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JASTI RAJA

Full Stack Java & React Developer

Email: rajajasti500@gmail.com  |  Phone: +91 99853 84290  |  Location: Guntur & Hyderabad, India
Portfolio: https://www.jastiraja.in  |  LinkedIn: https://www.linkedin.com/in/jastiraja/  |  GitHub: https://github.com/JastiRaja

PROFESSIONAL SUMMARY

Results-driven Full Stack Developer & Software Engineer with 2+ years of professional engineering experience in full lifecycle software development (SDLC), system design, and building scalable microservices architectures and responsive user interfaces. Proven expertise in Java (Core Java, JDK 17/21), Spring Boot 3, Spring Security, RESTful Web Services, React.js, Next.js, TypeScript, PostgreSQL, and Docker. Demonstrated success in designing resilient backend APIs with JWT & OAuth 2.0 authentication, optimizing database queries with Spring Data JPA & Hibernate (sub-150ms latency), implementing automated quality assurance with JUnit 5, Mockito & Playwright (Unit, Integration & E2E Testing), and managing containerized CI/CD deployment pipelines.

TECHNICAL SKILLS

Programming Languages: Java (Core Java, JDK 8/11/17/21), TypeScript, JavaScript (ES6+), SQL, HTML5, CSS3, Go (Basic)
Backend & Microservices: Java Spring Boot 3, Spring MVC, Spring Data JPA, Hibernate ORM, Spring Security, Microservices Architecture, RESTful Web Services, REST APIs, OpenAPI / Swagger 3.0, WebSockets (Socket.IO), Node.js, Express.js, Maven, Multithreading, JSON, Distributed Systems
Frontend Development: React.js 18, Next.js (App Router), Redux Toolkit, React Hooks, State Management, Tailwind CSS, Responsive Web Design, Single Page Applications (SPA), Asynchronous JavaScript, Axios, Vite, UI/UX Optimization
Databases & Storage: PostgreSQL, MongoDB Atlas, Supabase, MySQL, Redis, Database Design, Schema Normalization, Query Optimization, Database Indexing, ACID Transactions, Connection Pooling, NoSQL
DevOps, Cloud & Tooling: Docker, Containerization, Docker Compose, CI/CD Pipelines, Git, GitHub, GitLab CI/CD, Postman, Linux/Unix, Bash Scripting, Cloud Hosting (Vercel, Render), pgAdmin
AI-Assisted Engineering & Tools: Cursor AI, Google Antigravity, GitHub Copilot, ChatGPT (Prompt Engineering, AI-Assisted Refactoring, Automated Test Generation & SDLC Acceleration)
Security & Methodologies: JWT Authentication, OAuth 2.0, Role-Based Access Control (RBAC), API Security, Cryptographic Verification (SHA-256, RSA), Object-Oriented Programming (OOP), SOLID Principles, Design Patterns, Agile / Scrum, SDLC

