Hi, I'm Suraj Das.

Backend & Database Developer with hands-on experience designing and optimizing data-driven systems using PHP (Laravel), SQL, MySQL, RDBMS, Node.js , ExpressJs. Focused on performance, scalability, and clean backend architecture.

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6+ Years Experience
35+ Projects Completed
5+ Happy Clients
Suraj portfolio Image

About

Backend & Database Developer focused on building scalable Web application and APIs, high-performance data systems using Laravel, MySQL, Node.js, ExpressJs. I specialize in designing efficient database architectures and optimizing backend performance for real-world applications.

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About Me

Backend Engineer | SQL & Database Systems Specialist

SQL | MySQL | RDBMS | Database Design | Query Optimization | Indexing | Stored Procedures | Views | Triggers | Redis | Laravel | PHP | NodeJs | ExpressJs | REST API | Data Processing | Backend Architecture

I design and build backend systems that are fast, scalable, and reliable in production environments.
My work focuses on developing Web Application, REST APIs, optimizing database performance, and structuring backend architecture that can handle complex business logic efficiently.

I have hands-on experience with:

• Designing relational databases and schema architecture
• Writing optimized SQL queries and improving slow systems
• Implementing indexing and performance tuning strategies
• Building RESTful APIs using Node.js and Laravel
• Using Redis for caching and performance improvements
• Handling data processing and backend workflows

I focus on clean architecture, maintainable code, and efficient system design—ensuring your application performs well as it grows.
If you need help with backend development, database optimization, or API design, I’m ready to support your project.

Tech stack & strengths

Database & Query Language

Schema design, migrations, indexing, query optimization, and data-heavy reports with minimal performance penalties.

  • MySQL
  • SQL
  • Advanced SQL Queries
  • RDB Design
  • Database Modeling
  • Normalization (1NF – 3NF)
  • Indexing Strategy
  • Stored Procedures, Views
  • ER Diagram Design
  • Performance Tuning
  • Triggers & Functions

Backend Technologies & Framework

REST APIs, authentication, authorization, form requests, queues, jobs, events, modular project structure.

  • PHP
  • Laravel
  • REST API Development
  • Queue
  • worker
  • Node.js
  • Express.js

Frontend Technologies

Practical UI work: Blade templates, basic components, jQuery/Ajax for forms and dashboards.

  • HTML5
  • CSS3
  • JavaScript

Caching & Performance

Caching & Performance

  • Cron job
  • Redis
  • Background Jobs

Tools & Platforms

Tools & Platforms

  • Docker
  • Git
  • GitHub
  • Bitbucket
  • MySQL Workbench

Resume

Professional backend developer with strong experience in building scalable APIs, web applications, and backend systems using PHP, Laravel, and modern technologies.

Work Experience

Experienced backend developer specializing in Laravel, REST API development, database architecture, and scalable application design.

Clirnet Services Private Limited

April-2023 - Current

Software developer

• Optimized complex SQL queries and indexing strategies, improving API response time by 35–45%.
• Designed relational database schemas, ER diagrams, and normalized data models (up to 3NF) to ensure scalability and data integrity.
• Implemented stored procedures, database views, and triggers to automate backend data operations and enforce database consistency.
• Built database logic to track doctor activity data, enabling operational teams to monitor engagement and performance.
• Created SQL-based datasets and database views used by the operations team for reporting and operational analytics.
• Designed and developed 100+ scalable RESTful APIs using Laravel and MySQL for enterprise‑level healthcare modules.
• Developed backend modules for doctor registration system and profile management systems within the healthcare platform.
• Collaborated with DevOps teams in CI/CD deployment pipelines across Dev, UAT, and Production environments.
• Implemented Redis caching and queue systems to reduce database load and improve backend performance.
• Worked with cross‑functional teams including frontend, QA, and product teams to implement backend data services.

