Hire the Best Relational Databases Specialists in Kolkata, IN

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Shubhra Prakash N.

Kolkata, India

$40/hr
4.9
39 jobs

I have 17+ years of IT experience in the area Application Development, Systems Integration, Production Support, Application Maintenance and QA projects. I have played the role of Project Manager, Project Lead, Business Analyst, Developer and QA. I have managed complete SDLC for medium sized development projects. I have business domain knowledge in the area of Automotive on-board telematics and IT systems, Pharma Relationship Marketing, Manufacturing Execution Systems and Work and Asset Management. I have actively implemented LEAN practices in Production support projects. My technical skills in Database consultancy/administration/development are as follows 1. Design and development of relational and NoSQL databases (Mysql, Oracle, MongoDB). Production support of Mysql and MongoDB databases. 2. Migrating existing databases to Mysql, Oracle and MongoDB. 3. Configuring monitoring and alerts for database servers. 4. Develop business layer applications in PL/SQL / Mysql procedures and UNIX. 5. Setup and support Mysql HA database cluster in single primary or multi primary mode without changes to your data or tables. 6. Setup and support Mysql master-slave replication for backups and failover. 7. Automated Point-in-time recovery of Mysql databases. 8. Performance tune databases like Mysql and Oracle. My programming language skills include 1. PHP 2. C 3. PL/SQL 4. Mysql stored procedures 5. UNIX Shell scripting My technical skills in REST API/Web Services consultancy/development are as follows 1. Creating high performance, scabale, standards compliant and secure RESTful API for backend and business logic processing as microservices or in monolithic service architecture. My technical skills in System/Devops consultancy/administration are as follows 1. Create solution architecture for Cloud and On-Premise infrastructure based on free and open source software stack. 2. Containerize Mysql and other servers using Docker and/or LXC. 3. Deploying LXC containers to create extremely lightweight and tightly packed virtualized environments to isolate, secure and streamline your IT operations. Running LXC containers have near zero performance penalty. 4. Install and configure QEMU-KVM virtual machines with full inter VM and external networking support, 3D graphics acceleration for GUI based administration. 5. Performance tune and secure your LAMP/LEMP and other application stack. 6. Deploying directory servers like OpenLDAP, designing DIT, configuring LDAP access control, indexing, replication and single sign-on. 7. Setup in-memory databases like Memcached or a persistent in-memory database Mysql Memcached plugin for caching or sessions. 8. Setup and maintain secure Email servers using Postfix, Dovecot, Courier IMAP, maildrop, Spamassasin, ClamAV, milters, DKIM, SPF, DMARC and Roundcube webmail. 9. Maintenance and administration of Linux servers like setting up firewall, webservers, mail servers, ldap servers, imap servers, automating system admin tasks using shell scripts, applying security updates, install and uninstall of software packages. 10. Setup of Jenkins for CI/CD of complex project workflows. 11. VPN setup ( IKE/IPSec and OpenVPN )

  • Relational Database
  • Google Cloud Platform
  • Amazon Web Services
  • Solution Architecture
  • Web Services Development
  • High Availability and Disaster Recovery
  • Linux System Administration
  • MySQL
  • MongoDB
  • RESTful API
  • DevOps
  • PHP
  • NoSQL Database
  • Database Administration
  • SQLite
Nikhil S.

Kolkata, India

$15/hr
5.0
17 jobs

I specialize in high-performance ETL pipelines that transform complex datasets into fast, reliable Power BI dashboards with clear, decision-ready insights. My core strength is database performance optimization—from efficient ETL scripting and advanced SQL query tuning to smart indexing strategies—consistently delivering faster queries, reduced load times, and scalable data models. I design dashboards with well-aligned KPIs that cut through noise and help stakeholders make confident, data-driven decisions at a glance. Backed by certifications in SQL, Advanced Query Tuning, Snowflake, Python for Data Science, and Oracle SQL Performance Tuning, I deliver high-quality, performance-driven solutions tailored to business needs—turning data into speed, clarity, and impact.

