Technical Expertise

A comprehensive overview of my technical capabilities and experience

.Net Core

Backend
Proficiency Level95%
Last Used
current (active)
Projects15+ professional

REST Apis

Backend
Proficiency Level95%
Last Used
current (active)
Projects15+ professional

React

Frontend
Proficiency Level90%
Last Used
current (active)
Projects14+ professional

Mongo DB

Database
Proficiency Level85%
Last Used
current (active)
Projects9+ professional

Dart

Languages
Proficiency Level85%
Last Used
recent
Projects10+ professional

Postman

Tools
Proficiency Level85%
Last Used
current (active)
Projects15+ professional

Professional Journey

My career timeline and key experiences

Nov 2025 - Present

Sr. Full Stack Developer

Aura Technologies Private Limited

Remote

Working Here as a full stack lead developer focusing on insurance domain for international clients.

Nest JsAngular JsSqlNext JsReact JsAWSEC2

Aug 2025- Oct 2025

Sr. Software Engineer

Business Next

Noida, UttarPradesh

Working here as a Senior Software Engineer speicfially in .net for the world's leading CRM system powered by CRM next.

.Net.Net MVC.NET Framework.Net CoreSqlAzure DevOps

Jun 2023 - Aug 2025

Lead Software Developer

Mamsys Consultancies Pvt. Ltd.

Noida, UttarPradesh

  • Spearheaded modernization of 50+ legacy desktop apps for RTI, converting them into responsive, cloud-ready web platforms using Next.js and .NET Core APIs.

  • Led 3–5 member agile teams on multiple full-stack projects using .NET Core, Next.js, React, NestJS, and Node.js.

  • Optimized backend performance and reduced API response times by up to 40% through efficient database queries, caching, and API restructuring.

  • Designed scalable system architectures and implemented CI/CD pipelines across AWS, IIS, and custom environments.

  • Reverse engineered the existing ASP.NET MVC codebase of Pentasign, India’s second leading digital signature platform.

  • Prepared a detailed technical architecture blueprint to guide modernization efforts for client and internal teams.

  • Developed an internal AI platform leveraging Vertex AI, Elasticsearch, and auto-categorization, improving data discovery and workflow automation.

  • Normalized complex legacy databases up to 3rd Normal Form (3NF) and managed end-to-end data migration to SQL Server.

  • Interfaced with clients to define technical requirements, align delivery milestones, and ensure cross-functional team collaboration.

  • Implemented secure coding standards and conducted regular code reviews to maintain performance, readability, and compliance.

.Net CoreReactNext jsNest jsFlutterNode jsASP .Net MVCSQL ServerAzure DevOpsIISElasticSearchVertex AI

Feb 2021 - Apr 2023

Software Developer/Mobile Developer

RUBICO IT Pvt. Ltd.

Haridwar Uttarakhand

  • Developed multiple high-performance native Android applications using Java, XML, and modern design patterns, delivering smooth UI and optimized UX.

  • Built cross-platform apps using Flutter, reducing development time and cost while ensuring consistent UI/UX across Android and iOS.

  • Modernized existing Android applications using Jetpack Compose, introducing new UI components, Kotlin, and improved UX flows.

  • Designed and implemented complete mobile-to-backend solutions for a banking-related client, using Flutter (frontend) and Spring Boot (backend).

  • Integrated advanced mobile features including E-pub readers, media players, and custom libraries, increasing client app engagement and expanding reach by 50% (500K+ downloads).

  • Collaborated with designers and backend teams to ensure seamless integration and on-time delivery of mobile features.

  • Contributed to CI/CD pipelines and testing strategies to maintain app stability and faster release cycles.

AndroidFlutterSpring Boot

Featured Projects

My recent work and case studies

TUR Web Portal

Single-handedly developed and maintained the TUR Web Portal, a product of RTI, using Next.js with SSR, SWR, and custom Next.js APIs.Built a robust backend with NestJS, .NET Core, and SQL Server, incorporating RBAC (Role-Based Access Control) for secure, role-specific access.Managed custom IIS configurations and Azure deployment, ensuring zero lag in API calls and data submissions for seamless user experience.
Next js.Net CoreSQL ServerIISAzure Devops
Live DemoGitHub

Josh Media

Designed and implemented a Kotlin-based Android app using Jetpack Compose, delivering a fully declarative UI with significantly reduced boilerplate and real-time previews—leveraging Compose’s efficient state management and reactive paradigms. reddit.com+14readmedium.com+14medium.com+14Structured the codebase following MVVM architecture, ensuring clean separation of concerns between UI and business logic. Utilized ViewModel, StateFlow, and Kotlin coroutines for asynchronous data handling and testability.reddit.comAdopted modern Android tooling and libraries (e.g., Android Jetpack components, Retrofit, Hilt, Room) to build scalable, maintainable, and production-ready architecture—emphasizing modularity, dependency injection, and offline-first capabilities.
AndroidKotlinMVVMCoroutinesState FlowSky E-Pub ReaderExoPlayer
Live DemoGitHub

NestoHub

Led development of a cross-platform mobile app using Flutter, delivering a seamless experience for builders, brokers, and staff. Implemented role-based UI flows and dashboards tailored to each user type with smooth navigation and dynamic components.Built and integrated scalable backend APIs to support core functionalities such as property listings, team management, commission tracking, and visit scheduling. Ensured robust data handling and real-time interactions using secure and optimized endpoints.Developed real estate-specific modules, including property detail management with multimedia support, brokerage calculation logic, performance analytics, and role-based access control — enhancing operational transparency and user engagement.Contributed to scaling the platform as a SaaS product, enabling onboarding across PAN India with modular backend architecture, efficient data modeling, and future-ready integrations to support continuous feature growth.
FlutterNode jsAWSRabbitMQ
Live DemoGitHub

