Engineer Service

Daniel S. Barclay

**** ****'s Neck Way; Reston, VA 20191

******@*******.***; 571-***-****; http://daniel.barclay.org/resume

OBJECTIVE:

Software development position using, and, ideally, creating, leading-edge

Semantic Web, rich web, and other XML and Internet technologies in a

collaborative team environment.

SUMMARY:

Senior Java software developer focused on web applications, web services,

XML technologies, and the semantic web, with 10 years of Java experience,

preceded by C and C++ product development experience in the electronic

design automation industry.

CLEARANCE: TS/SCI SSBI w/CI poly, current 2006-07-11

EXPERIENCE:

FGM, Inc.; Reston, VA Software and Systems Engineer Feb. 2003 - Jan.

2011

Web Services, Service Discovery/SOA, Security:

. Supported web service discovery and governance implementation using HP

SOA Systinet: Investigated service data model and customization

options. Wrote WDSL files and UDDI tModels. Generated taxonomy files

using XSLT. Installed and configured JBoss, Oracle, and SQL Server.

. Supported DoD Net-Centric Enterprise Services (NCES) web service

discovery implementation:

. Created UDDI tModels for service categorizations. Guided coding of

taxonomies in OWL.

. Documented mapping of NCES-specific service metadata to UDDI

constructs.

. Reworked and clarified example Java client for UDDI inquiry API

(SOAP web service).

. Configured DataPower XML firewall for LDAP-based retrieval of

certificate revocation lists for multiple certificate authorities;

used OpenSSL and OpenLDAP.

. Analyzed security technologies for NCES Information Assurance

Architecture: PKI and SSL; XML Encryption, XML Signature, and XML

Canonicalization; and SAML, XACML, cross-domain single sign-on (CDSSO),

and WS-Security.

. Developed XML-mediation demo web service in Java using WebLogic and

Axis; wrote WSDL.

Web Applications, Usability:

. Re-designed and implemented user workflow of XML schema registration

feature of DoD Metadata Registry J2EE web application: Designed web

page flow. Implemented in Java, WebLogic Portal, JSPs, HTML, and CSS.

Eliminated previously manual steps and avoided limited viability of

planned solution (Java application download and run locally).

. Overhauled schema ingester of Metadata Registry web application:

Refactored, corrected, and extended Java code, to handle more schema

constructs and correct for JaxMe schema parser API inconsistencies.

Annotated output with source line numbers for usability. Resulted in

more usable, complete, and maintainable ingester (and bonus for

avoiding temptation to re-write from scratch).

. Performed problem-solving such as combining knowledge of various

technologies (HTTP keep-alive and caching, SSL, TCP, LiveHeaders tool)

to diagnose web application performance problem and implement interim

solution (Java wrapper servlet setting HTTP headers).

. Maintained Wiki on Apache Server on Linux.

Semantic Web, Resource Metadata:

. Envisioned and created demonstration of using Semantic Web technologies

to link web service metadata from different sources (XML schema

registry RDB and web service WSDL files): Modeled schema and service

objects using RDFS and OWL. Extracted RDF triples from schema data dump

and WSDL using XSLT. Implemented entailment using Cwm; converted N3 to

RDF/XML. Supported development of Siderean Seamark Navigator queries

and rendering.

. Helped develop RDF/XML-compatible XML format for describing data

resources as key participant in DoD Discovery Metadata Standard Focus

Group: Researched RDF, RDFS, RDF/XML, and Dublin Core (DCMI) terms.

Guided group to structure XML format to follow RDF/XML striping. Co-

wrote XML Schema.

. Investigated semantic web technologies for DoD upper ontology and

situational awareness calendar projects: Researched RDF, RDFS, and OWL

in depth; also WordNet, Topic Maps, Cyc time- and event-related items,

RDF iCalendar, Prot g editor.

Complex Event Processing:

. Developed query flow for detection filtering system using Coral8

complex-event-processing (CEP) engine: Wrote SQL-like CCL queries to

combine data from adapters for disparate data sources, rank events, and

emit event notifications. Wrote adapters in Java. Generated Google

Earth KML using XSLT.

Other XSLT, XML Schema, XML:

. Overhauled XSL-FO-based report generator of import/export tracking and

decision-support system: Reworked XSLT transforms. Refined and

documented XML report-specification language, resulting in easier

follow-on maintenance. Wrote Java and XSLT to add new report-language

features and new reports.

. Developed schema-processing tools for missile defense XML message

schema development: Wrote XSLT to automatically transform schema files

directly into tabular data dictionary (HTML, MS Word). Guided writing

of scripts to generate other schema files from data modeled in

requirements management system, automating creating data dictionary

plus maintaining traceability. Also provided data-modeling and

architectural guidance regarding use of XML Schema and XML.

. Implemented XML-aware signing (per XML Signature) and encryption in

cross-security-domain guard: Used Java Cryptography Architecture API

and PKI/certificate tools. Also, analyzed XML Schema specification to

determine core schema-and-instance co-traversal algorithm needed for

validation.

