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Arvind K.

4,9

6,9

96%

Delhi, India

$25 USD por hora

Hi, I'm Arvind Kushwah, a Senior Full-Stack Web & Mobile Developer with 12+ years of experience building scalable applications, SaaS platforms, APIs, mobile apps, and cloud-based solutions. I specialize in transforming ideas into high-quality products with clean architecture, maintainable code, and excellent user experiences. Technical Expertise Backend Development • Ruby on Rails • Sinatra • Python (Django, Flask) • Node.js • RESTful APIs • GraphQL • Sidekiq • RSpec & Automated Testing Frontend Development • React.js • React Native • Angular • JavaScript (ES6+) • TypeScript • Redux • HTML5 • CSS3 • Bootstrap • Tailwind CSS • jQuery Mobile Development • React Native • Cross-platform iOS & Android Applications • API Integrations • Push Notifications • App Store & Play Store Deployments Databases • PostgreSQL • MySQL • SQLite • MongoDB • DynamoDB • Redis Cloud & DevOps • AWS (EC2, S3, RDS, Lambda, CloudFront) • Docker • CI/CD Pipelines • GitHub Actions • Nginx • DigitalOcean • Linux Server Administration Tools & Platforms • GitHub • GitLab • Bitbucket • Jira • Trello • Agile Development Why Work With Me? ✓ 12+ Years of Professional Experience ✓ Master's Degree in Computer Science ✓ Successfully Delivered 50+ Projects ✓ Strong Communication & Fluent English ✓ Clean, Maintainable & Scalable Code ✓ Reliable, Responsive & Deadline-Oriented ✓ Long-Term Project Support ✓ Available Across Multiple Time Zones Whether you need a complete SaaS platform, custom web application, API development, mobile app, cloud infrastructure setup, or ongoing maintenance, I can help bring your project to life. Let's discuss your requirements and build something great together.

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Apache Solr Website Design Web Security Ruby on Rails Social Engine

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Susheel K.

5,0

2,5

92%

Holagarh, India

$10 USD por hora

We promise to improve your organisation’s profit and efficiency through our strategic thinking, top designers, extraordinary programmers, personal attention, and competitive prices. We work securely and confidentially and promise to help you achieve your goals. I have working experience with Database Administration, MS SQL Server, and SQL. Thank you in advance for your time and consideration.

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Apache Solr PHP Mobile App Development Android SQL

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Amitesh O.

4,9

457

7,5

100%

Basti, India

$40 USD por hora

Certified Server & Cloud Architect with 15+ years of strong hands-on experience in designing, managing and optimizing IT infrastructure across multi-cloud environments. Expert in AWS, Oracle Cloud (OCI), Azure, Google Cloud, DigitalOcean along with Linux, UNIX, Windows, VMware and OpenStack. Strong experience in Oracle Apps, databases and enterprise IT services. Certified AWS Cloud Architect Professional and Generative AI certified for AWS and Oracle Cloud (OCI), with hands-on experience in AI model deployment, cloud-based AI infrastructure, automation using AI tools and integrating AI services with cloud platforms. Strong experience in application development and production-ready deployments including eCommerce platforms (Magento, WooCommerce, Shopify etc), WordPress, PHP-based applications and custom web solutions. Specialized in end-to-end setup from development to production, including CI/CD pipelines, scaling, security hardening and high availability architecture. Expert in Cloudflare setup, CDN configuration, WAF implementation, firewall security and protection against DDoS and web attacks. Strong experience in production-grade email server setup and deliverability including DKIM, DMARC, SPF, RBL, spam filtering and secure mail flow configuration. Expert in cloud architecture, setup, configuration and high-level infrastructure design for scalable and secure environments. Strong expertise in IT cost optimization, improving performance, reducing cloud billing and ensuring best utilization of resources. Expert in troubleshooting live production issues, server failures and cloud problems with proper RCA and quick resolution. Extensive experience in migrations including servers (Linux/Unix/Windows), websites, applications, databases (Oracle, MySQL, PostgreSQL, MongoDB) and mail systems like Zimbra, Exchange, Office 365, cPanel, Plesk and more. Experienced in network security, firewall setup, vulnerability assessment and securing infrastructure against cyber threats. Hands-on experience with DevOps tools like Jenkins, Terraform, Ansible, Prometheus and Grafana for automation and monitoring. Strong experience with hosting panels like cPanel/WHM, Plesk, DirectAdmin, ISPConfig, Webmin, Virtualmin and others. Worked on monitoring and management tools like Nagios, Cacti, Zenoss and other enterprise solutions. Certified RHCE, RHCSA, RHCVA, OpenStack, Oracle Cloud (OCI) Professional and Mirantis Cloud certified. Expert in Active Directory, Microsoft Exchange and Windows server environment setup, migration and management. I believe in delivering reliable, scalable and production-ready solutions with strong security and proactive support. AS AN ENGINEER, I BELIEVE NOTHING IS IMPOSSIBLE TO IMPLEMENT. In addition to this, I look forward to working on your projects in your budget.

