2026 Nvidia HackerRank Test: Questions I Got and How I Passed

Silvia AN

·2025年10月13日

·6分钟阅读

My story of beating tiktok hackerrank in 2025 and what you can learn

Nvidia HackerRank Questions

Nvidia sent out an OA shortly after I applied. For the Software Engineer position I applied to, there were three questions in total, and I had 90 minutes to finish them. It was quite an intense process.

I’m really grateful to Linkjob.ai for helping me pass my interview, which is why I’m sharing my OA questions and experience here. Having an invisible AI interview assistant during the interview indeed provides a significant edge.

Question 1: Address on same page

A 4K page means each page is 4096 bytes. So, to check if two addresses are on the same page, I just need to see if they have the same page number. The page number is calculated by masking out the last 12 bits (since 2^12 = 4096). So, I wrote a function that does (addr1 & ~0xFFF) == (addr2 & ~0xFFF) and returns 1 if true, 0 otherwise. It’s a classic bit manipulation trick that’s super efficient. No loops, just a quick bitwise operation.

Question 2: Creating BitMask

For this bitmask problem, I thought about how to set bits from lo to hi (inclusive) to 1. First, a full mask of 1s up to hi is (1 << (hi + 1)) - 1, and then I need to subtract the mask that’s 1s up to lo - 1, which is (1 << lo) - 1. So the mask is ((1 << (hi + 1)) - 1) & ~((1 << lo) - 1). Then, converting that to a hex string (like 0x7 in the sample) is just a matter of formatting. I made sure to handle edge cases where lo is 0, and that worked like a charm.

The AI worked great and I got through my interview without a hitch. It’s also undetectable, I used it and didn't trigger any HackerRank detection.

Question 3: Maximum Score

This one felt like a greedy problem with a max-heap. Here’s what I did: I pushed all elements into a max-heap. Then, for each of the k operations, I extract the max element, add it to the score, compute its ceiling of one-third (which is (val + 2) // 3 to avoid floating points), and push that back into the heap. This way, we always pick the largest available element each time, which maximizes the score. The heap operations keep everything efficient even for large n and k, and it passed all the test cases smoothly.

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Nvidia Hackerrank Test Format

Test Requirement and Process

The NVIDIA HackerRank test varies across different teams.

Candidates who apply through the general online portal are usually required to complete an Online Assessment (OA), while those who apply via referral or Career Fair may skip this step.

Some teams conduct three interview rounds after the OA, and the overall process, from the first interview to receiving an offer, can take around two months.

Question Types and Language Rules

The test format depends heavily on the team. It’s important to read the job description (JD) carefully and choose a position that fits your background.

Some teams have specific language restrictions. For instance:

System teams only allow C language.
Infrastructure teams accept any language.

The question count and timing also differ:

System: 7 questions in 50 minutes
Infrastructure: 1 question in 25 minutes

Most problems are LeetCode-style algorithm questions that focus on fundamental data structures and coding logic.

Nvidia HackerRank OA Preparation Steps

Resources Used

When I started preparing for the Nvidia HackerRank, I wanted to cover all my bases. I gathered a mix of online and offline resources. Here’s what helped me the most:

I used Linkjob.ai for mock interviews. These sessions helped me practice coding questions and behavioral answers.
I focused on technical skills by working through system design problems and brushing up on algorithms.
I read about Nvidia’s culture. I made sure my experiences matched their focus on creativity and collaboration.

I also joined a few Discord study groups. Talking with others kept me motivated and gave me fresh perspectives.

Practice Routine

My practice routine changed as I got closer to the test date. At first, I set aside an hour each day for coding problems. I picked questions from LeetCode, but I also searched for ones that matched the Nvidia hackerrank format. I timed myself to get used to the pressure.

On weekends, I did longer mock interviews with friends. We swapped feedback and shared tips. I made a habit of reviewing my mistakes right after each session. I wrote down what I learned in a notebook. This helped me spot patterns and avoid repeating errors.

Lessons and Tips

Technical Advice

When I look back at my journey, a few technical strategies really made a difference. I want to share what worked for me and what top performers recommend:

I brushed up on my coding and SQL skills.
I spent extra time on LeetCode.
I always shared my thought process, even when I got stuck. Interviewers want to see how you think, not just the final answer.

Behavioral Tips

Technical skills matter, but behavioral questions can make or break your interview. Here’s what helped me shine:

I prepared for behavioral questions using the STAR method (Situation, Task, Action, Result). This structure kept my answers clear and focused.
I reviewed my past projects and thought about problems I solved.
I tailored my resume to highlight my skills and experience.
I followed up after applying to show my enthusiasm.

Beyond the OA and Into Technical Rounds

If your OA results meet the team's bar, you will move forward to the virtual interview phase.

Interview Structure and Timing

While the exact format varies by team, most Nvidia virtual interviews are scheduled for 90 minutes. Based on my experience and feedback from other 2026 candidates, here is how that time is typically split:

The Introduction (First 10 mins): The interviewers will introduce NVIDIA’s vision and the specific challenges of the role. This is your chance to show you’ve done your homework on their recent GPU or AI breakthroughs.
Experience Deep-Dive (Next 10 mins): You’ll discuss your previous programming experience. Expect follow-up questions that dig deep into your projects.
Core Technical Assessment (60 mins): The bulk of the interview focuses on live technical questions. Some efficient teams might wrap this up in 40 minutes, but you should be mentally prepared for a full hour of problem-solving.

Team-Specific Interview Flavors

Nvidia is decentralized, meaning different teams look for very different signals:

Infrastructure Teams: Infrastructure teams often skip basic OS or OOP theory to focus on how C++ works under the hood, memory handling, and making code run faster.
Systems & Software Teams: They usually focus more on the basics like how you handle concurrency, manage resources, and use bitwise operations, which is very similar to the logic you saw in the OA.

Preparation Strategy

Since interviewers will ask for a lot of detail about your resume, make sure you know every project you've listed inside out. Be ready to explain your technical choices clearly, even when they push for more specifics. If you're applying for a specialized team, review the languages and frameworks in the job description, as that’s exactly what they’ll test you on during the 60-minute technical block.

FAQ

Is Linkjob AI undetectable during technical interview rounds?

I didn't get caught. It’s a desktop app with OS-level integration, so it only shows up on my own screen. Screen sharing and active tab detection can't see it at all.

How did you submit your resume?

You can apply to NVIDIA through general applications, referrals, or at Career Fairs. I personally applied through a general application.

How long does it take to get an offer after passing NVIDIA’s HackerRank test and interviews?

The timeline varies by team, but for most groups with three interview rounds, it takes around two months from the first interview invitation to receiving an offer. Make sure to follow up politely with recruiters if you haven’t heard back after a reasonable period, as communication timelines can shift depending on the team’s hiring schedule and workload.