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Lumen Solutions Group Inc. · 1 month ago

Principal Solution Architect

Washington, DC

Full-time

Hybrid

Lead/Staff

$91/hr - $102/hr

Lumen Solutions Group Inc. is seeking a Principal Solution Architect to design and oversee the implementation of architectural solutions for cross-domain business problems. The role requires translating complex technical ideas for both technical and non-technical stakeholders while ensuring products are scalable, secure, and compliant with industry standards.

Information Technology & Services

Growth Opportunities

Responsibilities

Design, govern, and oversee the implementation of robust, scalable, and efficient architectural solutions for cross domain business problems

Translate complex technical ideas into digestible concepts for both technical teams and non-technical stakeholders. Act as a liaison between engineering and business teams to ensure alignment and understanding

Ensure products are scalable, secure, performant, and maintainable within their domain

Ensure the reference architectures, standards, and guidelines of the organization's technology is safe, secure, stable and compliant with industry standards

Industry knowledge of services/transport/rail sector

Deep understanding of railroad or broader transportation logistics, including operational workflows for dispatch, scheduling, movement planning, capacity management, and asset management

Expertise in cloud (AWS, Azure) and hybrid stack, data-driven solutions, devops and continuous delivery

Qualification

Rail operations systemsCOTS operational platformsReal-time event architecturesLakehouse platformsAPI designCloud AWSCloud AzureIntegration architectureDigital twin modelsSafetyReliabilitySoft skills

Required

Strong understanding of rail operations systems: dispatching, crew, yard, fleet/EAM, RTTP feeds, PIS, GTFS-RT, service disruption workflows

Proven experience integrating COTS operational platforms (Siemens TPS.plan/live, Wabtec TMDS, IVU.rail, HASTUS, Maximo, PIS systems etc)

Deep knowledge of real-time event architectures (Kafka/MSK, streaming APIs, telemetry ingestion)

Familiarity with lakehouse platforms (Databricks) and semantic modeling for operational data

Experience designing Ops Command UI / single pane of glass solutions across multiple domains

Ability to architect system-of-systems integrations across dispatch, PIS, yard, crew, maintenance

Skilled in designing canonical real-time data models (train state, consist state, crew state, fleet readiness)

Hands-on capability for API design, interface mapping, and message normalization

Experience implementing digital twin, predictive models, or operational decision support is a strong plus

Understands safety, reliability, and regulatory constraints around rail mission-critical systems