Roushan KumarFull Stack .NET Developer | AWS Cloud | Angular | React | REST APIs | Microservices | 3+ Years Experience
Executive Summary

Results-driven Full Stack .NET Developer and Cloud Engineer with 3+ years of experience building scalable web applications, cloud-native solutions, and high-performance APIs. Skilled in ASP.NET Core, .NET 8, C#, SQL Server, Angular, React, AWS, and Azure, with expertise in end-to-end application development, REST API design, third-party integrations, and serverless architecture. Experienced in delivering enterprise solutions, optimizing system performance, implementing CI/CD practices, and collaborating within Agile teams to build secure, reliable, and business-focused software solutions.

Core Competencies
Architectural Design

Microservices Architecture, Serverless Architecture, Cloud-Native Applications, System Modernization, Database Schema Design, Scalable System Design

Frontend

Angular,React,TypeScript,JavaScript,Frontend Architecture,Responsive UI Development,

Component-Based Design

Cloud & DevOps

AWS Cloud Services, Serverless Computing, Cloud Migration, Identity & Access Management (IAM), CI/CD Pipelines, Deployment Automation

Product Delivery

End-to-End Module Ownership, Full Software Development Lifecycle (SDLC), Agile/Scrum Methodologies, Requirements Analysis, Cross-Functional Collaboration

Backend & API Engineering

RESTful API Development, GraphQL, API Integration, Complex Business Workflows, Relational Database Management, Enterprise Application Development

Software Architecture

Clean Architecture,CQRS,Repository Pattern,Dependency Injection, Domain Driven Design ,Event Driven Architecture,SOLID Principles

Design Patterns

Performance Optimization

Application Performance Tuning, Latency Reduction, Query Optimization, System Reliability, Business Logic Simplification, Scalability Enhancement

Leadership & Mentorship

Technical Mentorship, Team Productivity Enhancement, Technical Onboarding, Code Review, Code Quality Standards, Knowledge Sharing

Key Projects & Impact

NDSF / CORE ERP

NSDF ERP System (Saudi Arabia)
04/2026 – Present
  • •Developed features for a multi-module ERP platform managing organizational resources, purchase orders, invoices, and reporting processes.
  • •Designed and implemented the User Management Module, including authentication, authorization, role management, and user lifecycle operations.
  • •Built and integrated secure APIs with ERP modules while ensuring scalability, performance, and data security.
  • •Collaborated in end-to-end development, testing, and deployment of enterprise-grade business applications.

    • RawTalent

    Australia’s Leading Casual Staffing and Workforce Management Platform
    07/2024 – Present
  • •Infrastructure Overhaul: Led the backend redevelopment of Australia’s top workforce platform, shifting legacy components to an agile AWS serverless pipeline. 
  • •Workflow Optimization: Built scalable architectures for real-time booking management, automated candidate onboarding, secure document handling, and high-throughput notifications. 
  • •Asynchronous Event Processing: Re-architected notification and document processing pipelines utilizing AWS SQS and Lambda, eliminating blocking synchronous requests and decoupling core booking workflows.
  • •Data Layer Optimization: Redesigned relational schema indices and optimized complex LINQ/SQL queries to support high-concurrent user activity during peak shift-booking windows.
  • •Enterprise State Management: Developed a robust state-machine backend to handle complex, multi-tier candidate onboarding compliance, ensuring secure and transactional document validation.
  • •Quantifiable Platform Scaling Achievements:
  • •Slashed backend booking processing speeds from 5–7 seconds down to 2–3 seconds. 
  • •Boosted platform booking success rates to a stable 95%–99%. 
  • •Compressed booking acceptance latencies from 10 minutes to just 15 seconds. 
  • •Enabled a +66% growth in weekly operational volume, scaling capacity from 150 to 250 bookings

    • Direwolf

    (Equipment Service Portal)
    02/2024 – 06/2024
  • •Greenfield Architecture: Designed and built a comprehensive full-stack enterprise web portal completely from scratch, executing the underlying relational schema, business logic APIs, and interface layout. 
  • •Security & Access Control: Architected and deployed a fine-grained Role-Based Access Control (RBAC) mechanism to securely partition interactions between Admins, Clients, and Users. 

