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With 14+ years of experience in full-stack web and mobile application development, I help startups and enterprises build scalable, secure, and AI-powered applications from idea to production. I work closely with clients throughout the entire product lifecycle — from requirement analysis and architecture design to UI/UX, development, deployment, and scaling. My experience spans modern JavaScript frameworks, Python-based backends, cloud infrastructure, and AI-driven development workflows, enabling me to deliver solutions that are both technically robust and business-focused. I have successfully built simple MVPs to complex enterprise platforms across industries such as Healthcare, FinTech, Logistics, Marketplaces, and Social Platforms. --- Core Expertise : Full Stack Development * Frontend: React.js, Angular, React Native, JavaScript, jQuery * Backend: Python, Node.js, PHP (Laravel, CakePHP) * Databases: MySQL, PostgreSQL, MongoDB, InfluxDB * API Development: REST APIs, Web Services, Microservices AI-Assisted Engineering * Cursor AI development workflows * GitHub Copilot and AI coding agents * AI-powered application features * Integration with AI APIs and models * AI-assisted development pipelines Cloud & Infrastructure * AWS architecture and deployment * AWS Lambda * Amazon S3 * CloudFront * Serverless architecture * DevOps deployment pipelines Data & Visualization * Highcharts data visualization * Real-time dashboards * Time-series data using InfluxDB * Grafana monitoring * Kafka streaming pipelines --- Domain Experience : Healthcare Technology * HIPAA-compliant systems * Telemedicine platforms * Clinical workflow systems * HL7 & FHIR integrations * EMR / EHR integrations * Cerner APIs (System, Provider & Patient APIs) FinTech * Payment integrations using Plaid & Dwolla * Secure financial APIs * Compliance-driven architecture Industrial IoT / Automation * SCADA System * PLC integration * OPCUA protocol * Ethernet/IP * Modbus TCP * Real-time machine data collection and control --- Additional Technical Expertise * Custom Slack Apps & Bots * Bubble no-code / low-code platform * Secure API architecture * Web application security * Real-time data systems * Marketplace & SaaS platforms --- Development Approach * Quick understanding of business requirements * Clean, maintainable, and scalable code * Strong communication with clients * Secure and reliable architecture * Leveraging AI tools to accelerate development --- Industries Served * Healthcare & Telemedicine * FinTech * Logistics & Supply Chain * E-commerce * SaaS Platforms * Marketplaces * Social Platforms --- If you are looking for an experienced developer who can transform complex ideas into reliable and scalable applications, I would be happy to collaborate. Thanks!

Ex-Walmart Global Tech Engineer (Fortune #1 Company) | Backend, Full Stack & Cloud Engineer 4+ years of software engineering experience delivering scalable backend systems, SaaS platforms, cloud-native applications, workflow automation solutions, AI-powered products, and production-grade APIs. I've worked across enterprise and startup environments, delivering 20+ projects involving microservices, workflow orchestration, cloud infrastructure, DevOps automation, AI integrations, marketplace platforms, analytics systems, and large-scale business applications. At Walmart Global Tech, I built scalable backend services, APIs, workflow systems, and data platforms supporting enterprise-scale operations. My work focused on performance optimization, workflow automation, system reliability, cloud-native development, and large-scale data processing. I specialize in turning complex business requirements into reliable, scalable, and maintainable software solutions. 