Backend Developer
Pradeep Kumar
Building scalable microservices and cloud infrastructure
6+ years of experience designing and deploying distributed systems. Expertise in Docker, AWS, CI/CD pipelines, and microservices architecture. Focused on building reliable, scalable infrastructure that powers production systems.
Microservices Managed
Uptime Maintained
Deployment Time Reduction
Years Experience
About Me
Passionate about building scalable solutions that make a real-world impact
Quick Facts
Location
Sindri, Jharkhand, India
Current Role
Backend Lead & Architect at Varuna Marine Services
Education
B.E. Computer Science
Specialization
Serverless Architecture, Microservices, Event-Driven Systems, AI Automation
Results-driven Backend Lead and Full Stack Engineer with 6+ years of experience building and shipping scalable web and mobile applications across fintech and maritime industries for international clients. Proficient in Node.js, TypeScript, Python, React, Flutter, and AWS — with hands-on expertise in microservices architecture, Docker, Redis, CI/CD (Jenkins, GitHub Actions, SonarCloud), and AI-driven automation (n8n, Claude API). Led and mentored teams of 3+ engineers, owning architecture design, code reviews, database design, DevOps, and client communication end-to-end. Passionate about clean, high-performance systems and automation-first engineering.
Notable Achievements
Microservices on AWS Lambda, EventBridge & SQS — 99.9% uptime
CI/CD pipelines cutting deployment time by 50%
Python automation saving 85% of manual reporting hours
Featured Projects
Real-world applications delivering measurable business value
MyHospitalNow
A comprehensive hospital booking platform connecting international patients with Indian healthcare facilities. Features multi-user authentication, real-time appointment scheduling, virtual consultations, and integrated payment systems.
Money N More - Fintech Platform
End-to-end serverless financial application for UK market with event-driven architecture. Features gift cards, vouchers, and digital wallet with automated CI/CD and real-time monitoring.
DevOps School - E-Learning Platform
Professional e-learning platform for DevOps education targeting working professionals. Features course management, interactive labs, certification tracking, and corporate training modules.
Varuna Marine - Maritime Operations Platform
Enterprise maritime platform with event-driven microservices architecture. Built from scratch with DDD patterns, serverless infrastructure, automated CI/CD, and offline-capable applications for ship operations.
ProfessNow - Service Professionals Platform
Multi-platform application connecting users with local service professionals (electricians, plumbers, mechanics, cleaners). Built with Laravel backend and Flutter mobile app featuring GPS-based location tracking and distance calculation algorithms for optimal provider matching.
Medkart - Generic Medicine Marketplace
E-commerce platform for generic medicines serving Gujarat and Rajasthan regions. Built comprehensive warehouse management system with inbound/outbound logistics, inventory tracking, and disposable medicine handling. Integrated delivery partner network for last-mile fulfillment.
Python Automation Scripts
Automated report generation and notification system built with Python, reducing manual reporting time and improving data accuracy.
Swara Marine - EU Maritime Compliance
Maritime compliance platform for EU regulations with automated report generation. Features professional document templating using Python and LaTeX for regulatory compliance documentation.
Chotu - Hyperlocal Delivery Platform
Multi-role hyperlocal delivery application connecting nearby shops with customers. Features admin dashboard for product management, user app for browsing and ordering, and delivery partner app for pickups and deliveries. Includes cloud kitchen integration for hostel students.
Expense Tracker
Personal finance management application with comprehensive expense tracking, budget management, and visual analytics. Features category-based organization, recurring expense support, and push notifications for budget alerts.
Image Watermark
Mobile application for adding watermarks to images with location data. Users can add current GPS location as watermark and customize the watermark appearance and positioning.
SEO Tools Suite
Collection of web-based SEO and image processing utilities. Includes URL analyzer for SEO/security/performance audits, site readability scorer, image resizer with format conversion, and GIF animation creator from images.
Portfolio Website
Modern portfolio website built with Next.js featuring 3D animations, smooth scrolling, and responsive design. Showcases projects, skills, and professional experience with interactive UI elements.
Want to see more? Contact me for detailed case studies and demos
Discuss Your ProjectTechnologies & Tools
Building modern solutions with industry-leading technologies
Backend Development
Databases
DevOps & Infrastructure
AWS Cloud Services
Tools & Version Control
AI & Automation
Architecture Expertise
Designing scalable, maintainable systems with proven architectural patterns
Event-Driven Architecture
Asynchronous event processing where components communicate through events. Enables loose coupling, scalability, and real-time data processing using message brokers like AWS EventBridge and SQS.
