AthenaHealth - MTS - Chennai
- Location
- Chennai
- Experience
- 3.5 years
- Posted
- 27 Feb 2026
Summary
I recently interviewed with athenahealth for an MTS role, which involved several rounds covering managerial, deep technical discussions, coding, and system design challenges. I navigated a diverse set of questions, from design patterns to database schema design and algorithmic problems.
How it went
🚀 athenahealth Interview Experience (via 3rd Party Payroll) – Detailed Rounds
Sharing my recent athenahealth interview experience — hope this helps others preparing.
🏢 Round 1 – Managerial + Technical Discussion (~30 mins)
This round was a mix of managerial and deep technical questions.
💻 Coding / Design
- Implement Singleton Design Pattern with
volatileobject (Also Discussed about volatile) - Thread-safe implementation discussion
💬 Conceptual Questions
- Elasticsearch basics
- CDC (Change Data Capture) concepts
- Kafka fundamentals
- Difference between
@Controllervs@RestController - How JSON req becomes POJO in springboot (Jackson)
🧑💼 Project Discussion
- Deep dive into my projects
- How I optimize large dataset responses
- How many instances we run in GCP and scaling considerations
🗄️ Design Questions
-
Design data entities for:
- 1–1 mapping
- 1–N mapping
- N–N mapping (Explained with real examples)
🏢 Round 2 – Technical + LLD (~45 mins)
💻 Coding Task
- Longest Increasing Continuous Subarray
- Clarified edge cases
- Interviewer mentioned only one valid sequence exists
- Asked to test multiple scenarios
🗄️ Database Design Task Requirement: School Identity Management System
Entities discussed:
- Students
- Subjects
- Examination types (half yearly, quarterly, annual)
- Marks
- Classes
Write a query to calculate student with highest marks in annual exam
💬 Scenario-Based Questions
- How I would create a new API
- Deployment approach
- Biggest problem I’ve solved
- How I debug production issues
Questions asked (6)
- 01
Implement Singleton Design Pattern with Volatile
Data Structures & Algorithms
Implement the Singleton Design Pattern, specifically discussing the use of a
volatileobject for thread safety, and also discussing the concept ofvolatile. - 02
Difference between @Controller and @RestController in Spring Boot
Other
Explain the key differences and appropriate use cases for
@Controllerversus@RestControllerannotations in Spring Boot. - 03
JSON to POJO Conversion in Spring Boot (Jackson)
Other
Explain the mechanism by which a JSON request payload is converted into a Plain Old Java Object (POJO) within a Spring Boot application, specifically detailing the role of Jackson.
- 04
Design Data Entities for Different Mappings
System Design
Design data entities to represent various relationships: one-to-one (1-1), one-to-many (1-N), and many-to-many (N-N) mappings, providing real-world examples for each.
- 05
Longest Increasing Continuous Subarray
Data Structures & Algorithms
Find the length of the longest increasing continuous subarray. I clarified edge cases, and the interviewer mentioned that only one valid sequence exists. I was asked to test multiple scenarios.
- 06
Design a School Identity Management System with Query
System Design
Design a database schema for a School Identity Management System. The system should manage entities such as Students, Subjects, Examination types (e.g., half-yearly, quarterly, annual), Marks, and Classes. Additionally, write a SQL query to identify the student with the highest marks in the annual exam.
How they prepared
My preparation involved solving approximately 1000 problems overall.