Hire the Best Apache Solr Developers

Clients rate our Apache Solr Developers
Rating is 4.7 out of 5.
4.7/5
Based on 106 client reviews
Son V.

Hanoi, Vietnam

$25/hr
4.8
32 jobs

Hello there! I'm Son, a highly skilled Full-Stack Drupal Developer, and I'm excited to collaborate with you on your next web project. With extensive experience and expertise in Drupal, I am fully equipped to turn your ideas into powerful, feature-rich web solutions. Why Choose Me? As your dedicated Drupal expert, I offer a unique blend of skills and a strong commitment to delivering top-notch results: Drupal Mastery: With a profound understanding of Drupal 7, 8, 9, and 10, I can create custom modules, themes, and plugins tailored to meet your specific requirements. User-Centric Approach: I prioritize creating engaging user experiences by ensuring responsive design, intuitive navigation, and captivating interfaces that leave a lasting impression. Agile Collaboration: Proficient in Agile principles and methodologies, I thrive in collaborative environments and maintain open communication throughout the development process. Versatile Tech Stack: From PHP and MySQL to JavaScript, JQuery, and CSS3/HTML5, I leverage a diverse range of technologies to build dynamic and scalable web applications. Seamless Integration: Whether it's REST APIs, JSON, XML, or integrating with third-party services, I excel at incorporating functionalities seamlessly for a cohesive user journey. AWS and DevOps Proficiency: I possess valuable experience in AWS solutions and implement DevOps practices with Docker, Kubernetes, and Jenkins to ensure efficient deployment and continuous integration. Client-Centric Approach Your satisfaction and project success are my primary focus. I take the time to understand your unique needs, allowing me to tailor solutions that align perfectly with your business objectives. Throughout the project, I maintain clear communication, provide regular updates, and incorporate your valuable feedback to create the best possible outcome. Experience + Passion = Outstanding Results With a track record of excellence and a passion for web development, I bring an unparalleled level of dedication to every project. My expertise in Drupal and commitment to coding standards guarantee high-quality, robust, and scalable solutions. Let's Collaborate! I'm enthusiastic about bringing innovation and creativity to your web projects. Whether it's building a Drupal website from scratch, customizing themes, or resolving intricate challenges, I'm eager to help you achieve remarkable digital success. Let's work together to build something extraordinary! Feel free to reach out, and we can discuss your project requirements in detail. Looking forward to partnering with you on this exciting journey. Best regards, Son

  • Apache Solr
  • SCSS
  • Bootstrap
  • jQuery
  • HTML
  • Git
  • JavaScript
  • Docker
  • HTML5
  • CSS
  • Drupal
  • Redis
  • PHP
  • Twig
  • NGINX
Vakul R.

Dharamsala, India

$25/hr
4.8
15 jobs

🏆 Acquia-Certified Drupal Developer | 10+ Years Experience ✅ Top Rated | 100% Job Success | Open Source Contributor I help businesses maintain, upgrade, migrate, test, and improve complex Drupal websites — especially when the project involves legacy code, Acquia/ACSF, migrations, performance issues, integrations, automated testing, or difficult bugs that need senior-level ownership. I’m a Top Rated Drupal specialist with 10+ years of experience, 100% Job Success, 2,000+ Upwork hours, and hands-on experience across Drupal 7–10/11, Acquia Cloud, Acquia Site Factory, Acquia Search/Stax, custom modules, APIs, migrations, testing automation, and enterprise support. 🔧 Core Drupal Expertise ➡️ Custom module & theme development across Drupal 7, 8, 9, 10, and 11 ➡️ Complex migrations from Drupal 6/7/8 to Drupal 10/11 ➡️ Views Bulk Operations and batch-safe custom actions ➡️ Multisite and multilingual architecture ➡️ Decoupled/Headless Drupal with React ➡️ Upgrades to Drupal 10/11 and PHP 8.x compatibility ➡️ Composer workflows, caching, and performance optimization ➡️ PHPUnit test coverage including Kernel and Functional tests 🧪 Testing & Load Testing ➡️ Playwright automation for Drupal forms, workflows, and end-to-end testing ➡️ Automated testing for multi-step Drupal Webforms and standalone applications ➡️ OTP-based flow testing, API-backed form testing, and user journey automation ➡️ ES6-based test scripting and browser automation ➡️ Load testing for Drupal and non-Drupal applications ➡️ Concurrent user testing for registration, submission, and API-driven workflows ➡️ Validation of API calls, data isolation, response times, and error handling under load ☁️ Cloud & DevOps Skills ➡️ Acquia Cloud, ACSF, Content Hub v1/v2 ➡️ Acquia Cohesion / Site Studio ➡️ CI/CD pipelines using Acquia, Platform.sh, Pantheon, Bitbucket, and GitLab ➡️ Git, Drush, BLT, Composer ➡️ Local development with Lando, Vagrant, and DDEV 🤖 AI & API Integration ➡️ Custom AI-driven chatbots and plugins ➡️ OpenAI, Hugging Face, AI Core, MCP ➡️ CRM and third-party API integrations ➡️ Workday, Taleo, HubSpot, Box API, and custom enterprise APIs 🎯 What You Can Expect ➡️ Modular, maintainable codebases ➡️ Efficient and validated migration scripts ➡️ Reliable automated testing setup ➡️ Performance-focused Drupal implementations ➡️ React-based headless implementations ➡️ Clean API integrations and debugging ➡️ Long-term ownership for complex Drupal projects 📌 Certifications & Community ➡️ Acquia Certified Drupal 9 Backend Specialist ➡️ Open-source contributor Let’s collaborate on custom development, complex migrations, automated testing, load testing, or long-term Drupal projects. I’m here to build something stable, scalable, and future-ready for you.

