Accelya SDE Intern Interview Experience (2025) — Aviation Tech

I interviewed with Accelya for a Software Engineer Intern position. Accelya is an aviation technology company that's not well-known outside the industry, but they do interesting work in travel tech. The interview process was thorough but fair, with a strong focus on domain knowledge.

Here's my complete breakdown of the Accelya SDE intern interview.

Quick Stats

• Role: Software Engineer Intern
• Location: Bangalore, India (onsite)
• Year: 2025
• Timeline: ~3 weeks from referral to offer
• Rounds: Technical discussion → Coding assessment → 2 technical interviews → HR discussion
• Difficulty: Medium — domain knowledge + coding
• Outcome: Offer accepted
• Compensation: ₹25k/month base + performance bonus

I was a junior in college. A friend who worked at Accelya referred me.

Stage 1: Initial Technical Discussion

First round was a 45-minute technical discussion with a senior engineer. No coding, just conversation about:

• My experience with distributed systems
• Understanding of airline industry challenges
• Database knowledge

The domain question caught me off guard. I was honest that I didn't know much about aviation tech, which he appreciated. He then explained some core problems: inventory management, real-time pricing, handling massive transaction volumes.

Stage 2: Coding Assessment

Online coding test on HackerRank. 3 problems in 90 minutes.

Problem 1: Implement a thread-safe cache with TTL support. Problem 2: Given flight segments with departure/arrival times, find minimum aircraft needed. Problem 3: JSON parsing and transformation for airline booking data.

The problems felt relevant to their domain, not generic algorithm puzzles.

Stage 3: Technical Interview 1

Focused on Java and concurrency.

Questions:

• How does HashMap work internally?
• Difference between synchronized blocks and ReentrantLock
• How would you design a system processing 10,000 bookings per second?

For the system design question, I discussed event-driven architecture, message queues, and the saga pattern for distributed transactions.

Stage 4: Technical Interview 2

Focused on databases and performance.

Questions:

• How to optimize a slow query on a 100 million row table?
• Difference between clustered and non-clustered indexes
• Database schema migrations with zero downtime

Stage 5: HR Discussion

Standard HR round — compensation, notice period, career goals.

One Thing That Surprised Me

Accelya genuinely cares about whether you understand their domain. Aviation systems have real constraints — safety regulations, massive volumes, legacy systems. If you're interested in solving hard engineering problems in a domain that matters, Accelya is worth considering.

Compensation

Offer: ₹25,000/month base salary plus a performance bonus. For Bangalore, this is competitive for intern roles.

Frequently Asked Questions

How hard is the Accelya SDE intern interview? Accelya intern interviews are medium difficulty. They test both coding skills and domain knowledge. Expect questions on Java, concurrency, databases, and basic system design relevant to aviation tech.

How long does the Accelya intern interview process take? From referral to offer, expect 3–4 weeks. The process includes a technical discussion, coding assessment, 2 technical interviews, and HR discussion.

How much do Accelya SDE interns make? For 2025 in Bangalore, Accelya SDE interns can expect ₹20k–₹30k/month base salary plus performance bonus.