Production engineering
Nikhil has built and scaled real-world Android products across demanding product and technology environments.
For experienced Android developers
You've been planning your next Android move for months. Let's finally make it.
Find what's really holding you back, prepare for the architecture and system-design rounds product companies actually test, and move into a stronger role — guided by Nikhil Rai, former Ola Maps architect.
13+ years in AndroidEx-Ola Maps architectFounder, Tech Leader Hub & Droid Skool
Free · 90 minutes · Live on Zoom · Next session Sunday, 11:00 AM IST
Nikhil Rai
Founder, Tech Leader Hub & Droid Skool
13+ years in AndroidOla Maps architectFounder, Tech Leader Hub & Droid SkoolOla · Gameskraft · PayU · Synchronoss
Does this sound like you?
Choose the one that sounds most like you.
None of these is a talent problem. Each one is a system problem.
You don't need another course. You need a system.
Too many experienced developers walk into 2026 interviews with 2021 preparation. More tutorials won't change that. Knowing exactly what product companies test, and preparing for it on purpose, will.
How Tech Leader Hub works
Three stages, built around your next career move rather than a syllabus.
Diagnose
Find out exactly why you're stuck, whether it's technical depth, architecture, interview performance or how your profile reads.
Rebuild
Close the gaps interviewers actually test, and turn your experience into evidence a product company can see.
Land
Walk into interviews prepared, handle the offer conversation with confidence, and step up as a leader.
Join the free masterclass
See the full approach live, and ask Nikhil your questions.
Real-world Android expertise
Where production experience becomes career advantage.
Nikhil Rai is the Founder of Tech Leader Hub and Droid Skool. His experience spans product companies, high-scale Android systems, architecture, technical leadership and developer mentorship.
Nikhil Rai
Founder, Tech Leader Hub & Droid Skool
13+
Years in Android
Ola
Maps architect
Founder
Tech Leader Hub & Droid Skool
Architecture & leadership
His work sits beyond feature coding — architecture, technical decisions, scalability and the engineering trade-offs that senior interviews test.
Career acceleration
Droid Skool builds practical Android capability; Tech Leader Hub turns experienced engineering depth into stronger interviews, positioning and technical leadership.
Engineering career across
OlaGameskraftPayUSynchronoss
A difficult start in Bangalore. No campus placement — just a decision to keep learning and building.
PayU and product engineering. Real payments and product work shaped the engineering depth behind the teaching.
Ola Maps architecture. Led and architected Android mapping and navigation experiences at scale.
Today. Founder of Tech Leader Hub and Droid Skool, turning that experience into practical career systems.
Developers who've worked with Nikhil
Shared by Droid Skool mentees, in their own words.
“Building apps with Clean Architecture and Dependency Injection taught me the 'why' behind architectural decisions, not just the 'how'. Now, I can independently design scalable applications, and my confidence in technical interviews has skyrocketed.”
Supratim BhattacharyaSenior Software Platform Engineer, Kochava“As a Flutter developer, I wanted to dive into native Android but wasn't aware of the deeper mechanics behind advanced concepts… I finally got hands-on knowledge of advanced native topics I had only heard about before.”
Parth MittalSenior Mobile Developer, Arks Ventures“Before this program, I knew Android basics but was always confused about which architecture and structure to use in real projects… Since joining, I have successfully built two professional-level apps with proper architecture.”
Chandan BadtyaSoftware Development EngineerBook series
Read the first part of every book, free.
Nikhil's books are written for Android engineers with real delivery experience who want the architecture, system design and leadership judgement that the next role assumes you already have. Every book opens with chapters you can read free in your dashboard.
- The opening chapters of every book, read page by page in your dashboard
- Create an account and they are yours to read, on any plan
- Carry straight on with the full book whenever you are ready
Choose the right Android career path
Start where you are. Grow with the right platform.
