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JPMorganChase Software Development Engineer 2 Interview Experience

Software Development Engineer 2

JPMorganChase

August 22, 2026

26 Questions

Selected

Summary

AI Powered

The interview process at JPMorganChase consisted of four comprehensive rounds covering DSA, Core Java, System Design, Software Development Practices, and Managerial discussions. Round 1 focused on data structures, algorithms, and deep Java internals, while Round 2 evaluated high-level system design with a focus on dynamic pricing and concurrency. Round 3 deeply explored production-grade practices including Kafka, security compliance, Spring Boot, and Kubernetes/Istio deployments, concluding with a behavioral Round 4.

Round 1 (DSA / Java)

#1Group Birds by Color

Easy

Java

Grouping

Collections

DSA

Given a list of `Bird` objects containing properties `name` and `color`, group the birds by their color.

Group Birds by Color

Given a list of `Bird` objects containing properties `name` and `color`, group the birds by their color.

Java

Grouping

Collections

DSA

Easy

#2Valid Parentheses

Easy

Strings

Stack

DSA

Given a string containing `()`, `{}`, and `[]`, determine whether the brackets are properly balanced and valid.

Valid Parentheses

Given a string containing `()`, `{}`, and `[]`, determine whether the brackets are properly balanced and valid.

Strings

Stack

DSA

Easy

#3String Immutability and Thread Safety

Medium

Strings

Java

Concurrency

Explain how String immutability works in Java and how it contributes to thread safety.

String Immutability and Thread Safety

Explain how String immutability works in Java and how it contributes to thread safety.

Strings

Java

Concurrency

Medium

#4Java Pass-by-Value Semantics

Easy

Java

Core Java

Explain how parameter passing works in Java and clarify why Java is strictly pass-by-value.

Java Pass-by-Value Semantics

Explain how parameter passing works in Java and clarify why Java is strictly pass-by-value.

Java

Core Java

Easy

#5Shallow Copy vs Deep Copy

Medium

Java

OOP

Differentiate between a shallow copy and a deep copy in Java, explaining how object references are handled in each case.

Shallow Copy vs Deep Copy

Differentiate between a shallow copy and a deep copy in Java, explaining how object references are handled in each case.

Java

OOP

Medium

#6Usage and Mechanics of Object.clone()

Medium

Java

Core Java

Explain the mechanics, pitfalls, and implementation requirements of `Object.clone()` and the `Cloneable` interface in Java.

Usage and Mechanics of Object.clone()

Explain the mechanics, pitfalls, and implementation requirements of `Object.clone()` and the `Cloneable` interface in Java.

Java

Core Java

Medium

#7SOLID Principles in Java

Medium

Design Principles

OOP

SOLID

Explain each of the SOLID principles of object-oriented design and provide examples of how they are applied in Java development.

SOLID Principles in Java

Explain each of the SOLID principles of object-oriented design and provide examples of how they are applied in Java development.

Design Principles

OOP

SOLID

Medium

#8Java Reflection API

Medium

Java

Reflection

What is the Reflection API in Java, how is it used, and what are its pros, cons, and performance implications?

Java Reflection API

What is the Reflection API in Java, how is it used, and what are its pros, cons, and performance implications?

Java

Reflection

Medium

#9Java Exception Handling Improvements

Medium

Java

Exception Handling

Discuss best practices and modern improvements in Java exception handling (e.g., try-with-resources, multi-catch).

Java Exception Handling Improvements

Discuss best practices and modern improvements in Java exception handling (e.g., try-with-resources, multi-catch).

Java

Exception Handling

Medium

#10Java Memory Model and Concurrency

Hard

Java

Concurrency

JMM

Explain the Java Memory Model (JMM), the concept of happens-before relationships, memory visibility, and how `volatile` and synchronization work.

#10

Java Memory Model and Concurrency

Explain the Java Memory Model (JMM), the concept of happens-before relationships, memory visibility, and how `volatile` and synchronization work.

Java

Concurrency

JMM

Hard

#11ExecutorService vs CompletableFuture vs Virtual Threads

Hard

Java

Concurrency

CompletableFuture

Virtual Threads

Compare `ExecutorService`, `CompletableFuture`, and `Virtual Threads` (Project Loom) in Java. When would you choose one over the others?

#11

ExecutorService vs CompletableFuture vs Virtual Threads

Compare `ExecutorService`, `CompletableFuture`, and `Virtual Threads` (Project Loom) in Java. When would you choose one over the others?

Java

Concurrency

CompletableFuture

Virtual Threads

Hard

#12Connection Pooling vs Virtual Threads

Hard

Database

Java

Virtual Threads

How does the introduction of Virtual Threads impact connection pooling and resource management strategies in Java backend services?

#12

Connection Pooling vs Virtual Threads

How does the introduction of Virtual Threads impact connection pooling and resource management strategies in Java backend services?

Database

Java

Virtual Threads

Hard

#13Local Variable Type Inference (var) and Limitations

Easy

Java

Core Java

Explain the use of the `var` keyword for local variable type inference in Java and discuss its limitations and best practices.

#13

Local Variable Type Inference (var) and Limitations

Explain the use of the `var` keyword for local variable type inference in Java and discuss its limitations and best practices.

Java

Core Java

Easy

#14Sealed Classes in Java

Medium

Java

OOP

Explain the concept of Sealed Classes in Java, how they restrict inheritance, and why they are useful in domain modeling.