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Apache Solr PHP Perl Java Website Design

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Sumit M.

5,0

192

6,1

100%

SRIGANGANAGAR, India

$15 USD por hora

11+ years experience, Excellent skills and experiences in managing servers and core IT infrastructure for small and medium sized organizations. We provide security, server administration and disaster prevention, Web-based and regular Email messaging solutions, and business-critical IT infrastructure. WEB HOSTING EXPERTISE:- WHM/Cpanel, Website Panel, Plesk Panel, Zpanel, Direct admin, ipconfig panel, Virtual min, SSL Installation, NGINX & Apache Setup & Manage all type of servers (Dedicated, VPS, Shared), Server Security & Monitoring, Backup Management, Backup Server Migration LINUX:- RedHat, Fedora, CentOS, Ubuntu / Debian CLOUD SERVICES:- setup & management..... AWS administration, Google cloud, Linode: Virtualization technologies:- Open VZ, Virtuozzo, Hyper v, Vmware, Xen APPLICATIONS:- SMTPQmail, Sendmail, Postfix, Power MTA (PMTA), INTERSPIRE Domain Keys/DKIM,opendkim, dkim Aniti Spam/Anti Virus POP/IMAP

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Apache Solr PHP Script Install Internet Marketing System Admin

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AIS Technolabs Pvt Ltd

4,8

172

10,0

98%

Ahmedabad, India

$20 USD por hora

✨ Welcome to Our Profile!✨ AIS Technolabs is a leading developer of: ❖ Mobile Applications (Native & Hybrid) ❖ Multi-player Games (Unity 3D, Unreal Engine 5) ❖ Responsive Websites (Open Source, HTML, CSS, JavaScript) ❖ Advanced Solutions in IoT, VR, and AR ✅ Since 2010, we've successfully completed 3200+ projects and built an impressive portfolio that continues to grow. Specialties ✨ We excel in a diverse range of technical expertise—from a simple HTML page to robust Enterprise Solutions. ✅ Website Development: - Front-End: HTML, CSS, JavaScript, Angular.js, React.js, jQuery, SASS - Back-End: PHP, C++, Java, Python, Node.js, Express.js, Django, Ruby on Rails, Laravel, Spring ✅ Mobile App Development: - iOS/Android Apps (Java, Swift) - Cross-Platform Apps (React Native, Ionic App) ✅ Game Development: - Unity3D, Unreal Engine 5 ✅ IoT, Virtual Reality (VR), and Augmented Reality (AR): - Cutting-edge solutions tailored for innovative and immersive experiences ✅ Blockchain & Cryptocurrency Solutions: - Custom Cryptocurrency Development - Cryptocurrency Wallets - Exchange Applications ✅ Worked With Blockchain Leaders: - Tron, Binance Chain, and Ether Chains Successful Projects Completed ★ Games: - RPG, FPS, Casino, Slot Machine, Crash Game, Jackpot, Roulette, Poker, Coinflip, NFT, Sports Betting, Ludo, Card Game, Action, Adventure, Arcade, Shooting, Bingo, Dice, Lottery, Cricket, Racing, Soccer ★ Apps: - Flight Booking, Hotel Booking, Social Media, Dating, Taxi, Live Streaming, IPTV, Money Transfer, Food Delivery, Courier, Chat, Auction, Trading, Booking, Fintech, Finance, Productivity, etc. ★ Software: - ERP, CRM, Project Management, HR Management, Fleet Management, Employee Management, Vendor Management, Inventory Management, Task Management, Staff Management ★ Websites: - Dating, Social Media, Real Estate, eCommerce, Construction, Bakery, Informative, Blog, Business, Corporate ✱ Why Choose Us? We aim to build long-term relationships with our clients. Your satisfaction is our mission! We are just a click away to assist you!