🚀 Backend Engineering ⭐ Java & Spring Boot ⭐ Node.js & Express.js ⭐ Python (FastAPI, Django) ⭐ PHP & Laravel ⭐ REST APIs & Microservices ⭐ OpenAPI / Swagger ⭐ Apache Kafka ⭐ Event-Driven Architecture ⭐ Camunda BPM & Workflow Automation ⭐ Apache Airflow ⭐ Third-Party API Integrations ⭐ Distributed Systems ⭐ System Design & Scalability Key Impact: ✔ Developed 100+ production APIs and integrations ✔ Improved API response times by 20–30% through performance optimization ✔ Built scalable systems processing millions of records ✔ Automated business workflows reducing manual effort by 50%+ 🎨 Frontend Development ⭐ React.js ⭐ Next.js ⭐ JavaScript ⭐ TypeScript ⭐ HTML5 & CSS3 ☁️ Cloud & DevOps ⭐ AWS Cloud Infrastructure ⭐ Docker & Containerization ⭐ Kubernetes ⭐ Jenkins ⭐ GitHub Actions ⭐ GitLab CI/CD ⭐ Infrastructure Automation ⭐ Deployment Automation ⭐ Linux Administration ⭐ Monitoring & Production Support ⭐ DevOps & Release Engineering Key Impact: ✔ Reduced deployment effort by 80% through CI/CD automation ✔ Improved release reliability through automated deployment pipelines ✔ Supported highly available production environments with strong observability practices 🗄️ Databases & Data Technologies ⭐ PostgreSQL ⭐ MySQL ⭐ MongoDB ⭐ Redis ⭐ SQL Server ⭐ Oracle Database ⭐ Elasticsearch 🤖 AI & Automation ⭐ OpenAI APIs ⭐ AI Integrations ⭐ Workflow Automation ⭐ AI-Assisted Development (Cursor, Claude, ChatGPT, GitHub Copilot) Key Impact: ✔ Built AI-powered workflow automation platforms ✔ Integrated AI services into production applications ✔ Automated content processing and operational workflows 🏆 Recent Project Highlights ✔ AI-Powered Workflow Automation Platform * Reduced manual processing effort by 50%+ * Integrated AI-driven automation into business workflows ✔ Enterprise SaaS Management Platform * Built scalable backend architecture and APIs * Improved operational efficiency through workflow automation ✔ Marketplace & Matching Platform * Implemented provider matching, notifications, and transaction workflows * Designed scalable backend architecture supporting future growth ✔ Enterprise Data & Analytics Platform * Processed millions of records through automated ingestion pipelines * Reduced reporting turnaround time significantly through automation ✔ DevOps Automation & CI/CD Platform * Reduced deployment effort by 80% * Improved release quality and deployment consistency ✔ Cloud-Native Backend Infrastructure * Designed scalable microservices and API-driven architectures * Implemented monitoring, observability, and production support workflows ✔ WiCAN / OBD Diagnostic Platform * Built backend integrations and CAN communication workflows * Developed hardware-to-cloud communication systems Why Clients Work With Me ⭐ Ex-Walmart Global Tech Engineer ⭐ 4+ Years of Professional Experience ⭐ 20+ Successfully Delivered Projects ⭐ Strong Backend, Full Stack & Cloud Expertise ⭐ Fast Execution & Ownership Mindset ⭐ Clean, Scalable & Maintainable Code ⭐ Enterprise + Startup Experience ⭐ Production-Grade Cloud Infrastructure Experience ⭐ Strong Debugging & Root Cause Analysis Skills ⭐ End-to-End Product Delivery Whether you need a scalable backend, workflow automation platform, AI-powered application, cloud-native architecture, marketplace platform, enterprise dashboard, SaaS product, DevOps automation, or complex system integration, I can help transform requirements into reliable, production-ready solutions.

I’m LJ, your dedicated partner for seamless and efficient healthcare support. 💼 4+ Years in Healthcare 🔒 HIPAA Certified | 🖥 Tech- Savvy & Efficient ⏳ Cost-Effective | ⚡ Always Ready Healthcare Expertise: 💓 Cardiology 🧑‍🦽 Physiotherapy 🏡 Home Care 🧠 Mental Health 🧪 Mobile Labs 💆 Chiropractic 🧬 Neurology Other: 📊 CRM, Marketing & Advertising 💡 Key Skills: ● Intake & Scheduling (Telehealth, Clinic, Home Visits) ● Insurance Verification & EHR Management ● PRIOR AUTHORIZATION (CoverMyMeds) ● Remote Patient Monitoring (Blood Pressure) ● Chronic Care Management (Medication Refills, Follow-Ups, Imaging, Labs) ● Lab Requisition ● SOAP Note Documentation and Summarizing Medical Records ● Light Billing & Coding ● Call, Email, and SMS Management 🛠 Tools & Software: 🩺 EHR Systems Practice Fusion | TherapyNotes | SimplePractice | IntakeQ | Nookal | Coreplus | eClinicalWorks | ChiroHD | Office Ally 🧪 Healthcare Platforms Availity | Kareo | CoverMyMeds | Fora | MD Toolbox | Snapforms | Medcallz | LabDaq/Lab Nexus 💻 Office & Productivity Microsoft Office | Google Workspace | Outlook | Gmail | Trello | Asana | Connex | BoldSign 📞 Communication Tools RingCentral | Dialpad | 3CX | GoTo | Google Voice | Slack | Discord | WhatsApp 📈 SaaS, Marketing Tools and Automation GoHighLevel (GHL) | Canva | Keap | Zoho | Notion | MailChimp | Power Automate 💓 Commitment: I ensure seamless operations and quality care for patients, families, and healthcare teams. 📩 Let’s Work Together. Ready to optimize your practice? Let’s connect. What’s the best time for a discovery call?

