Senior Systems Architect

About the role

The Sr. System Architect is a key technical leader responsible for driving research, design, and evolution of advanced estimation systems within a rail transportation domain. This role requires deep expertise in algorithms, applied mathematics, and physics-based modeling, combined with enterprise architecture leadership. This individual will lead R&D efforts for next-generation estimation capabilities, ensuring solutions are accurate, scalable, and aligned with enterprise architecture standards.

Essential duties & responsibilities

• Lead the architecture, design, and evolution of advanced estimation platforms, incorporating algorithmic, statistical, and physics-based modeling approaches.
• Define and implement enterprise-grade system architectures leveraging modern patterns such as event-driven architecture, microservices and distributed systems, and data-intensive and real-time processing frameworks.
• Establish architectural standards aligned with frameworks such as TOGAF, BizBOK, and DAMA-DMBOK.
• Drive research and development (R&D) initiatives focused on estimation methodologies, including optimization algorithms, simulation models, and predictive analytics and probabilistic modeling.
• Apply advanced mathematics, statistics, and physics principles to solve complex estimation challenges.
• Evaluate and integrate emerging technologies and techniques into the estimator ecosystem.
• Architect and deliver large-scale rail transportation modernization solutions, ensuring domain alignment.
• Design systems that solve multi-domain business problems spanning operations, planning, and financial estimation.
• Provide thought leadership in enterprise information management and data architecture.
• Guide engineering teams across a broad technology landscape, including legacy platforms (IBM Mainframe, TPF) and modern stacks (Java, Spring Boot, cloud-native services).
• Drive transition strategies from legacy to modern, event-driven ecosystems.
• Act as the technical authority and primary advisor for estimation systems across business and engineering stakeholders.
• Collaborate with product, engineering, and business teams to translate complex requirements into scalable architectures.
• Mentor engineers and architects in advanced modeling, system design, and architectural best practices.

Requirements & qualifications

• Bachelor's degree in Computer Science, Engineering, Applied Mathematics, Physics, or related field. Advanced degree preferred.
• 15+ years of IT experience, including 10+ years in architecture roles.
• Demonstrated experience delivering enterprise-scale solutions in rail transportation.

Technical expertise

• Strong foundation in algorithms and data structures, applied mathematics, statistics, or physics-based modeling.
• Proven experience designing complex estimation or modeling systems.
• Deep knowledge of event-driven architecture, distributed systems and microservices, and enterprise data and information architecture.

Frameworks & methodologies

• Experience with enterprise architecture frameworks (TOGAF preferred).
• Working knowledge of BizBOK and DAMA-DMBOK.
• 5+ years of SAFe experience (or equivalent Agile at scale framework).

Professional skills

• Exceptional problem-solving skills with ability to address highly complex, ambiguous challenges.
• Excellent verbal and written communication skills.
• Proven ability to influence senior stakeholders and lead cross-functional teams.