• Provide full lifecycle support and IT thought leadership in systems engineering, digital transformation, data architecture and engineering, and enterprise architecture for commercial and government clients• Chief engineer for application programming interface (API) design, service (SOA and microservices) design and implementation, and business process automation; evangelize and lead the analysis, design, planning, and execution of digital process automation to successfully align information technology (IT) strategy to business goals and objectives; strong emphasis on integrated quality assurance and quality control, DevOps, and cloud platforms (AWS and Azure) • Served as lead systems engineer for assessment and evaluation of a decentralized health information system consisting of over 100 integrated modules supporting healthcare services at hundreds of IHS, tribal, and urban Indian health facilities across the US○ Developed the approach and framework for assessment, including definition of evaluation criteria, selection of system quality attributes, and conducting of gap analysis and risk analysis○ Provided technical leadership for the analysis of alternatives (AoA) that followed the initial system assessment; supported related workstreams such as IT infrastructure analysis and evaluation of telehealth/telemedicine capabilities subject to infrastructure constraints○ Helped develop the health information technology (HIT) and EHR/EMR system modernization / transformation roadmap • Served as a principal architect on a vendor team supporting an enterprise case management (ECM) assessment and analysis contract at a bureau of the Department of the Treasury○ Using an industry-leading iBPMS/case management cloud-native platform and integrated document-centric multi-model database platform, supported the design, development, and execution of client-defined scenarios and use case to demonstrate the platform’s differentiated capabilities and superior configurability

• Provided strategic and technical leadership to CEDCaP project teams; developed systems engineering guidance and reviewed and approved program- and project-level artifacts to guide system design, implementation, quality assurance, and quality control• Established, implemented, and led full lifecycle systems engineering initiatives and activities within the CEDCaP program• Thought leader to CEDCaP project teams in the delivery of new and enhanced capabilities in the areas of digital process automation and service-orientation• Worked closely with executive leadership to develop enterprise-wide IT modernization strategy• Led the CEDCaP Systems Engineering, Integration, and Test (SEIT) team comprised of multidisciplinary and cross-functional experts• Collaborated with service delivery partners in designing, developing, integrating, and testing heterogeneous on-premise and cloud-based systems: ○ Utilized industry standards and design patterns and developed reference architectures and reference implementations ○ Actively engaged program and project stakeholders to identify and resolve technical risks and issues• Led an enterprise-wide analysis of alternatives (AoA) to evaluate the Bureau’s enterprise software portfolio as the foundation for IT modernization strategy: ○ Recommended and acquired critical infrastructure to enable IT modernization strategy ○ Reduced estimated total cost of ownership (TCO) by 21% through combination of cost savings and cost avoidance by migrating to cost-efficient technologies and platforms • Collaborated with service delivery partners to design, implement, and test the enterprise hybrid (on-premise and cloud-based) 2020 Decennial Census solution built on Pega 7.2; design including security architecture, optimal deployment topology, and data and system architecture: ○ Based on number of concurrent users and data volumes, the internet-facing self-response component was the largest cloud-based Pega deployment then

• Provided system architecture and software engineering leadership to multiple program areas• Led software engineering team comprised of seventy-five engineers across five practice areas, each of which was led by a frontline manager• Senior Technical Advisor to the Affordable Care Act (ACA) Program: ○ Collaborated with lead engineers to develop system designs and solution architectures ○ Chief engineer for several initiatives within the ACA program• Evangelized and led the adoption of industry standards, design patterns, and technologies critical to IRS’ IT modernization goals; promoted business intelligence (BI), business process management (BPM), and event-driven architecture (EDA) through proofs of concepts (POCs): ○ Led an integrated project team (IPT) in developing business process models and proof of concept (POC) for real-time tax administration using event-driven architecture (EDA) and an open source software stack• Planned and directed engineering work streams in alignment with program's integrated master schedule and resource demands• Prepared and presented weekly reports to executive leadership detailing project statuses, risks, issues and related mitigation plans and resolutions

