Software Engineer, Global Payment Systems (Intern)

Corporate Development Group (CDG) as the platform for the company's new business incubation and new business exploration, CDG is responsible for promoting development and innovation for important areas such as financial technology and advertising, as well as marketing services, including payment and financial applications. As a professional support platform, CDG also supports the company and various business groups in strategic planning, investments and mergers, investor relations and corporate global communications, marketing and public relations, and more.

What The Role Entails

Position Overview

We are seeking a highly motivated Software Engineering Intern to join our Global Payment Systems team in Singapore. In this role, you will contribute to the architecture and optimization of high-scale, low-latency payment infrastructure. You will work alongside senior engineers to design robust financial systems, implement clean, maintainable code, and explore the frontier of AI-driven engineering. This is an ideal role for a high-potential engineer looking to solve complex algorithmic challenges in the dynamic world of fintech.

• Bank Integration: Assist in the design and implementation of secure API integrations with global banking partners to expand and strengthen our cross-border payment network.
• Forex Infrastructure: Contribute to the development and scaling of our Forex (FX) pricing systems, ensuring real-time accuracy and reliability in currency conversion logic.
• System Development: Architect, develop, and maintain high-performance backend services using Java and Spring.
• Database Engineering: Design and optimize scalable database schemas to support high-volume transaction processing and data integrity.
• AI Integration: Actively research and prototype AI-powered coding tools and autonomous agents to streamline our development workflows and operational efficiency.
• Optimization: Apply expertise in data structures and algorithms to enhance system throughput and minimize latency in transaction execution.
• Code Quality: Utilize established design patterns to ensure all developed systems are scalable, maintainable, and robust.

• Academic Qualification: Currently pursuing a Bachelor’s or Master’s degree in Computer Science or a related technical discipline, with graduation expected between 2026 and 2027.
• Availability: Able to commit to a full-time or part-time internship for a duration of 6 months.
• Core Proficiency: Solid foundation in Java and the Spring ecosystem. Experience with MySQL and complex database schema design.
• Financial Precision: Familiarity with high-precision arithmetic (e.g., BigDecimal in Java) and an understanding of how to handle currency calculations and rounding rules in a distributed environment.
• Integration Skills: Knowledge of RESTful API design and security protocols (OAuth2, TLS, Digital Signatures) essential for secure bank and third-party provider integrations.
• Algorithmic Rigor: Strong command of data structures and algorithms, with the ability to translate complex logic into efficient, clean code.
• Design Excellence: Demonstrated experience or deep understanding of design patterns to support long-term maintainability.
• AI Curiosity: A passionate interest in the evolving landscape of AI-assisted software development and the architecture of AI agents.
• Preferred Qualifications: Experience with multi-threading and low-latency system development is highly regarded.
• Language Skills: Proficiency in both English and Mandarin Chinese is required to facilitate effective collaboration with our cross-border teams.

As an equal opportunity employer, we firmly believe that diverse voices fuel our innovation and allow us to better serve our users and the community. We foster an environment where every employee of Tencent feels supported and inspired to achieve individual and common goals.