Interview prep

DSA & Interview Preparation

Which DSA course does Joma Tech recommend?

Joma recommends two HireCade courses for coding interviews: Data Structures & Algorithms for Beginners to build fundamentals from scratch, and the Software Engineering Interview Prep Bootcamp for full FAANG-level preparation including system design and mock interviews.

  • Two courses: DSA for Beginners and the Software Engineering Interview Prep Bootcamp
  • Taught by Rituraj, a Meta alumnus and Y Combinator founder
  • Covers arrays, strings, stacks, queues, recursion, trees, hashing, and Big-O analysis
  • 20% off by mentioning “Joma Tech” on the interest form

Last updated

These programs are designed for candidates preparing for data structures, algorithms, and software engineering interviews at leading technology companies. The curriculum focuses on building strong fundamentals, problem-solving ability, and the confidence required to perform well in real interviews.

I'm currently working full-time at Meta and don't have the bandwidth to teach DSA personally. Rather than offering something half-baked, I recommend these courses instead. Full context: Where is Joma Tech and Who is Joma Tech.

The courses below are taught by Rituraj, a Meta alumnus and Y Combinator founder. I've personally taken his courses and can confidently recommend them. The explanations are clear, the fundamentals are strong, and the approach is very practical for interviews.

Why this course?

This course reflects the same standards I'd expect if I were teaching myself. There is no fluff, the problem-solving is solid, and the preparation closely mirrors real software engineering interviews.

Recommended DSA courses

Data Structures & Algorithms for Beginners

A beginner-friendly course that teaches data structures and algorithms from scratch. Covers arrays, strings, stacks, queues, recursion, trees, hashing, Big-O analysis, and interview-style problems to build strong problem-solving foundations.

How do I get 20% off?

Fill out the interest form on the course page and mention “Joma Tech” to get your discount. There is no coupon code.

Hiring now: remote AI training & data annotation

If you need income while you prep, this is the most realistic place to start. Remote data annotation, RLHF, and AI evaluator roles from the labs that train frontier models, updated daily.

Frequently asked questions

Quick answers about courses, discounts, and what I'm up to.

Who is Joma Tech?

Joma Tech is a YouTube channel and brand created by Jonathan Ma (Joma), a software engineer known for tech comedy, career stories, and interview prep content. Read more on the Who is Joma Tech page.

Where is Joma Tech now?

As of August 2026, I'm working full-time at Meta and not teaching courses. See Where is Joma Tech for the full update and what I recommend instead.

Do you still teach courses?

Not right now. Instead I recommend HireCade courses taught by colleagues from Meta and Google. Start with DSA & Interview Prep or Python.

How do I get a course discount?

You can get 20% off HireCade courses by mentioning “Joma Tech” on the interest form. There is no coupon code, HireCade applies it after you submit. Details on the Interview Prep Discounts and Course Discounts pages.

Where can I find remote AI training and data annotation jobs?

Browse them at dataannotationjobs.org/jobs. It aggregates remote data annotation, RLHF trainer, AI trainer, and LLM evaluator roles from Scale AI, Surge AI, Mercor, DataAnnotation, Micro1 and others, with nearly 800 listings refreshed daily and searchable by company, skill, and location.

What is a data annotation or RLHF job?

A data annotator labels text, images, audio, or video so models can learn from it. In 2026 that usually means ranking chatbot answers, writing better responses, or judging whether an AI output is accurate and safe. RLHF is reinforcement learning from human feedback: you compare two model answers, pick the better one, and explain why. Both are listed on dataannotationjobs.org/jobs.

How can I make money while I job hunt?

Remote AI training work is the most realistic option right now. It's contract work, so it fits around interview prep, and the specialist coding, legal, finance, and medical listings post $75 to $125+/hr, well above generalist labeling. Start with the open roles.

Where should I start if I am new?

If you're starting from zero, begin with Python. If you're prepping for coding interviews, go to DSA & Interview Prep. Or browse everything on the home page.