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Tejas R.

Tejas R.

Full Stack Engineer (Java, ReactJs)

I am a Full Stack Engineer with 6+ years of hands-on experience building robust, scalable applications across full-stack and backend domains. My core expertise spans Java, Spring Boot, Spring, JavaScript, Typescript, React.js, Node.js, SQL, and AWS enabling me to deliver end-to-end solutions that are performant, reliable, and user-centric. I have delivered projects across gaming platforms, eCommerce, Education and enterprise-grade web applications, serving 8,000+ active users with measurable business outcomes. My background in Java and ReactJs SQL analytics has driven data-informed decisions that improved player retention by 32% and boosted in-app revenue by 25%, while my full-stack experience has powered platforms with 99.8% uptime and 50,000+ daily API requests. With Java and backend development, I specialize in: • Building RESTful APIs and scalable service architectures • Developing responsive, mobile-friendly, and cross-browser compatible web applications • Designing scalable backend systems capable of handling high traffic and concurrent users • Optimizing application performance, database queries, and cloud infrastructure • SQL query optimization, data modeling, and analytics-driven development • Developing responsive and scalable web applications across frontend and backend systems • Seamlessly connecting frontend interfaces with backend services and databases • Optimizing application performance, reliability, and cloud infrastructure on AWS • User behavior analytics across 20+ KPIs using PostgreSQL and Java On the frontend and full-stack side, I bring solid React.js, Node.js, and MongoDB experience including Redux state management, and real-time WebSocket applications. I am known for: • Strong problem-solving and analytical thinking • Clean, maintainable, and performance-optimized code • Cross-platform development web, mobile, and streaming • Data-driven feature development and revenue optimization • Consistent delivery with 100% client satisfaction across 50+ freelance projects • Quick adaptation to new technologies and environments Here is a brief overview of my technical proficiency: Frontend & Backend : Java, Spring Boot, Spring, JavaScript, TypeScript, Python, React.js, Node.js, Databases: PostgreSQL, MySQL, MongoDB, SQLite Cloud & DevOps: AWS (Lambda, S3, EC2), Git, GitHub Actions, Linux Tools: Postman, Swagger, JIRA, Figma, VS Code Other: REST APIs, WebSockets, Three.js, Redux, JWT Auth I am available 40 hours per week and can comfortably overlap with IST, EST, and PST time zones to ensure smooth communication, daily updates, and timely delivery of milestones. I would be happy to connect and discuss how my experience can support your project requirements. Regards, Tejas R

🇮🇳Bengaluru, India$30/hr70% JSS5.00 (1)Since Apr 2026

Earnings and projects

MRR
$1.8k

Last 6 months ÷ 4.3 months active (since Jun 2026)

World#25,292 / 412k
🇮🇳Country#3,108 / 45.9k
Revenue, last 30 days
$0

Last 6 months: $7.8k

Total earnings
$7.9k

Billed in all: $8.5k

World#216,093 / 412k
🇮🇳Country#26,593 / 45.9k
Per project
$7.9k

$7.8k in the last 6 months

World#21,241 / 412k
🇮🇳Country#2,286 / 45.9k
Projects, last 6 months
1

Across 2 contracts

0% fixed100% hourly
World#128,092 / 412k
🇮🇳Country#14,379 / 45.9k
Projects in all
1

Across 2 contracts

0% fixed100% hourly
World#360,671 / 412k
🇮🇳Country#42,133 / 45.9k

Earnings, last 30 days

$8.5kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$8.4k$8.5k$8.6k$8.7kOct 8Oct 23Nov 7

Skill rankings: Top 6% in AWS CloudFront

Ranked by MRR among everyone on Upwork with the skill.

  1. #21AWS CloudFront366 freelancers · 🇮🇳 #5Top 6%
  2. #27Data Analysis Consultation327 freelancers · 🇮🇳 #6Top 8%
  3. #53Mobile Game715 freelancers · 🇮🇳 #8Top 7%
  4. #105NodeJS Framework1,512 freelancers · 🇮🇳 #41Top 7%
  5. #162Game Development2,586 freelancers · 🇮🇳 #20Top 6%
  6. #173Spring Boot2,150 freelancers · 🇮🇳 #32Top 8%
  7. #247App Development2,592 freelancers · 🇮🇳 #60Top 10%
  8. #520Android App Development6,395 freelancers · 🇮🇳 #157Top 8%