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Senior Backend Engineer

PayPay India
Gurugram, Haryana

Apply Now

Job details

Qualifications

Spring Boot
Kotlin
Go
Gradle
Law
Computer Science
JUnit
IntelliJ
Kubernetes
Spark
Slack
NoSQL
Git
English
Japanese
Java
Master's degree
Databases
Microservices
SQL
OOP
AWS
Docker
Distributed systems
Scala
Redis
Back-end development
REST
Computer Engineering
GitHub
APIs
Kafka
DynamoDB
Maven
AI
Jenkins
Python
Spring framework
MySQL

Full job description

About PayPay India

PayPay, a fintech company providing a service enjoyed by over 70 million users (as of July 2025) merely 7 years since its launch in 2018 in Japan. The company is now home to a very diverse team of members from more than 50 countries. We grew to a team of several thousand employees in Japan but are far from over. We are still in the Day 1. Every day, new members join us from all over the world to create new value and deliver it to society.

Why India ?

To build our Payment services, we got technical cooperation from Paytm (A large payment service company in India). And based on their customer-first technologies , we created and expanded the smartphone payment service in Japan. Therefore, we have decided to establish a development base in India, because it is a major IT country with many talented engineers, as evidenced by the fact that cutting-edge mobile payments can continue to be generated.

OUR VISION IS UNLIMITED

We dare to believe that we do not need a clear vision to create a future beyond our imagination. PayPay will always stay true to our roots and realise a vision (future) that no one else can imagine by constantly taking risks and challenging ourselves. With this mindset, you will be presented with new and exciting opportunities on a daily basis and have the opportunity to grow and reach new dimensions that you could never have imagined.

AI-First Culture at PayPay

At PayPay, we believe the future of software development is AI-augmented engineering. Every engineer is expected to actively leverage AI tools for code reviews, testing, documentation, debugging, and productivity improvements. AI is not optional — it is a mandatory part of our daily engineering workflow. Candidates must demonstrate both hands-on experience and the right mindset to integrate AI effectively into their workflow, while maintaining the engineering rigor, ownership, and problem-solving skills that only humans can provide.

Job Description

PayPay India is looking for a Senior Backend engineer to work on our payment system to deliver the best payment experience for our customers.

Main Responsibilities

Design large scale systems with high complexity to support our high throughput applications.
Understand how to leverage infrastructure for solving such large scale problems.
Develop tools and contribute to open source wherever possible.
Adopt problem solving as a way of life – always go to root cause! Support the code you write in production.
[Extra requirements depending on the potential team it has been identified]

Tech Stack

Qualifications

6+ years of experience having excellent skills in Java & any other generalized programming language, such as Scala, Python, or Go.
Interest and ability to learn other coding languages as needed.
Experience with SQL and NoSQL databases, along with distributed cache.
Strong fundamentals in data structures, algorithms and object oriented programming.
In-depth understanding of concurrency and distributed computing.
Experience implementing platform components such as RESTful APIs, Pub/Sub Systems, and Database Clients.
Experience with microservices.
Experience designing high traffic systems.
Degree in Computer Engineering or Computer Science or 5+ years equivalent experience in SaaS platform development.
Business of English or Japanese
[Extra requirements depending on the potential team it has been identified]

Preferred Qualifications

- Experience in working for system development in finance, payment, or similar industries.
- Language ability in Japanese and English is a plus (We have a professional translator but it is nice to have language skills).
- Experience with AWS services.
- Leverage AI/LLM-based tools in daily workflows (e.g., code development, reviews, testing, debugging, documentation), while ensuring human oversight, judgment, and accountability drive the final product.
- [Extra requirements depending on the potential team it has been identified]

Remarks

＊Please note that you cannot apply for PayPay (Japan-based jobs) or other positions in parallel or in duplicate.

PayPay 5 senses

Please refer PayPay 5 senses to learn what we value at work.

Apply Now

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About PayPay India

Why India ?

OUR VISION IS UNLIMITED

AI-First Culture at PayPay

Job Description

Main Responsibilities

Tech Stack

Qualifications

Preferred Qualifications

Remarks

PayPay 5 senses

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