Microservices
Distributed architecture where applications are built as independently deployable services. Each service owns its data and communicates via APIs or events, enabling team autonomy and targeted scaling.
Modular Monolith
Single deployable unit with clear internal module boundaries. Combines the simplicity of monolithic deployment with the organizational benefits of modular design. Ideal starting point before microservices.
Service-Based Architecture
Hybrid approach between monolith and microservices with coarser-grained services. Services are larger than microservices but still independently deployable, balancing complexity with maintainability.
Professional Journey
From education to leading backend architecture at international companies
Varuna Marine Services B.V
Technical Consultant
Amsterdam, Netherlands (Remote)
Spearheading backend architecture for EU maritime compliance platform. Designing and implementing emission calculation engines (FuelEU, CII, GHG, CO2, CH4) with hexagonal architecture patterns. Building offline-capable surveyor applications for vessels operating in areas with limited connectivity.
Key Responsibilities
- Designed emission calculation algorithms for FuelEU, CII, GHG, CO2, and CH4 compliance
- Architected backend systems using DDD and hexagonal (ports & adapters) patterns
- Built penalty calculation modules for EU and Non-EU port regulations
Key Achievements
- Architected emission calculators serving 100+ vessels with 99.9% calculation accuracy
- Built offline surveyor app enabling inspections without internet connectivity
- Reduced compliance reporting time by 70% through automated calculations
money n more
Full-Stack Developer
London, UK (Remote)
Built a gift card marketplace for UK customers where users can buy, sell, and redeem gift cards. Developed cross-platform Flutter mobile app with Node.js/Express backend. Implemented secure authentication using AWS Cognito with JWT tokens and established automated CI/CD pipelines with SonarCloud integration for code quality reviews.
Key Responsibilities
- Developed Flutter mobile application for iOS and Android platforms
- Built RESTful APIs using Node.js and Express.js framework
- Implemented secure user authentication with AWS Cognito and JWT tokens
Key Achievements
- Processed £2M+ monthly transactions with 98.5% success rate
- Built PCI DSS compliant payment systems for UK financial regulations
- Achieved 99.9% uptime through robust error handling and monitoring
Cotocus Pvt Ltd
Full-Stack Developer
Bangalore, India
Developed 5+ production applications using Laravel backend with JavaScript, Bootstrap, and Flutter frontends. Deployed applications via cPanel and integrated AWS services (SQS for queue jobs, SES for notifications). Implemented location tracking and distance calculation algorithms for the ProfessNow service professionals app.
Key Responsibilities
- Built backend systems using Laravel PHP framework with MySQL databases
- Developed responsive web interfaces with JavaScript and Bootstrap
- Created cross-platform mobile applications using Flutter and Dart
Key Achievements
- Delivered 5+ production applications across healthcare, education, and services
- Built ProfessNow with geolocation matching 3K+ service providers to customers
- Implemented distance-based search algorithm reducing booking time by 60%
Key Projects
- ProfessNow: Service professionals platform with location-based matching
- MyHospitalNow: International healthcare coordination for medical tourism
- DevOps School: E-learning platform with video streaming and assessments
Indian Cybersecurity Solutions
Penetration Tester (Internship)
Kolkata, India
Ethical hacking and penetration testing with security vulnerability assessments.
Key Responsibilities
- Ethical hacking and penetration testing
- Security vulnerability assessments
- Network security audits
Key Achievements
- Completed comprehensive Ethical Hacking certification
- Learned OWASP Top 10 vulnerabilities
- Conducted security audits for 10+ client projects
Rajiv Gandhi Proudyogiki Vishwavidyalaya
B.E. in Computer Science
India
Bachelor of Engineering in Computer Science with CGPA 6.2/10.
Key Achievements
- Foundation in algorithms, data structures, DBMS
- Software engineering principles
- Web development fundamentals
Capstone Project
Multi-authentication solution using Core PHP
Certifications & Learning
Continuous learning to stay ahead in the ever-evolving tech landscape
Ultimate AWS Certified Developer Associate 2026 (DVA-C02)
AWS
JavaScript — The Complete Guide 2020 (Beginner + Advanced)
Udemy
JavaScript Algorithms and Data Structures
FreeCodeCamp.org
Ethical Hacking & Networking
Indian Cyber Security Solutions
Let's Build Something Amazing Together
Ready to bring your project to life? Get in touch for a free consultation and quote.
Contact Information
Phone (WhatsApp available)
+91 6265413132Location
Sindri, Dhanbad, Jharkhand 828123, India
(Available for remote work globally)
Availability
Full-time available for freelance projects
9 AM - 9 PM IST (UTC+5:30)