Live Online · Limited Seats
Est. 2021 · Bhubaneswar / Bangalore
India's Practical Java Lab
N° 001 Senior Engineer · 7 Years In Production

Java taught by someone who ships it.

Java Skills + Real Projects = Dream Job
GET HIRED. NOT JUST TRAINED
JavaNoxLab — TCS Bhubaneswar workplace
From the trenches of real production engineering

I'm Swaraj Nayak — currently a Senior Software Engineer at TCS Bhubaneswar, with 7+ years building production Java systems at companies like Digit Insurance. JavaNoxLab is where I teach what working engineers actually need: not syntax — judgement.

7+
Years Industry
100+
Students Trained
4.9★
Avg. Rating
JAVA SPRING BOOT SQL MICROSERVICES KAFKA REDIS AWS POSTGRESQL HIBERNATE JPA JAVA SPRING BOOT SQL MICROSERVICES KAFKA REDIS AWS POSTGRESQL HIBERNATE JPA
01 / Why JavaNoxLab

Most courses
teach syntax.
I teach judgement.

Anyone can read documentation. What separates working engineers from the rest is knowing what tradeoffs to make, where things break in production, and how to debug when nothing in the textbook applies.

01 / 06

Real industry context

Every concept tied to how it's actually used in production — at companies handling millions of transactions and 15-20 Crore in monthly revenue. No toy examples.

02 / 06

Senior engineer's lens

I've led teams of 10, mentored junior devs, and conducted technical interviews. You'll learn what hiring managers actually look for in a backend engineer.

03 / 06

Beyond the basics

Java 8 streams, Spring Boot microservices, performance tuning, Kafka, Redis caching, system design — the stack that real engineers use every day.

04 / 06

Live, interactive

Every class is live. Ask questions in real time. Code along. Get instant feedback. No watching pre-recorded videos at 2x and hoping you understood.

05 / 06

Interview prep built-in

Mock interviews, DSA, system design walkthroughs — and the same Java 8 questions I've personally been asked at top product company interviews.

06 / 06

Small batches

Limited seats per batch so I actually know your name, your code, and where you're stuck. You're not a row in a spreadsheet — you're a student.

/ Currently · Senior Engineer

From production
to your screen.

Current
TCS
Senior Software Engineer
Current
Previously
Digit Insurance
Sr. Engineer · Team Lead · Travel API Platform
02 / Course Tracks

Three tracks.
Pick where you are.

Whether you're starting from zero, prepping for interviews, or trying to break into backend roles — there's a track designed for exactly that goal.

01

Core Java

Beginner → Solid Live Online

The foundation every backend engineer needs. We go deep into OOP, collections, multithreading, and Java 8+ features the way they're actually used in production code — not the way textbooks describe them.

  • OOP & design principles
  • Collections framework deep-dive
  • Java 8 streams & lambdas
  • Multithreading & concurrency
  • Exception handling patterns
  • Functional interfaces
  • JVM internals & GC tuning
  • Real coding interview prep
02

Java + SQL

Intermediate ★ Most Popular

Backend developers don't write Java in isolation — they query databases. This track ties Java tightly to SQL: JDBC, JPA/Hibernate, query optimization, and how to design schemas that scale.

  • Everything in Core Java
  • SQL fundamentals → advanced
  • Joins, subqueries, window functions
  • Indexes & query optimization
  • JDBC & connection pooling
  • JPA / Hibernate ORM
  • PostgreSQL & MySQL
  • Transactions & isolation levels
03

Java + Spring Boot + SQL

Job-Ready Backend Capstone Project

The complete backend developer track. Build real REST APIs, microservices, and integrate with Kafka, Redis, and AWS — the exact stack used at companies hiring backend engineers in India today.

  • Everything in Java + SQL
  • Spring Core, MVC & Boot
  • RESTful API design
  • Microservices architecture
  • JWT & authentication
  • Kafka & async messaging
  • Redis caching strategies
  • Capstone: production-grade project
03 / The Trainers

Taught by engineers
who actually ship.

Every trainer at JavaNoxLab is an active industry professional — not a full-time teacher. What you learn here comes straight from production systems, real codebases, and live interviews.

B
Bikas Samal
◆ 5 Years Industry Experience

Specialises in Core Java and collections deep-dives. Known for making multithreading finally click for students who've been confused for years.

Java 8+ Collections Multithreading DSA
R
Raheem Shaikh
◆ 5 Years Industry Experience

Backend engineer with deep SQL and Hibernate expertise. Teaches query optimisation the way it's actually done when production is on fire at 2 AM.

