Lead Engineer, Platform & Systems Architecture

BJAK; Indonesia; On-site; IDR 2,140,946,000 - 3,211,418,000; Full time

Job summary

BJAK is seeking a Lead Engineer to own and guide the architecture of major products, while staying close to code. You will design scalable systems, review work, and mentor engineers to raise the tech bar across teams.

The role emphasizes taking ownership from idea to production and balancing speed with reliability in a remote, fast-moving environment. Strong engineering leadership and production experience are essential.

Qualifications

• Strong software engineering background with experience building and shipping production systems.
• Deep technical expertise in backend/frontend/distributed systems/APIs/databases or cloud infrastructure.
• Strong system design and architecture skills with experience making technical decisions for complex or high-scale systems.
• Strong coding ability and willingness to remain hands-on.
• Proven experience leading major engineering projects or providing technical leadership to other engineers.
• Comfortable reviewing code, debugging complex issues and working directly with production systems.
• Able to explain complex technical decisions clearly and influence engineers across teams.

Responsibilities

• Lead the technical design and execution of major products, features and engineering initiatives.
• Design scalable, reliable and maintainable systems across backend, frontend, APIs, databases and infrastructure.
• Stay hands-on with engineering through coding, prototyping, code reviews, debugging and production problem-solving.
• Make architecture decisions and technical trade-offs that balance speed, scalability, reliability and maintainability.
• Break ambiguous product and technical problems into clear engineering solutions and execution plans.
• Set a high bar for code quality, system design, testing, security, observability and production reliability.
• Review technical designs and code from other engineers and provide clear, actionable feedback.
• Mentor engineers and help strengthen technical capability across the team.
• Identify technical risks, bottlenecks and architectural weaknesses before they become larger problems.
• Work closely with engineering, product, design and AI teams to ship high-quality products quickly
• Improve engineering tooling, development practices and automation to increase team velocity.
• Own systems beyond release — monitor production, investigate incidents, resolve root causes and continuously improve reliability.

Skills

Software engineering

System design

Leadership

Distributed systems

Code reviews

Production systems

Tools

Cloud platforms

Job description

BJAK is seeking a Lead Engineer to own and guide the architecture of major products, while staying close to code. You will design scalable systems, review work, and mentor engineers to raise the tech bar across teams.

The role emphasizes taking ownership from idea to production and balancing speed with reliability in a remote, fast-moving environment. Strong engineering leadership and production experience are essential.