Pentasign

Reviewed and reverse-engineered multiple legacy codebases of Pentasign, India’s second leading Certifying Authority.Analyzed the existing on-premise infrastructure and inter-application communication to identify modernization needs.Prepared a comprehensive technical architecture blueprint to guide the team in modernizing the application into a scalable web platform.
ASP .NET MVC.Net CoreReactSQL ServerMicrosoft Identity Service
Live DemoGitHub

Personal Resource Management (PRP)

A mobile application developed using Flutter, powered by Node.js, and later transitioned to Nest.js with Fastify. The application is designed to manage the financial records of users based on SMS tracking and automatic expense categorization. It provides users with insightful financial analysis based on their habits and patterns.PRP utilises Gen AI, Dialog Flow, Vertex AI, and auto-categorization-based LLM models to enhance its capabilities.In my capacity as a full-stack developer, I have led a team of five individuals in the management and development of PRP. My responsibilities include architecting the application’s infrastructure and overseeing and participating in the development of the entire project lifecycle.
FlutterNest jsNode jsGithub ActionsIISEC2Fastify
Live DemoGitHub

Lets Trip World

Built and maintained a cross-platform travel planning app using Flutter and React, delivering real-time itinerary customization, interactive maps, and seamless group collaboration features.Engineered backend services in Node.js to support intelligent trip planning, including dynamic data processing, user preferences, and cost-splitting logic.Integrated Gen AI and Google Vertex AI to power personalized recommendations for destinations, activities, and dining — enhancing user experience through AI-driven travel insights.
ReactFlutterNode jsVertex AIGoogle Maps APIMongo DB
Live DemoGitHub

Lark Finserv

Developed and maintained scalable backend services using NestJS, enabling secure and efficient lending operations across mutual fund-backed credit products for individuals and businesses.Integrated and consumed multiple third-party mutual fund APIs, ensuring accurate retrieval and processing of real-time financial data to support investment analysis, loan eligibility, and risk assessment workflows.Implemented a microservices-based architecture with PostgreSQL, enhancing system modularity, data integrity, and performance — while supporting high availability and future scalability in a financial domain.
Nest jsRabbitMQDockerNest-MicroservicePostgre-Sql
Live DemoGitHub

Kodevy-Core — Personal Dev Platform (Full Stack, Self-Hosted)

A self-architected, modular web platform built with Nx, Next.js, NestJS, and MongoDB, designed for personal digital operations and portfolio control.Developed a full-featured admin dashboard with RBAC, Google OAuth login, and modular app support, enabling centralized control across user apps, systems, and platform-wide services.Implemented digital portfolio management, Notion page sync, and user/app tracking with scalable backend logic and Mongo data models.Built a custom System Health Monitoring module for tracking Hetzner server status, metrics, and deployment visibility across environments.Architected with future-proof Nx monorepo structure, allowing easy expansion of internal tools and services under a single controlled codebase.Deployed using GitHub Actions and Hetzner cloud, with Dockerized services and infra-as-code approach.
NXNext jsNest jsMongo DBHetznerGithub ActionsDockerResend
Live DemoGitHub
View All Projects

Education & Certifications

My academic credentials and professional certifications

Senior Secondary (XII)

Holy Angel Sr. Sec. School

2016-2017Resham Majri, Dehradun

    Bachelor Of Technology (Computer Science and Engineering)

    Dev Bhoomi Institute of Technology

    2017-2021Dehardun, India

      Professional Certifications

      Certified in Core Java

      Pack-Pub

      Issued: July 16, 2020

      Learend Core java and other concepts

      ID: gw6y8s9nf2Verify Credential

      Certified in Jetpack Compose Crash Course For Android With Kotlin

      Udemy

      Issued: March 14, 2023

      Certified Android Development with Kotlin and latest development practices and tools from Android.

      ID: UC-ef8b5e4e-4f5f-49cb-b52f-bb897965269bVerify Credential

      Certified in Android Jetpack Compose Bootcamp

      Udemy

      Issued: October 31, 2022

      Done Android Jetpack Compose bootcamp and learned about android development.

      ID: UC-54f614c4-7b4d-40a7-a68a-1d6dd59f99d3Verify Credential

      Certified in Spring Basics and Spring Security

      GeeksForGeeks

      Issued: February 9, 2022

      Done Spring Basics and Spring Security

      ID: cert_73br4sdxVerify Credential

      Client Testimonials

      What others say about working with me.

      I’ve always been inspired by Vijay Sir — a mentor who genuinely cared about my growth and never hesitated to guide me whenever I was stuck. His support, knowledge, and patience have had a lasting impact on me. I truly admire and appreciate everything I’ve learned from him.

      S

      Soni Negi

      Senior Software Engineer

      I just wanted to take a moment to express my sincere gratitude for all the support and guidance you’ve given me. Working with you has truly been a privilege — your patience, expertise, and willingness to share your knowledge made a huge difference in my journey here. You’ve not only been an amazing mentor, but also someone I could always rely on for honest advice and encouragement. Your leadership and positivity created an environment where learning felt natural and challenges felt achievable. Thank you for believing in me and for all the ways you’ve helped me grow, both professionally and personally.

      J

      Jatin Pandey

      Assistant System Engineer

      Get In Touch

      Have a project in mind or want to discuss opportunities?

      Email

      Get in touch via email

      developer.javalogist@gmail.com

      Phone

      Call me directly

      +91-7895302020

      Book a Meeting

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      Send a Message

      Rishikesh, India