PostgreSQL database development, configuration, troubleshooting, and administration. Additional Expertise: DBA Tasks: Server maintenance, fail-over clustering, replication, backup/restoration, job scheduling, and error handling. Performance Monitoring Tools: SQL Sentry One, Grafana, and Spotlight for SQL Server. Collaboration & Teamwork: Strong in cross-functional collaboration to meet business objectives. Adaptability & Multitasking: Ability to handle multiple projects while adapting to new technologies and client needs. Quick Learner: Fast to pick up new technologies and deliver impactful solutions. Let’s Build Scalable & High-Performing Solutions Together! If you're looking for a results-driven database expert to optimize your SQL Server environment, design robust data models, or create effective BI reports, let’s connect. I'm passionate about helping clients achieve their goals through high-performance database solutions.

Microsoft Fabric | Dynamics 365 Business Central | Power Platform | Model driven apps | Canvas apps | Dynamics 365 Sales | Dynamics 365 Customer Service | Dynamics 365 Field Service | Dynamics 365 Customer Insights (Marketing) | Dynamics 365 Project Service Automation | Dynamics 365 Project Operations | ETL using SSIS & ADF | Designing Data Warehouse | SharePoint | Azure Services | Dataverse | SQL Server | Power BI | SSRS Reports | Copilot | Gen AI | LLM | Data Structuring | Data Modelling | Data Marts & Data Warehouse | Using Azure SQL | Azure Data Bricks I'm a Microsoft Dynamics 365 Architect and Techno Functional consultant with 18+ years of experience. I am Microsoft Certified • Power Platform Developer Associate • Power Platform Functional Consultant Associate • Power BI Data Analyst Associate • Azure Data Fundamentals • Power Platform Fundamentals • Fabric Analytics Engineer • Azure AI Fundamentals I've been working with various different business domains, like Insurance, Finance, Healthcare, Education, Digital Media, Information Technology, Textiles, Advertisement, Marketing, Non profit organizations, Diamond and Jewelry, Real Estate, Retail, Accounting, etc. I've been loyal, honest, and transparent to my clients for many years now. I strongly suggest reviewing the ratting in my work history.

Hello, I consider myself an expert in Oracle Database world and Open for new opportunities! I'm passionate about solution in Oracle Database design + APEX+ OCI + ORDS + OAC Expert Developer. Working with more than 13+ years' experience in Oracle technology stack. With proven experience of expert in database and OCI practice. ⭐| Technical Area Expertise: -------------------------------------------- ✔️Expert Oracle SQL/PLSQL Developer ✔️Expert Oracle APEX Developer ✔️Oracle Cloud Infrastructure (OCI) ✔️Oracle ORDS services REST develop ✔️Oracle VBCS and Form & Report ✔️Oracle OAC OBIEE Publisher Reports ✔️Oracle WebLogic support and Maintains ✔️AI&ML services projects ✔Data Integration ETL tools ⭐| Database- Technical Expertise: • Strong knowledge of Oracle Database versions 23ai/19c/12c/11g • Hands on Data Modelling and Database Design • Expert knowledge of Performance Optimizations Query Tuning • Expert of advance SQL quires & PL/SQL Programming • Hands on collections and records advance level exception handling • Database DBA Administration for standalone and OCI hosted database • Database connection issue with other languages TNS troubleshooting • Debugging of issue and SQL developer data import and export • Oracle WALLET manager , ACL and Network security issues • Oracle Certificate installations for API outbound call from DB • Send SMTP and HTTP send mail from database • Oracle REST Data Services (Configurations, REST APIs development) • Webservices Types REST, SOAP XML & JSON Data Processing • Data integrations and ETL tools (data extractions transform) ⭐| APEX - Technical Expertise: • Oracle Apex 24.1, 23, 22.x,20.x,19.x,18.x,5.x • SQL& PL/SQL Programming expert (Advanced Level) • Expert in writing Oracle Function, Procedure, Package ,Triggers, cursors and sequences. • Oracle Forms and reports to APEX modernization • Implemented projects on Oracle cloud AI Services (Generative AI, Language, Vision, Document, speech) with APEX projects • Oracle REST Data Services (ORDS) APIs development and ORDS Configurations • Integrations with APEX- Oracle Services, Microsoft, Google, Amazon, Digital Ocean, Login.com, Tableau, PayPal. • Webservices Types REST, SOAP XML & JSON Data Processing in APEX. • Automations With APEX services like Files processing, mails notification, Reports and Custom JOBS. ⭐| OCI - Technical Expertise • Setting up and managing OCI networking (VCN, subnets, gateways, VPNs, etc.) • Configuring OCI Web Application Firewall (WAF) to protect applications • Email Delivery setup with (DKIM setting) • Data-integrations, data-loading, OAC report setups • WebLogic, NGINX, and load balancer setups OCI • Supporting migration of workloads (VMs, databases) to OCI • Configure DNS and manage domain mapping to the new OCI resources. • Managing Identity and Access Management (IAM): domains, policies, dynamic groups, compartments • Setting up IAM policies, compartments, and security controls (Cloud Guard, Vault) • Working with Linux-based environments (Oracle Linux, RHEL) for system configuration, performance tuning, and troubleshooting • Monitoring, performance tuning, and cost optimization • Installation of Oracle database, APEX, OBI, ORDS, WebLogic infra. ⭐| OAC/OBIEE - Technical Expertise • OAC report dashboard design • Working on BIP report development • BIP report bursting and exporting • Email delivery of monthly reports using Bursting • Crystal AOP, Jasper, PLPDF, Tableau Reports. I have been working with clients across the globe. 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞 I guarantee to solve your technical problems 100% in timely manner! Thanks for reading my profile and I am confident that we can make your project successfully together.

