IOS Engineer Intern (Global Payment) - 2027 Start

ByteDance; Singapore; On-site; SGD 11,000 - 17,000; Part time

Job summary

ByteDance Singapore is seeking energetic interns to join the Global Payment iOS team, helping build checkout experiences, TikTok Pay wallet features, and AI-assisted workflows across multiple markets.

You will collaborate with product, design, backend, QA, and cross-functional teams to deliver high-quality features, improve performance, and gain hands-on industry exposure through workshops and projects.

Qualifications

• Pursuing a Bachelor's degree or above in computer science or related fields.
• Solid CS fundamentals: data structures, algorithms, systems, networks.
• Good coding habits and ability to write stable, maintainable code.
• Strong problem-solving and willingness to understand business logic.
• Familiarity with iOS basics and English communication.

Responsibilities

• Participate in developing core Global Payment iOS client capabilities.
• Work on checkout experiences across countries and payment methods.
• Contribute to TikTok Pay wallet features and AI-related explorations.
• Assist client-side architecture improvements and performance optimization.
• Collaborate with product, design, backend, QA, and cross-functional teams.

Skills

CS fundamentals

Coding best practices

Problem solving

Communication

Swift/Obj-C exposure

iOS fundamentals

AI-Native development interest

Cross-platform development

Education

Bachelor's degree or above in CS/related fields

Job description

Join us as we work together to inspire creativity and enrich life around the globe.

Location:

Team:

Client

Employment Type:

Intern

Job Code:

A218693

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Responsibilities

• Participate in the development of core Global Payment client-side capabilities, covering e-commerce / local services checkout, credit and financial services, TikTok Pay wallet, standalone payment apps, AI exploration, and other key areas.
• Payment scenarios: Work on client-side checkout solutions for cross-country payment rule differences, multiple payment method combinations, and complex business scenarios. Help build highly reliable and highly available checkout experiences, continuously improving transaction success rate, user payment experience, and system stability.
• Financial wallet scenarios: Participate in the global capability development of TikTok Pay, including account systems, fund management, local wallet integrations, and payment compliance capabilities across multiple countries. As the business continues to expand, help TikTok Pay evolve from a basic payment capability into a user-facing financial entry point, with the ambition of becoming a widely used global payment tool.
• Architecture scenarios: Participate in client-side checkout architecture governance and foundational capability building, including dynamic rendering, componentization, link decoupling, container capabilities, performance optimization, and stability improvement, enhancing system reusability, scalability, and overall R&D efficiency.
• AI scenarios: Participate in the application of AI in client-side development and core business scenarios, helping build an AI-driven R&D and system capability framework. This includes, but is not limited to, improving development efficiency through AI, such as code generation, workflow-driven development, and business understanding; participating in the design and practice of AI Native / Agentic Commerce capabilities, including interaction models and capability abstractions for agents; exploring and contributing to cutting-edge AI payment capabilities and industry-standard protocols; and promoting intelligent capabilities across payment and financial flows, such as decision intelligence, recommendation intelligence, and experience intelligence, to continuously improve engineering efficiency and business outcomes.
• Responsibilities- Participate in the development of core Global Payment iOS client capabilities, covering checkout experiences for e-commerce and local services, TikTok Pay wallet, credit and financial services, standalone payment apps, and AI-related explorations.
• Support the design and implementation of reliable and scalable iOS checkout solutions across multiple countries, payment methods, and complex business scenarios, helping improve transaction success rate, user payment experience, and system stability.
• Contribute to TikTok Pay wallet capabilities on iOS, including account-related features, fund management flows, local wallet integrations, and payment compliance requirements across global markets.
• Assist in iOS client-side architecture improvements, such as componentization, dynamic rendering, link decoupling, container capabilities, performance optimization, and stability enhancement.
• Work closely with product, design, backend, QA, and cross-functional teams to deliver high-quality features, troubleshoot issues, and continuously improve engineering efficiency.
• Explore the application of AI in iOS client development and payment scenarios, including AI-assisted R&D workflows, intelligent user experiences, and emerging AI-native payment capabilities.

We are looking for talented individuals to join us for an internship. Our internship program offers students hands-on experience, industry exposure, and opportunities to apply their knowledge to real-world challenges while building a strong foundation for personal and professional growth. Interns will gain practical experience, explore potential career paths, and participate in social events, learning programs, and development workshops alongside industry professionals.

Qualifications

• Minimum Qualifications- Currently pursuing a Bachelor's degree or above, preferably in Computer Science, Software Engineering, Electronic Information, Telecommunications, or related fields.
• Solid computer science fundamentals, including data structures, algorithms, operating systems, and computer networks.
• Good coding habits and learning ability, with the ability to write clear, stable, and maintainable code under guidance.
• Strong problem-solving ability and self-motivation, with willingness to deeply understand business logic and technical details.
• Good communication and collaboration skills, with the ability to clearly communicate problems, progress, and risks.
• Preferred Qualifications- Familiar with Objective-C or Swift, with basic understanding of iOS development frameworks, common components, and development workflows.
• Preferred Qualifications- Understanding of iOS fundamentals, such as lifecycle, UIKit, Runtime, memory management, multithreading, network requests, and data storage.
• Preferred Qualifications- Interest or practical experience in KMP/CMP cross-platform development.
• Preferred Qualifications- Interest or practical experience in AI-Native development, including AI Coding, code understanding, automated test generation, knowledge base construction, and R&D workflow automation.
• Preferred Qualifications- Internship or project experience in large-scale internet products, transaction systems, e-commerce, payments, finance, wallets, risk control, or infrastructure.

Job Information

About Us

Why Join ByteDance

Inspiring creativity is at the core of ByteDance's mission. Our innovative products are built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and enrich life - a mission we work towards every day.

As ByteDancers, we strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our Company, and our users. When we create and grow together, the possibilities are limitless. Join us.

Diversity & Inclusion

ByteDance is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At ByteDance, our mission is to inspire creativity and enrich life. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.