Principal Software Engineer (Open for Expatriate)

Company Overview: Our client is an HRTech software service (B2B SaaS) company headquartered in Bangkok, Thailand. Founded in 2018. It is one of the fastest-growing start-ups in the region and is backed by Surge and Sequoia Capital. They have a global presence and are trusted by thousands of businesses in over 130 countries. The goal is to transform the entire hiring process by making it simple, efficient, and enjoyable for recruiters, hiring managers, and candidates alike. The mission is to offer the best-in-class AI-powered technologies to empower small, medium, and large businesses in their staffing & recruitment transformation  Role Overview We seek a passionate and experienced Principal Full Stack Engineer to join our dynamic team. The ideal candidate is a seasoned software engineer who excels in designing and building complex software applications across the entire stack, particularly in single-page applications (SPA) or back-office systems. This role focuses on leading projects and driving technical initiatives rather than people management. We are looking for someone eager to learn, proactive, energetic, and understands the importance of making an impact. The Principal Full Stack Engineer will be responsible for both frontend and backend development, ensuring seamless integration and high performance of web applications. Responsibilities Lead and drive high-level technical initiatives and projects, ensuring high-quality delivery. Architect, design, and implement complex software applications, emphasizing robust and scalable solutions. Collaborate with cross-functional teams to define, design, and ship new features. Ensure code quality and maintainability through rigorous code reviews and adherence to advanced design patterns. Optimize the performance of web applications to ensure fast and efficient user experiences. Mentor and provide technical guidance to junior and senior engineers, fostering a culture of continuous learning and improvement. Address and refactor legacy code, bringing it up to modern standards and practices. Drive significant changes in coding practices and standards to improve code quality and team efficiency. Develop and maintain backend services and APIs, ensuring seamless integration with front-end applications. Requirements Excellent communication skills and the ability to work well in a team environment. 7+ years of experience developing web applications in client-side frameworks such as React, Angular, VueJS, etc. Excellent understanding of object-oriented JavaScript and TypeScript. Proven experience working on large-scale projects, particularly in single-page applications (SPA) or back-office systems. Extensive experience in optimizing the performance of web applications. Deep knowledge of software engineering principles and advanced design patterns. Extensive experience with backend technologies and frameworks commonly used in web development, 6+ years preferred. Strong expertise in RESTful API design and GraphQL Extensive familiarity with database management systems such as PostgreSQL, MySQL, etc. Benefit International working environment with people coming from +25 nationalities worldwide. Open for expatriates which Relocation, Working Permit, and Multiple Entry Visa will be provided.