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Apache Solr PHP ASP C Programming Java

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Hammadhassan21

4,9

165

8,0

95%

Karachi, Pakistan

$15 USD por hora

I help startups and businesses turn their ideas into scalable web and mobile products. Instead of just writing code, I work as a long-term technology partner helping you plan, build, and launch products that are stable, scalable, and ready for growth. Over the past 8+ years, I have delivered 200+ projects including SaaS platforms, mobile apps, and high-performance web systems. What I can help you with: - MVP development for startups - Scalable web applications (Laravel, Node, React) - Mobile apps (Android & iOS) - Ecommerce platforms and payment integrations - UI/UX focused product development My approach is simple: Clear planning, clean architecture, and reliable execution. If you're looking for someone who understands both business and technology I’d be happy to discuss your project.

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Alessandro M.

4,8

156

6,7

99%

caxias do sul, Brazil

$30 USD por hora

8+ years experience in managing Linux servers. (firewall, proxy, mail, vpn, etc). I'm probably the only freelancer here that will not bid using AI

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DataForge Analytics

4,8

156

7,7

93%

Lahore, Pakistan

$20 USD por hora

I help startups, enterprises, and growing businesses build secure, scalable, AI-powered software solutions—from modern web and mobile applications to cloud infrastructure, DevOps automation, and enterprise integrations. With 7+ years of experience and hundreds of successful projects delivered worldwide, I specialize in designing production-ready applications, cloud-native architectures, AI automation, and business systems that improve performance, security, and operational efficiency. Core Expertise • AI-Powered Applications & Automation (OpenAI, Claude, LangChain) • Full-Stack Development (Laravel, PHP, .NET, Node.js, React, Next.js, Vue) • Mobile App Development (Flutter, React Native, Android & iOS) • Cloud Infrastructure (AWS, Azure, Google Cloud Platform) • DevOps & CI/CD (Docker, Kubernetes, GitHub Actions, GitLab CI/CD) • REST APIs, GraphQL & Third-Party Integrations • Shopify, WordPress & Custom SaaS Development • Microservices & Enterprise Software Architecture • Database Design (MySQL, PostgreSQL, MongoDB, Redis) • Google Workspace, Microsoft 365 & Zoho Email Migrations • Email Deliverability & DNS (SPF, DKIM, DMARC, BIMI, Cloudflare) • Server Administration (Linux, Windows, Apache, Nginx) Why Clients Hire Me ✔ End-to-end software development—from idea to deployment ✔ AI integration for modern business applications ✔ Production-ready cloud infrastructure & DevOps automation ✔ Secure, scalable, and maintainable code ✔ Expert in complex email migrations and deliverability optimization ✔ Strong communication, fast turnaround, and long-term support Whether you need an AI-powered SaaS platform, enterprise web application, mobile app, cloud migration, DevOps automation, API integration, or secure email infrastructure, I deliver solutions built for reliability, scalability, and business growth. Let's build innovative software that scales with your business.

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Apache Solr PHP Perl ASP C Programming

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Adeel A.

5,0

155

9,6

98%

Karachi, Pakistan

$20 USD por hora

Trusted Freelancer with 10+ years of experience, 200+ successfully delivered projects, 19000+ work hours and going. I help founders and growing businesses solve operational bottlenecks and scale faster using AI and custom-built software systems. Recognition & Credibility 🏆 Awarded for AI innovation in Aquaculture at Aquacon Dubai by the U.S. Soy Export Council 🎓 Microsoft Certified Solution Developer (MCSD) Industries I Commonly Work With • AI-powered SaaS and automation platforms • Healthcare and digital health systems • Real estate and property technology • Education and training platforms • Marketplaces and data-driven products Core Expertise • AI-powered business automations • MVP to scalable product architecture • Workflow and process optimization • Enterprise-grade system design • AI/ML solutions (NLP, computer vision, predictive analytics) Technology Stack • .NET (C#, ASP.NET Core, MAUI, SharePoint) • Python (AI/ML, automation, computer vision) • Node.js & React • Cloud-ready, scalable architectures • N8N, Make.com, GoHighlevel How I Work with Clients ✔ Business-first mindset (not just code-first) ✔ Focus on measurable outcomes ✔ Long-term technical partnership approach ✔ Honest timelines, clear communication If you're looking to Automate operations or build scalable digital systems, you're in the right place.

