Hire the Best Apache Solr Developers
in India

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Sumitbhai V.

Ahmedabad, India

$30/hr
4.9
58 jobs

I’m a hands-on enterprise software professional with 14+ years of experience building scalable, process-driven solutions using leading AI, RAG, AI Agents, Agentic AI workflows implementation and collaboration, Vector DB, Graph DB, BPM platforms like Camunda 7 BPM, Camunda 8 BPM (Zeebe), Flowable BPM, Activiti BPM, and JBPM with Spring boot micro services and Python. I’ve helped clients design, automate, and optimize complex business processes for banking, insurance, government, and finance sectors. 💼 What I Do Best ✅ AI & LLM Integration | Intelligent Automation | RAG | Agentic Workflows | N8N (AI Autumation) | Airtable - AI-powered chatbot assistants using OpenAI GPT models, Claud and Ollama (Mistral, Llama), Claud with Python FastAPI, Claude and OpenAI Agents SDK. - Semantic search pipelines using vector db(FAISS and Qdrant), Graph DB(Neo4j), enabling Retrieval-Augmented Generation (RAG) for high-relevance contextual responses. Voice agent platform(RetellAI). - Built custom AI agents with tool usage and memory, orchestrated using LangChain /Langgraph / Agentic frameworks(CrewAI) for multi-step automation tasks and N8N AI workflow automation. - Seamlessly integrated AI assistants into Business Process Management (BPM) workflows (e.g., Camunda) to optimize decision making and automate repetitive user interactions. - Automated agentic workflows for tasks like retrieve incident status, details, cancellation requrest, get incident details via email, create incident, text summarization for form fields, document summarization, incident triage, ticket classification, and knowledge base augmentation. -Auto email responder using, email notifications, whatsapp notifications, SMS, telegram notifications using multi agents workflows. ✅ Business Process Automation - Camunda 7 / Camunda 8 (Zeebe) / Flowable / JBPM / Activiti BPM - Process modeling (BPMN), DMN, and custom workflow engines - Drools, Zen(GoRules) rule engine and complex decision automation ✅ Backend & Microservices Development - Java (Spring Boot, Spring Security, JPA, Hibernate) - Python (FastAPI) for high-performance APIs and AI integrations - RESTful API design, OAuth2, JWT, Keycloak-based security ✅ ETL Tools - Apache NiFi - Apache Airflow ✅ DevOps & Cloud Deployments - Docker, Kubernetes (EKS, ECS) - CI/CD with Jenkins, GitHub Actions - AWS (EC2, S3, Lambda, CloudWatch, API Gateway etc.) ✅ Integrations & Messaging - Apache Kafka (Confluent), RabbitMQ, Apache Camel - Elasticsearch, Apache Solr, Lucene for advanced search - Payment gateways: Stripe, Razorpay, PayPal, Moneris ✅ Frontend Capability (with expert UI/UX team) - Angular, ReactJS, NodeJS - PSD/XD to responsive HTML, Tailwind, Material UI 🎓 Corporate Trainings & Mentorship I offer professional training programs (remote/onsite) on: - Camunda 7 / Camunda 8 (Zeebe) - Flowable / Activiti / JBPM - Elasticsearch ✅ Why Clients Work With Me - Deep domain knowledge in AI + BPM + Microservices - Strong architecture, documentation & code quality - Proven track record delivering enterprise-grade systems - Ability to lead full project lifecycle — from POC to production 💬 Let’s connect and discuss how I can automate and optimize your business with smart workflows, secure APIs, and cloud-native systems.

  • Apache Solr
  • Apache Kafka
  • Business Process Model & Notation
  • Microservice
  • Spring Security
  • RabbitMQ
  • Elasticsearch
  • Angular
  • Drools
  • Amazon Web Services
  • Node.js
  • jBPM
  • Spring Boot
Vikas P.

