Daniel Stubblefield Portfolio

Portfolio · September 2026

AI-Enabled Business Process & Operations Architecture

I translate complex business and operational requirements into AI-enabled systems that automate work, connect platforms, and produce measurable gains in speed, quality, and cost.

The 30-second version

  • River City OS — built and operate a live AI-enabled business operations system in production today: Python/FastAPI backend, Supabase/PostgreSQL data layer with row-level security, Gmail API integration, deployed on Render, with a human-approval gate before any external action.
  • Cyient — decomposed a complex geospatial mission requirement from client L3Harris into an implementation plan and helped architect the Janus Geography digital-twin delivery, supporting mission users including NGA and NRO on a program valued at more than $10M.
  • TA Group Holdings (Averro/NuWest) — led workforce transformation and AI-driven program automation for aerospace and technology organizations including Microsoft and Blue Origin, building specialized AI search tools for orbital-launch-vehicle and rocket-propulsion engineering talent.
  • Versant Workforce Solutions — as founding VP, directed AI and agentic automation for scheduling, compliance, analytics, and workforce optimization as Product Owner across ATS, HRIS, CRM, and reporting platforms.
  • Modis, Unum, Versant, River City — integrated AI-assisted resume scoring, evaluation, outreach automation, and data governance into Bullhorn and Workday; at Unum, also built AI-assisted interview scheduling tools and automated ServiceNow maintenance-ticket fulfillment.
  • Credentials — SAFe 6.0 Product Owner/Product Manager and Scrum Master certified; M.S. in Artificial Intelligence and Machine Learning in progress, University of the Cumberlands, capstone beginning October 2026.

Best-fit roles: AI Product Leader, AI Business Process Architect, AI Transformation Leader, Enterprise AI Adoption Lead, Intelligent Automation & Operations Architect, and AI Solutions Architect roles with a hands-on build component.

92researched target companies in a live pipeline
42personalized emails queued in production
$10M+program impact supported at Cyient
10+years across product, program, and AI delivery
2SAFe 6.0 certifications, plus M.S. AI/ML in progress

Executive profile

Business process improvement through AI

I design and implement AI-enabled operating systems that improve business processes, connect enterprise platforms, automate multi-step workflows, and produce measurable gains in throughput, quality, cost, and decision-making. My work combines architecture, product judgment, operational ownership, governance, and adoption.

My path runs from technical recruiting and workforce transformation at Unum, Modis, and TA Group Holdings, through program and product ownership on complex technical programs at Cyient and Versant, to founding River City Consulting and personally designing, building, and operating a live AI-enabled operating system. Each step added a layer: domain fluency, program leadership, product ownership, and now hands-on AI system delivery.

Python, FastAPISupabase/PostgreSQLGoogle Cloud Microsoft cloud servicesGmail API & OAuthBullhorn WorkdayServiceNowRAG & vector retrieval Function callingAgent orchestration (MCP-style)Audit logging & guardrails Human-in-the-loop review

Case studies

Five programs across founder-led product, defense, aerospace, and enterprise workforce technology

01

River City OS

A live AI-enabled business operations system

Employer: River City Consulting (founder)

As founder of River City Consulting, I needed a single operating system to find, qualify, and act on new business opportunities without losing founder time to fragmented manual research, tracking, and outreach spread across disconnected tools.

  • Python/FastAPI backend deployed on Render, connected to a Supabase/PostgreSQL data layer with row-level security
  • Gmail API integration via OAuth for inbox monitoring, message classification, and approved outbound send
  • Structured opportunity, contact, approval, and audit-event tables as the system of record
  • Claude-based research, scoring, and message-preparation workflow, with human approval required before any external communication leaves the system
Evidence. The opportunity pipeline is live with 92 independently researched target companies and named contacts. The first outreach batch, 42 personalized messages built from real contact data, is queued in production with a human approval step still required before anything sends. A pre-send review caught and excluded one contact record whose email address pointed to the wrong company's domain — a concrete example of the quality gate catching a real error before it reached an outside recipient.
Code: github.com/WazukiSan/river-city-os
02

Janus Geography

A defense geospatial digital-twin program

Employer: Cyient · Client: L3Harris · Mission users: GIS team, supporting NGA and NRO

At Cyient, I helped architect the implementation of the Janus Geography digital-twin program for a GIS team. Working from a mission requirement defined by client L3Harris, I decomposed the need into a structured implementation plan, then translated that plan for the engineering and delivery team that built and deployed the system, supporting mission users including NGA and NRO — a program valued at more than $10M in impact.

