Principal Platform Engineer — AI‑Driven, Scalable & Secure

Land Transport Authority (LTA); Singapore; On-site; SGD 180,000 - 260,000; Full time

Job summary

Land Transport Authority is seeking a Principal Developer, Platforms to build and standardize the digital shopfront architecture for OneMotoring, with AI-powered tooling and secure, scalable services.

You will lead platform core development, CI/CD, observability, and vendor reviews, shaping production‑grade systems and AI integrations while balancing security and performance in a regulated public sector context.

Qualifications

• 7+ years of experience as a senior or principal engineer.
• Proven track record building and operating production systems.
• Strong Python full-stack development with a modern frontend.
• Experience with CI/CD, containerisation and cloud infrastructure.
• Experience integrating hybrid and legacy systems.
• Security-by-design and application security management.
• Understanding of AI deployment in production and LLM integration.
• Public sector or regulated environment experience is advantageous.

Responsibilities

• Build the platform core: Develop internal tooling, integration middleware, and shared services that connect the Digital Shopfront to the wider ecosystem.
• Platform reliability lead: Design and oversee CI/CD pipelines, container infrastructure, and observability stack to keep the platform stable.
• Review vendor code: Set and uphold the engineering bar for vendor‑delivered software; review PRs, architecture decisions, and test coverage.
• Apply AI where it fits: Build practical AI capabilities across the platform, from smart feedback to AI‑assisted workflows.
• Design for scale and security: Make infrastructure decisions for speed and security as usage grows.
• Champion technical investment: Prioritize technical debt reduction and educate stakeholders on Foundation work.

Skills

Full-stack development

Python

Frontend framework

CI/CD

Containerisation

Cloud infrastructure

Observability tooling

Security by design

Legacy system integration

AI deployment in production

Job description

Land Transport Authority is seeking a Principal Developer, Platforms to build and standardize the digital shopfront architecture for OneMotoring, with AI-powered tooling and secure, scalable services.

You will lead platform core development, CI/CD, observability, and vendor reviews, shaping production‑grade systems and AI integrations while balancing security and performance in a regulated public sector context.