Senior Systems Architect

Company Description 
Lumen Solutions Group Inc. is a technology consulting Services company based in Florida. We provide a wide array of experienced business and IT professionals supporting clients from solution design to implementation and support. We specialize in professional IT consulting services, IT Staffing, Business/IT Strategy, Business Process Blueprints, Enterprise Architecture, and Enterprise Transformation. 
 
Job Role: Senior Systems Architect
Job Location: Washington, DC (Remote - Quarterly travel required for PI Planning (Washington, D.C. or Wilmington, DE)  
Job Type: Contract
  
JOB SUMMARY
Role Overview
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
Architecture & Technical Leadership

• 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
  • Data-intensive and real-time processing frameworks
• Establish architectural standards aligned with frameworks such as TOGAF, BizBOK, and DAMA-DMBOK.

 
R&D and Algorithmic Innovation

• Drive research and development (R&D) initiatives focused on estimation methodologies, including:
  • Optimization algorithms
  • Simulation models
  • 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.

 
Domain & Solution Design

• 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.

 
Technology Leadership

• Guide engineering teams across a broad technology landscape, including:
  • Legacy platforms (IBM Mainframe, TPF)
  • Modern stacks (Java, Spring Boot, cloud-native services)
• Drive transition strategies from legacy to modern, event-driven ecosystems.

 
Collaboration & Leadership

• 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.

 
Education & Experience

• 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
• 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.

 
Lumen Solutions Group Inc is an equal opportunity employer. All qualified applicants will be considered for employment without regard to any legally protected status.