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Ex-Walmart Global Tech Engineer (Fortune #1 company). 4+ years building SaaS platforms, cloud-native applications, AI-powered systems, workflow automation, and production-grade APIs. Java | Spring Boot | Node.js | Python | PHP | Laravel | React | AWS | Docker | Kafka | Camunda At Walmart Global Tech, I built scalable backend systems, microservices, APIs, real-time data platforms, and cloud-native solutions supporting enterprise-scale operations. I'm a Full Stack, Backend & DevOps Engineer with experience delivering enterprise software, SaaS products, workflow automation systems, AI-powered applications, marketplace platforms, and cloud-native solutions for both enterprise and startup environments. Recently, I've built SaaS platforms, AI-powered automation systems, enterprise dashboards, cloud-native applications, workflow orchestration solutions, marketplace platforms, and document-processing systems. 🚀 Backend Development ⭐ Java & Spring Boot ⭐ Node.js & Express.js ⭐ Python, FastAPI & Django ⭐ PHP & Laravel ⭐ REST APIs & Microservices Architecture ⭐ OpenAPI / Swagger Documentation ⭐ Apache Kafka & Event-Driven Systems ⭐ Camunda BPM & Workflow Automation ⭐ Apache Airflow ⭐ Third-Party API Integrations ⭐ System Design & Scalability 🎨 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 🗄️ 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) 🏆 Recent Project Highlights ✔ AI-Powered Workflow Automation Platform ✔ Scalable SaaS Management Platform ✔ Real Estate Marketplace Platform ✔ Enterprise Laravel & PHP Applications ✔ Django-Based Backend Services & Automation Tools ✔ Real-Time Analytics & Dashboard Systems ✔ Enterprise API & Microservices Platforms ✔ Cloud-Native Backend Infrastructure ✔ DevOps Automation & CI/CD Platforms ✔ Document Processing & Import Automation Systems ✔ WiCAN / OBD Diagnostic Platform Development Why Clients Work With Me ⭐ Ex-Walmart Global Tech Engineer ⭐ Strong Full Stack, Backend & DevOps Expertise ⭐ Fast Execution & Ownership Mindset ⭐ Clean, Scalable & Maintainable Code ⭐ Production-Grade Cloud Infrastructure Experience ⭐ Strong Debugging & Root Cause Analysis Skills ⭐ Enterprise + Startup Experience ⭐ End-to-End Product Delivery Whether you need a scalable backend, a full-stack SaaS application, cloud infrastructure, DevOps automation, workflow orchestration with Camunda, AI integration, marketplace platform, enterprise dashboard, or a complex system integration, I can help turn requirements into reliable, production-ready solutions.

I am a senior software developer and architect (Total- 21 Yrs.) in Java/J2ee, Python, Rest API, SOAP API, javascript, OAuth, SSO, React, Redux, Angular, Kafka, SpringBoot, JPA, Cloud, AWS, Azure, Private cloud, JBPM, n8n, Oracle BPM, JMS, Hibernate, Struts, Spring Batch, ESB, Base44, Playwright, Selenium, JavaFX, Lisp, Prolog, Weka , OpenAI, Different Web as well as Application Servers, different Operating Systems and DBMS Tools, SQL, NoSQL, PostgreSQL, Mongo, Cassandra, MYSQL, Oracle, Supabase, AI, NLP, OpenAI, agent development, Wordpress, php , CI/CD, Agile and various open-source tools, technologies and frameworks. Some of the domains I have worked on are Banking, finance, Trade, Crypto, HR, Insurance, Learning, NLP, Healthcare, System architecture, Developers Tooling, Document management, AI, DevOps, Cloud, etc. ********************************************************************* Experience Summary: Freelancing || Freelancing || Present Toyow, Mumbai || Solution Architect || Sep 24 to JAN 25 JPMorgan, Mumbai || Vice President || Jun 15 to July 24 and May 10 to Jun 13 || (Around 12 Yrs.) Deloitte, Mumbai || Senior Consultant/Specialist Senior || Jun 13 to Jun 15 HCL Technologies || Onsite/Offshore Dev lead || Sep 06 to May 10 Birla Soft Ltd || Software Engineer || Jan 06 to Sept 06 GIIT, Gr. Noida || Developer || Feb 05 to Oct 05 ************************************************************************* Some of the applications are as below which I have developed/contributed. - Document generation system - Online translation system using NLP - Library management system - HRMS System - Networking system - Tools for Developer and Operate to build and deploy their applications. - Workflow as a service - Workflow Platform for Mutual Fund NAV processing (Fund accounting) - Prediction analysis for SLA miss. - A real time dashboard for fund processing - Messaging Platform supporting MQ, SFTP, REST, Kafka, FIX, - Trade instruction manager - Customer support system for Bank operators - Platform for Tokenization Assets using Blockchain - A social Media application - A insurance management Platform - Applications developed on Base44 - Loan record reports - OCR for healthcare reports and data processing. - ChatBot for Patient enquiry - Coin analysis using AI (openAPI integration)