WORK EXPERIENCE

Freelance Full Stack Developer & Architect | Independent Practice
08/2025 - Present | Guntur, India
  • Spearheaded end-to-end full-lifecycle development of custom enterprise web platforms using React, TypeScript, Node.js, Express.js, and MongoDB, serving 500+ corporate users.
  • Engineered the Wellcorp Payslip Generator with automated WhatsApp Cloud API messaging, reducing monthly payroll administrative processing turnaround time by 75%.
  • Architected resilient RESTful API endpoints with JWT authentication, CORS headers, and rate-limiting, maintaining 99.9% system uptime and zero security incidents.
  • Optimized frontend asset delivery, code-splitting, and server-side caching, consistently achieving 99+ Google Lighthouse scores and sub-1.2s page load speeds.
  • Automated third-party transactional email pipelines (Brevo API) with client-side PDF rendering, processing 10,000+ monthly notifications with 100% delivery reliability.
Full Stack Developer | Talvox Pvt Ltd
06/2024 - 08/2025 | Hyderabad, India
  • Developed and maintained scalable multi-tier enterprise web applications leveraging Java Spring Boot, React.js, PostgreSQL, and Spring Data JPA in an Agile Scrum team of 8 engineers.
  • Implemented robust Spring Security filter chains with stateless JWT tokens and granular Role-Based Access Control (RBAC) across 25+ administrative REST endpoints.
  • Diagnosed and resolved N+1 query bottlenecks by introducing custom DTO projections and indexed queries in Hibernate / Spring Data JPA, reducing database latency by 45% (sub-150ms).
  • Constructed reusable, accessible UI components using React.js, TypeScript, and Tailwind CSS, managing asynchronous state via Redux Toolkit and Context API across 15+ core modules.
  • Authored automated unit and integration tests using JUnit 5 and Mockito, increasing test coverage to 85%+ and minimizing production release regressions.
  • Configured automated CI/CD deployment pipelines on Vercel and Render, increasing sprint release deployment frequency by 40%.
Web Developer Intern | Exposys Data Labs
05/2023 - 07/2023 | Remote
  • Programmed responsive, cross-browser compatible user interface components using React.js, HTML5, and CSS3, integrating backend REST endpoints via Axios.
  • Enhanced client-side form validation, dynamic state handling, and error boundaries, improving user form completion rates by 25%.
  • Collaborated in daily Agile standups, code reviews, and Git version control workflows, achieving 100% on-time feature delivery across 3 sprint cycles.

PROJECTS

ZenyraHR Enterprise Platform & Test Harness
Java Spring Boot 3, React.js, PostgreSQL, Docker, JWT, Playwright, OpenAPI
  • Architected a multi-tier Enterprise HRMS with granular Role-Based Access Control (RBAC), multi-tenant isolation, OpenAPI specs, and an automated Playwright regression testing suite with zero production downtime.
  • Secured 25+ REST controllers with stateless Spring Security JWT authentication and optimized JPA queries with custom DTO projections.
  • Containerized the entire multi-service stack with Docker & Docker Compose for seamless one-command production deployments.
Aadhaar eKYC Decoder & Verification Engine
Node.js, Express.js, Fast-XML-Parser, Crypto, Stream Unzipper
  • Engineered a high-security in-memory identity verification pipeline ingesting password-protected UIDAI ZIP archives, verifying digital signatures against root certificates, and extracting sanitized biometric records.
  • Implemented pure in-memory streaming eliminating PII storage liabilities with sub-30ms execution throughput.
Cyan Finance Gold Loan Platform
Node.js, Express.js, React.js, MongoDB Atlas, Brevo API, DLT SMS
  • Developed a full-stack gold loan ledger management system with double-entry accounting audits, dynamic interest calculation formulas, and automated repayment schedules.
  • Integrated transactional email notifications via Brevo API and DLT-compliant SMS triggers with sub-150ms query speeds.
Wellcorp Payslip Generator & Automation Engine
React.js, TypeScript, MongoDB, WhatsApp Cloud API, Dynamic PDF Worker
  • Architected an automated enterprise compensation generator delivering encrypted PDF payslips to 300+ employees monthly via WhatsApp Cloud API.
  • Built zero-latency client-side PDF rendering engine and payroll computation modules, eliminating administrative reconciliation discrepancies.

EDUCATION

Master of Technology (M.Tech) in Power Systems Engineering | R.V.R. & J.C. College of Engineering
2021 - 2022
Bachelor of Technology (B.Tech) in Electrical & Electronics Engineering | Vignan's LARA Institute of Technology & Science
2014 - 2018

CERTIFICATIONS & CONTINUOUS LEARNING

  • Java Full Stack Development Specialization: Comprehensive training in Core Java, Spring Boot, Microservices Architecture, Spring Security, RESTful Web Services, React.js, and SQL.
  • Full Stack Web Engineering & Cloud Deployment: Specialized hands-on mastery in building end-to-end cloud-native web applications, containerization with Docker, and CI/CD pipelines.