#14

Sealed Classes in Java

Explain the concept of Sealed Classes in Java, how they restrict inheritance, and why they are useful in domain modeling.

Java

OOP

Medium

#15Java Records

Easy

Java

Core Java

What are Records in Java? How do they differ from standard classes, and what boilerplate do they eliminate?

#15

Java Records

What are Records in Java? How do they differ from standard classes, and what boilerplate do they eliminate?

Java

Core Java

Easy

Round 2 (System Design)

#1Design a Flight Booking System with Dynamic Pricing

Hard

System Design

HLD

Dynamic Pricing

Design a Flight Booking System. Specifically focus on how you would dynamically change flight prices when a surge of users are searching for the same flight, factoring in dynamic pricing, demand signals, and concurrent flight searches.

Design a Flight Booking System with Dynamic Pricing

System Design

HLD

Dynamic Pricing

Hard

#2Redis Caching, Distributed Counters, and TTL

Medium

Caching

System Design

Redis

How would you utilize Redis caching, distributed counters, and cache expiration / TTL to handle high-frequency search traffic and demand detection?

Redis Caching, Distributed Counters, and TTL

How would you utilize Redis caching, distributed counters, and cache expiration / TTL to handle high-frequency search traffic and demand detection?

Caching

System Design

Redis

Medium

#3Preventing Double Booking and Managing Seat Inventory

Hard

Database

System Design

Concurrency

How do you maintain database consistency, prevent double booking of seats, and manage seat inventory during high-concurrency booking scenarios?

Preventing Double Booking and Managing Seat Inventory

How do you maintain database consistency, prevent double booking of seats, and manage seat inventory during high-concurrency booking scenarios?

Database

System Design

Concurrency

Hard

#4Scalability, Load Balancing, and Horizontal Scaling

Medium

Scalability

System Design

Load Balancing

Explain why Load Balancers are needed, how horizontal scaling is achieved, and how overall system scalability and availability are ensured.

Scalability, Load Balancing, and Horizontal Scaling

Explain why Load Balancers are needed, how horizontal scaling is achieved, and how overall system scalability and availability are ensured.

Scalability

System Design

Load Balancing

Medium

#5Asynchronous Processing and Event Failure Handling

Medium

System Design

Fault Tolerance

Async Processing

How do you handle asynchronous processing for payment and booking events, including handling failures and retries gracefully?

Asynchronous Processing and Event Failure Handling

How do you handle asynchronous processing for payment and booking events, including handling failures and retries gracefully?

System Design

Fault Tolerance

Async Processing

Medium

Round 3 (Software Development Practices)

#1Apache Kafka Producer/Consumer Architecture and Reliability

Medium

Distributed Systems

Kafka

Messaging

Explain core Apache Kafka concepts including Producers, Consumers, configuration parameters (`acks`, `batch.size`, `linger.ms`), and performance tuning strategies.

Apache Kafka Producer/Consumer Architecture and Reliability

Explain core Apache Kafka concepts including Producers, Consumers, configuration parameters (`acks`, `batch.size`, `linger.ms`), and performance tuning strategies.

Distributed Systems

Kafka

Messaging

Medium

#2PII Protection, Security, and Compliance in Event-Driven Systems

Hard

Security

Kafka

Compliance

PII

How do you ensure PII/PCI compliance and protect sensitive information before publishing events? Discuss encryption at rest vs in transit, masking, tokenization, and preventing sensitive data leakage in application logs.

PII Protection, Security, and Compliance in Event-Driven Systems

Security

Kafka

Compliance

PII

Hard

#3Spring Security Architecture and Custom Filtering

Medium

Spring Boot

Spring Security

JWT

Explain how JWT authentication is implemented in Spring Boot using `SecurityFilterChain`. How do you implement custom Spring Security filters and apply conditional filtering based on the request source?

Spring Security Architecture and Custom Filtering

Spring Boot

Spring Security

JWT

Medium

#4Kubernetes Architecture, Pod Lifecycles, and Scaling

Medium

Kubernetes

Containers

DevOps

Explain the relationship between Deployments, ReplicaSets, and Pods in Kubernetes. What happens when pods are deleted within a namespace, how do you scale deployments, and how do you properly stop an application?

Kubernetes Architecture, Pod Lifecycles, and Scaling

Kubernetes

Containers

DevOps

Medium

#5Canary Deployments with Istio

Hard

Kubernetes

DevOps

Istio

Canary Deployment

How do you implement a Canary Deployment running v1 and v2 simultaneously? Explain the role of Kubernetes labels/subsets, traffic splitting, header-based routing, and how Istio `VirtualService` and `DestinationRule` configure these flows.

Canary Deployments with Istio

Kubernetes

DevOps

Istio

Canary Deployment

Hard

Round 4 (Managerial)

#1Managerial and Behavioral Discussion

Medium

Behavioral

Leadership

Managerial

Typical managerial and behavioral questions assessing cultural fit, leadership, teamwork, and past project ownership.

Managerial and Behavioral Discussion

Typical managerial and behavioral questions assessing cultural fit, leadership, teamwork, and past project ownership.

Behavioral

Leadership

Managerial

Medium

Java Kubernetes System Design Spring Security DSA Apache Kafka Canary Deployment

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