Principal AL/ML Data Scientist - AI, Vector Search & Agentic AI Platforms

ROLE OVERVIEWRed Arch Solutions is seeking a highly experienced, senior-level AI/ML Data Engineer to lead the design and implementation of enterprise-scale data platforms supporting a large-scale Agentic AI transformation initiative.With extensive experience delivering AI and machine learning solutions in complex enterprise environments, you will serve as a technical leader responsible for architecting the data ecosystem that powers vector search, Retrieval-Augmented Generation (RAG), large language model (LLM) applications, and emerging Agentic AI capabilities. You will work across infrastructure, cybersecurity, software engineering, and mission stakeholders to rapidly deliver scalable, secure, and reliable AI solutions.This role requires a seasoned engineer capable of communicating complex technical concepts and architectural tradeoffs to senior leaders, helping leadership teams understand the operational, mission, security, and business implications of emerging AI technologies while driving successful implementation of enterprise capabilities. The Red Arch Distinction: People FirstRed Arch Solutions is a flat, highly collaborative organization where your voice is heard. We prioritize work/life balance and individualized professional growth, backed by a 100% company-paid healthcare model, a robust annual training allocation, and an elite technical community solving our nation's most urgent national security challenges.KEY RESPONSIBILITIESEnterprise AI Platform Engineering: Architect, build, and maintain enterprise-scale data platforms supporting vector databases, semantic search, Retrieval-Augmented Generation (RAG), Agentic AI systems, and large language model applications.Data Architecture & Strategy: Establish and implement controls for data quality, lineage, source attribution, prompt and context traceability, explainability, and evaluation of AI system outputs.AI Data Governance: Establish and implement controls for data quality, lineage, source attribution, prompt and context traceability, explainability, and evaluation of AI system outputs.Technical Leadership: Lead architectural decision-making for AI-supporting data infrastructure, balancing performance, scalability, security, reliability, maintainability, and cost considerations.Cross-Functional Integration: Partner with Data Scientists, Machine Learning Engineers, Architects, Cybersecurity teams, and Software Engineers to translate AI requirements into production-grade capabilities.Executive Communication: Translate highly technical AI, machine learning, and data architecture concepts into clear operational impacts, risks, opportunities, and implementation considerations for senior leadership.Enterprise Coordination: Coordinate with stakeholders across multiple organizations to align AI initiatives, maximize reuse of enterprise capabilities, and eliminate duplication of effort.Operational Excellence: Implement monitoring, observability, and alerting to ensure the reliability, performance, and continuous improvement of AI-supporting data platforms.Mentorship & Engineering Excellence: Provide technical leadership and mentorship to engineers while promoting engineering best practices and innovation across the organization.Technology Evaluation: Assess emerging AI technologies, vector database platforms, retrieval frameworks, and engineering approaches to improve organizational AI capabilities.REQUIRED QUALIFICATIONSClearance: Active, current Top Secret / SCI with Polygraph is mandatory.Education: Bachelor’s degree in computer science, Engineering, Mathematics, Data Science, or a related quantitative discipline. Equivalent experience may be considered.Experience:20+ years of progressive experience in software engineering, data engineering, distributed systems, cloud architecture, or AI/ML platform development.Proven experience designing and delivering enterprise-scale AI, machine learning, generative AI, or Agentic AI solutions.Demonstrated success architecting and implementing production cloud-native data systems supporting advanced analytics and AI workloads.Proven experience working within complex enterprise environments managing security, infrastructure, technology dependencies, governance requirements, and competing priorities.Extensive experience designing data pipelines supporting machine learning models, vector databases, semantic search capabilities, and generative AI applications.Proven experience delivering complex technical solutions from strategic requirements through operational deployment while balancing schedule, performance, capability, and cost objectives.Technical ExpertiseExpert proficiency in Python, SQL, and modern software engineering practices.Deep experience with Azure, AWS, or Google Cloud data and AI platforms.Strong understanding of distributed systems, cloud-native architectures, MLOps, and AI platform engineering.Experience implementing vector databases, embedding pipelines, retrieval systems, and Retrieval-Augmented Generation architectures.Experience with CI/CD pipelines, orchestration platforms, infrastructure automation, and observability tooling.Communication & LeadershipExceptional written and verbal communication skills.Ability to communicate complex technical concepts to both technical and non-technical audiences.Proven ability to explain AI, machine learning, and data architecture concepts in terms of mission impact, operational outcomes, technical risk, and implementation tradeoffs.Experience influencing decisions and driving consensus among diverse technical and business stakeholders.DESIRED SKILLS & FRAMEWORKSExperience serving as a Principal Engineer, Lead Data Engineer, Solution Architect, or Technical Lead. Experience building and operating enterprise-scale vector search, RAG, knowledge management, and LLM-based platforms. Hands-on experience with large-scale distributed data processing frameworks. Experience leading engineering teams and mentoring junior and mid-level engineers. Experience supporting AI adoption efforts within large government, defense, intelligence, or highly regulated organizations. Familiarity with AI governance, model evaluation frameworks, explainability, and responsible AI implementation practices.Salary Range for this role 270-325K #CJ SummaryLocation: Reston, VA, United StatesType: Full TimeExperience: ExperiencedDepartment: AI/ML