Tech Leader Hub is designed for experienced Android engineers ready for a career move. Droid Skool is the starting point when you still need to build Android fundamentals, projects and job-readiness.
Tech Leader Hub — accelerate your career
- You work as an Android developer and have a few years of real production experience.
- You've been wanting to switch, or interviewing, for months without the result you want.
- You're ready to change how you prepare, not just prepare more.
Droid Skool — learn, build and get job-ready
- Learn Kotlin and Android through practical, structured training.
- Build real apps and portfolio-ready projects.
- Get mentorship, feedback and interview preparation.
Already have solid Android production experience? Start with the free Tech Leader Hub masterclass. Still building your foundation? Start with Droid Skool.
30-second career readiness check
How ready are you for your next Android move?
Answer five quick questions. Nothing is saved, and there is no login.
1. I can explain my app's architecture trade-offs clearly in a senior interview.
2. I can design a mobile system and defend the major technical trade-offs.
3. I can explain Kotlin coroutines and concurrency beyond API-level usage.
4. My resume and LinkedIn show measurable ownership, impact and senior-level scope.
5. I can handle Android architecture and system-design follow-up questions without losing structure.
Questions developers ask
What is Tech Leader Hub?
Tech Leader Hub is a career acceleration platform for experienced Android developers who want to move into stronger product-company roles and grow toward technical leadership. It was founded by Nikhil Rai, a former Ola Maps architect with more than 13 years in Android.
See how it worksWho is Nikhil Rai?
Nikhil Rai is an Android architect and career coach with more than 13 years of experience at Ola, PayU and Gameskraft, and the founder of Tech Leader Hub and Droid Skool.
Read his storyWho is Tech Leader Hub for?
Tech Leader Hub is for working Android developers who have been wanting to switch jobs for months, or have been interviewing without converting, and are ready to fix what's actually holding them back. It isn't designed for beginners learning Android for the first time.
Check if it's a fitI've wanted to switch jobs for months but keep delaying. Where do I start?
Start by finding out exactly what's holding you back before you study anything new. Most developers who delay aren't short on time; they're missing a clear picture of what product companies test and how far they are from it. The free live masterclass is the quickest way to get that picture.
Join the free masterclassWhy do experienced Android developers fail product-company interviews?
Most experienced Android developers fail on depth and communication, not on syntax. Product companies test architecture decisions, system design and how clearly you explain trade-offs, while many developers prepare by solving more coding problems. Closing that gap is the core of Tech Leader Hub.
How is Tech Leader Hub different from an Android course?
Tech Leader Hub isn't a course. A course teaches topics to everyone in the same order; Tech Leader Hub works on your specific career move, starting from a diagnosis of your gaps and ending with the interviews and offer in front of you.
Can I prepare while working full-time or serving my notice period?
Yes. Tech Leader Hub is built for working engineers, so the work is planned around a full-time job, and the notice period is treated as part of the strategy rather than an obstacle.
Is Tech Leader Hub only for Android developers?
Today, yes. Android is where Tech Leader Hub starts because that's where Nikhil's 13+ years of experience lie. The longer-term plan is to support backend, full-stack, staff and architect career paths as well.
Does Tech Leader Hub guarantee a job?
No. Tech Leader Hub does not guarantee a job or an interview call. What Tech Leader Hub gives you is an exact career path: identify the gaps holding you back, strengthen your profile and positioning, build the skills product companies test, and prepare deliberately to handle technical, architecture and system-design interviews with confidence.
How do I get started with Tech Leader Hub?
Join the free 90-minute live masterclass. You'll see the gaps that keep experienced Android developers stuck, and leave knowing what to work on next.
Join the free masterclass
Stop waiting for the right time. Start with a clear plan.
Join the free 90-minute live masterclass and leave knowing exactly what to work on next.
Architecture & system designInterview strategyCareer positioning
Free · 90 minutes · Live on Zoom · Every Sunday, 11:00 AM IST
Join the free masterclass