Principal Software Engineer

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THE ROLE

BJAK builds technology products used by millions of users across Southeast Asia. As our products and systems scale, we need technical leaders who can solve difficult engineering problems and raise the engineering bar around them.

The Principal Software Engineer owns technical direction and execution for major products and systems. This is a hands-on role - you will design systems, write code, and drive critical engineering work from idea to production.

WHAT YOU'LL OWN

• Owning technical design and execution for major products, systems and engineering initiatives.

• Designing scalable, reliable systems across backend, frontend, APIs, databases and infrastructure.

• Building alongside the team through coding, prototyping, code reviews, debugging and production problem-solving.

• Driving architecture decisions and trade-offs across speed, scalability, reliability, cost and maintainability.

• Turning ambiguous product problems into clear technical solutions and execution plans.

• Raising engineering quality through stronger system design, testing, security, observability and development practices.

• Leading technically critical initiatives and mentoring engineers across teams.

What We're Looking For

• 7+ years of software engineering experience building and shipping production systems.

• Deep expertise in backend, frontend, distributed systems, APIs, databases or cloud infrastructure.

• Strong system design and architecture skills for complex or high-scale systems.

• Strong coding ability and willingness to remain hands-on.

• Track record of technically leading major engineering projects from design through production.