🏆 TOP RATED PLUS || Top 1% on Upwork || Expert Vetted || 8+ Years of Experience || 100% Job Success Most data teams are held back by unreliable pipelines, warehouses they cannot trust, and data infrastructure that was never built to scale. That's exactly what I fix. As a Senior Data Engineer, I don't just write SQL and call it a pipeline. I architect end-to-end data systems where reliable ingestion feeds into clean, versioned transformations that power decisions your business can act on. My approach prioritizes fault tolerance, scalability, and observability across both batch processing and real-time analytics workloads. This ensures your data infrastructure is not just functional, but resilient and audit-ready. Whether you need cloud data migration, data platform modernization to a Modern Data Stack (Snowflake/dbt/Airflow, Microsoft Fabric), or streaming analytics infrastructure, I deliver production-grade systems that help technical founders and data teams eliminate pipeline debt, automate complex data workflows, and build scalable infrastructure ready for AI workloads. ------------------------ Where I make the biggest impact: ✅ I lead data migration and data platform modernization projects, replacing brittle ETL and ELT pipelines with a Modern Data Stack built on Snowflake, dbt, Airflow, and Microsoft Fabric. ✅ Every engagement includes Medallion Architecture design, full test coverage, CI/CD for data models, data lineage tracking, and documentation that outlasts the project. ✅ I design data pipelines for both batch processing and real-time analytics, idempotent, schema-drift tolerant, and monitored through data observability frameworks, so failures are caught before they reach your stakeholders. ✅ Warehouse models are built to serve the business: Star Schema, dimensional modeling, dbt projects, analytics engineering best practices, and a metrics layer backed by a data catalog and metadata management. ✅ I architect distributed systems for big data and streaming analytics, including Kafka, Flink, Spark Structured Streaming, exactly-once semantics, dead-letter queues, and end-to-end latency guarantees. ✅ AI data pipelines are engineered to feed LLMs and ML systems with clean, structured, high-quality data, from ingestion through transformation to serving. ✅ I bring governance to data platforms through data mesh, data catalog implementation, metadata management, and data integration across systems. ✅ Data quality and data reliability are enforced end to end, with automated frameworks, SLA monitoring, auditable lineage, and observability that catches bad data before it reaches your stakeholders. ✅ I build AI-ready data infrastructure and lakehouse foundations, Delta Lake, Apache Iceberg, cloud data architecture, and CDC pipelines for near-real-time sync. ✅ Cloud data migration is handled end to end, from legacy warehouse assessment through cutover, with zero data loss and minimal downtime. ------------------------ What I Build With: 🗄️ Warehouses, Lakehouses & Data Lakes: Snowflake, BigQuery, Redshift, Databricks, Microsoft Fabric, Delta Lake, Iceberg ⚙️ Transformation: dbt (Core & Cloud), SQLMesh, Spark, PySpark, Star Schema, Medallion Architecture 🔁 Orchestration: Airflow, Dagster, Prefect, Azure Data Factory, Microsoft Fabric 📨 Streaming: Kafka, Kinesis, Pub/Sub, Flink, Fabric Eventstream 🔗 Ingestion: Fivetran, Airbyte, Matillion, Stitch, Hevo, Meltano, CDC pipelines ☁️ Cloud: AWS, GCP, Azure 🐍 Languages: Python, SQL (Snowflake, BigQuery, T-SQL, PL/pgSQL) 🗃️ Databases: PostgreSQL, MySQL, SQL Server, DynamoDB, MongoDB 📊 BI & Reporting: Looker, Tableau, Power BI, Metabase, Superset, Streamlit ------------------------ 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 ⭐ "Adarsh built our entire data platform from the ground up. Clean architecture, solid dbt models, and Airflow pipelines that have been 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 Adarsh with a Spark pipeline that was costing us a fortune and delivering stale data. He diagnosed the bottlenecks, restructured the job logic, and cut our processing time by 70%. Technically sharp, communicates clearly, and delivers without hand-holding." – Leo, Head of Analytics, HealthTech SaaS ------------------------ 🚀 Let's Build Your Data Foundation 📩 If your data infrastructure needs to be faster, cleaner, and something your team can trust, send a quick message about your project and I'll take it from there.