  • Converted a complex mission need into a structured, implementable plan
  • Bridged mission stakeholders, the GIS team, and the engineering team executing the build
  • Applied geospatial, IIoT, and connected-systems context to guide planning decisions
03

AI-assisted discovery for scarce technical domains

Evidence matching for exceptionally scarce technical profiles

Employer: TA Group Holdings (Averro/NuWest) · Role: Workforce Transformation & Technology Program Manager, Aerospace & Technology Solutions · Jan 2021–Nov 2022

Leading workforce transformation and technology program delivery for aerospace and technology organizations, including programs with Microsoft and Blue Origin, I developed AI-supported research and evidence-matching workflows that convert complex technical requirements into structured criteria, search for and normalize evidence on exceptionally scarce technical profiles, apply deterministic requirements, and use AI reasoning to assess fit and flag missing information before any outreach happens. This approach was applied to aerospace, avionics, propulsion, and orbital-launch-vehicle engineering domains supporting the Blue Origin program.

  • Translated complex requirements into structured decision criteria
  • Combined deterministic rules with AI reasoning and evidence synthesis
  • Preserved expert review before any outreach or other consequential action
  • Generalizes to due diligence, vendor evaluation, and compliance review — any workflow that requires verifying scarce or hard-to-confirm information before acting on it
04

AI-assisted digital intake and service funnels

The intake experience is AI-assisted while conventional cloud infrastructure handles hosting, persistence, authentication, and delivery. AI accelerates content creation, request interpretation, and routing, while a human retains final review on anything consequential. Measured on completion rate, step-level drop-off, staff minutes per request, routing accuracy, and system cost per completed request — the same funnel architecture supports customer inquiries, onboarding, qualification, case routing, scheduling, and escalation across business functions.

05

AI administrative assistant for founder operations

Employer: River City Consulting (founder)

The assistant captures work from email, calendar, notes, and forms; maintains structured task state; applies priority and deadline rules; prepares drafts and briefs; requests approval where needed; and logs outcomes. This work uses the same operating patterns found in ClickUp and Airtable — structured records, owners, statuses, due dates, views, automation triggers, exception queues, and dashboards — which I have designed and integrated across enterprise operating platforms including Bullhorn, Workday, and ServiceNow, alongside Supabase/PostgreSQL, service funnels, and Google and Microsoft productivity workflows.

Enterprise AI integrations

Workflow, scheduling, and fulfillment automation across Modis, Unum, Versant, and River City

ImplementationArchitecture and integrationOperational value
Bullhorn and Workday AI integration (Modis, Versant, Unum, River City)Helped integrate AI-assisted resume scoring, evaluation, workflow routing, outreach automation, and data governance through CRM/HRIS data and backend API patterns.Improved consistency, throughput, and quality of the operating workflow at each employer.
Interview scheduling automation (Unum)Built AI-assisted interview scheduling tools coordinating multiple stakeholders and calendars in a large corporate environment.Reduced scheduling effort, handoff delays, and avoidable coordination errors.
ServiceNow fulfillment (Unum)Built administrative automation for maintenance-ticket intake, routing, fulfillment, status, and exception workflows.Accelerated request handling and created traceable operational ownership.
Scheduling, compliance, and analytics automation (Versant)As Product Owner for ATS, HRIS, CRM, and reporting platforms, directed AI and agentic automation for scheduling, compliance, analytics, and workforce optimization.Improved consistency and executive visibility across a founding operating platform.
Backend API layer (River City Consulting)Built the backend API layer using structured JSON contracts to move data among AI services, operational databases, cloud platforms, and enterprise systems.Separated business logic from vendor interfaces and supported reusable integrations.

