Lead Engineer, AI-First Email App (Remote)

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

Job summary

BJAK is seeking a Lead Engineer to take technical ownership of complex products and systems. The role combines architectural leadership with hands-on coding, enabling you to design, build and improve scalable platforms while guiding the engineering team.

You will move between architecture and implementation, making critical decisions that balance speed, reliability and maintainability. This is a remote, globally distributed position with a focus on delivering high-quality financial applications.

Qualifications

• Strong software engineering background with significant experience building and shipping production systems.
• Deep technical expertise in one or more areas such as 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.
• Strong product sense and ability to connect technical decisions to customer and business outcomes.
• Able to work fast with ambiguity and take ownership from problem definition through production.
• Strong judgment around when to move quickly, when to simplify and when deeper engineering investment is required.

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.

Job description

BJAK is seeking a Lead Engineer to take technical ownership of complex products and systems. The role combines architectural leadership with hands-on coding, enabling you to design, build and improve scalable platforms while guiding the engineering team.

You will move between architecture and implementation, making critical decisions that balance speed, reliability and maintainability. This is a remote, globally distributed position with a focus on delivering high-quality financial applications.