Joining Razer will place you on a global mission to revolutionize the way the world games. Razer is a place to do great work, offering you the opportunity to make an impact globally while working across a global team located across 5 continents. Razer is also a great place to work, providing you the unique, gamer-centric #LifeAtRazer experience that will put you in an accelerated growth, both personally and professionally.
The Senior Software Engineer, Payweb is responsible for designing, building, and operating full‑stack web‑based payment systems using a .NET backend and modern frontend technologies. This role focuses on correctness, reliability, and operational ownership of money‑moving workflows, including integration with external payment service providers and handling asynchronous and failure scenarios.
This position supports revenue‑critical systems and requires strong engineering judgment, end‑to‑end ownership, and accountability. The role also leverages AI‑assisted development tools to improve productivity while maintaining strict standards for financial correctness and system safety.
Design, implement, and maintain end‑to‑end payment flows using a .NET backend and web frontends, including checkout, top‑ups, subscriptions, refunds, and reversals
Build and operate APIs and services using C# / .NET (e.g. ASP.NET Core)
Develop and maintain frontend components using modern web frameworks (e.g. React or equivalent)
Integrate and operate third‑party payment service provider (PSP) APIs
Collaborate with backend, frontend, and platform engineers on payment state management, idempotency, and reconciliation
Handle asynchronous workflows including webhooks, retries, and partial failures
Ensure systems are observable through logging, metrics, and alerting
Participate in on‑call rotations and lead investigation and resolution of payment‑related production incidents
Review designs and implementations with a focus on failure handling, data integrity, security, and operational readiness
Apply AI‑assisted development tools (e.g. code generation, testing, debugging, analysis) to improve productivity, while ensuring all money‑related logic is reviewed, validated, and production‑safe
Contribute to continuous improvement of engineering standards, reliability practices, and development tooling
Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience
5+ years of professional software engineering experience
Strong experience building full‑stack web applications with .NET (C#) on the backend
Experience developing modern web frontends (e.g. React, Angular, or similar frameworks)
Hands‑on experience integrating payment systems or financial APIs
Solid understanding of distributed systems concepts, including idempotency, retries, and eventual consistency
Experience diagnosing and resolving production issues in revenue‑critical systems
Experience using modern developer productivity tools, including AI‑assisted coding or analysis tools, in a professional environment
Experience working with payment service providers (e.g. Stripe, Adyen, Braintree, or local PSPs)
Familiarity with wallets, balances, or ledger‑adjacent systems
Exposure to chargebacks, refunds, disputes, or fraud workflows
Experience operating high‑availability, revenue‑generating systems
Knowledge of compliance or regulatory requirements related to payments (e.g. PCI)
Experience with Southeast Asia payment methods (e.g. PayNow, GrabPay)
Work closely with backend, frontend, platform engineering, product management, and customer support teams
Interface with external payment providers during integrations and incident resolution
This role is responsible for systems where accuracy and reliability are critical
Participation in after‑hours incident response may be required
AI tools are used to augment development, but all production changes require human review and ownership
Razer is proud to be an Equal Opportunity Employer. We believe that diverse teams drive better ideas, better products, and a stronger culture. We are committed to providing an inclusive, respectful, and fair workplace for every employee across all the countries we operate in. We do not discriminate on the basis of race, ethnicity, colour, nationality, ancestry, religion, age, sex, sexual orientation, gender identity or expression, disability, marital status, or any other characteristic protected under local laws. Where needed, we provide reasonable accommodations - including for disability or religious practices - to ensure every team member can perform and contribute at their best.
Are you game?

Razer™ is the world’s leading lifestyle brand for gamers.
The triple-headed snake trademark of Razer is one of the most recognized logos in the global gaming and esports communities.
With a fan base that spans every continent, the company has designed and built the world’s largest gamer-focused ecosystem of hardware, software and services.
Razer’s award-winning hardware includes high-performance gaming peripherals and Blade gaming laptops. Razer’s software platform, with over 70 million users, includes Razer Synapse (an Internet of Things platform), Razer Chroma™ (a proprietary RGB lighting technology system), and Razer Cortex (a game optimizer and launcher).
In services, Razer Gold is one of the world’s largest virtual credit services for gamers, and Razer Fintech is one of the largest online-to-offline digital payment networks in SE Asia.
Founded in 2005 and dual-headquartered in Irvine and Singapore, Razer has 18 offices worldwide and is recognized as the leading brand for gamers in the USA, Europe and China.