Senior SAP S/4HANA Technical Architect - Transformation Lead

V-ELEGANT PTE. LTD.; Singapore; On-site; SGD 180,000 - 260,000; Full time

Job summary

V-ELEGANT PTE. LTD. seeks an experienced SAP S/4HANA Technical Architect to own the technical architecture for a large-scale SAP transformation in a public-sector/defence context.

Lead end-to-end design assurance, architecture, and integration across on-premise and sovereign-cloud environments. The role requires 12+ years of SAP technical expertise, with multiple S/4HANA implementations and strong security and performance focus.

Qualifications

• Minimum 12+ years of SAP technical experience.
• At least 5+ years as an SAP Technical/Solution Architect.
• Minimum 2 full-lifecycle SAP S/4HANA implementations with landscape, integration and security ownership.
• Strong experience with S/4HANA on HANA, landscape design, sizing, HA/DR.
• Experience with SAP Integration Suite/PI-PO, APIs and legacy systems.
• Security architecture expertise including IAM/SSO, encryption, network segmentation.

Responsibilities

• Own end-to-end S/4HANA technical architecture, including landscape, HANA, sizing, HA/DR.
• Design deployment topology for on-premise, air-gapped or sovereign-cloud environments.
• Define integration architecture using SAP Integration Suite, PI/PO, APIs, OData, IDoc and BAPI.
• Define security architecture including encryption, IAM/SSO, access controls.
• Govern SAP transport strategy and CI-CD processes with Basis teams.
• Own NFRs covering performance, scalability and availability.
• Lead performance, volume and load-test strategy with Testing teams.
• Define data migration architecture and technical cutover runbook.
• Provide technical design assurance and sign-off against criteria.
• Collaborate with Functional Architects, Basis, Security, Data Migration, Integration and Testing teams.

Skills

S/4HANA architecture

Security architecture

Performance engineering

DevOps/CI-CD

Public-sector experience

Education

Degree in Engineering/Computer Science

SAP certification in S/4HANA/HANA/Integration

SAP Activate awareness

TOGAF (preferred)

Cloud/infrastructure certifications (preferred)

Tools

S/4HANA

HANA database

SAP Integration Suite

PI/PO

APIs, OData, IDoc, BAPI

IAM/SSO

Security hardening

Job description

V-ELEGANT PTE. LTD. seeks an experienced SAP S/4HANA Technical Architect to own the technical architecture for a large-scale SAP transformation in a public-sector/defence context.

Lead end-to-end design assurance, architecture, and integration across on-premise and sovereign-cloud environments. The role requires 12+ years of SAP technical expertise, with multiple S/4HANA implementations and strong security and performance focus.