I recently interviewed for the Winter Intern role at Trilogy Innovations through an on-campus opportunity. Sharing my full experience to help others preparing for Trilogy rounds.
1. Resume Shortlisting
The first step was resume shortlisting. Make sure your resume is clean and highlights:
- Strong DSA/Competitive Programming background
- Projects with quantitative impact
- Good CS fundamentals
They grill you on every line in later rounds.
2. Round 1 – Online Assessment (3 DSA Coding Questions)
Difficulty:
- Q1 – Easy
- Q2 – Medium/Hard
- Q3 – Medium/Hard
My performance:
- Solved 2 questions completely
- Third question failed on 1 test case
3. Round 2 – Cognitive Ability / Crossover Test
Platform: CodeSignal
Questions: 50
Duration: 20 minutes
Cutoff: Need to answer >40 to qualify
Includes:
- Aptitude
- Logical reasoning
- Pattern recognition
- English language
Difficulty: Medium
Time management matters a lot.
4. Round 3 (R0) – Experience + CS Fundamentals Interview
Interviewer: 1
Duration: ~40 minutes
What was covered:
- Detailed discussion on my past experience
- Project explanation
- CS fundamentals
- Resume deep-dive
Advice:
Read your resume carefully — they will ask about every point, especially any quantitative data or metrics you mention.
5. Round 4 (R1) – Technical + DSA + CS Fundamentals
Interviewers: 2
Duration: Scheduled for 1 hour but extended to ~1 hour 35 minutes
Breakdown:
- Discussion about my experience
- Projects explained in depth
- CS fundamentals (OS, DBMS, CN, OOP)
- One Hard Graph DSA question
- First discussed the approach
- Then a detailed discussion on why this approach, possible alternatives, and trade-offs
- Then coded and tested
Advice: Have good CP/advanced DSA knowledge — they go deep.
The DSA question here is the real decider.
Final Outcome
Unfortunately, I couldn't make it to the last AI interview round as I took extra time to solve the hard DSA question in the R1 interview.
Still, the entire process was a great learning experience.
Key Takeaways
- Practice hard problems on graphs, DP, trees
- Be very confident about every project line and metric you mention
- Strengthen CS fundamentals
- Manage time effectively in coding interviews