Lead Software Engineer (Full Stack)

LEAD SOFTWARE ENGINEER (FULL STACK)

Industry: HRTech / B2B SaaS

Location: Bangkok, Thailand

Working Arrangement: On-site

About the Role

Our client is a fast-growing international B2B SaaS company in the HRTech industry, providing

AI-powered solutions to optimize recruitment and hiring processes for businesses worldwide.

We are looking for a Lead Software Engineer (Full Stack) to lead technical initiatives and develop scalable, high-performance web applications. This is a hands-on technical leadership role focused on software architecture, coding standards, and project delivery rather than people management.

Key Responsibilities

• Lead technical initiatives and drive end-to-end delivery of software projects.
• Design, develop, and maintain scalable full-stack web applications, particularly SPAs and back-

office systems.

• Build and integrate backend services and RESTful APIs.
• Optimize application performance, scalability, and reliability.
• Conduct code reviews and establish best practices for code quality and maintainability.
• Refactor legacy code and improve existing systems using modern engineering practices.
• Collaborate with cross-functional teams and provide technical guidance to junior engineers.

Requirements

• 5+ years of experience in full-stack or web application development.
• Strong experience with frontend frameworks such as Vue.js, React, or Angular.
• Excellent knowledge of JavaScript, TypeScript, and object-oriented programming.
• Experience developing and maintaining medium- to large-scale applications, especially SPAs or back-office systems.
• Solid understanding of software engineering principles, design patterns, and performance optimization.
• Experience with backend technologies such as Node.js, Express, Python, Django, FastAPI, or similar frameworks.
• Proficiency in RESTful API design and development.
• Familiarity with relational databases such as PostgreSQL or MySQL; experience with MongoDB,

Redis, or Elasticsearch is a plus.

• Strong communication skills and the ability to collaborate effectively in an international team.
• Good command of English.

Technical Environment

• Frontend: JavaScript, Vue.js
• Backend: Python, Django, FastAPI
• Databases: PostgreSQL, MongoDB, Elasticsearch, Redis
• Infrastructure: AWS, Kubernetes, ArgoCD, GitHub Actions

Benefits

• Opportunity to work with a rapidly growing international SaaS business.
• Collaborative, multicultural engineering team.
• Attractive medical insurance.
• Personal development allowance.
• Up to 2 weeks of work-from-anywhere arrangements per year.
• Regular team-building activities and company trips.