Senior Platform Engineer

STARHUB LTD.; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A leading telecommunications company in Singapore seeks a Senior Platform Engineer to lead the development and operation of a unified internal platform. The role involves mentoring junior engineers, implementing a developer portal, and ensuring compliance and observability within cloud infrastructure. Candidates should have over 8 years of experience in platform engineering, particularly with AWS and developer tools. This position offers an opportunity to shape engineering practices and enhance product teams' autonomy.

Qualifications

• 8+ years of experience in platform engineering or cloud infrastructure.
• Strong expertise in AWS services and platform automation.
• Hands-on experience with developer portals and experimentation platforms.

Responsibilities

• Lead and mentor junior platform engineers.
• Design and implement the developer portal.
• Architect and operate the feature-flagging framework.
• Implement observability dashboards and alerts.
• Integrate security and compliance checks into templates.

Skills

Platform Engineering

Cloud Infrastructure

AWS

Backstage or similar

Feature-Flag platforms

Security/Compliance standards

Job description

Job Description

The Senior Platform Engineer will lead the development and operation of a unified internal platform (developer portal + feature-flag & experimentation services) that enables engineering teams to self-service common infrastructure, safely release features, and adopt a “paved-road” approach. This role ensures platform standards, automation, security, compliance, and observability are embedded from day one while enabling speed and autonomy across product teams.

Accountabilities

1. Lead and mentor junior platform engineers in building and maintaining the internal platform.
2. Design, implement, and evolve the developer portal based on Backstage, including catalog, templates, docs, service onboarding, and developer workflows.
3. Architect, deploy, and operate the feature-flagging and experimentation framework using GrowthBook (or equivalent), enabling controlled rollouts, A/B testing, and metrics-driven experiments.
4. Define, enforce, and continuously improve platform standards/templates for infrastructure, security, compliance, cost, and observability. Collaborate with Platform Architect, Shared Services Manager, and application teams to align platform roadmap and adoption of the paved-road approach.

Responsibilities

1. Customize Backstage — configure catalog, templates, TechDocs, plugins, CI/CD /infrastructure integrations, onboarding flows, and maintain documentation.
2. Deploy and maintain GrowthBook (or similar) — configure feature flags, integrate SDKs with services, define experiment workflows, manage metrics, and ensure secure, performant flag evaluations.
3. Build reusable “paved-road” templates (infra + code + deployment + feature-flag integration + observability + cost guardrails).
4. Implement observability dashboards, logging, tracing, and alerts for platform services to monitor health, performance, and adoption metrics.
5. Integrate security and compliance checks into platform templates and automation, aligned with CSA best practices and MAS-TRM guidelines.
6. Lead platform onboarding for engineering teams — guide usage of portal/templates/flags, educate on best practices, enforce governance, and gather feedback for continuous improvement.
7. Monitor platform adoption, usage, cost efficiency, flag rollout effectiveness, experiment outcomes, and iterate on tooling.

Experience

• Experience in medium-to-large technology or financial services organizations with complex cloud-native environments and multiple engineering teams; exposure to enterprise-grade developer platforms or internal tooling initiatives.

Seniority, Skills, Certifications (must-haves)

• Have 8+ years of experience in platform engineering or cloud infrastructure.
• Strong expertise in AWS (EKS, RDS, Elasti Cache, IAM, VPC, observability), container orchestration, IaC/CaC, and platform automation
• Hands-on experience with Backstage or similar developer portals and feature-flag/experimentation platforms (GrowthBook, LaunchDarkly, or equivalent)
• Familiarity with security/compliance standards (MAS-TRM, CSA)
• Certifications such as AWS Certified Solutions Architect or DevOps-related certifications are a plus.