Technical Lead: Systems & Architecture Mentor

PT Istana Group Indonesia; Jakarta Pusat; On-site; IDR 300,000,000 - 600,000,000; Full time

Job summary

PT Istana Group Indonesia is seeking a Technical Lead to break down requirements, design systems, and lead engineering teams through complex challenges.

You will oversee architecture, API flows, ERDs, use cases, and diagrams; guide microservices, databases, and performance; mentor engineers and collaborate with cross-functional teams to ensure timely delivery of robust fintech-ready solutions.

Qualifications

• Minimum 6 years of experience as a Software Engineer with senior/tech lead exposure.
• Strong backend, architecture, and system design capabilities.
• Deep knowledge of microservices, distributed systems, scalability, and fault tolerance.
• Experience in performance analysis and production troubleshooting.
• Proficient in MySQL and PostgreSQL; indexing and query optimization.
• Good understanding of Kubernetes and containerized apps.
• Able to create ERD, use case, and sequence diagrams.
• Strong technical leadership, task breakdown, mentoring, and decision-making.
• Fintech, payment, or financial systems experience is a plus.
• Node.js/TypeScript experience is a plus.

Responsibilities

• Break down technical requirements into clear, actionable engineering tasks.
• Perform system design before development, including architecture and API flow.
• Design and review solutions involving microservices, databases, caching, and concurrency.
• Estimate tasks, prioritize technically, and manage dependencies with the Engineering Manager.
• Assign and distribute technical tasks based on complexity and engineer capability.
• Conduct code reviews and technical reviews to ensure adherence to standards.
• Act as escalation point for complex problems, performance issues, and incidents.
• Provide technical guidance, mentoring, and problemsolving support to engineers.
• Collaborate with Engineering Manager, QA, DevOps, and Product teams for planning and delivery.

Skills

Backend engineering

System architecture

Distributed systems

Kubernetes

Node.js/TypeScript

Tools

MySQL

PostgreSQL

Job description

PT Istana Group Indonesia is seeking a Technical Lead to break down requirements, design systems, and lead engineering teams through complex challenges.

You will oversee architecture, API flows, ERDs, use cases, and diagrams; guide microservices, databases, and performance; mentor engineers and collaborate with cross-functional teams to ensure timely delivery of robust fintech-ready solutions.