I am an SAP Business One Expert | SQL & HANA Specialist | Integration & Reporting Professional I am an SAP Business One consultant with 9+ years of experience, helping businesses across diverse industries streamline operations, improve reporting, and unlock the full potential of SAP B1. My expertise spans implementation, integration, migration, reporting, and cloud deployment, making me a reliable partner for end-to-end ERP needs. Key Expertise- Database Management: Proficient in SQL & HANA, ensuring robust performance, optimization, and smooth administration. Reporting: Hands-on with SQL Queries, Crystal Reports, and Power BI, delivering insightful, actionable dashboards for smarter decisions. Integration: Expert in SAP B1 integrations via BPA, Service Layer, and DI API, connecting with platforms such as Salesforce, HubSpot, Shopify, and SANA e-commerce. Add-ons & Extensions: Extensive experience with Boyum B1UP, Print & Delivery, E-WayBill, E-Invoice, WhatsApp for B1, GST Add-on, ChatGPT for B1, and others to extend SAP B1 functionality. Migration & Deployment: Managed multiple SQL → HANA migration projects, ensuring minimal downtime. Skilled in deploying SAP B1 on AWS & Azure Cloud, leveraging scalable, secure infrastructure. Specialized Integrations: - SANA E-commerce for seamless online sales. - SmartFreight courier solutions for logistics. - Produmex & MilnerBrown WMS implementations for optimized warehouse operations. - SAP B1 & Salesforce Integration ERP Expertise: In-depth knowledge of SAP Business One ERP, offering tailored ERP solutions that fit business requirements. Why Work With Me? I take a collaborative, business-first approach, ensuring clear communication, transparency, and timely delivery. My solutions are designed not just to meet technical requirements, but to drive efficiency, growth, and ROI. Whether you need support with database management, advanced reporting, system integration, cloud deployment, or ongoing SAP B1 support, I can deliver high-quality results backed by proven experience. Let’s connect and discuss how I can help make your SAP Business One project a success.

Rahul Chaddha is a Certified Microsoft Dynamics NAV / Business Central consultant with over 15 years of experience in business solution/project management. He has extensive business solution experience and has that rare combination of functional and technical knowledge required for successful implementation, upgrades, and product development. He also has extensive experience for over five years, working for Microsoft across different projects as an international vendor. As a Microsoft Dynamic NAV expert, he has experience in analyzing, designing, and developing business applications. As a Project Manager, involved in Wok planning, Meeting SLA, On-Time Delivery, Code Reviews, Business Process Study & Documentation, Configuration and implementation, General Business Process Consulting. Skills Stack Microsoft Stack: C/AL, C/SIDE, SQL Server, NAV 2013R2/NAV2015/NAV2016/ NAV2017/NAV2018. Visual Studio Code – AL (Extensions V2 on NAV 2018, Business Central On-Premise and Online) Integrations - NAV/Business Central Integration with Magento (M1 & M2) Business Central Integrations with Shopify Dynamics NAV Integration with LightSpeed(POS) Area of Expertise Client Management Team Building and Leadership Project Management Implementation Upgrades Support/Maintenance Work Experience Implemented Business Central On-premise for an eCommerce company in US. Implemented Business Central Cloud for a Retail company in the US. Development lead for AL extensions for one of the customers in the US, the Construction Industry. Technical Lead for Upgrading customized NAV 2013 version to NAV 2018 using Extensions V2 (AL) for Private Equity Company Worked Onsite in the US for a year as a Project Manager for implementing/support NAV 2015 at Jewelry Designer. Worked as a Project Manager for an End-to-End Implementation for a Leading Chain of Fitness Health Clubs Project Manager for NAV SE (Sustained Engineering) Team for Microsoft as an international vendor. Worked as a Technical Lead for Global Development Localization & Test Automation projects for Microsoft as an International Vendor As part of MS Projects, worked at Microsoft Development Center, Copenhagen, directly with NAV Development and Testing teams I upgraded a highly customized NAV 5.0 version to NAV 2015 for multiple countries in one of Licensing companies in Switzerland. Industries/Domains Ecommerce Construction Software License Manufacturing Financial & Accounting