Anand, India

$30/hr
5.0
49 jobs

✅ Spring, Spring Boot, Spring Cloud, Spring Security ✅ AI/ML Tools: TensorFlow, PyTorch, scikit-learn, OpenAI, LangChain ✅ Hibernate, JPA, JDBC ✅ PostgreSQL, Oracle, MySql, MongoDB, Flyway, Liquibase, Redis, Athena, Hazelcast ✅ REST API, SOAP, gRPC, GraphQL ✅ Kafka, RabbitMQ, ActiveMQ, Artemis, AWS SQS ✅ Keycloak, Apache Camel ✅ Microservices architecture: API Gateway, Service discovery (kubernetes), configuration, etc. ✅AWS Services ✅Kubernetes, Docker ✅Elastic Search, Apache Solr ✅Angular, ReactJS ✅Kotlin ✅Apache POI I am a Java professional with 11 years of experience. I have strong understanding and knowledge of the object-oriented approach, software engineering principles, and concepts. I have an incredible attention to detail and perseverance in getting the job done, and done it well. Over the last few years, I have built many AI systems across industries. - Real production systems with users, revenue, workflows, and business impact. We specialize in building AI systems that are: → Enterprise-grade → Multi-tenant → Scalable → Secure → Integrated into real business operations → Built for ROI, not experimentation

  • Apache Solr
  • Docker
  • Apache Kafka
  • Java
  • Apache ActiveMQ
  • Hibernate
  • Elasticsearch
  • Spring Framework
  • Spring Security
  • Spring Boot
  • Kotlin
  • Angular
  • REST API
  • AWS Development
  • Kubernetes
  • AI Agent Development
  • AI Development
  • AI App Development
Neeraj Kumar M.

Noida, India

$10/hr
5.0
14 jobs

I help startups and businesses build scalable SaaS applications, dashboards, and web platforms using Angular, React,NextJs,NodeJs ✮ Top Rated Freelancer(among Top 3%) on upwork ✮ 12+ years in IT ✮ Worked with several Fortune 500 Companies ✮ Experienced Full Stack Developer ✮ Worked with British Telecom, Cisco, Cognizant,IBM, etc. ✮ 100% refund policy. ✮ Available 18 hours a day. Prior to this I have worked as a full stack developer with several fortunes 500 companies which include British Telecom, Cognizant, Wipro, IBM before start my own freelancing work. Having more than 12+ years rich knowledge in IT and handled multiple live projects I can guarantee that I will add value to your projects. If I can’t deliver anything I won’t charge for my time, and in this world nobody wants to work for free. [ What I can provide ] ✮ Angular Development ✮ Node JS Development ✮ Python Development ✮ React JS Full Stack Developer ✮ React Native Full Stack Developer ✮ Express JS / Sails JS ✮ Vue JS ✮ TypeScript ✮ AngularDart ✮ Dart ✮ Mobile App ✮ IOS Development ✮ Android Development ✮ Swift 4 ✮ Java 8 ✮ Objective C ✮ Google Kotlin ✮ React Native ✮ Google Flutter ✮ E-commerce Development ✮ Magento Development ✮ Website development ✮ Mobile Back end development ✮ Graphic design + UI & UX implementation ✮ Consulting in mobile app development ✮ Full Stack Development ⚙️ Tech Stack (Only What Matters) Mobile Application Development: We develop hybrid / cross-platform mobile applications using React Native CLI / EXPO, REDUX, and Flutter / Dart. PWA/progressive web application (React.js). Web Application Development: Full-Stack Development, Front-End Development, Back-End Development. MVP Development. SaaS development, Multitenancy Product Development. E-commerce & Social Media Websites. Front End Development: TypeScript, React.js, React remix, vite.js, Next.js, Vue.js, Nuxt.js, Tailwind CSS,Full Stack Developer Back-end Development: Java,Springboot,microservices,kafka,Python (Django / flask / FastAPI), PHP (CodeIgniter / Laravel), Node.js (typescript), Express.js, Nest.js, fastify, Stripe Also I am comfortable with Analytical information or Search engine development. Here is my informations below, ✮ Apache Solr Search ✮ Amazon Elastic Search ✮ Amazon Red Shift ✮ Kibana ✮ Lucene ✮ Sphinx ✮ Xapian [ My Domain Experience ] ✮ On-Demand Service app ✮ SAAS ✮ Uber-like app ✮ Food delivery website and app ✮ Restaurant website and app ✮ Travel website and app ✮ Social network website and app ✮ Upwork like service marketplace website and app. ✮ Crowdfunding website and app ✮ Service provider finder app ✮ GPS apps ✮ Product selling website and app ✮ Event ticket-selling website ✮ Daily Deal website and app ✮ E-commerce website and app ✮Full Stack Developer 🤝 Let’s Work Together If you’re looking for: A reliable long-term full stack developer Someone who understands business, not just code Fast execution with scalable architecture 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Full Stack Developer | Full Stack | Mobile App Full Stack Developer | SaaS Application Development | Full Stack SaaS Developer | MERN Full Stack developer | MEAN Stack developer | Full Stack Developer React Node | React Full Stack Developer| Node Full Stack Developer | Next.js full stack developer | MongoDB full stack developer| REST API Full Stack Developer | JAVA Full Stack Developer| SPRINGBOOT Full Stack Developer| MICROSERVICES full stack Developer|Kafka full stack developer|Angular Full Stack Developer| React Developer | Node.js Full Stack Developer| React Node | Backend nodejs Full Stack Developer| node.js full stack developer | Full Stack MERN | MERN MEAN full stack developer| MERN developer | MERN stack | MEAN developer | .NET developer | .NET core | Full Stack .NET Developer | Azure Full Stack Developer | AWS Full Stack Developer| Google Cloud | REST API Full Stack Developer| Laraval|PHP|Nextjs Full Stack Developer developer | Full Stack Developer | Web Developer | API Developer | .NET Angular | Microservices | Multi-Tenant SaaS | DevOps | .NET Framework | Saas | Full Stack React Developer | Full Stack Node.js Developer | Full Stack Angular Developer | CI/CD | Full Stack Development | Web Application Development | mern Full Stack Developer | mean Full Stack Developer | .net Full Stack Developer | SaaS Expert | React Full Stack Developer | Node Full Stack Developer | Angular Full Stack Developer | mern Stack Developer | Saas Expert| Full Stack Developer | Python Full Stack Developer| React Full Stack Developer|React native full stack developer| Node Full Stack Developer| Java Full Stack Developer| Angular Full Stack Developer|MERN Full Stack Developer| React Full Stack Developer| React Native Full Stack Developer| Java full stack developer| NodeJS Full Stack Developer|.net developer |Full Stack Developer| Full Stack Developer | Full Stack Developer| React Full Stack Developer and AI| React Full Stack Developer | NodeJS Full Stack Developer | NextJs Full Stack