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Cómo contratar a un excelente Apache Solr Developer freelance

An Apache Solr developer is a search engineering specialist who designs, configures, and optimizes Solr-powered search platforms to deliver fast, relevant, and scalable full-text search across websites, applications, and enterprise data. Built on Apache Lucene, Solr powers product search, document discovery, log analytics, and recommendation features for businesses that depend on retrieving the right information in milliseconds.

What an Apache Solr developer delivers

Hiring an Apache Solr developer means bringing in a search engineer who can translate raw data into a queryable index that ranks results by relevance, supports faceting, and scales under production traffic. The commercial value is direct: better search relevance increases conversion on e-commerce stores, reduces support costs on knowledge bases, and shortens time-to-insight on internal data platforms.

A skilled Solr consultant handles the full search lifecycle, from schema design and data ingestion to query tuning, monitoring, and SolrCloud cluster operations. They work closely with backend engineers, data teams, and product owners to make sure the search experience reflects how users actually look for content.

Core services and deliverables

Apache Solr experts cover a wide range of search engineering tasks. Common deliverables include:

Schema design using managed-schema or schema.xml, including field types, analyzers, tokenizers, and copy fields

Index configuration with solrconfig.xml, request handlers, update processors, and caching strategies

Data ingestion pipelines using the Data Import Handler (DIH), SolrJ, post tool, or custom connectors from databases, APIs, and file systems

Query development with the standard, DisMax, and eDisMax query parsers, including boosting, phrase slop, and function queries

Faceted search, highlighting, spellcheck, autocomplete (suggester), and "more like this" implementations

Relevance tuning with custom similarity classes, learning-to-rank (LTR), and synonym, stopword, and stemming configuration

SolrCloud deployment with ZooKeeper, sharding, replication, and collection management

Performance tuning, JVM heap sizing, garbage collection analysis, and query latency profiling

Security setup including authentication, authorization, SSL, and document-level access control

Migration from older Solr versions or from other Lucene-based engines, plus integration with Apache Tika for rich document indexing

Tools and technologies a Solr developer works with

Beyond Solr itself, expect strong working knowledge of the broader search and data ecosystem:

Apache Lucene internals, inverted indexes, and analyzer chains

Apache ZooKeeper for SolrCloud coordination

SolrJ, PySolr, and REST-based clients for application integration

Java, with secondary languages including Python, PHP, Node.js, or Ruby for client-side integration

Apache Tika, Nutch, and Kafka for ingestion and crawling pipelines

Docker, Kubernetes, and Helm charts for containerized Solr deployments

Monitoring stacks such as Prometheus, Grafana, and the Solr Admin UI metrics endpoints

SQL and NoSQL databases as upstream data sources

Industries and use cases

Apache Solr is used wherever search performance and relevance matter at scale. Typical engagements include:

E-commerce product search with faceting, filtering, and personalized boosting

Media and publishing platforms indexing articles, video metadata, and archives

Enterprise knowledge bases, document management, and intranet search

Legal and research platforms searching contracts, case law, and academic papers

Job boards, real estate listings, and classifieds with geospatial search

Log and event analytics where Solr serves as the indexing backend

Healthcare and government portals requiring secure, auditable document retrieval

How to evaluate Apache Solr candidates

Strong Solr developers usually have a Java or backend engineering background with hands-on production experience running SolrCloud clusters. Look for portfolio evidence such as documented schema designs, before/after relevance metrics, query latency improvements, or open source contributions to Lucene/Solr. Familiarity with Elasticsearch is a useful signal of broader search literacy, since the underlying Lucene concepts overlap.

When interviewing shortlisted candidates, consider asking:

How would you design a schema for a multilingual product catalog with faceted navigation?

Walk me through how you would diagnose a Solr query that suddenly became slow in production.

What is the difference between DisMax and eDisMax, and when would you reach for function queries or learning-to-rank?

How do you configure a SolrCloud cluster for high availability, and how does ZooKeeper fit into that?

Describe a time you improved search relevance. What signals did you tune, and how did you measure the result?

Ask for sample solrconfig.xml and schema files, query examples, and any relevance evaluation reports. A confident Solr consultant should be able to explain trade-offs between recall, precision, and latency in plain terms.

Why hire Apache Solr developers on Freelancer.com

Freelancer.com gives you access to a global pool of Apache Solr developers, search engineers, and Lucene specialists across every time zone. You can compare profiles, portfolios, ratings, and verified reviews in one place, and post a project on Freelancer.com to receive competitive bids from freelancers who match your stack and budget. Whether you need a one-off relevance tuning sprint, a SolrCloud migration, or an ongoing search engineering partner, the marketplace scale on Freelancer.com makes it straightforward to find vetted talent quickly.

