Hire the Best Elasticsearch Developers
in India

I build agentic AI systems that run in production - not prototypes. A couple of years ago my work was mostly Elasticsearch and data infrastructure. It's shifted a lot since then. These days I'm building full AI pipelines: multi-agent workflows with LangGraph and CrewAI, RAG systems on Pinecone and Qdrant, voice AI agents that actually make phone calls (Vapi and ElevenLabs), and security automation that goes from alert ingestion to response without waiting for a human. Some of the more interesting things I've shipped: - An automated SOC workflow that triages SIEM/XDR alerts through L1/L2 AI agents and runs response playbooks - no analyst needed for first-response decisions - A full sales pipeline where AI handles outreach, runs live qualification calls, matches buyers to sellers, and closes deals with e-signatures. Humans only touch exception cases - An employee compliance agent that monitors Slack, has actual conversations with flagged employees, and escalates to an L2 agent trained on company policy via RAG - not just a flag-and-alert system - An AI-driven personalized search engine where results rank differently per user based on real behavioral signals, not a shared relevance score My infrastructure background is deep in Elasticsearch and OpenSearch - cluster design, multi-tenant architectures, ingestion pipelines, and performance work. I once took a 50M-document production cluster from visibly slow to sub-second and called it an 8x improvement. I've also built a full multi-tenant CSOC SaaS on AWS OpenSearch with Wazuh handling the security telemetry. Stack I work with day-to-day: Python (FastAPI, Flask), LangChain, LangGraph, CrewAI, n8n, Make, Supabase, Pinecone, Qdrant, Kafka, Docker, Kubernetes, AWS. LLMs: GPT-4o, Claude, Groq, Llama locally. Voice: Vapi, ElevenLabs, Twilio, Voiceflow. I stay until the thing works. Message me if you have a project that needs a real system.

Java Spring Developer with over 15+ years of experience building scalable, high-performance solutions across diverse industries. Technical Expertise ✅Spring Ecosystem: Spring Boot, Spring Batch, Spring Cloud, Spring Security, Spring AOP, Spring MVC, JSP, Thymeleaf. ✅ AI : Claude , Codex , RAG ,Integration with OpenAI ✅Microservices & APIs: Microservices architecture, RESTful APIs. ✅Messaging & Event-Driven Systems: Apache Kafka, WebSocket, STOMP, Socket IO ✅Cloud Integration: AWS (ECS Fargate, S3, EC2, ALB, RDS). ✅Database Design: SQL (MySQL, Oracle, Yugabyte, PostgreSQL, MS SQL Server) ✅DevOps & Containers: CI/CD pipelines, Jenkins, Docker, Podman, Kubernetes ✅Search & Caching: Elasticsearch, Redis, Terracotta Caching ✅System Integration & Legacy Modernization: Seamlessly integrate modern applications with legacy systems ✅Frameworks & Tools: JHipster, Keycloak, Flowable, JBPM, Flyway, MapStruct, JavaFX, Java Swing ✅CMS Solutions: Documentum, Alfresco ✅XML & Web Services: SOAP, RESTful services ✅Reporting Tools: Crystal Reports, JasperReports, BIRT ✅Testing Framework/Tools: Junit5,Selenium,JMeter

