Principal Software Engineer

Company Description

POS DIGICERT Sdn Bhd, established in February 1998, is the premier licensed Certification Authority in Malaysia. The company is dedicated to creating digital identities through digital certificates, which support authentication, integrity, confidentiality, and non-repudiation. POS DIGICERT plays a crucial role in enhancing internet security and fostering growth in Malaysian e-business by addressing information security and online transaction trust. Through commitment and the use of home-grown security products, POS DIGICERT has rapidly grown to become a key player in internet security solutions.

Role Summary

We're seeking a Principal Software Engineer to own the high-level structure of our software systems and raise the bar for engineering excellence across teams. You will lead architectural direction, govern the SDLC, and ensure technical quality from design through production. This is a hands-on leadership role: you'll design critical systems, guide implementation, mentor senior engineers, and implement modern engineering practices that result in resilient, scalable, and secure platforms. The ideal candidate is an expert in OOP, design patterns, RESTful APIs, CI/CD pipelines, cloud platforms, and databases, with a strong track record of solution/technical architecture and delivery governance.

Location: [Hybrid Cyberjaya & Jalan Semantan]

Employment Type: Full-time (Contract for 2 Years with potential for a Permanent position)

Reports to: Head of System Integrator

Must Know: Malay & English

Qualifications

Must-Have

10+ years in software engineering, including 35+ years as a Principal/Staff Engineer or Software Architect for large-scale systems.

Deep expertise in OOP and design patterns; strong command of clean architecture and domain-driven design (DDD).

Proven design and delivery of RESTful APIs at scale with strong API governance.

Hands-on with CI/CD and DevOps practices, including automated testing, security scanning, and release strategies.

Cloud architecture experience on Azure/AWS (multi-region, high availability, cost optimization).

Strong database fundamentals (modeling, transactions, performance, replication) across SQL and NoSQL.

Proficiency in at least two of: C#/.NET, Java/Spring Boot, Node.js/TypeScript, Python, Go.

Experience with containers/Kubernetes, IaC (Terraform), and observability (OpenTelemetry, Prometheus/Grafana, ELK).

Nice-to-Have

Event-driven architectures, streaming (Kafka), CQRS, and caching strategies.

Experience with zero-downtime migrations, monolith decomposition, or platform engineering (internal developer platforms).

Performance engineering (load testing, capacity planning, flame graphs/profiling).

Interview Process

HR & Technical Deep Dive Introduction, Architecture + OOP/design patterns + API design + Coding Feedback (6090 min)

Leadership & Collaboration Cross-functional panel (Product/Delivery/SecOps) (60 min