  • Apache Solr
  • PHPUnit
  • jQuery UI
  • React
  • JavaScript
  • PHP
  • Bug Fix
  • Drupal
  • Software Version Upgrade
  • MySQL
  • Artificial Intelligence
  • Ecommerce
  • Migration
  • System Installation & Upgrades
  • AI Chatbot
  • Testing
  • Claude
Bohdan A.

Lutsk, Ukraine

$40/hr
5.0
79 jobs

You will see the relevant (if needed technical) reply to your job, not my bio. Please view my proposals :) ✓ 𝗘𝘅𝗽𝗲𝗿𝘁-𝗩𝗲𝘁𝘁𝗲𝗱 𝗧𝗮𝗹𝗲𝗻𝘁 𝗦𝘁𝗮𝘁𝘂𝘀 (top 1% of Upwork) ✓ 18+ 𝗬𝗲𝗮𝗿𝘀 𝘄𝗶𝘁𝗵 𝗗𝗿𝘂𝗽𝗮𝗹 ✓ 𝗖𝗼𝗻𝘁𝗿𝗶𝗯𝘂𝘁𝗶𝗼𝗻𝘀 𝘁𝗼 𝗗𝗿𝘂𝗽𝗮𝗹 𝗰𝗼𝗿𝗲 Providing Drupal development services: ✓ Complex back- and front-end development ✓ Performance optimization ✓ Migration from older major Drupal versions (or non-Drupal) to up-to-date ones ✓ Audits and consultancies You see the big picture now. Invite me to your job if there is a fit! updated on Jul 09, 2026

  • Apache Solr
  • MySQL
  • jQuery
  • PHP
  • API Development
  • Docker
  • Drupal
  • Performance Optimization
  • Responsive Design
  • Web Development
  • Solution Architecture
  • Ecommerce Website Development
  • CMS Development
  • Full-Stack Development
  • Data Engineering
  • MySQL Programming
Bruno C.

Sao Paulo, Brazil

$40/hr
4.0
5 jobs

Senior Full Stack Developer with 8+ years of experience helping businesses build, scale, and optimize web platforms using Drupal, Wordpress, PHP, AI and modern web technologies. I specialize in delivering reliable, high-quality solutions — whether you need a custom module, plugin, theme, API integration, performance optimization, or a full website built from scratch. I’ve worked with companies and clients worldwide, handling everything from simple content websites to complex systems with external integrations. My focus is always on clean, maintainable code and solutions that actually solve business problems. I also have AI expertise, creating perfect solutions with AI tools. 🔧 What I can help you with: Drupal development (7, 8, 9, 10, 11) Wordpress development Custom modules, plugins & themes AI engineering API integrations (REST, external services) Performance optimization & debugging Full-stack development (front-end + back-end) Code review & QA 🚀 Tech stack: Drupal, Wordpress, PHP, Symfony, React, JavaScript, HTML, CSS, MySQL, Docker, Git, Composer, Drush, PHPUnit, Claude Code, AI, Copilot I’m reliable, communicative, and focused on delivering results on time. If you’re looking for someone who understands both the technical and business side of your project — let’s talk.

  • Apache Solr
  • Docker
  • Drupal
  • PHP
  • MySQL
  • HTML
  • Web Development
  • JavaScript
  • Front-End Development
  • Back-End Development
  • API Development
  • Symfony
  • PHPUnit
  • jQuery
  • Website
  • CMS Development
  • AJAX
  • WordPress
  • CSS
  • UX & UI
Prabin S.