Ready to improve search relevance, scale your index, or migrate to SolrCloud? Post a project on Freelancer.com today and connect with skilled Apache Solr developers ready to deliver.

What are the steps to hiring a freelance Apache Solr developer?

Hiring an Apache Solr developer works best when you treat search as an engineering project with clear data, queries, and relevance goals. The process below walks through writing a brief, comparing bids, and selecting the right specialist for your indexing and search needs.

Step 1: Post your project on Freelancer.com

Your project brief is the single biggest factor in the quality of bids you receive. A clear Solr brief filters out generic backend developers and attracts engineers who have actually shipped Lucene-based search in production. Head to the post project page , fill in the brief, scope, timeline, and budget, then publish the project for freelancers to bid on.

Type and volume of data to be indexed (products, documents, logs, multilingual content) and approximate record counts

Current Solr version, deployment mode (standalone or SolrCloud), and hosting environment such as on-premise, AWS, or Kubernetes

Required features: faceting, autocomplete, geospatial, learning-to-rank, highlighting, or multilingual analyzers

Integration points including upstream databases, message queues, application frameworks, and authentication systems

Performance targets for query latency, indexing throughput, and uptime, plus any compliance or security requirements

Timeline, milestones, and budget range so bidders can propose realistic scopes

Step 2: Review bids from freelancers

Bids are short proposals, not just price quotes. A strong Solr proposal shows that the freelancer has read your brief, understands your data, and has a defensible approach to schema design, query parsing, and relevance. Read carefully and shortlist candidates whose technical reasoning matches the work.

Clarity on proposed schema design, analyzer choices, and query parser strategy

Relevant clarifying questions about data structure, traffic patterns, or relevance signals

Realistic timeline broken into phases such as schema, ingestion, query tuning, and load testing

Specific references to Solr features and tools they plan to use, including SolrCloud, ZooKeeper, DIH, or LTR

Sample work attached, such as past schema files, relevance reports, or anonymized client search projects

Use Freelancer.com chat to ask follow-up questions about their approach before shortlisting

Step 3: Evaluate freelancers and award the project

The final decision combines proposal quality with profile evidence. For Apache Solr work, consistency matters more than a single flashy project, since search systems require disciplined configuration and long-term thinking about relevance and performance. Review each shortlisted profile carefully before awarding.

Portfolio depth across multiple Solr or Lucene projects, ideally in industries similar to yours

Star ratings and the volume of completed projects on the platform

Written client reviews mentioning relevance improvements, uptime, or successful migrations

Verified payment method, identity verification, and any displayed Java or search-related skill exam results

Completion rate and on-time delivery rate as signals of reliability on longer engagements

Award the project and use Freelancer.com Milestone Payments to release funds as schema, ingestion, and query tuning deliverables are accepted

How long does an Apache Solr project typically take?

A focused engagement such as relevance tuning or schema refactoring can take one to three weeks, while a full SolrCloud deployment with custom ingestion pipelines and security usually runs longer. Timelines depend on data volume, integration complexity, and how clearly the relevance requirements are defined upfront.

What is the difference between Apache Solr and Elasticsearch?

Both are built on Apache Lucene and offer full-text search, faceting, and distributed indexing, but they differ in configuration model, clustering, and ecosystem tooling. Solr is often preferred for traditional enterprise search and document-heavy use cases, while Elasticsearch is common in log analytics. A skilled search engineer can advise on the right choice for your workload.

Can I hire an Apache Solr freelancer for a one-off project?

Yes. Many Solr engagements are scoped as discrete projects, such as a relevance audit, an upgrade between major Solr versions, or building a search API for a new application. You can hire on Freelancer.com for short fixed-scope work and extend the engagement if you need ongoing optimization.

Do I need an Apache Solr developer or a full-stack search engineer?

If your project is purely backend indexing and query tuning, a dedicated Solr developer is enough. If you also need frontend search UI, autocomplete widgets, or analytics dashboards, look for a freelancer who combines Solr expertise with frontend or data engineering skills, or assemble a small team.

What information should I share before the project starts?

Provide sample data, current schema and config files if they exist, query examples, expected traffic volumes, and the business goals for search such as conversion lift or query latency targets. The more context you share, the more accurately a Solr consultant can scope and price the work.