SAP S/4HANA Technical Architect

Lumen Solutions Group Inc•Washington, DC

3d•Remote

About The Position

Lumen Solutions Group Inc. is seeking a Senior SAP Technical Architect / SAP S/4HANA Technical Lead to provide technical leadership and architectural governance for a large-scale SAP S/4HANA transformation program. The role oversees the System Integrator’s technical delivery, reviews and challenges solution designs, enforces SAP Clean Core principles, and ensures alignment with enterprise architecture standards. It emphasizes architecture, governance, and technical oversight rather than day-to-day development. The candidate needs sufficient hands-on expertise to evaluate designs, resolve complex technical issues, and guide architectural decisions with minimal ramp-up time. The position is based in Washington, DC and is remote with quarterly travel required for PI Planning in Washington, DC or Wilmington, DE. It is a contract role.

Requirements

Extensive hands-on experience designing and governing SAP S/4HANA technical architecture.
Proven leadership on large-scale SAP implementations or transformation programs.
Ability to evaluate complex solution designs and troubleshoot cross-workstream technical issues.
Experience overseeing external SAP System Integrators and governing technical delivery.
Ability to challenge architecture decisions, assess technical risks, and ensure solution quality.
Experience leading architecture reviews and coordinating technical dependencies.
Strong understanding of SAP Clean Core principles and best practices.
Knowledge of SAP extensibility strategies and minimizing unnecessary core modifications.
Ability to guide teams toward maintainable, scalable, and upgrade-friendly solutions.
Extensive experience with SAP integration architecture, interfaces, APIs, and middleware.
Experience governing integration designs between SAP S/4HANA and enterprise applications.
Ability to identify and resolve integration risks and dependencies.
Strong understanding of SAP BTP integration and extensibility capabilities.
Experience evaluating BTP architecture and side-by-side extension strategies.
Understanding of how BTP supports Clean Core principles.
Experience governing enterprise application architecture and technical standards.
Ability to assess security, scalability, maintainability, and architectural alignment.
Strong communication, technical troubleshooting, and stakeholder management skills.
Experience coordinating across cybersecurity, infrastructure, data, integration, and application teams.

Nice To Haves

Experience with SAP NS2 environments and associated security and compliance considerations.
Experience with SAP RISE and cloud-hosted SAP environments.
Knowledge of SAP Integration Suite, ABAP extensibility, APIs, and middleware technologies.
Experience with SAP data migration and integration strategies.
Experience leading architecture review boards and technical design approvals.

Responsibilities

Provide technical leadership and architectural oversight for the SAP S/4HANA Transformation Program.
Review, challenge, and govern System Integrator solution designs, technical deliverables, and implementation approaches.
Establish and enforce SAP Clean Core principles and architectural standards.
Guide architecture decisions involving SAP BTP, integrations, extensions, and enterprise application connectivity.
Oversee end-to-end integration architecture between SAP S/4HANA and enterprise applications.
Lead architecture reviews, design discussions, and technical governance activities.
Identify and resolve complex technical issues, risks, dependencies, and architectural gaps.
Ensure solutions meet enterprise standards for security, scalability, maintainability, and upgradeability.
Coordinate technical decisions across Enterprise Architecture, Cybersecurity, Infrastructure, Data Management, application teams, and business stakeholders.
Support technical planning, testing, implementation readiness, and major program milestones.