Capital Numbers Infotech Private Limited

October-2022 - March-2023

Software developer

• Developed backend modules and REST APIs using Laravel integrated with MySQL databases.
• Designed scalable database schemas aligned with business requirements.
• Improved SQL performance by restructuring queries and implementing indexing strategies.
• Participated in sprint planning, requirement analysis, and backend architecture discussions.

Web Digital Mantra IT Service Private Limited

May-2022 - October-2022

Backend Developer

• Developed backend modules and APIs using Laravel and MySQL.
• Translated functional requirements into scalable backend logic and database schemas.
• Refactored legacy code and optimized SQL queries to improve maintainability and performance.

Uktek India (Formerly SYSTEMS)

February-2019 - April-2022

Software developer

• Developed full‑stack web applications using PHP, Laravel, and MySQL.
• Designed backend business logic and reusable components following MVC architecture.
• Provided long‑term production support and resolved critical backend and database issues.

My Education

Academic background focused on computer science, programming, and software engineering principles.

MCKV Institute of Engineering

2013-2016

Bachelor of Technology in Electronics and Communication Engineering

Elite Polytechnic Institute

2010-2013

Diploma in Electronics and Telecommunication Engineering

Portfolio

Projects where I designed and built backend systems, optimized performance, and delivered reliable solutions for real-world applications.

  • All Work
  • Rest API
  • Web Application
Web Application

Doctor Engagement

Built a CRM system for managing doctor data, engagement campaigns, and medical representative workflows.

Key Features:

• Doctor data processing & filtering
• Multi-channel engagement (Email, SMS, WhatsApp)
• Role-based access system
• Medical representative assignment logic

  • Redis
  • MySQL
  • Laravel
Rest API

Analytics Dashboard API for Healthcare Platform

Developed a backend analytics system to track user engagement data and generate actionable insights.

Key Features:

• Activity tracking (views, likes, engagement)
• Optimized database queries
• JWT authentication with refresh tokens
• Redis caching for performance

  • Redis
  • API
  • MySQL
  • Express.js
  • Node.js
  • JWT
Rest API

Content Request & Vendor Management System

Built a CMS platform where users submit content requests that are assigned to vendors and processed through approval workflows.

Key Features:

• Request submission & tracking
• Vendor assignment system
• Multi-level approval workflow
• Role-based access control

  • Redis
  • API
  • MySQL
  • Laravel
  • JWT
Web Application

CRM with Workflow Automation & Auth System

Developed a CRM platform to manage doctor onboarding, verification, and engagement workflows.

Key Features:

• Role-based system
• Doctor onboarding workflow
• Call recording tracking
• JWT authentication + Redis caching

  • Redis
  • MySQL
  • Laravel
Web Application

QR-Based Restaurant Food Ordering and Management System with Payment Split

Developed a contactless food ordering system using QR codes with integrated online payments and commission distribution.

Key Features:

• QR-based table ordering
• Online payment via Stripe
• Revenue split (restaurant vs platform)
• Waiter assignment system

  • MySQL
  • Laravel
  • JavaScript
Web Application

Online Examination System with Payment Integration

Developed an education platform where students can take paid online exams with role-based access for students, parents, and admins.

Integrated PayPal for secure payment processing.

Key Features:

• Online exam system
• Multi-user roles (Student / Parent / Admin)
• Payment integration (PayPal)
• Result and performance tracking

  • MySQL
  • Laravel
  • JavaScript
Web Application

E-commerce Platform with Referral & Commission Logic

Developed a feature-rich e-commerce system with referral-based rewards and hierarchical commission distribution.

Key Features:

• Product purchasing system
• Referral-based onboarding
• Binary tree commission structure
• Wallet & withdrawal system

  • MySQL
  • Laravel
  • JavaScript
Contact

Suraj Das
Backend Engineer | SQL & Database Systems Specialist

SQL | MySQL | RDBMS | Database Design | Query Optimization | Indexing | Stored Procedures | Views | Triggers | Redis | Laravel | PHP | REST API | Data Processing

surajdas11120@gmail.com
+918343864248