Yum! Digital & Technology is on a mission to revolutionize the QSR industry through Byte by YUM—our cutting-edge digital commerce platform powering iconic brands including KFC, KFC, and Pizza Hut worldwide. Byte is transforming how millions of customers discover, engage with, and order from their favorite brands across web, mobile, and loyalty experiences.

As a Senior Software Engineer II on the KFC Experience Team, you will design, build, and enhance KFC's digital commerce experiences. Working as a hands-on engineer, you will develop modern, scalable web applications that deliver fast, intuitive, and engaging customer journeys across discovery, ordering, and checkout.

Partnering closely with Product, UX, Platform Engineering, Analytics, and market stakeholders, you will help deliver high-quality front-end solutions that balance performance, accessibility, maintainability, and speed to market. This role is ideal for an engineer who is passionate about creating exceptional customer experiences, solving complex technical challenges, and delivering impact at global scale.

• Design and implement scalable front-end applications and shared components that power KFC's digital commerce experiences

• Build responsive, accessible, and high-performance user interfaces using modern web technologies and front-end frameworks such as React and Next.js.

• Lead architecture discussions and drive technical decisions for your team, escalating to Staff/Principal engineers where appropriate

• Set and enforce code quality standards; mentor engineers through code reviews, pair programming, and technical guidance

• Own technical scoping, estimation, and risk communication for your team's deliverables

• Drive onboarding of new engineers onto the KFC Experience Team

• Partner with Product, Design, and Back-End teams to deliver seamless end-to-end customer journeys across browsing, customization, ordering, and checkout flows

• Represent engineering in cross-functional planning; act as a technical bridge between engineering and non-technical stakeholders

• Support market-specific custom development while maintaining a scalable core platform, consistent user experience, and strong code quality standards

• Collaborate on analytics instrumentation, A/B testing, and experimentation initiatives to continuously improve conversion and customer engagement

• Partner with Product, QA, and DevOps teams to plan releases, phased rollouts, and continuous delivery practices

• Troubleshoot production issues and use monitoring and observability tools to improve application reliability, performance, and customer experience

• Leverage AI-assisted development tools and modern engineering practices to improve development efficiency, code quality, and team productivity

Required Qualifications

• Bachelor's degree in Computer Science, Information Systems, or equivalent practical experience
• 7+ years of professional software engineering experience, including 4+ years building and operating modern React-based production applications in customer-facing environments
• Demonstrated experience mentoring or leading engineers in a team setting, with a track record of raising the technical bar of a team
• Ability to break down ambiguous problems into scoped, deliverable work and drive technical decisions with confidence
• Experience designing and building scalable front-end applications for customer-facing digital products, with a strong understanding of modern web architecture and engineering best practices
• Experience delivering modern web applications in high-traffic e-commerce, retail, or consumer digital environments
• Experience building internationalized or multi-market applications
• Strong problem-solving, debugging, and analytical skills
• Excellent collaboration and English communication skills with both technical and non-technical stakeholders

Technical Proficiency

• JavaScript/TypeScript and modern front-end frameworks such as React, Next.js, or similar
• HTML, CSS, responsive design, and cross-browser compatibility best practices
• State management, API integration, and modern rendering patterns for web applications
• Web performance optimization, accessibility standards, and front-end testing practices
• Experience leveraging AI-assisted development tools such as GitHub Copilot, Cursor, ChatGPT, Claude, or similar technologies to improve engineering productivity and code quality

Strong Experience With

• Component-based architecture and reusable UI systems
• CI/CD pipelines such as GitLab CI, GitHub Actions, or similar tools
• Front-end testing tools and quality practices, including unit, integration, and end-to-end testing
• Design systems, analytics instrumentation, experimentation, and SEO considerations in digital commerce environments
• Monitoring front-end performance and using data to guide customer experience improvements
• Deploying, debugging, and operating applications in cloud-native environments
• Monitoring, logging, tracing, and observability practices for production applications

Additional Preferred Qualifications

• Experience with React Native or mobile application development

• Familiarity with server-side rendering (SSR), static site generation (SSG), component-driven development, and reusable UI architecture

• Experience supporting high-traffic e-commerce or consumer-facing web applications

• Experience with design systems and close collaboration with UX/UI teams

• Knowledge of observability, analytics instrumentation, and performance monitoring for front-end applications

• Experience integrating with GraphQL or REST-based APIs

• Experience integrating with Headless CMS platforms such as Contentful

• Familiarity with feature flagging, experimentation, and A/B testing platforms

• Experience working with cloud platforms such as AWS and modern observability tooling

• Background in restaurant technology, digital ordering, loyalty, or retail operations

• Experience using AI-assisted development workflows to accelerate software delivery and engineering effectiveness

• Passion for building digital experiences that reflect and elevate a consumer brand

• 100% salary during probation period
• Annual Leave: 18 days/ year
• Five “Recharge Days” – Extra days, in addition to company holidays.
• 2 days WFH/ weef
• Flexible Friday afternoon
• Full salary insurance
• 13th-month bonus
• 1 day off for birthday
• Advanced health insurance (Generali)
• Regular engagement activities: sport clubs, internal event…
• Support Macbook and Monitor

Working location: Waseco building, 10 Pho Quang, Tan Son Hoa ward, Ho Chi Minh city, Vietnam.