Enterprise AI workflows were designed around role-based access, appropriate data use, human review, traceable decisions, structured records, and controlled movement of personal and operational data — governance treated as part of the architecture rather than a final compliance step.

Additional systems experience

Evidence beyond current generative AI builds

Experience (employer)System relevanceContribution
Caterpillar Defense IIoTConnected assets, sensors, cloud data, and dashboarding.Program and product leadership across capture, integration, visibility, and delivery.
Janus Geography digital-twin (Cyient; client L3Harris)Complex geospatial implementation for a GIS team, supporting mission users including NGA and NRO.Helped architect the implementation, decomposed mission requirements into a plan, and coordinated delivery with the engineering team; supported a program valued at more than $10M.
Aerospace talent search tools (TA Group Holdings, Averro/NuWest)AI-assisted discovery for niche aerospace, avionics, and orbital-launch-vehicle engineering domains supporting Microsoft and Blue Origin programs.Designed the discovery, evidence-matching, and verification workflow for exceptionally scarce technical profiles.
Scheduling, compliance, and analytics automation (Versant)AI-enabled workforce startup; ATS, HRIS, CRM, and reporting platforms.Product Owner directing AI and agentic automation for scheduling, compliance, analytics, and workforce optimization.
Enterprise operations leadershipHigh-volume workflows, stakeholders, and process governance.Standardization, adoption, data integrity, and change leadership.
Business operations and delivery (River City Consulting)Operating-system state, funnels, and client workflows.Workflow design, exception handling, service levels, and outcome measurement.
SAFe product leadershipBacklogs, priorities, acceptance criteria, dependencies, and risk.Converts business needs into sequenced technical work and quality gates.

Architecture ownership

Versant and River City operating scope

Across Versant and River City, I owned or helped lead the full lifecycle of agentic and non-agentic AI implementation: opportunity discovery, architecture, product selection, workflow design, delivery standards, measurement, mentoring, and continuous improvement. As founding VP at Versant, I was Product Owner for the ATS, HRIS, CRM, and reporting platform suite and directed AI and agentic automation for scheduling, compliance, analytics, and workforce optimization; as founder of River City, I apply the same ownership model end to end, including build-versus-buy criteria and quantified ROI for every product.

ResponsibilityApplied experience
End-to-end automation architectureDesigned connected workflows across business development, operations, client experience, finance, and content.
Agent pipelinesArchitected multi-step pipelines that ingest, normalize, score, research, prepare actions, obtain approval, execute, log outcomes, and trigger follow-up.
Build versus buyCreated repeatable criteria covering strategic differentiation, data governance, integration effort, reliability, time to value, total ownership cost, and vendor dependency.
Technical standardsEstablished expectations for schemas, APIs, documentation, approval controls, auditability, testing, reusable components, and production handoff.
Production deliveryBuilt systems for real operational volume, including sourcing, outreach, client workflows, applicant experience, service requests, and business administration.
ROI accountabilityQuantified labor savings, error reduction, throughput, conversion, revenue contribution, operating cost, and payback for AI products and automations.
MentorshipLed and developed technical, product, and operational contributors through architecture patterns, debugging, documentation, delivery discipline, and feedback.
Technology scoutingContinuously evaluated models, agent frameworks, automation platforms, cloud services, and integration approaches.

Production standards

How I would govern an automation portfolio

StandardQuality gate or measure
ArchitectureNamed owner; inputs, outputs, dependencies, data stores, and failure modes.
DataSchema validation, traceability, access rules, and no model memory as system of record.
SafetyRisk tier, approval boundary, least privilege, and unsafe-action controls.
ReliabilityTimeouts, bounded retries, idempotency, exception queues, health checks, recovery.
EvaluationNormal, edge, and adversarial tests; human revision and override rates.
ObservabilityStructured logs, workflow IDs, latency, cost, failures, alerts, and outcomes.
DocumentationDiagram, runbook, decision records, change history, and support owner.
ROIBaseline, target, actual benefit, operating cost, payback, and retirement threshold.

