How should I prepare for an internship interview?

Research the company, prepare 3-5 stories about your projects using the STAR method, practice aptitude questions, and prepare your "Tell me about yourself" answer. Internship interviews are shorter than full-time interviews but test attitude, learning ability, and basic domain knowledge.

What are the most common internship interview questions?

Common questions include: Tell me about yourself, Why do you want to intern here, What are your strengths/weaknesses, Tell me about a project you built, Where do you see yourself in 5 years, and technical questions specific to the role.

How do I crack aptitude tests for campus placements?

Practice regularly with previous year papers, focus on Quantitative Aptitude, Logical Reasoning, and Verbal Ability. Use our free aptitude test section on MyInternships.in for timed mock tests. Most companies use 45-60 minute aptitude rounds.

What should I wear for an internship interview?

Business casual is standard for most Indian companies. For IT and startup companies, smart casual (neat shirt/blouse, formal trousers) is acceptable. For finance, consulting, and banking roles, formal attire (shirt, trousers/saree) is recommended.

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Thermo Fisher Scientific Interview Preparation

Medium-Hard

Technology · India

Thermo Fisher Scientific offers comprehensive, integrated solutions and workflows to support you in overcoming challenges across key markets and accelerating progress from research to application, including: Online-only discounts for a wide range of top scientific products Master water and nutrient analyses with the Gallery Aqua Master

280+ questions4 rounds5 expert tipshttps://www.thermofisher.com

About Thermo Fisher Scientific

Interview Rounds4

Online Assessment60–90 min

2–3 DSA coding problems on HackerRank, CodeSignal, or company platform

Technical Interview I45–60 min

Data structures & algorithms — arrays, trees, graphs, dynamic programming

Technical Interview II45–60 min

System design or low-level design — scalability, APIs, databases

HR / Culture Round30 min

Career goals, teamwork, strengths/weaknesses, role expectations

Practice Questions10

Key Topics

Data Structures & Algorithms150q
System Design50q
Object-Oriented Design40q
SQL & Databases25q
CS Fundamentals (OS, Networking)25q

Expert Tips

Practice LeetCode easy and medium problems before the OA — focus on arrays, strings, trees, and graphs.
For system design, use the RESHADED framework: Requirements, Estimation, Storage, High-level design, APIs, Detailed design, Evaluation.
Prepare 3–4 STAR stories covering: a challenge you solved, a time you worked in a team, a project you owned end-to-end.
After every coding solution, proactively state the time and space complexity — interviewers expect it.
Study common CS fundamentals: process vs thread, TCP vs UDP, REST vs GraphQL, SQL indexing, CAP theorem.

Internships at Thermo Fisher Scientific→Jobs at Thermo Fisher Scientific→Company Profile→