• Provided hands-on technical leadership in system engineering, software design, and solution architecture for Affordable Care Act (ACA) and Customer Account Data Engine (CADE2) programs: ○ Served as Senior Technical Advisor for ACA Program ○ Led the Technology Practice Group in advancing IRS' IT modernization efforts by identifying opportunities for technology rationalization, assessing alternative technologies, and making informed recommendations ○ Partnered with cross-functional teams to develop architecture models, proofs-of-concepts (POCs), and design and engineering documents ○ Led the planning and deployment of webMethods 8.2 enterprise service bus (ESB) development environment; collaborated with stakeholders to complete deployment in 34 days, 43% faster than the customary 60-day deployment cycle ○ Led an integrated project team (IPT) comprised of peer groups and industry partners in conducting an analysis of alternatives (AoA) and cost-benefit analysis (CBA) of a federated ESB environment• Promoted business process management (BPM) using BPMN 2.0 standard, business process management suites (BPMS), and case management platforms: ○ Led an IPT in reengineering enterprise taxpayer mail notification and departmental IT governance and internal control processes ○ Drove adoption of business intelligence (BI) and enterprise content management (ECM) platforms • Lead engineer on the Common Services Working Group (CSWG); collaborated with peer groups and industry partners to establish guidelines and standards for adoption of service-oriented architecture (SOA) ○ Identified candidate services and designed and developed service prototypes• Voting member of the Engineering Review Board (ERB) responsible for evaluating and dispositioning IT change requests • Developed and implemented a lightweight engagement model to reduce rework, eliminate duplication of effort, and improve risk management

• Led FMCSA’s Enterprise Architecture (EA) and Enterprise Information Management (EIM) practices including data and solution architecture work streams: ○ Documented enterprise information assets; established and implemented data governance and data quality standards across the enterprise ○ Collaborated with business stakeholders and IT partners to design and develop business process models and enterprise data models• Led a team of subject matter experts, business architects, data modelers, and database administrators in the design and phased implementation of an enterprise database system supporting XML-based data services for internal and external consumption• Led the architecture and design of Sentri, FMCSA’s mobile field application, which supports disconnected or offline mode: ○ Developed using .NET, C#, Windows Presentation Foundation (WPF), and Versant's db4o v8.x object-oriented database, Sentri interfaces with the enterprise database through data services that enable bi-directional data synchronization• Promoted use of business process management suites (BPMS') as cost-efficient service-enabled platforms: ○ Led a team of industry partners, architects, analysts, and developers in developing a BPMS-based solution to automate the agency’s IT change request process; the BPMS solution resulted in 25% savings over traditional development costs ○ Spearheaded the analysis, design and architecture of a BPMS-based prototype to manage the Mexican Long-Haul Carrier online registration process; evolved into an enterprise solution• In response to the challenges of reincarnated motor carriers and related undeliverable mail, led a team of engineers in the development of FMCSA’s Enterprise Notification System (FENS), a web service-enabled solution that auto-generates letters and notifications to registered motor carriers mailed via USPS utilizing Pitney Bowes' API for address validation, verification and normalization as well as postage metering

• Senior technical consultant for business process management (BPM), electronic content management (ECM), business intelligence (BI), and electronic document management (EDM); provided full software lifecycle support - i.e., requirements analysis, data and application architecture, design, development, and testing• Led a highly visible project at the Department of Homeland Security (DHS) to streamline the review and approval process for acquisition of information technology (IT) assets: ○ Worked with subject matter experts to gather functional and data requirements; developed business process models and logical and physical data models ○ Developed the solution using ASP.NET AJAX, C#, Workflow Foundation, SQL Server, MOSS 2007, and third-party components - e.g., Telerik ASP.NET AJAX UI controls and object-relational mapper (ORM) ○ Created project documents – i.e., project charter, project schedule, weekly status reports, risk logs, functional specifications documents, etc. ○ Met weekly with the customer, project sponsor, and other stakeholders to provide briefings on the project status and present demos of the evolving application; provided technical project management, resource planning and risk management ○ Liaised and collaborated with other contractors and service providers onsite to ensure inter-project dependencies were addressed and risks mitigated ○ Received multiple accolades for quality of work from the customer and service delivery partners• Worked closely with services executive and federal account manager to support business development, capture, and proposal development