👋 Hi! This is Mohit S. I have total 14 Years of experience in IT. These many years i have worked on multiple projects with 100% Success. Recently onboarded here on upwork to help company/individual to successfuly deliver the project in right direction. ⭐College Background⭐ I have done my bachlor of engineering (Computer science) from LNCT (MP) in 2007. ⭐Skills⭐ 📖 Liferay DXP Certified ✅ Liferay 5.x , 6.x , 7.x ✅ Auth, SSO, AD, Integrations ✅Java Expert ✅Rest API ✅Headless API ✅ EJB ✅Struts 2.0 ✅ React ✅CI/CD Process Development using Jenkins, GitHub Actions ✅Code review and Audit ✅Code Quality Assurance with SonarQube ✅ Scoping and solution ✅ Automation and AI ⭐You can expect following from me⭐ ✅Business requirement and scope finalization for project (Govt , Public both) ✅Completing end to end flow ✅End to End solutioning and Implementation ✅Architecture view and solutioning overall project and stackholders ✅Documentation for all small/big steps for future purposes ✅Implementation and Developement ✅Performance Monitoring, troubleshooting and Fixing ✅API implementation,integration and troubleshooting ✅Go-live support and maintenance ✅Migration solutioning and implementation ✅Tech lead, Solutioning and Team mentoring 🤝Previous Partnerships🤝 ⚡CMS website for reowned manufacturer company ⚡Corporate website on liferay ⚡E-commerce project like Amazon ⚡Intranet portal for multiple MNC and Banks like Axis, SBI ⚡ DMS and CMS ⚡ Multiple Middle east govt project 🏢 Ready to elevate your project? If you are starting the project or in middle/final stage of project, i will help you assisting in all aspects possible to make sure project/task is successfully completed. My objective is to make sure your problems are resolved. Lets connect and colloborate to make a successful and happy client project.

Hi, This is Ibtisam, a seasoned Full Stack Developer with 5+ years of experience delivering robust, scalable, and secure applications across a wide range of industries. I bring hands-on expertise in Java, .NET, Liferay, and both modern and enterprise tech stacks to solve complex backend and full-stack challenges. 🔧 What I Specialize In: ✅ Java, Spring & Microservices Architecture Spring Boot, Spring MVC, Spring Security, Spring Data JPA, Spring Cloud RESTful API design, authentication (JWT, OAuth2), and scalable microservices Dockerized deployments, CI/CD pipelines, SSL/TLS integration ✅ .NET Core Development REST APIs, Entity Framework, ASP.NET MVC Modular enterprise systems with cloud-native support ✅ Liferay Development & Upgrade Liferay DXP/CE customization, Service Builder, OSGi modules Portal upgrades, plugin migration, role/permission-based content management ✅ Frontend Technologies ReactJS, Angular, HTML5, CSS3, Bootstrap Modern, responsive UI design integrated with secured APIs ✅ Search & Indexing Systems Deep experience with Elasticsearch and Apache Solr Integrated search with highlighting, filtering, faceting, and analytics ✅ Databases & Cloud Infrastructure MySQL, PostgreSQL, MongoDB, Redis AWS, Azure, Google Cloud Tomcat, JBoss, IIS server configurations and optimizations 🛠️ Tech Stack at a Glance: Languages: Java, C#, SQL, JavaScript, TypeScript Frameworks: Spring Boot, Spring Framework, .NET Core, ReactJS, Angular Databases: MySQL, PostgreSQL, MongoDB, Redis Search: Elasticsearch, Apache Solr Cloud: AWS, Azure, Google Cloud Servers: Tomcat, JBoss, IIS Tools: Docker, Jenkins, GitHub Actions, Jasper Reports IDEs: IntelliJ IDEA, Eclipse, Liferay Developer Studio, VSCode, PyCharm Agile Practices: Scrum, Kanban, CI/CD I believe in clean, testable code, timely delivery, and long-term partnerships built on trust and transparency. Whether you're modernizing legacy systems, building APIs, or scaling microservices — I'm ready to jump in. 📩 Let’s connect — I’m available for interviews, technical assessments, and long-term collaboration. Thanks, Ibtisam Full Stack Developer, Java Developer, Spring Boot, Spring Security, Spring Data JPA, Microservices, REST APIs, .NET Developer, .NET Core APIs, Entity Framework, ReactJS, Angular, Liferay Developer, Liferay Upgrade, MySQL, PostgreSQL, MongoDB, Redis, Elasticsearch, Solr, Tomcat, JBoss, IIS, AWS, Azure, Google Cloud, Docker, Kubernetes, CI/CD, OSGi, Spring Cloud, API Security, Responsive UI, Cloud-Native Development, Custom Web Portals, Jasper Reports