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Job Description PayPay India is looking for a 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. Tech Stack We select the best combination of tech at times. | Java, Kotlin, Scala | Spring Boot, JUnit, Reselience4j, Feign | MySQL/AuoraDB, DynamoDB, ELK, Kafka, Redis, TiDB | Docker, Kubernetes, ArgoCD, AWS, GCP | GitHub, IntelliJ, Gradle, Maven, npm/yarn, Flyway, Jenkins, snyk, | Bigquery, Kibana, Spark | PlantUML, draw.io, miro.com | Slack, Zoom Qualifications 4+ years of Experience in using Java under professional environment, or if you are non-Java user, excellent skills in generalized programming languages, such as Scala, Python and Go. Interest and ability to learn other coding languages as needed. Experience with NoSQL databases and distributed cache. Strong fundamentals in data structures, algorithms and object oriented programming. In-depth understanding of concurrency and distributed computing. Degree in Computer Engineering or Computer Science or 5+ years equivalent experience in SaaS platform development. Business of English or Japanese Preferred Qualifications Experience with implementing platform components such as RESTful APIs, Pub/Sub Systems, Database Clients. Experience with AWS services. Experience in working for system development in finance, payment, or similar industries Experience in system design, development of web system which handles massive amount of transactions or requires scalability Experience in microservices 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. 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.
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.