01.Backend Engineer
PayPay India2 months ago
Gurgaon, IndiaMid Level
Responsibilities
- Design large-scale systems with high complexity for high-throughput payment applications.
- Use infrastructure to solve large-scale systems problems.
- Develop tools and contribute to open-source projects where possible.
- Support code in production and apply root-cause problem solving.
- Use AI tools for code reviews, testing, documentation, debugging, and productivity improvements.
Requirements
- At least 4 years of professional Java experience, or excellent programming skills in generalized languages such as Scala, Python, or Go for non-Java candidates.
- Ability and interest in learning additional programming languages as needed.
- Experience with NoSQL databases and distributed caches.
- Strong foundations in data structures, algorithms, and object-oriented programming.
- In-depth understanding of concurrency and distributed computing.
- A degree in Computer Engineering or Computer Science, or 5+ years of equivalent experience in SaaS platform development.
- Business-level English or Japanese proficiency.
- Preferred experience with RESTful APIs, publish/subscribe systems, database clients, AWS services, finance or payment systems, highly scalable web systems, and microservices.
- Experience leveraging AI/LLM-based tools in development, reviews, testing, debugging, and documentation while maintaining human oversight.
Tech Stack
Amazon DynamoDBApache KafkaApache SparkAWSDockerFlywayGoGoogle BigQueryGoogle Cloud PlatformGradleJavaJenkinsJUnitKibanaKotlinKubernetesMavenMySQLnpmPythonRedisScalaSpring BootYarn
Categories
About PayPay India
PayPay India develops software for PayPay Corporation’s smartphone payment platform in Japan, covering QR-code payments and related fintech services for consumers and merchants. Established in 2022 in Gurugram as PayPay’s second development center, it collaborates with teams in Japan and Canada and draws on technical ties with Paytm. The platform serves a nationwide user base in Japan and monetizes primarily through merchant acceptance fees and financial services.