Enterprise Architect - W2 Role

Loc: Washington, DC (Oniste) Contract W2 Randstad is seeking a high-caliber Principal Enterprise Architect Estimation Systems to serve as a key technical authority driving the R&D, design, and long-term evolution of advanced estimation platforms for a leading rail transportation client in the Washington, D.C. area.

Sitting at the intersection of enterprise architecture leadership and advanced computational science, this role requires deep expertise in physics-based modeling, statistical algorithms, and real-time data processing. You will lead cross-functional engineering teams through major legacy-to-modernization transformations-bridging mainframes with modern cloud-native, event-driven architectures-while aligning solutions with enterprise standards (TOGAF, BizBOK, DAMA-DMBOK) across operational, planning, and financial domains.

Architect and evolve scalable, high-accuracy estimation platforms utilizing event-driven microservices, real-time data processing, and distributed systems patterns.

Drive R&D initiatives applying advanced mathematics, statistics, optimization algorithms, and physics-based simulation models to solve complex, domain-specific estimation challenges.

Establish and enforce enterprise architecture standards aligned with frameworks such as TOGAF, BizBOK, and DAMA-DMBOK within a SAFe (Scaled Agile) environment.

Lead large-scale rail transportation modernization efforts, designing integrated solutions that address complex multi-domain business challenges spanning operations, planning, and finance.

Formulate and execute transition strategies migrating legacy platforms (IBM Mainframe, TPF) to modern, cloud-native tech stacks (Java, Spring Boot).

Act as the primary technical advisor to senior business and engineering leaders, translating complex requirements into architectural roadmaps while mentoring junior architects and engineers.

Bachelor's degree in Computer Science, Engineering, Applied Mathematics, Physics, or a related quantitative field (Master's degree preferred).

15+ years of total IT experience, including 10+ years in senior enterprise or systems architecture roles.

Proven track record delivering enterprise-scale architecture solutions within the rail transportation industry.

Demonstrated experience designing complex estimation, statistical, optimization, or physics-based modeling systems.

Deep technical knowledge of event-driven architectures, microservices, distributed systems, Java/Spring Boot, and real-time data frameworks alongside legacy systems (IBM Mainframe/TPF).

Working experience with enterprise frameworks (TOGAF preferred, BizBOK, DAMA-DMBOK) and 5+ years of experience operating within SAFe or equivalent Agile-at-scale environments.

Outstanding problem-solving ability with proven success influencing executive stakeholders and leading cross-functional engineering teams.

For applications and inquiries, contact:View email address on us.fitly.work