Other Activities:

. Presented in-house talks (e.g., new Java features, XML Schema, Semantic

Web, web HCI).

Fannie Mae (via IQuest Solutions); Herndon, VA Java Analyst Sept.

2002 - Jan. 2003

Requirements Analysis, Business Object Modeling:

. Analyzed business requirements for security-trading tracking and

accounting system: Modeled domain objects in UML using Rational Rose

plus hyperlinked Word text. Documented use cases.

Mercator Software, Inc.; Reston, VA Lead Software Engineer Jan.

2002 - July 2002

Enterprise Application Integration (EAI) Product Development:

. Analyzed legacy C/C++ application integration broker for re-development

in Java: Modeled objects and use cases in UML. Validated multi-

threaded triggering and control algorithms in Java.

Digital Focus, Inc.; Herndon, VA Software Architect Dec. 1997 - Aug.

2001

Web Applications:

. Developed J2EE medical credentialing web application using servlets,

JSPs, and EJBs: Created common HTML table- and form-generation and

data-validation utility, reducing servlet development effort. Designed

REST-style URL hierarchy and dispatcher servlet. Created servlet base

classes for common protection domains and page navigation.

. Added security realm provider interface to J2EE reference

implementation (RI), to enable development on RI of web applications to

be deployed on WebLogic.

. Analyzed J2EE compliance of CRM web application code; identified

WebLogic-Server-specific code to target to improve portability.

. Created employee directory web application exposing LDAP data: wrote

servlet, deployed Tomcat.

. Created web-application project template to reduce project startup time

and cost: Created Ant build script; defined directory structures.

Supported WebLogic and J2EE RI; Windows and Unix/Linux.

Web Services, XSLT:

. Created web interface for SOAP web service interface of investment

calculation engine: Wrote controller Java servlets. Generated HTML

directly from SOAP XML using XSLT. Resulted in follow-on contracts.

GUI Development:

. Created end-user-configurable loan document generator for commercial

lending application. Extended Java Swing text classes to add

conditional and data-insertion constructs to create WYSIWYG editor for

document templates. Generated documents from templates plus loan data.

Designed metadata-driven interface, avoiding dependency on loan data

schema.

Compass Design Automation; Columbia, MD Staff Software Engineer Jan.

1987 - Sept. 1997

Electronic Design Automation (EDA) Product Development:

. Led team developing purpose-specific, OO-style database system in C for

storing parsed VHDL (hardware description language) descriptions of

circuit designs: Developed system API and internal data structures and

algorithms. Implemented data subclassing in C by generating code. Wrote

tool-integrator and end-user documentation. Provided pre- and post-

sales technical support; produced and shipped releases. Resulted in

core product generating revenue for 10 years.

. Designed and implemented VHDL simulator extension kit product:

Designed simulation kernel API and mapping from VHDL to C code calling

kernel API. Wrote C code generator and kernel reference implementation

(in C). Wrote kernel API documentation.

. Re-designed C intermediate representation of VHDL: Reduced memory size

by factor of 6, enabling 7x speed increase and second-generation sales.

Simplified interface for client code. Created conversion-support

library, with detailed instructions, to allow incremental conversion of

legacy client code, resulting in retaining customers.

. Designed intermediate representation of Verilog HDL; used custom HTML

tags to generate richly linked documentation.

. Developed formal verification tool GUI using Galaxy C++.

. Taught commercial VHDL courses for circuit modelers.

. Actively participated in IEEE VHDL standard interpretation and revision

committee.

EDUCATION:

M.S., Electrical Engineering; March 1987; Virginia Tech; Blacksburg, VA.

Thesis: An Automatic Test Generation Method for Chip-Level Circuit

Descriptions. (Used Prolog.)

B.S., Electrical Engineering with Computer Science minor, Magna Cum Laude;

June 1984; Virginia Tech; Blacksburg, VA.

CERTIFICATIONS, CONTINUING EDUCATION:

Sun Certified Programmer for the Java 2 Platform, 2001.

Attended 2009 Semantic Technology conference. Attend Northern Virginia

Software Symposium.

PROFESSIONAL ACTIVITIES, AFFILIATIONS, AND PUBLICATIONS:

Institute of Electrical and Electronics Engineers (IEEE).

Northern Virginia Java User's Group (NoVaJUG), Northern Virginia Ruby

User's Group (NoVaRUG), Washington Semantic Web Meetup.

Pre-publication technical reviewer of Core J2EE Patterns, by Alur, Krupi,

and Malks.

"A Kernel-Level VHDL Simulation Interface," presented at spring VHDL Int'l.

User Forum (VIUF), 1990.

"A Heuristic Chip-Level Test Generation Algorithm," Daniel Barclay and

James Armstrong, Proceedings of 23rd Design Automation Conference, 1986.

L2011-03-04prw

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