[About the role]
We are looking for a skilled Backend Engineer with deep fintech and payments expertise to join our core payments team. In this role, you will be at the heart of building and scaling our UPI payment infrastructure covering P2P, P2M, QR, and Autopay flows and ensuring it operates reliably at consumer scale. You will work directly with PSPs, banks, and the NPCI UPI stack, designing systems that are not just fast and fault-tolerant, but built to handle the nuances of real-world payment flows: idempotency, retries, reversals, and full transaction lifecycle management.
[Key Responsibilities]
- Build and scale UPI payment systems (P2P, P2M, QR, Autopay etc.)
- Integrate with PSP/banks and NPCI UPI stack
- Design reliable transaction systems (idempotency, retries, reversals)
- Develop low-latency, high-throughput microservices
- Implement secure payment flows (device binding, authentication, encryption)
- Ensure end-to-end transaction security and data protection
- Manage transaction lifecycle, logs, and reconciliation
- Collaborate on integrations with rewards, wallet, and checkout systems
[Required Experience]
- 3–8+ years of backend engineering experience
- Fintech/payments experience (mandatory)
- Experience in high-scale consumer apps
- Strong understanding of UPI architecture & flows
- Experience with bank/PSP integrations
- Solid understanding of security in fintech systems:
- Encryption (data in transit & at rest)
- Tokenization & secure key management
- Authentication & authorization (OAuth/JWT)
- Experience building scalable, fault-tolerant systems
- Experience with wallets, ledgers, or reconciliation systems
- Familiarity with NPCI certification processes and RBI PPI/wallet guidelines
Skills Required
- 3-8+ years of backend engineering experience
- Fintech/payments experience
- Experience in high-scale consumer apps
- Strong understanding of UPI architecture & flows
- Experience with bank/PSP integrations
- Solid understanding of security in fintech systems
- Experience building scalable, fault-tolerant systems
- Experience with wallets, ledgers, or reconciliation systems
- Familiarity with NPCI certification processes and RBI PPI/wallet guidelines
What We Do
Headquartered in South Korea, KRAFTON, Inc. is dedicated to discovering and publishing captivating games that offer fun and unique experiences. Established in 2007, KRAFTON is home to globally renowned developers that include Striking Distance Studios, Unknown Worlds, VECTOR NORTH, Neon Giant, KRAFTON Montréal Studio, Bluehole Studio, RisingWings, 5minlab, Dreamotion, ReLU Games, and Flyway Games. Each studio strives to continuously take on new challenges and leverage innovative technologies with a goal to win over more fans by broadening KRAFTON’s platforms and services. KRAFTON India has established itself as a trailblazer in the gaming industry, driven by its unwavering commitment to delivering distinctive and enjoyable gaming experiences. We take immense pride in our premier entertainment properties that include highly popular titles like BATTLEGROUNDS MOBILE INDIA (BGMI), Road To Valor: Empires, Garuda Saga, Defense Derby, New State Mobile. These games have not only captured the hearts of Indian players but have also played a pivotal role in fostering a thriving e-sports ecosystem in the country. By organizing India-centric events and delivering localized content, KRAFTON India has made substantial contributions to the growth of e-sports in India. With an active investment approach, KRAFTON India has strategically channeled over $150 million into the Indian market over between 2021 to 2023 and recently announced another 150$ million to the Indian start-up ecosystem for the next two years. These investments primarily target gaming, technology start-ups, and media and entertainment sectors. With an India-first approach, KRAFTON remains committed to fostering holistic growth of the gaming and startup ecosystem in the country and as a part of this objective, KRAFTON launched KRAFTON India Gaming Incubator in October 2023 (KIGI).