🚀 Bringing Your Ideas to Life with a Visionary Full Stack Developer Hi there! I’m Basant Kumar Singh, a passionate Full Stack Developer with over 12 years of experience in transforming groundbreaking ideas into seamless, high-performance web applications. My focus is on delivering flawless user experiences and robust backend solutions that not only meet but exceed your expectations. Whether you're looking for cutting-edge technology or a partner to scale your web applications, I have the expertise to bring your vision to life. 🔧 What I Can Do for You: Scalable Backend Solutions: Mastery in Node.js, Nest.js, SpringBoot (Java), PHP (Laravel), Python, AWS Lambda, and GraphQL ensures the creation of highly efficient and scalable server-side applications tailored to your needs. Cloud Services Expertise: Leverage the power of AWS (EC2, S3, Lambda, RDS, DynamoDB, CloudFront) to build secure, reliable, and scalable applications that grow with your business. I also work with Azure, Google Cloud, and DigitalOcean for flexible deployment options. Advanced Search & Analytics: Integrate Elasticsearch and Kibana to provide fast, accurate search functionality and powerful data analytics that give you insights into user behavior and application performance. Dynamic Frontend Development: Craft intuitive, responsive interfaces with React.js, Next.js, Vue.js, HTML, and CSS. I also excel with Tailwind CSS, Bootstrap, and Material UI to create visually appealing, user-friendly designs. High-Performance Data Management: Expertise with MongoDB, DynamoDB, MySQL, PostgreSQL, and Firebase/Firestore, ensuring your data is handled securely and efficiently. Optimized Caching & Messaging: Use Redis for ultra-fast data caching and integrate RabbitMQ and Kafka for robust, scalable messaging systems—perfect for building real-time, high-volume applications. End-to-End Testing Excellence: I rigorously test with tools like JEST, Mocha, and Puppeteer to ensure your application runs smoothly and performs flawlessly across all devices. 💡 Why You Should Work with Me: Proven Client Satisfaction: I’m proud of my track record with 100% client satisfaction—my clients love the quality, efficiency, and reliability I bring to every project. Innovative Problem Solver: I approach each challenge with creativity and precision, ensuring you get a solution tailored to your unique needs. Forward-Thinking: Always staying up-to-date with the latest industry trends and technologies, I guarantee solutions that are modern, scalable, and future-proof. Collaborative & Transparent: I believe in building strong relationships through clear communication, collaboration, and a shared vision for success. 🌟 What You Can Expect from Me: Whether it's building a custom solution, optimizing your web performance, or streamlining your backend infrastructure, my approach is client-centric. I aim to add real value to your project while providing a seamless experience from start to finish. Let’s Bring Your Project to the Next Level! I’m excited to help you turn your ideas into reality. Reach out today, and let’s discuss how I can contribute to the success of your next big project! Warm regards, Basant Kumar Singh 😊

PROGRAMMING TECHNOLOGY EXPERTISE * Python ,Django, FastAPI,Flask,Selenium,Rest API * React.js, Next.js, Vue.js ,Angular * React Native * Flutter DEVOPS & CLOUD & CYBER SECURITY EXPERTISE * AWS Cloud Solution design and developmpent * Opensearch , Elasticsearch, Kibana, Logstash based setup, configuration and development integration * Ansible * Docker * Jenkins * GitLab Based CI-CD * Prometheus and grafana * SIEM * Surikata/Snort * Bro(zeek) * Hashicorp vault * Cyber Security Project Related development and consultation. * Kong api gateway integration

React.js | Node.js | NestJS | Next.js | Flutter | Native Apps | MongoDB | Elasticsearch | Neo4j | AWS | Postgresql I’m a results-driven full-stack developer with a strong focus on scalable backend development, API architecture, and DevOps. With hands-on experience across a wide tech stack, I’ve delivered high-performing, real-time, and secure applications for web, mobile, and cloud platforms. 🔧 Backend & API Development - Expert in NestJS, Node.js, Next.js for building scalable, modular APIs -Strong experience with MongoDB, Elasticsearch, and Neo4j for flexible, optimized, and graph-based data handling -API integration with external services and third-party SDKs -Implementation of Redis caching, RabbitMQ queues, and Kafka pipelines Real-time communication via MQTT for chat and push notifications 🌍 Frontend & Mobile -Responsive frontend development using React.js, Redux, and Next.js and flutter apps -Admin dashboards and custom CMS with Angular + Node -Cross-platform iOS and Android app development -WordPress plugin customization and styling ☁️ DevOps & Cloud Infrastructure -AWS, Azure, Digital Ocean, Terraform, EC2, S3, CloudFront, HAProxy -Setup of Load Balancers, Auto Scaling Groups, and SSL Configurations -Deployment automation with AWS Lambda and Serverless Framework -Database backups, replication, and migration across platforms 📊 Database Expertise -Schema design, optimization, and migration scripts between DBs and CSV -MongoDB replication and Monstache integration for syncing with Elasticsearch -Clustering, sharding, and replica sets setup 🎮 Special Projects -Real cash game platform & casino leaderboard development -Customer engagement and web chat support applications -Telegram bot development and Electron.js desktop apps 🎨 Creative Services -Logo design and app introduction videos -Custom UI/UX enhancements via CSS, jQuery, and animations