Cross-industry opportunity map

Reusable AI process-improvement patterns

AreaPotential implementationOutcome
Customer experienceGrounded knowledge, triage, recommendation, and escalation assistant.Faster responses with human escalation.
Customer journeyLead-to-service orchestration across inquiry, onboarding, delivery, support, and retention.Consistent handoffs and fewer missed moments.
OperationsCoordination across requests, assignments, inspections, exceptions, inventory, and readiness.Process visibility and fewer delays.
MaintenanceIssue classification, asset history, ticket routing, and recurring-failure analysis.Faster resolution and fewer repeats.
FinanceInvoice extraction, duplicate detection, matching, flags, and exception routing.Less manual entry and fewer errors.
ContentApproved-source pipeline with brand checks, factual validation, approval, and feedback.More throughput with quality control.
Voice of customerReview, survey, and message intelligence with themes, risk flags, and action tracking.Earlier detection of experience problems.
LeadershipDashboard for automation coverage, exceptions, health, ROI, and priorities.One view of leverage, risk, and priorities.

Delivery framework

From process discovery to measurable improvement

PeriodFocusDeliverables
DiscoverUnderstand the processProcess map; users and owners; baseline time, cost, errors, volume, risk, data, and constraints.
PrioritizeSelect the right interventionValue, feasibility, risk, effort, adoption, build-versus-buy, and expected-payback decision.
DesignCreate the operating architectureSystem boundary; workflow; data contracts; controls; exceptions; evaluation plan; support model.
DeliverShip and operationalizeProduction implementation; integration; testing; documentation; training; monitoring; ownership.
MeasureImprove or retireActual ROI; adoption; reliability; accuracy; exception rate; feedback; architecture debt; next iteration.

Prioritization scores business value, current labor, volume, error cost, revenue potential, feasibility, data readiness, implementation effort, risk, compliance, time to value, and owner readiness — this prioritizes value rather than request volume. Outcome formulas: annual benefit equals labor savings plus errors avoided plus incremental contribution margin; ROI equals annual benefit minus annual system cost, divided by annual system cost. Each estimate is labeled observed, calculated, targeted, or projected.

Graduate AI and machine learning work

University of the Cumberlands

M.S. in Artificial Intelligence and Machine Learning, capstone beginning October 2026. Graduate work connects machine learning, data preparation, applied AI, human-computer interaction, and responsible AI to practical systems design.

Academic areaApplied work and toolsArchitecture relevance
Data preparation and analyticsKNIME Titanic workflow with CSV ingestion, inspection, missing-value treatment, descriptive statistics, skewness, kurtosis, and visualization.Demonstrates reproducible data preparation, data-quality decisions, analysis, and visual workflow development.
Machine and deep learningPython, Jupyter, Google Colab, RapidMiner, TensorFlow, neural networks, CNNs, RNNs, training, testing, and model evaluation.Supports informed decisions about data, models, evaluation, deployment boundaries, and traditional predictive AI.
RAG and AI applicationsRetail-investor RAG and LLM chatbot using Python, VS Code, GitHub, Jupyter, Hugging Face, Gradio, retrieval pipelines, and interface design.Demonstrates retrieval-grounded generation, application architecture, deployment, and human-computer interaction.
Responsible AIPrivacy, informed consent, data minimization, behavioral profiling, fairness, human oversight, testing, logging, accountability, escalation, and misuse analysis.Provides a governance foundation for high-risk workflows and human-controlled AI systems.
Research and capstoneCapstone begins October 2026; research preparation spans applied AI, ethics, privacy, evaluation, and business implementation.Extends the portfolio through a formal research and evaluation process.

Certifications: SAFe 6.0 Product Owner/Product Manager (PO/PM) · SAFe 6.0 Scrum Master (SSM) · AIRS Certified Senior Technical Recruiter