Senior Software Engineer (Payment, AI)

Location: Singapore

Company

hirify.global develops immersive virtual world experiences and games including Genshin Impact, Honkai: Star Rail, Honkai Impact 3rd, Tears of Themis, and Zenless Zone Zero.

What you will do

• Design, develop, and maintain core payment systems covering pay-ins, payouts, products, and marketing for multiple games and global users.
• Lead the adoption of AI-native workflows across payment development, operations, and support.
• Use LLMs for solution generation and evaluation, code generation and refactoring, code review, automated testing, alert diagnosis, and remediation.
• Build payment-domain intelligent agents for complaint investigation, business integration support, and payment operations.
• Collaborate with product, cross-functional, upstream, and downstream teams to develop productized AI applications for payment scenarios.
• Own AI-driven initiatives from 0 to 1, including proposals, implementation, launch, and continuous iteration.

Requirements

• Bachelor’s degree or above in Computer Science or a related field, with at least 3 years of software engineering experience.
• Solid understanding of mainstream AI technologies and large language model fundamentals, with hands-on experience using and optimizing modern AI tools.
• Experience building MCP servers, maintaining RAG systems based on vector databases, designing agent memory systems, optimizing and evaluating prompts, and designing collaboration and orchestration in multi-agent architectures.
• Strong curiosity, passion for learning, awareness of current industry and technology trends, and motivation to apply emerging AI technologies to real-world scenarios.
• Strong ownership mindset and ability to independently drive projects across all stages while coordinating with dependent teams and stakeholders.
• Understanding of web backend technologies including microservices, databases, caching, and message queues, with the ability to integrate AI capabilities into backend systems.
• Fluent English and Mandarin required for communication with internal stakeholders and external payment partners.

Nice to have

• Real-world experience developing AI-driven complex features for consumer-facing core business systems.

Culture & Benefits

• Work on mission-critical payment systems where technical excellence supports player experience and company revenue.
• Collaborate with global teams and payment partners across multiple markets.
• Join an equal opportunity environment that values diverse backgrounds.