  • PostgreSQL
  • Snowflake
  • Oracle
  • SQL
  • PostgreSQL Programming
  • Python
  • Microsoft SQL Server
  • Query Development
  • Performance Optimization
  • dbt
  • Database Optimization
  • ETL
  • Elasticsearch
  • Tableau
  • ETL Pipeline
Subrata G.

Kolkata, India

$20/hr
4.6
118 jobs

🏆 👨‍💻 Total 8+ years in the IT industry. 👋 Hi, Welcome to the profile of Full Stack Developer with:- 🏆 8+ years of experience in JavaScript (NodeJs, Angular, ReactJs, VueJs), Php Frameworks (Shopify, WordPress, Magento, LARAVEL). 🔵 Let's talk about Areas of expertise first:- 💎 🖥️ Client-side Scripting: JavaScript/jQuery, Apollo Graphql, AngularJS (11), Vue.js, React.js, Redux, 📱 ReactNative. 💎 Server-Side: Node.JS, PHP, Exress.js, Graphql, Graphql Appolo-server. 💎 Web Markup: HTML/HTML5, CSS/CSS3, LESS, PSD to HTML (mobile responsive) 💎 CMS Flamework: WordPress, Magento, Shopify, Laravel, Codeigniter 💎 Basics of SEO Techniques: White Hat, Link Building, Keyword Research. 💎 DATABASES - MongoDB, Postgres, MySQL, MariaDB, SQLite, and Microsoft SQL Server. 💎 ORM'S (Object-Relational Mapper): PostgreSQL, Sequelize, typeORM, Mongoose(ODM) 💎 Programming Languages: C++, C#, JS, Python, PHP. 💎 Third-Party Api's Integration: Twilio, Google Map API, Socket.io, etc. 💎 Other: WordPress Design, Responsive web design, Redesign website, Thrive Architec, Sketch/PSD/XD/Figma to WordPress conversion, Elementor (Pro), Beaver Builder, Brizy, Astra Theme, Divi Theme, Avada Theme, BuddyPress, Contact Form 7, Gravity forms, Typeforms, Woo-Commerce, Stripe / PP / Authorize.net Integration, Woo-Commerce customization using hooks and APIs, Payment Gateways setup/integration, ACF / Advanced Custom Fields, Yoast SEO, All in one SEO, Cache plugins, Speed Optimization, Gift card, Website migration, QA Expert. 💎 8+ years experience as a UNIX/Linux Systems and Network Administrator. On-premises, public cloud, private cloud, hybrid design, and operations expertise.Large AWS, Azure, and Google Cloud setup, deployments, and migrations. LAMP/LEMP stack expert, PHP, Python, Javascript, Node.js, Perl, Ruby, MatLab. 7+ years of MySQL and MongoDB, Postgres database administration experience. Hypervisor virtualization expertise with VMware ESXi, Proxmox, Hyper-V, others. Embedded system design. REST API programming. ISP/ASP/SaaS environments. System and network security, monitoring, and large NAS/SAN solutions. Code management, CI/CD with Jenkins, Git, Puppet, Chef, others. Kubernetes orchestration and Docker container management experience. Machine Learning DevOps support of TensorFlow, JupyterLabs, Apache Nifi dataflows. ➽Why hire me? ✅ A full-time freelancer with regular working hours between 9 AM-7 PM EST. ✅ History of working remotely for off-shore clients. ✅ Good in English and very responsive in communication. ✅ I will guide you to the best solution after highlighting the available options. ✅ I will be your one-stop for all tech problems you encounter. ✅ Free support for six months. ✅ You can get a server guy from here. ✅ Response time maximum 30 munites. PS: I am not accepting any job related to adult content and pornography, alcohol/drug, illegal access and against the law. Thank you for taking the time to review my profile and potentially considering me for your project!

  • Software Consultation
  • DNS
  • HTML
  • Web Application
  • Ecommerce Website
  • DevOps
  • Linux System Administration
  • Mobile App Development
  • Laravel
  • AngularJS
  • Git
  • Node.js
  • GoDaddy
  • React Native
  • Shopify

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