• Application architect and lead developer for ASP.NET, C#, and VB.NET medium- to large-scale multi-tier data-centric applications; responsible for all phases of system development lifecycle (SDLC) - i.e., requirements analysis, data and application architecture, design, development, testing, and deployment. Used ASP.NET, C#, VB.NET, Silanis® ApproveIT® Desktop, LiveLink® API, and BizFlow® COM API as core development toolset. Application portfolio included: ○ Embedded components and services for automated business process management (BPM) solutions: ○ Designed and developed a suite of web services for automated workload management in workflow solutions ○ Built .NET wrapper libraries to expose functionality of LiveLink® API and BizFlow® COM API for use in ASP.NET applications ○ Digital signature and electronic signature solutions ○ Electronic document management systems (EDMS) and enterprise content management systems (ECMS)• Prepared system documentation including use cases (UCs), entity-relationship diagrams (ERDs), logical data models (LDMs), etc.; ensured compliance with CMMI Maturity Level 2 across all assigned projects• Served on Investment Review Working Group (IRWG); evaluated IT investment proposals and made recommendations to Office of the CIO and Capital Planning & Investment Control (CPIC) Board• Collaborated with Contracting Officer (CO) and Contracting Officer’s Representative (COR) to prepare statements of work (SOWs) and task orders• Served as technical project manager for contracts totaling millions of dollars

• Created reusable development frameworks including .NET/C# data access layer/object-relational mapper (ORM) and logger frameworks. Leveraging these frameworks, development teams reduced software development cycles while writing more robust code: ○ Shortened development cycles resulted in lower project costs, quicker solution delivery, and improved customer satisfaction ○ Through branch-wide presentations and team-level demos, trained development teams in use of the evolving frameworks• Supported the Lead DBA in data management activities, database design and architecture, data modeling, data analysis, and database design reviews• Proposed and implemented several software engineering standards for use by development teams; additionally, established the Code Asset Library (CAL) that served as the central repository for software engineering best practices and guidance, coding standards, and reusable software components• Served on the Standards Working Group (SWG), the Software Engineering Process Group (SEPG), and the SCAMPI (Standard CMMI Appraisal Method for Process Improvement) Appraisal Team that evaluated and rated existing standards and processes: ○ As a member of the SCAMPI Appraisal Team, participated in ‘B’ Appraisal, Readiness Review, and ‘A’ Appraisal for Maturity Level 2 of CMMI-SE/SW version 1.1 (Staged Representation)• Served as a voting member of the Enterprise Architecture Collaboration Team; led the launch of NIAID’s enterprise architecture (EA) initiative and development of its initial EA reference models

• As short-term consultancy, completed logical and physical database design for a three-tier business application with SQL Server 2000 database: ○ Created stored procedures for all create, read, update, and delete (CRUD) operations ○ Configured and ran Data Transformation Service (DTS) packages for import of data from the legacy system through extract, transform and load (ETL) operations

• Designed, developed, tested, and deployed C++ software components; worked closely with product managers and other software engineers to define requirements specifications and develop project schedules: ○ Used SQL Server 2000 for backend development, CodeBase API for development of C++ console applications, and ZyLAB’s Developer Kit (ZDK) as full-text indexing and retrieval engine• Successfully designed and developed a code generator for auto-generating C++ class wrapper code used for accessing SQL Server 2000 data through a CodeBase 4.0 API• Completed the logical and physical database designs for multiple projects and successfully developed a data migration utility in C++ to port legacy Visual FoxPro data to SQL Server 2000; ported the databases of desktop and web instances of LivEdgar client-server application from Visual FoxPro to SQL Server 2000; worked with the Database Administrator (DBA) to successfully configure merge replication in SQL Server 2000 utilizing a single publisher and four updating subscribers• In response to the requirements of the Sarbanes-Oxley Act of 2002, modified the business rules and functionality of GSI’s financial information database to bring it into compliance ahead of schedule; successfully completed the enhancement of C++ indexing utility to handle the search and retrieval of tagged document tokens at higher granularity