SQL Hibernate JPA PostgreSQL
S
Sangita Khandual
◆ 6 Years Industry Experience

Spring Boot and microservices specialist. Has built REST APIs serving millions of requests. Her capstone projects are what students put on their resumes and get hired for.

Spring Boot Microservices REST APIs Kafka
/ Real Results. Real Jobs.

Your Batchmate
Just Got Placed.
You?

JavaNoxLab students don't just learn Java — they get hired. Through industry referrals, project portfolios, and interview coaching, we make sure your skills actually land you a job.

93%
Students placed within 6 months
Average salary hike after training
50+
Companies hired our students
100%
Industry referral network access
🤝
Industry Referrals

Our trainers work at TCS, Digit Insurance and top product companies. When you're ready, we refer you directly — skipping the resume black hole. A referral from inside the company changes everything.

🚀
Job-Ready Projects

You'll graduate with a real Spring Boot capstone project on GitHub — REST APIs, Microservices, Kafka, Redis. Three of our students got their first interviews purely because recruiters clicked their GitHub link.

🎯
Interview Coaching

We run mock interviews with the exact Java 8, Spring Boot, and SQL questions asked at TCS, Infosys, Wipro, Cognizant, and product startups — so you walk in prepared, not nervous.

04 / Student Stories

Engineers who
finally feel ready.

These are people who joined when they were stuck in support roles or struggling with interviews — and came out the other side as confident backend developers.

★★★★★

"Awesome." Bikas sir's teaching style is so clear. I finally understood Java streams after struggling for months. Real production examples made all the difference.

A
Aditya Krishnan
Batch of Bikas Samal · Bangalore
★★★★★

"Nice." Raheem sir explains SQL and Hibernate so patiently. I was copy-pasting queries blindly before. Now I actually understand why queries are slow and how to fix them.

P
Priya Reddy
Batch of Raheem Shaikh · Hyderabad
★★★★★

"Brilliant." Sangita ma'am's Spring Boot sessions are gold. She shares real bugs from production and asks us to debug them. Got promoted from QA to backend dev at my company.

R
Rohan Deshpande
Batch of Sangita Khandual · Pune
★★★★★

"Incredible." Bikas sir made me restart from collections and streams the right way. Within 3 months I cleared Cognizant and Wipro both. The Java+SQL combo is the one.

S
Sneha Iyer
Batch of Bikas Samal · Chennai
★★★★★

"Wow." Raheem sir's live batch is small — he actually knows your name and your code. Every doubt gets answered in real time. Felt personal, not like a lecture at all.

V
Vikram Singh
Batch of Raheem Shaikh · Delhi NCR
★★★★★

"Game-changer." Sangita ma'am's capstone project is on my GitHub and resume. Three recruiters asked me about it. Got an offer from a Bangalore startup as backend engineer.

M
Manish Patnaik
Batch of Sangita Khandual · Bhubaneswar
05 / Common Questions

Things people
ask before signing up.

Do I need prior coding experience? +
For the Core Java track, no — we start from absolute basics. For the Java + SQL combo and the Spring Boot track, basic programming familiarity helps but isn't mandatory. We'll cover fundamentals as needed.
How are classes conducted? +
All classes are 100% live and online (Google Meet / Zoom). Sessions are interactive — you can ask questions in real time, code along, and get immediate feedback. Recordings are shared after each session for revision.
What's the batch size? +
Intentionally kept small — 12 to 15 students per batch — so I actually know everyone's progress, code, and where they're stuck. Bigger isn't better for learning.
Is interview preparation included? +
Yes, every track includes interview prep — DSA fundamentals, mock interviews, system design questions, and the actual Java 8 / Spring Boot questions asked at companies like TCS, Infosys, Cognizant, and product startups.
Do you provide a certificate? +
Yes, you'll receive a JavaNoxLab course completion certificate. More importantly, you'll have a real, deployable capstone project on GitHub that you can show in interviews — that matters far more than any certificate.
What if I miss a class? +
No problem — every session is recorded and shared. You can also book a 30-minute one-on-one doubt session with me to catch up on missed concepts.
How much does it cost? +
Pricing varies by track and current batch availability. The best way to get accurate, current pricing is to book a free demo class — you'll get to see how I teach before committing, and I'll share full pricing and batch dates then.
/ Take the next step

Ready to actually
understand Java?

Book a free demo class. Try one session. If it's not for you, no obligation. If it is — let's build your career.

/ Phone
+91 70086 73347
/ Based In
Bhubaneswar · Online