Kathmandu, Nepal

$8/hr
5.0
11 jobs

I’ve successfully completed multiple projects on Upwork with 5-star⭐ ratings and positive client feedback. If you’re facing any kind of tech-related problem, I’m here to help. I'm a Full-Stack AI Software Engineer specializing in building modern web applications and AI-powered solutions. I develop scalable, production-ready software using Java, Spring Boot, React, PostgreSQL, MongoDB, Supabase, MySQL, while integrating the latest AI technologies such as LLMs, RAG (Retrieval-Augmented Generation), AI Agents, and workflow automation. Over the years, I have successfully designed and developed several full-stack and AI-powered applications, including: ✅Enterprise Multi-Tenant SaaS POS Application ✅Contractor Expert AI (RAG) ✅Expense Tracker ✅Food Delivery Web App ✅Smart Pharmacy Management System ✅Retail Billing Software ✅Trading Platform ✅Book Rental System ✅Hospital Management System Technical Skills ✅ Languages: Java, JavaScript, Python ✅ AI & LLMs: OpenAI API, Gemini API, LLM Integration, RAG (Retrieval-Augmented Generation), AI Agents, Prompt Engineering, Workflow Automation ✅ Frameworks: Spring Boot, Spring MVC, Hibernate, React, Tailwind CSS ✅ Web Services: RESTful APIs ✅ Databases: MySQL, PostgreSQL, MongoDB ✅ Tools: VS Code, IntelliJ, Eclipse, Postman, Git/GitHub ✅ Frontend: HTML5, CSS3, JavaScript ✅ Practices: Git-based version control, Agile methodology, automated testing I believe in clear, friendly communication to keep projects running smoothly and ensure we’re always aligned. Let’s chat about your project and see how I can help bring it to life! “Any fool can write code that a computer can understand. Good programmers write code that humans can understand.” – Martin Fowler

  • Java
  • Spring Boot
  • Spring Framework
  • REST API
  • PostgreSQL
  • MySQL
  • NoSQL Database
  • JavaScript
  • React
  • Hibernate
  • Java Persistence API
  • Agile Software Development
  • AWS Lambda
  • Git
  • Web Development
Adam N.

Bedford, Texas

$120/hr
5.0
2 jobs

I build AI-powered applications that ship to production and survive contact with real users. 𝟏𝟔 𝐲𝐞𝐚𝐫𝐬 of full-stack engineering, now focused on AI agents, RAG, and LLM integrations. I work on a .NET, React, and Angular foundation, which means I can also handle the parts that aren't glamorous: auth, deployment, databases, and a UI that doesn't make users cry. WHAT I BUILD ▸ AI Agents. Multi-step, tool-using agents that actually finish what you start them on. ▸ RAG Applications. Chat-with-your-docs, internal knowledge assistants, semantic search over private data. ▸ LLM Integrations. Adding GPT, Claude, Gemini, or open models into existing apps without breaking the rest of the codebase. ▸ Full-stack web apps. Angular or React on the front, .NET on the back, cloud-native on Azure or AWS. ▸ Legacy modernization. Moving 15-to-20-year-old codebases into the present. I've done this three times, including a beloved baseball simulator with millions of simulated games. STACK I WORK IN Backend: .NET 8, C#, ASP.NET Core, Entity Framework, Python, Go, Java Frontend: React, Angular, TypeScript, RxJS, Storybook, design systems AI: OpenAI, Anthropic Claude, Google Gemini, LangChain, vector databases, RAG pipelines, agent frameworks Data: SQL Server, Redis, MongoDB Cloud: Azure (Web Apps, Functions, SQL, Storage), AWS (Lambda, EKS), Terraform, Kubernetes Auth: JWT, OAuth, Auth0, ASP.NET Core Identity RECENT RESULTS ✓ Built and shipped a Google Gemini-powered AI system for automated outbound patient communications inside a physical therapy EMR platform, deployed across a network of rehabilitation hospitals and university health systems. ✓ Rebuilt a 20-year-old baseball simulation app (millions of simulated games, loyal user base) from classic ASP to .NET 8 and Angular on Azure. Improved 90-day user retention by over 10% and unlocked a new design system for the product team. ✓ Architected and shipped a multi-tenant SaaS platform for the event registration industry, migrating from on-prem data centers to Azure PaaS. Grew revenue 10% through direct client work and cut IT infrastructure spend by 40%. ✓ Led cloud architecture for a national crop insurance carrier across AWS and Azure. Set up Terraform-managed infrastructure, mentored a team of dev leads, and shipped a Figma-to-production design system bridging design, product, and engineering. WHAT A RECENT CLIENT SAID "I hired Adam specifically because of his wide variety of experience and his profound level of skill. Over 18 months he proved himself to be an active and helpful member of the team. His versatility and engagement was crucial to our growth. I would enthusiastically recommend him." — Jason, BaseHit HOW I WORK I show up, I listen, I write code that holds up under load. I'm comfortable being the senior voice in the room or the quiet pair of hands, whichever the project actually needs. I won't pretend to know something I don't, and I won't talk you into AI when a SQL query would do the job. If you're building something AI-powered and want someone who can also handle the unglamorous parts (the auth, the deployment, the schema, the UI that doesn't make users cry), let's talk.

  • AI App Development
  • OpenAI API
  • AI Agent Development
  • Retrieval Augmented Generation
  • Full-Stack Development
  • .NET Core
  • Artificial Intelligence
  • Large Language Model
  • React
  • Angular
  • C#
  • TypeScript
  • Java
  • Microsoft Azure
  • Vector Database
  • LangChain
  • Golang
  • Amazon Web Services
  • RESTful API
  • Python

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