✅ Top Rated Plus | 100% JSS | 4x Certified (AWS SA Pro, GCP Pro Architect, Snowflake) | BITS Pilani MTech Data Science | Full Stack Developer & Data Engineer | React, Python, Node.js, Spark | $20K+ earned | 1,845+ hours I build full-stack web applications and data engineering systems that go to production, not to demo day. SaaS MVPs, Spark-based ETL pipelines, cloud architecture on AWS and GCP, I handle both the application layer and the data infrastructure behind it. 🔹 Full-Stack SaaS & Web Application Development React, Next.js, Node.js, and Python backends for SaaS platforms, dashboards, internal tools, and customer-facing apps. MVP to production on AWS/GCP with CI/CD, automated testing, and monitoring from day one. 19 Upwork contracts delivered with structured milestones. 🔹 Data Engineering & ETL Pipeline Architecture End-to-end data pipeline design with Apache Spark, PySpark, Scala, Snowflake, and Airflow. Batch and streaming ETL processing millions of records per run. Data lake architecture, warehouse modeling, analytics-ready output layers. 8+ years building production Spark + Cassandra systems at enterprise scale. 🔹 Cloud Architecture & Infrastructure (AWS + GCP) 4 cloud architecture projects on Upwork, all rated 5.0. $2,300 CloudStack design. AWS architecture advisory. EC2, Lambda, S3, RDS, EMR, Redshift on AWS. BigQuery, Dataflow, Cloud Functions on GCP. Terraform for IaC, Docker and Kubernetes for orchestration, zero-downtime deployments. 🔹 API Development & Backend Systems REST API and GraphQL backends with Node.js, NestJS, FastAPI, and Django. Microservices, Redis caching, WebSocket integrations, Stripe payment APIs, OAuth/JWT authentication. Backend services handling concurrent users at production scale. 🔹 Database Design & Data Modeling PostgreSQL, MongoDB, MySQL, Cassandra, DynamoDB, Redis. Schema design, query tuning, indexing, partitioning. Star and snowflake schemas, slowly changing dimensions, SQL optimization for analytics. Architecture decisions balancing performance, throughput, and cost. 🔹 AI Integration & Intelligent Applications OpenAI API, Hugging Face, NLP pipelines, chatbot systems, text extraction and summarization. Delivered NLP processing on Upwork. AI-powered features built into SaaS products as production features, not standalone experiments. 🔹 Real-Time Processing & Event-Driven Systems Kafka for event-driven architectures, change data capture, WebSocket dashboards, streaming pipelines for near-real-time analytics. Application events connected to data warehouse layers. 🔹 Frontend Performance & TypeScript Engineering React and Next.js with SSR/SSG for SEO-friendly rendering. TypeScript full stack. Core Web Vitals optimization, Tailwind CSS, responsive design. Fast-loading frontends that rank and convert. 🔹 DevOps, CI/CD & Production Systems Docker, Kubernetes, Terraform, GitHub Actions, GitLab CI. Serverless with AWS Lambda and GCP Cloud Functions. Monitoring, logging, alerting for production. Zero-downtime deployment strategies. 🔹 Technical Consulting & Architecture Advisory TypeScript and AWS Lambda tutor on Upwork, rated 5.0 over 13 hours. Cloud migration advisory, system design review, code audits, performance optimization, engineering mentorship. 📊 AWS Solutions Architect Professional + Associate (Dec 2026) | GCP Pro Cloud Architect (Jul 2026) | Snowflake Core (Jan 2026) 📊 MTech Data Science, BITS Pilani, ranked top 5 engineering institutions in India 📊 19 contracts, 100% JSS, Top Rated Plus, 1,845+ hours tracked, $20K+ earned 📊 "Jay's expertise brought the architecture design to life in ways I hadn't imagined" (5.0 rated) 📊 8+ years: React, Node.js, Python, Java, Scala across SaaS, healthcare, fintech, enterprise → Day 1: Requirements call + architecture proposal with tech stack rationale → Week 1: Sprint development, daily Loom/Slack updates, working code shipped → Ongoing: Weekly demos, priority reviews, transparent tracking, full documentation → Delivery: Documented code, CI/CD configured, deployment guide, 2-week post-launch support Full Stack: React, Next.js, Node.js, NestJS, Express, TypeScript, JavaScript, Python, FastAPI, Django Data: Apache Spark, PySpark, Scala, Snowflake, Airflow, Kafka, ETL, dbt, SQL, BigQuery Cloud: AWS (Lambda, EC2, S3, RDS, EMR, Redshift), GCP (BigQuery, Dataflow), Docker, Kubernetes, Terraform DB: PostgreSQL, MongoDB, MySQL, Redis, Cassandra, DynamoDB, Supabase AI: OpenAI API, Hugging Face, NLP, LLM Integration, TensorFlow, PyTorch 💬 Message me with your project scope or data challenge. I respond within 4 hours with a free assessment and can start within 48 hours.