Welcome to my portfolio

Software Engineer

Results-driven MERN Developer with proven experience specializing in React.js, Node.js, and DevOps. Passionate about building scalable systems, microservices architecture, and cloud infrastructure.

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Professional

Experience

7+

Projects Shipped

100%

Dedication

About & Overview

Who I Am

I'm a results-driven MERN stack developer with a passion for building scalable backend systems and cloud infrastructure. My expertise spans microservices architecture, real-time communication, and DevOps practices.

Currently working at LDT Technology, I focus on designing robust systems that scale, implementing best practices in observability, and delivering production-grade solutions.

Adept at building responsive, user-centric web applications, integrating RESTful APIs, and collaborating in Agile teams. Passionate about clean code, performance optimization, and solving complex technical challenges.

Current Position

LDT Technology

Specializing in backend systems, DevOps infrastructure, and building scalable web applications with focus on performance and reliability.

2024 - Present

Languages

EnglishHindi

Technical Skills

Languages

🔤
JavaScriptTypeScriptHTMLCSS

Frontend Libraries

⚛️
React.jsReact RouterReduxTailwind CSSMaterial-UIAxiosJest

Frameworks

🏗️
Next.jsExpress.jsHapi.jsGatsby

Databases

🗄️
MongoDBMySQLRedisElasticsearch

Backend & APIs

🔌
REST APIsgRPCProtocol BuffersSwagger/OpenAPIMongooseWinston

DevOps & Cloud

☁️
DockerKubernetesAWSDigitalOceanGitHub PackagesYarn Workspaces

Messaging & Events

📨
KafkaEvent-Driven ArchitectureProducersConsumersDLQ

Integrations

🔗
StripeOmiseCustomer.ioPusherStream ChatAgora

Observability

📊
Datadogdd-tracePrometheusHealth ChecksStructured Logging

Testing

✅
JestSupertestUnit TestingIntegration Testing

Tools & IDE

🛠️
GitGitHubGitLabVS CodeCursorJIRASlackClick-up

Security

🔒
HelmetCORSJWT AuthenticationData ValidationZod

Featured Projects

Backend Engineer

Spark.love

A modern dating platform enabling users to connect, invite matches on dates, and book restaurant reservations within the app with real-time communication and secure payments.

Key Contributions

  • →Designed microservices architecture using gRPC for inter-service RPC and Kafka for asynchronous event processing
  • →Implemented an Express API Gateway consolidating routing, authentication, and merged Swagger documentation
  • →Built centralized JWT authentication patterns with decorators and guards for consistent security

Tech Stack

Node.jsTypeScriptExpressgRPCProtocol BuffersMongoDB+12

Full-Stack Developer

Expociety

An engagement platform connecting event venues and influencers to promote events across Instagram, Facebook, Snapchat, and TikTok.

Key Contributions

  • →Led full-stack development, delivering responsive and intuitive web platform
  • →Integrated Stripe for secure payments and implemented robust authentication with password recovery
  • →Implemented push notifications via FCM to improve user engagement

Tech Stack

Node.jsHapi.jsFirebase Cloud Messaging (FCM)Next.jsReactTailwind CSS+2

Frontend Developer

Hapa

A cross-platform social media app where users can register, create posts, and interact in real time with clean, responsive frontend components.

Key Contributions

  • →Built dynamic, responsive UI components and user authentication screens
  • →Implemented post/media management UI with create/edit/delete, likes, and comments
  • →Added WebSocket-powered real-time notifications

Tech Stack

React.jsJavaScriptTailwind CSSReact-ReduxAxiosWebSocket

Frontend Developer

Zap's Travel

A travel booking platform for flights and hotels with price comparisons and user reviews.

Key Contributions

  • →Developed reusable UI components and responsive pages
  • →Integrated TBO APIs for real-time flight and hotel data
  • →Used Redux and React Query to improve state management and API caching

Tech Stack

JavaScriptReact.jsReduxAxiosReact RouterMaterial UI+4

Full-Stack Developer

LDT Website

Current

Ongoing enhancements and feature development for the company website with performance improvements and email automation.

Key Contributions

  • →Delivered feature updates and performance improvements
  • →Implemented email automation using Node.js and SMTP
  • →Implemented responsive UI components and fixed cross-browser issues

Tech Stack

Next.jsExpressJavaScriptCSSTailwind CSSNode.js+1

Backend Developer

HyperDrive

A ride-hailing platform supporting real-time bookings, GPS tracking, secure payments, and notifications.

Key Contributions

  • →Designed scalable backend services for ride management, payments, and promotions
  • →Built RESTful APIs with Hapi.js and integrated Stripe for payment processing
  • →Implemented WebSocket-based ride tracking and scheduled background jobs

Tech Stack

JavaScriptTypeScriptNode.jsHapi.jsAxiosStripe API+6

Full-Stack Developer

SmartChat

An automated chat panel integrating OpenAI to generate responses and WhatsApp Business API for message delivery.

Key Contributions

  • →Designed the chat platform architecture
  • →Integrated OpenAI for context-aware response generation
  • →Integrated WhatsApp Business API for real-time messaging

Tech Stack

React.jsNode.jsOpenAI APIWhatsApp Business APIJavaScriptCSS

Professional Experience

Software Developer

LDT Technology

2024 - Present

Specializing in backend systems, DevOps infrastructure, and building scalable web applications with focus on performance and reliability.

Backend DevelopmentDevOps & CloudPerformance OptimizationSystem Design

Full-Stack Developer

Multiple Projects

2022 - 2024

Worked on diverse projects including Expociety, SmartChat, and other ventures. Developed both frontend and backend components, ensuring seamless integration with third-party APIs and payment gateways.

Full-Stack DevelopmentFrontend & BackendAPI IntegrationPayment Processing

Frontend Developer

Multiple Projects

2022 - 2023

Designed and implemented user-facing components for applications like Hapa and Zap's Travel. Focused on responsive design, performance optimization, and providing seamless user experiences.

React.js DevelopmentUI/UX ImplementationPerformance TuningComponent Architecture

Backend Developer

Multiple Projects

2022 - 2023

Built scalable backend services for projects like HyperDrive with focus on microservices, real-time systems, and payment integration.

MicroservicesRESTful APIsDatabase DesignReal-time Systems

Education & Qualifications

🎓

Bachelor of Computer Applications (BCA)

Computer Applications

Year: 2022

Performance: 67%

📚

Master of Computer Applications (MCA)

Computer Science

Year: 2024

Performance: 80%

Technical Proficiency

Data Structures & Algorithms (DSA)

  • ✓Algorithm Design
  • ✓Complexity Analysis
  • ✓Problem Solving

Software Development Practices

  • ✓Clean Code
  • ✓Design Patterns
  • ✓SOLID Principles
  • ✓Agile Methodology

Cloud & DevOps

  • ✓Containerization
  • ✓Orchestration
  • ✓Infrastructure as Code
  • ✓CI/CD Pipelines

Observability & Monitoring

  • ✓Distributed Tracing
  • ✓Metrics Collection
  • ✓Log Aggregation
  • ✓Health Checks

Let's Connect

I'm always open to new opportunities, collaborations, and interesting conversations. Feel free to reach out!

📧

Email

hartik.work@gmail.com

🐙

GitHub

github.com/hartikk

💼

LinkedIn

linkedin.com/in/hartik

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