AVP-Core Architecture & Services

Indosat; Jakarta Pusat; On-site; IDR 550,000,000 - 1,100,000,000; Full time

Job summary

Indosat is seeking a Cloud Core Architect & Services to define and drive the cloud-native core architecture, aligning 4G/5G core evolution with API-enabled monetization strategies.

The role collaborates across Engineering, IT/Digital, Cybersecurity, and external partners to create scalable, secure APIs and a modern Telco cloud platform. Experience leading multi-vendor, cross-functional teams is essential.

Qualifications

• Bachelor’s or Master’s degree in computer science, Electrical Engineering, or related technical field.
• 8–15+ years in network/cloud architecture or platform engineering.
• Hands-on experience with large-scale cloud-native telco systems.

Responsibilities

• Design and govern cloud-native core architecture (EPC, IMS, 5G Core, UDM, PCF, NEF).
• Define architecture patterns for CNFs/NFVs (OpenStack, Kubernetes), network slicing, edge cloud.
• Deliver complete target-state and transition-state architecture maps aligned to the technology roadmap.
• Create long-term roadmap and implementation plans for Telco cloud infrastructure.
• Define the company’s API strategy covering: Network APIs and internal service APIs.
• Lead API governance, standards, and lifecycle management.

Skills

Telco core

Kubernetes

Service mesh

Distributed systems

API frameworks

OAuth2/OIDC

Terraform

CI/CD

GitOps

Cloud networking

SRE/Observability

Education

Bachelor’s or Master’s in CS/EE

Job description

The Cloud Core Architect & Services is responsible for defining and driving the architecture of the cloud-native core platform while shaping the company’s API strategy to enable scalable, secure, and interoperable services. This role ensures alignment between cloud infrastructure, 4G/5G core evolution, digital platforms, and API products—enabling faster innovation, improved service exposure, and ecosystem growth.

The role collaborates with Engineering, TechCo, Product, IT/Digital, Cybersecurity, and external partners to build an architecture that accelerates digital services, supports network modernization, and unlocks new monetization opportunities through APIs.

Key Responsibility

Design and govern cloud-native core architecture (EPC, IMS, 5G Core, UDM, PCF, NEF).

Define architecture patterns for CNFs/NFVs (e.g. Openstack, Kubernetes), network slicing, edge cloud, and distributed compute.

Deliver complete target-state and transition-state architecture maps aligned to the technology roadmap.

Create long-term roadmap and implementation plans for Telco cloud infrastructure.

Strategic alignment and modernization readiness.

Define the company’s API strategy covering:

• Network APIs (NEF, CAPIF/3GPP, CAMARA)
• Internal service APIs for microservices

Alignment with GSMA Open Gateway standards.

Lead API governance, standards, and lifecycle management (design, versioning, documentation, deprecation).

Consistent API governance and high adoption across internal/partner ecosystems.

Key Responsibility_2

Oversee API gateways, service mesh, identity, and access frameworks (OAuth2/OIDC/MTLS).

Robust, secure, and scalable API platform supporting Telco API monetization.

Partner with Product teams to translate network capabilities into monetizable APIs.

Faster launch of network and digital services.

Drive automation (IaC, CI/CD, GitOps) and cloud reliability (SRE, observability).

Reduce time for changes through optimized CI/CD workflows.

Ensure platform security, compliance, resilience, and Zero Trust principles.

Implement Zero Trust controls across identity, workload, and network layers with full policy coverage.

Maintain architecture blueprints, reference models, and decision records.

Publish and update architecture blueprints quarterly with version control and stakeholder sign-off.

Lead vendor evaluation, architecture reviews, and technology roadmaps.

Conduct Architecture Review Boards with ≥90% project compliance to standards.

Complete vendor evaluations with standardized scoring, benchmarks, and TCO for 100% major procurements.

Skills

• Strong experience in cloud-native telco core (EPC, 5G Core SA, IMS, UDM, PCF, NEF).
• Deep expertise in Kubernetes, containers, service mesh (Istio/Linkerd), and distributed systems.
• Strong understanding of API frameworks (REST, gRPC), gateways, OAuth2, OIDC, JWT, rate limiting, throttling.
• Familiarity with GSMA Open Gateway / CAMARA and CAPIFarchitecture.
• Proficiency with IaC (Terraform, Ansible), CI/CD, GitOps.
• Strong grasp of cloud networking (BGP, CNI, overlay networks).
• Understanding of SRE practices and cloud observability stacks (Prometheus, Grafana, ELK, Jaeger).

Leadership Competency

Defines cloud stack direction for on-prem Telco Core workloads.

Drives automation in operations.

Delivers scalable, resilient, and cost-effective cloud infrastructure.

Ensures timely delivery of infrastructure goals.

Tracks infra delivery milestones, issue resolution, and performance optimization.

Leads API enablement and adoption.

Develops robust frameworks for Telco API infrastructure and exposure.

Collaborates across teams and vendors.

Drives alignment and smooth integration across domains and suppliers.

Ensures system stability and compliance.

Embeds governance, monitoring, and security standards.

Guides to hardware and orchestration technology choices.

Selects optimal platform combinations for performance, efficiency, and cost.

Qualifications

• Bachelor’s or master’s degree in computer science, Electrical Engineering, or related technical field.
• 8–15+ years in network/cloud architecture or platform engineering.
• Hands‑on experience with large‑scale cloud-native telco systems.
• Experience designing or leading API ecosystems (internal or external).
• Proven leadership in multi‑vendor, cross‑functional environments.
• Experience initiating or leading AI‑based network operations and automation projects in cloud, SDN, or Telco Core domains.
• Familiarity with multi‑vendor Telco environments, open‑source ecosystems, and hardware platform benchmarking.
• Strong understanding of infrastructure hardware design including x86, ARM, and AMD platforms, as well as NIC technologies, DPDK, and high‑performance network interface requirements.
• Strong analytical and architectural thinking.
• Ability to communicate complex material to both technical and business stakeholders.
• Proactive leadership, vendor management, and decision‑making.
• Excellent documentation and modeling (UML, ArchiMate).

Location: ID

Level: Managerial

Employment Status: Permanent

Department: Group Core Planning & Engineering