    • Phased Milestone Delivery: Successfully delivered Phase 1 and Phase 2 architectures directly into staging environments ahead of schedule.

    Professional Experience

    Full Stack .NET Developer | AWS Cloud Engineer

    Revocept Solutions | Full Stack Developer | Cloud Engineer
    07/2023 – Present | Mohali,India
  • •Legacy System Migration: Spearheaded the architectural migration of legacy, IIS-based platforms to AWS serverless environments (Lambda, API Gateway, SQS, Cognito, Amplify), driving a 50%+ reduction in API latency and vastly improving cloud-native maintainability. 
  • •End-to-End System Design: Engineered relational database schemas, robust backend workflows, and scalable RESTful APIs while concurrently supporting frontend integration to deliver high-performance production applications. 
  • •Third-Party Integration: Seamlessly embedded complex enterprise platforms—including Xero, Employment Hero, Hireflix, Klaviyo, and Firebase—into existing business workflows to create unified end-to-end software solutions. 
  • •Cross-Functional Agile Delivery: Collaborated deeply within Agile/Scrum teams to independently own complex functional modules across the full SDLC, minimizing feature delivery timelines. 
  • •Rapid Career Progression: Consistently promoted through four distinct tiers based on technical excellence and proactive problem-solving: Trainer → Associate Developer → Junior Developer → Full Stack Developer. 
    • Revocept Solutions | Mohali, India | Mentor & Technical Lead
    07/2023 – Present | Mohali,India
  • •Team Upskilling: Structured and executed a formal training framework for junior trainees covering .NET backend methodologies, API patterns, and modern frontend frameworks. 
  • •Quality Assurance: Maintained rigorous code quality by establishing strict standards for debugging, system testing, and clean code documentation, accelerating internal engineering onboarding efficiency. 
    • TECHNICAL SKILLS
    Languages

    C#, Python, JavaScript, SQL , Angular, React

    Backend

    ASP.NET Core, ASP.NET MVC, Web API, RESTful Services, LINQ, Entity Framework Core, GraphQL, Microservices Architecture

    Development Tools

    Visual Studio, VS Code, Postman, SQL Server Management Studio (SSMS), Antigravity,Codex

    Databases

     SQL Server, MySQL, Database Design, Query Optimization

    AI & Automation

    OpenAI API, Generative AI, AI Automation, Prompt Engineering, AI Agents, Workflow Automation, LLM Integration.

    Frontend

    HTML5, CSS3, JavaScript, Tailwind CSS, Material UI, Angular, React,Bootstrap

    Cloud & Serverless Technologies:

    Microsoft Azure, Amazon Web Services (AWS), AWS Lambda, API Gateway, Cognito, SQS, Amplify, Azure Functions, Firebase,S3

    Architecture & Development Practices

    Agile Methodology, Scrum, Object-Oriented Programming (OOP), SOLID Principles, Design Patterns, Clean Architecture

    Third-Party Integrations

    Xero, Employment Hero, Hireflix, Klaviyo, Firebase, Google Maps API, Payment Gateway Integrations, External REST APIs

    DevOps & Version Control

     Git, GitHub, Bitbucket, CI/CD Pipelines, Azure DevOps, Deployment Automation

    EDUCATION

    Bachelor of Technology (B.Tech) in Computer Science Engineering

    SWAMI VIVEKANAND INSTITUTE OF ENGINEERING & TECHNOLOGY
    07/2021 – 06/2024 | Punjab,India
  • •CGPA: 8.72 / 10

    • DIPLOMA IN COMPUTER SCIENCE ENGINEERING

    GOVERNMENT POLYTECHNIC, PATNA-7
    07/2018 – 06/2021 | Bihar,India
  • •CGPA: 8.49 / 10