⏰ Available 24/7 – Long-term & High-impact Projects Hi, I’m Nghi, a Senior Data Engineer and Data Architect with a strong backend foundation, now focused on building high-performance analytics platforms, explainable data pipelines, and production-grade cloud architectures. I help companies transform unreliable, slow, or opaque data systems into scalable, well-documented, and business-trustworthy platforms. 🧠 WHAT I SPECIALIZE IN 🏗️ Data Architecture & Platform Design - Designing modern lakehouse & warehouse architectures - dbt-first analytics engineering with testing, freshness & lineage - Event-driven and batch hybrid pipelines - Data quality frameworks & SLA monitoring - Customer-facing data explainability systems Tools: dbt, Dagster, Airflow, Spark, Kafka, Snowflake, BigQuery, Redshift, PostgreSQL, DuckDB, ClickHouse ⚡ Database Performance Engineering - If your queries are slow, costs are high, or dashboards lag, This is my zone - Query plan analysis & index strategies - Warehouse cost optimization (Snowflake, BigQuery, Redshift) - OLTP & OLAP performance tuning - High-concurrency workload design 🔄 Reverse ETL & Operational Analytics - Syncing analytics back to CRMs & internal tools - Building real-time metrics pipelines - Feature-store style transformations 🕷️ Enterprise-grade Web Data Extraction - I don’t just scrape pages, I build durable data acquisition systems: - Complex ASP.NET, JS-heavy, authenticated & paginated systems - Anti-bot bypassing & failure-recovery pipelines - Headless browser automation + async scraping - Real-estate, finance, campaign-finance & marketplace platforms ☁️ Cloud Infrastructure - AWS | Azure | GCP - EMR / Dataproc / Glue / Dataflow / Synapse / BigQuery / Redshift - Terraform-based deployments - Cost-aware architectures - Kubernetes + Dockerized data services 🧪 What You Get Working With Me ✔️ Production-ready pipelines ✔️ Clean, testable dbt models ✔️ Well-documented architecture diagrams ✔️ Transparent data logic for non-technical stakeholders ✔️ Systems that scale beyond MVP ✔️ Honest advice and not over-engineering 🏆 Ideal Projects 👍 Data warehouse migrations 👍 Broken pipelines that need debugging & stabilization 👍 Analytics platforms that lack trust or explainability 👍 Performance bottlenecks costing thousands per month 👍 Long-term data platform ownership ❣️ Why Clients Stay Long-Term 🍀Clear communication 🍀 Business-first thinking 🍀 No black-box systems 🍀 I build systems others can maintain 🇻🇳🇻🇳🇻🇳🇻🇳 If your data platform feels fragile, slow, or impossible to explain to customers, I can fix that. Let’s make your data system something you can confidently stand behind.

