Hi, I'm Aditya Raj

Backend-focused Full-stack Developer building scalable APIs and distributed systems. Experienced in secure code execution, microservices, and high-performance backend services. FastAPI, Node.js, Kubernetes, MongoDB.

Bangalore, India

Aditya Raj

๐Ÿ’ผ Experience

Software Development Intern
GISUL Software Services Pvt. Ltd. Bangalore, India (OnSite)
Jan 2026 โ€” Present
  • Developed backend systems for an edutech platform that securely executed client-submitted code on server infrastructure.
  • Implemented API gateways using FastAPI and Node.js to coordinate communication between distributed microservices.
  • Designed and developed horizontally scalable services to support concurrent execution workloads.
  • Worked within a microservices architecture to isolate execution environments and improve system reliability.
  • Deployed and managed services using Kubernetes, enabling container orchestration and scalable infrastructure management.
  • Automated build, testing, and deployment workflows using GitHub Actions to streamline CI/CD pipelines.
  • Performed load testing with k6 to evaluate system performance under high concurrency.
  • Conducted functional API testing and validation using Postman to ensure endpoint reliability and correctness.
FastAPINode.jsPythonMicroservices ArchitectureAPI Gateway DesignKubernetesDockerGitHub ActionsCI/CDDistributed SystemsScalable System Designk6PostmanREST APIsBackend DevelopmentPerformance TestingSoftware DevelopmentAgile Development
SDE Internship
Congnifly AI System & Services Jeddah, Saudi Arabia (Remote)
Aug 2025 โ€” Dec 2025
  • Developed server-side rendered (SSR) web pages using Next.js to improve application performance, SEO, and overall user experience.
  • Built backend services using Node.js to support application APIs and business logic.
  • Implemented secure route handling and authentication mechanisms to protect sensitive endpoints and ensure controlled access within the application.
  • Collaborated with the development team to integrate frontend components with backend services and optimize data flow across the application.
  • Participated in debugging, testing, and code reviews to maintain code quality and ensure stable deployments.
Next.jsNode.jsJavaScriptServer-Side Rendering (SSR)Express.jsREST APIsAuthenticationSecure RoutingJSON Web Token (JWT)MongoDBGitAgile DevelopmentBackend DevelopmentFrontend DevelopmentFull-Stack DevelopmentDebuggingSoftware DevelopmentTeam Collaboration

๐Ÿ’ป Projects

SQL Execution Engine
Jan 2026 ยท Feb 2026
  • Designed and developed a secure SQL execution engine capable of running user-submitted database queries in isolated environments.
  • Implemented sandboxed execution using containerized environments and process isolation to prevent unauthorized system access.
  • Built backend APIs for query submission, execution monitoring, and result retrieval while enforcing strict execution limits and output truncation.
  • Engineered command rewriting and validation layers to sanitize queries and mitigate malicious input or resource abuse.
PythonBackend DevelopmentSystems ProgrammingSandboxingDockerAPI DevelopmentSecurity EngineeringSQLProcess IsolationLinuxREST APIsGit
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Distributed Code Execution Engine
Feb 2026 ยท Apr 2026
  • Developed a distributed code execution platform capable of safely running user-submitted programs in multiple languages.
  • Implemented sandboxing using nsjail to enforce strict CPU, memory, filesystem, and network isolation.
  • Designed execution workers and API services to handle concurrent job scheduling and result streaming.
  • Integrated namespace isolation and resource limits to ensure secure multi-tenant execution environments.
PythonFastAPIDistributed SystemsnsjailLinux NamespacesContainerizationSandboxingREST APIsSystem SecurityProcess ManagementBackend Development
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Web Crawler and Data Analysis Platform
Jul 2025 ยท Present
  • Developed a scalable web crawling and data aggregation system capable of collecting and processing structured data from multiple online sources.
  • Designed a modular backend architecture separating crawlers, APIs, machine learning components, and database layers for maintainability and scalability.
  • Implemented RESTful APIs to expose processed data and analysis results to frontend clients built with React.
  • Integrated Python-based data analysis modules to extract insights from crawled datasets and support automated decision workflows.
PythonWeb CrawlingData PipelinesFastAPIReact.jsREST APIsBackend DevelopmentData ProcessingSystem DesignMicroservicesGitJavaScript
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๐Ÿ‘จโ€๐Ÿ’ป Skills

PythonJavaScriptJavaNode.jsExpress.jsFastAPIReact.jsReact NativeNext.jsHTML5CSS3REST APIsAPI Gateway DesignMicroservices ArchitectureDistributed SystemsBackend DevelopmentFull-Stack DevelopmentMongoDBNoSQL DatabasesMySQLJWT AuthenticationSecure API DesignDockerKubernetes (K8s)LinuxContainerizationCI/CDGitHub ActionsGitVersion ControlLoad Testing (k6)API Testing (Postman)System DesignDebuggingProblem SolvingSoftware Development

๐ŸŽ“ Education

B.E in Software Engineering
2022 โ€” 2026 ยท Bangalore, India

๐Ÿ“ƒ Certifications

RESTful API Developer
Linkedin
Issued Nov 2024
Meta Database Engineer Specialization
Meta
Issued Feb 2024
Docker Foundations Professional Certificate
Docker
Issued Nov 2024
JavaScript Foundations Professional Certificate
Mozilla
Issued Nov 2024
Programming with Python Professional Certificate
OpenEDG Python Institute
Issued Nov 2024
Career Essentials in Cybersecurity by Microsoft and LinkedIn
Microsoft
Issued Nov 2024
C++ Programming Professional Certificate
OpenEDG C++ Institute
Issued Nov 2024
Getting Started with AI and Machine Learning
Linkedin
Issued Nov 2024