  • Angular
  • React
  • React Native
  • Vue.js
  • Next.js
  • JavaScript
  • Bootstrap
  • Node.js
  • Java
  • Spring Boot
  • Microservice
  • Apache Kafka
  • Mobile App
  • Artificial Intelligence
  • Machine Learning
  • Python
  • PHP
  • Laravel
Rajat J.

Delhi, India

$40/hr
4.8
36 jobs

✅ 5 Star, Top Rated Developer at Upwork ✅ 100% Job Success and 100% Client Satisfaction ✅ 100+ hours of work history on Upwork ✅ 12 Years of experience in Elasticsearch, Kibana (ELK stack configuration, setup, optimization, etc) ✅ Expert in MYSQL (configuration, setup, optimization) ✅ Experience in developing Websites / Desktop applications ✅ Expert in PHP / Python / MVC / Javascript / HTML / JQuery / CSS / CI-CD / DevOps ✅ Expert in AWS EC2 / RDS / S3 / DynamoDB / Cloudwatch etc ✅ Expert in Webscraping

  • Apache Solr
  • Python
  • PHP
  • Moodle
  • Django
  • Laravel
  • Elasticsearch
  • MySQL
  • MySQL Programming
  • API Development
  • AWS Lambda
  • Cloud Application
  • Database Administration
  • DevOps
  • Query Optimization
  • Database Optimization
  • Installation Art
  • Full-Text Search
  • Natural Language Processing
Anubhav O.

