Principal CRM Engineer

STARHUB LTD.; Singapore; On-site; SGD 180,000 - 300,000; Full time

Job summary

StarHub is seeking a Principal CRM Engineer to define and evolve the architecture of its core CRM and Order Management platforms powering onboarding, sales journeys, and fulfilment for the Consumer Business. You will shape a scalable, resilient cloud-native solution in a DevOps environment and guide teams toward standardized, reliable systems.

The role focuses on platform modernization, performance, and data integrity across CRM, billing, and provisioning, with emphasis on APIs, orchestration,

Qualifications

• 10+ years of professional software engineering experience with a strong emphasis on system architecture and large-scale distributed systems.
• Experience designing, evolving, and operating enterprise-critical platforms in CRM/OM/BSS or similar domains.
• Deep architectural expertise across microservices, API design, workflow orchestration, and data architecture.

Responsibilities

• Define end-to-end architecture of CRM/OM platforms across Customer Management, Product Catalogue, Campaigns, Order Management, and Revenue/Billing integration.
• Establish architectural principles and standards for microservices, API design, workflow orchestration, and data management across CRM/OM domains.
• Design and optimize workflow orchestration strategies for order lifecycle processes, ensuring scalability and fault tolerance.
• Drive platform scalability and performance improvements by identifying system bottlenecks across APIs, databases, and workflows.
• Define and govern data architecture, ensuring consistency, integrity, and efficient data flow across CRM, provisioning, and billing systems.
• Establish API and integration standards, including versioning, idempotency, and reliability patterns for internal and external system integrations.
• Lead platform modernization initiatives, including migration from legacy CRM systems to cloud-native CRM-based architecture.
• Reduce technical debt and system complexity by driving modularization, decoupling, and standardization across services.
• Define and implement observability and reliability strategies across the platform, ensuring proactive monitoring, alerting, and performance optimization.
• Collaborate with DevOps and platform teams to design scalable cloud-native solutions using Kubernetes (EKS), CI/CD pipelines, and Infrastructure as Code.
• Act as the technical authority for design decisions, conducting architecture reviews and ensuring alignment with enterprise architecture and business objectives.
• Mentor CRM Engineers on system design, architectural thinking, and advanced debugging techniques.
• Influence cross-functional teams and stakeholders to adopt consistent engineering standards and best practices.
• Collaborate with Product Owners, QA, DevOps, and vendors to ensure seamless integration and delivery of end-to-end customer journeys.

Skills

System architecture

Distributed systems

Leadership & mentoring

Stakeholder management

Architectural reviews

Problem solving

Tools

Kubernetes

AWS

Java

Spring Boot

PostgreSQL

Oracle

RESTful APIs

CI/CD

Job description

Role Mission

The Principal CRM Engineer defines and evolves the architecture of StarHub's core Customer Relationship Management (CRM) and Order Management (OM) platforms that power customer onboarding, sales journeys, and fulfilment for the Consumer Business.

The role focuses on building a scalable, resilient, and future-ready CRM/OM platform, ensuring seamless end-to-end customerexperiencesand enabling rapid product innovation. Operating within a DevOps model, the Principal CRM Engineer drives platform modernization, architectural standardization, and system-wide reliability, while guiding engineering teams to eliminate systemic issues and scale the platform sustainably.

Responsibilities

1. Define and own the end-to-end architecture of CRM/OM platforms across Customer Management, Product Catalogue, Campaigns, Order Management, and Revenue/Billing integration
2. Establish architectural principles and standards for microservices, API design, workflow orchestration, and data management across CRM/OM domains
3. Design andoptimizeworkflow orchestration strategies for order lifecycle processes, ensuring scalability and fault tolerance
4. Drive platform scalability and performance improvements byidentifyingsystem bottlenecks across APIs, databases, and workflows
5. Define and govern data architecture, ensuring consistency, integrity, and efficient data flow across CRM, provisioning, and billing systems
6. Establish API and integration standards, including versioning, idempotency, and reliability patterns for internal and external system integrations
7. Lead platform modernization initiatives, including migration from legacy CRM systems to cloud-nativeCRM-based architecture
8. Reduce technical debt and system complexity by driving modularization, decoupling, and standardization across services
9. Define and implement observability and reliability strategies across the platform, ensuring proactive monitoring, alerting, and performance optimization
10. Collaborate with DevOps and platform teams to design scalable cloud-native solutions using Kubernetes (EKS), CI/CD pipelines, and Infrastructure as Code
11. Act as the technical authority for design decisions, conducting architecture reviews and ensuring alignment with enterprise architecture and business objectives
12. Mentor CRM Engineers on system design, architectural thinking, and advanced debugging techniques
13. Influence cross-functional teams and stakeholders to adopt consistent engineering standards and best practices
14. Collaborate with Product Owners, QA, DevOps, and vendors to ensure seamless integration and delivery of end-to-end customer journeys

Qualifications

• 10+ years ofprofessional software engineering experience with a strong emphasis on system architecture and large-scale distributed systems
• Demonstrated ability todesign, evolve, andoperateenterprise-criticalplatforms, particularly withinCRM,OM,BSS, or comparable domains
• Deep architecturalexpertiseacross:
  • Microservices and distributed system design
  • API design, integration patterns, and service contracts
  • Workflow driven andorchestration-basedsystems
  • Data architecture,modelling, and database performance optimization
• Stronghands-on-technical experience with:
  • Java, Spring Boot, and RESTful APIdesign/development
  • PostgreSQL and/or Oracle, including query optimization and performance tuning
  • Kubernetes based platforms and cloud environments (AWS preferred)
• Proven experience working in telecom BSS/OSS environments, including CRM, billing, and order management systems
• Establishedtrack recordof leading platform modernization, large scale refactoring, and transformation initiatives in complex enterprise environments

Preferred Certifications

• Certified Kubernetes Administrator (CKA) or Certified Kubernetes Application Developer (CKAD)
• AWS Certified Solutions Architect (Associate or Professional)