We provide end-to-end SRE, DevOps, Development, Observability, and Salesforce services to help businesses build, operate, and scale reliable, high-performance systems. Our services are designed to reduce downtime, improve system performance, and automate operations using modern cloud and AI-driven solutions. --- 🔹 **Application Development Services** We deliver scalable and production-ready applications tailored to your business needs: * Backend & API development (Python, Java, Go, Rust) * Frontend development (JavaScript, React) * Microservices and cloud-native architecture * Performance-optimized and secure application design --- 🔹 **Salesforce Services** We help businesses implement, optimize, and monitor Salesforce platforms for maximum efficiency: * Salesforce implementation and customization * Performance monitoring and optimization (integrated with observability tools like Dynatrace) * API integrations with external systems * Automation of workflows and business processes * Troubleshooting and performance issue resolution --- 🔹 **Site Reliability Engineering (SRE) Services** We ensure your systems are reliable, resilient, and always available: * Incident management and root cause analysis * SLA/SLO implementation and monitoring * System reliability and performance engineering * MTTR reduction and uptime improvement --- 🔹 **DevOps & Cloud Services** We automate and optimize your development and deployment workflows: * CI/CD pipeline setup and optimization * Infrastructure as Code (IaC) implementation * Kubernetes and container orchestration * AWS and Azure cloud solutions --- 🔹 **Dynatrace & Observability Services** We provide complete observability solutions with Dynatrace: * End-to-end monitoring setup (APM, Infra, Logs, RUM) * Dashboard creation, alerting, and tagging strategies * Problem detection and root cause analysis * Advanced insights using DQL --- 🔹 **Monitoring & Performance Optimization** We proactively monitor and optimize your systems: * Real-time monitoring and alerting * Application and infrastructure performance tuning * Cost and resource optimization * Proactive issue detection and prevention --- 🔹 **AI Automation & AIOps Services** We help you automate operations using AI-driven solutions: * Intelligent alerting and auto-remediation workflows * Automated tagging and maintenance window creation * AI agents for monitoring and operational tasks * Natural language to automation workflows --- 🔹 **Custom Solutions & Integration** We build and integrate solutions based on your unique requirements: * API integrations and automation scripts * Custom monitoring extensions and tools * End-to-end workflow automation --- 💡 **What you get:** * Reduced downtime and faster issue resolution * Improved system performance and reliability * Lower operational costs through automation * Scalable and future-ready infrastructure --- We act as your technology partner to ensure your systems are always optimized, reliable, and ready to scale.

I am an Engineer who has multidisciplinary experiences and is expert in Big Data Processing and API Development. I am experienced in creating and implementing scalable data architectures, developing and optimizing ETL (Extract, Transform, Load) processes, and ensuring data quality and integrity. I am also experienced in developing APIs and providing the best solutions for the tech problems.

Welcome! Your Elasticsearch & OpenSearch Expert Looking for a reliable expert to design, optimize, or troubleshoot Elasticsearch or OpenSearch platforms? I’m Eraste Akande, Elastic Certified Engineer and Elastic Gold Contributor, with strong experience delivering scalable, high-performance search, observability, and analytics solutions. I help companies turn complex data into fast, reliable, and actionable systems, from cluster architecture to production-ready pipelines. What I Do Best? I design and optimize end-to-end Elastic & OpenSearch solutions, including: - Elasticsearch & OpenSearch cluster architecture and scaling - Migration from relational or NoSQL databases to Elasticsearch / OpenSearch - Elasticsearch ↔ OpenSearch migrations (both directions) - Search, analytics, and observability use cases - Log and event ingestion pipelines - Performance tuning and troubleshooting - Automation and integrations using Python Technologies I work with daily: Elasticsearch, OpenSearch, Logstash, Beats, Kibana, OpenSearch Dashboards, Kafka, Python Why Clients Choose Me ? ✅ Elastic Certified Expert Elastic Certified Engineer (since 2022) Elastic Certified Observability Engineer (2025) Elastic Certified Analyst (2025) ⭐ Elastic Gold Contributor Recognized by Elastic for consistent contributions, technical support, and knowledge sharing across the community. 🔄 Migration Specialist I help organizations safely migrate: - Relational databases (PostgreSQL, MySQL, SQL Server, Oracle) → Elasticsearch / OpenSearch - NoSQL databases (MongoDB, Cassandra, etc.) → Elasticsearch / OpenSearch - Elasticsearch → OpenSearch - OpenSearch → Elasticsearch With minimal downtime, zero data loss strategies, and performance validation. 🔍 OpenSearch Specialist Hands-on expertise in OpenSearch cluster setup, optimization, dashboards, and ingestion pipelines as a flexible and cost-effective alternative. 🐍 Python-Driven Automation I use Python to automate indexing, optimize queries, integrate third-party systems, and build efficient custom workflows. 🔧 End-to-End Delivery From architecture design to production optimization, I provide complete, tailored solutions — not just advice. 🤝 Client-Focused Approach I prioritize performance, scalability, and maintainability, ensuring solutions that grow with your business. Services I Offer - Elasticsearch / OpenSearch Cluster Setup & Optimization - Database → Elasticsearch / OpenSearch Migration - Elasticsearch ↔ OpenSearch Migration - Search & Analytics Architecture Design - Custom Kibana / OpenSearch Dashboards - Log & Event Ingestion Pipelines (Logstash, Beats) - Performance Tuning & Troubleshooting - Python Automation & Integrations Let’s Work Together If you need an expert who understands both the technical depth and real business impact of Elasticsearch and OpenSearch, including complex migrations, you’re in the right place. 📩 Message me today and let’s build or migrate your data platform with confidence.