Mumbai, India

$25/hr
5.0
10 jobs

AWS DevOps Engineer | Claude Code Expert | Terraform | CI/CD | Cloud Automation ✅ AWS Certified Solutions Architect – Associate ✅ AWS Certified Developer ✅ 5+ Years of Hands-on AWS & DevOps Engineering Are you looking for a DevOps Engineer who doesn't just build cloud infrastructure — but ships it faster using the latest AI-agentic tools? I combine deep AWS expertise with Claude Code to deliver production-ready systems in less time, with fewer bugs, and cleaner code. I help startups and enterprises automate deployments, optimize cloud costs, and build scalable serverless architectures — all while keeping security and maintainability top of mind. 🔧 Core Delivery: - Infrastructure as Code – Terraform, CloudFormation, Serverless Framework - CI/CD Pipelines – GitHub Actions, AWS CodePipeline, Jenkins - Cloud Architecture – VPCs, EC2, RDS, IAM, Lambda, S3, ECS, EKS - Containers & Serverless – Docker, ECR, ECS Fargate, Lambda/API Gateway - Data Pipelines – AWS Glue, PySpark, DynamoDB, S3, Snowflake - Monitoring & Ops – CloudWatch, SNS, SQS, Alarms, Dashboards - Secure Multi-Account Setups – IAM Roles, Service Catalog, Landing Zones 🤖 Claude Code & AI-Augmented Engineering: - Agentic Refactoring – multi-file codebase changes executed by AI agents, reviewed and shipped by me - AI-Accelerated IaC – Terraform modules scaffolded, debugged, and optimized using Claude Code - Automated QA – test generation, bug tracing, and PR prep delegated to Claude Code agents - Plain-English to Production – non-technical founders describe the outcome; I architect and ship it using Claude Code 🏆 Key Highlights: - Migrated 5.5M+ customer records into DynamoDB with zero data loss using AWS Glue PySpark in a live fintech platform - Reduced deployment time by 65% with automated CI/CD workflows - Built serverless ingestion APIs handling 3.6 Millions + records with SQS, Lambda, and DynamoDB in production - Deployed and maintained infrastructure across multi-account AWS environments (PPE + PROD) using Terraform - 100% Job Success Score on Upwork — on-time, every time Let's build cloud infrastructure that's fast, secure, and AI-accelerated. Available to start immediately — let's connect!

  • Python
  • OpenAI API
  • API Development
  • AWS Lambda
  • Terraform
  • Automation
  • SQL
  • API
  • Amazon EC2
  • Amazon ECS
  • AWS CloudFormation
  • AWS Glue
  • Amazon API Gateway
  • Amazon RDS
  • Claude
  • AI Security
  • DevOps Engineering
Arnav G.

Bathinda, India

$66/hr
4.8
14 jobs

I architect and build autonomous AI agent systems -- not chatbot wrappers, but production multi-agent pipelines with real-time orchestration, serving paying customers. Most recently as Co-Founder of Oracia.ai: built a system reaching $10-15K MRR serving 100+ realtors across US and Brazil, processing 1.5M messages in 90 days at sub-200ms. Selected for Web Summit Rio 2026 ALPHA Programme. The architecture: → 9 LangGraph state machines running on a single Cloudflare Worker → Custom parallel branch convergence with graph pause/resume on a stateless runtime → 6-stage message validation pipeline (draft → fact-check → compliance → template selection) → Multi-modal processing at edge: Deepgram STT, Gemini vision/video, OpenAI embeddings → 20+ Cloudflare primitives composed together (5 Durable Objects, 9 KV namespaces, 2 Vectorize indexes, 5 Queues) → Real-time dual-channel delivery via WebSocket + SSE I also fine-tune LLMs — LoRA/QLoRA adapters on Gemini 12B and LLaMA with custom Python training scripts. What I build for clients: • Autonomous AI agents and multi-agent workflows (LangGraph, OpenAI Agents SDK, ReAct loops) • Production LLM pipelines with tool-calling, RAG, and vector search • Edge-first backends on Cloudflare Workers (Durable Objects, Queues, Vectorize, KV, R2) • Full-stack applications with Next.js 15 (React 19), Prisma, Stripe, Clerk • Real-time systems (WebSocket, SSE, WebRTC SFU/MCU architectures) I work US hours from India. Let's build something hard.

  • TypeScript
  • Node.js
  • WebRTC
  • Websockets
  • LangChain
  • Cloudflare
  • Python
  • Retrieval Augmented Generation
  • OpenAI API
  • Distributed Computing
  • Redis
  • PostgreSQL
  • LoRa
  • Supervised Learning
  • Reinforcement Learning

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