Checkpoint commit
[pwan.org.git] / content / pages / resume.rst
1 Jude Nagurney
2 #############
3
4 .. :date: 2019-07-14
5 .. :tags: resume
6 .. :category: resume
7 .. :author: Jude N
8 .. :status: hidden
9
10 | 1136 Forest Edge Drive
11 | Reston, Virginia, 20190
12 | Phone: (703) 829-0744
13 | jude.nagurney@gmail.com
14
15 =======
16 Summary
17 =======
18
19 | I'm a results-oriented software engineer with a strong focus on agile and devops processes.
20
21 =================
22 Technical Skills:
23 =================
24
25 - **Languages** : Python, C/C++, Ruby, Perl, Java, SQL, Bash, lua, Expect, Tcl/Tk, UML OCL, COBOL
26 - **Tools** : Puppet, Salt, Cobbler, Jenkins, emacs, vi, Jira, git, Gitlab, Docker, Mercurial, Subversion, Jira, SELinux
27 - **Frameworks** : Django, Angular, Pylons, Rails, SqlAlchemy
28 - **Operating Systems** : Linux (Ubuntu, Debian, RedHat, CentOS, Raspbian), Microsoft Windows, vxWorks, Solaris
29 - **Databases** : PostgresSQL, MySQL, Oracle
30 - **Standards Expertise** : SONET, SDH, TL1, LMP
31
32 ----
33
34 ===============
35 Work Experience
36 ===============
37
38 ------------------
39 Layer 2 Technology
40 ------------------
41 | **Reston Virginia**
42 | **October 2016 - Present**
43
44 -----------------
45 Software Engineer
46 -----------------
47
48 Developed and maintained Python-based software projects
49
50 - Developed an SMS-based solution for the Netgear LTE Mobile Horspot Router
51 This included a deep dive into the AT modem commands used for sending and receiving SMS messages.
52
53 - Developed SMS-based solutions using services such as Twilio, Plivo, Nexmo, and Vitelity.
54
55 - Wrote a Errbot plugin for reporting open merge requests that were waiting for peer reviews.
56
57 - Worked on porting projects to Raspbian to run on a Raspberry Pi 3 Model B.
58 This included rebuilding packages for the arm7 architecture.
59
60 - Developed and maintained Salt states and Puppet manifests for various projects.
61
62 - Developed and maintained Jenkins continuous integration jobs for various projects.
63 Also proactively tracked down the root causes of build failures when the jobs failed.
64
65 ---------------------
66 Applied Security Inc.
67 ---------------------
68 | **Reston Virginia**
69 | **March 2010 – October 2016**
70
71 .....................................
72 Software Engineer (Development Group)
73 .....................................
74 | **April 2016 - October 2016**
75
76 Wrote Python code for new projects and extended existing Python code bases
77
78 - Extended a project to dynamically allocate AWS hosts based on system usage.
79
80 - Wrote Python code for sending and receiving SMS messages through Plivo and Twilio
81
82 - Developed and maintained Puppet manifests for development projects
83
84 ..................................
85 Software Engineer (Security Group)
86 ..................................
87 | **March 2014 - April 2016**
88
89 Extended devops practices to cover security reviews
90
91 - Introduced an SELinux strict policy workflow allowing developers to do most of the work associated with setting up a policy.
92 Previously all policy work was done by a single engineer. Now policy work can be distributed across the development team.
93
94 - Continued supporting puppet infrastructure for both the dev and ops environments, especially with respect to security-related changes.
95
96 .....................................
97 Software Engineer (Engineering Group)
98 .....................................
99 | **March 2012 - March 2014**
100
101 Introduced 'infrastructure-as-code' to the ASI Engineering group.
102
103 - Introduced Puppet and Cobbler provisioning into the Engineering workflow, cutting down the time it took from them to bring up new data centers drastically, and increasing consistency across all data centers.
104
105 - Captured the state of the existing Engineering infrastructure in Puppet manifests
106
107 - Introduced git and rpm packaging to internal Engineering projects
108
109 - Liaison between development and operations, especially with respect helping development write code that wouldn't be denied against operation's SELinux policies.
110
111 ........................................
112 Software Engineer (Web Technology Group)
113 ........................................
114 | **March 2010 - March 2012**
115
116 Managed, developed and maintained the Web Technology infrastructure environment.
117
118 - Deployed Puppet across the WT infrastructure machine (DNS, Jenkins, Mercurial, Cobbler) as well as project-specific build server and test machines. Wrote scripts for monitoring the health of the puppet infrastructure.
119
120 - Designed the architecture for a custom internal cloud for quickly building stacks of test VMs based on Puppet, Cobbler, PDNS, and VMWare ESX, and deployed a majority of the components.
121
122 - Extended the number of Jenkins jobs to cover all WT projects, including building rpm/deb packages, publishing the packages to an internal repository, and then installing the packages from the rep to test machines.
123
124 - Wrote and maintained a script to verify Jenkins jobs were configured consistently across WT.
125
126 - Maintained the WT DNS zones and monitored the accuracy of the DNS records over time.
127
128 - Tuned the WT VMWare ESX servers and performed troubleshooting on slow VMs.
129
130 - Developed and maintained the packaging code of WT project
131
132 - Wrote and maintained RPM spec files for CentOS-based projects and Debian build directories for Ubuntu-based projects.
133
134 - Wrote and maintained /etc/init.d/ scripts for many WT projects.
135
136 - Maintained yum and apt package repositories
137
138 - Designed, developed and maintained a shared report building tool.
139
140 - Designed and implemented a Django application for creating ad-hoc reports.
141
142 - Designed and implemented Django and Pylons clients for the reporting tool.
143
144 ----
145
146 -------------
147 NeuStar, Inc.
148 -------------
149 | **Sterling, Virginia**
150 | **March 2009 – February 2010**
151
152 .........................................
153 Software Engineer III (UltraDNS Services)
154 .........................................
155
156 Maintained the UltraDNS XML API and AXFR services.
157
158 - Designed, implemented and deployed a system for maintaining secondary zone TSIG keys
159
160 - Extended and maintained the UltraDNS Python-based XMLRPC API .
161
162 - Extended and maintained the UltraDNS AXFR/IXFR zone transfer utility, written in C++.
163
164 - Extended and maintained a utility for gathering DNS query timing statistics.
165
166 - Worked on setting up consistent build procedures across the UltraDNS product line.
167
168 - Worked closely with off-site engineers in Arizona and India.
169
170 ----
171
172 ---------------
173 StackSafe, Inc.
174 ---------------
175 | **Vienna Virginia**
176 | **November 2006 – January 2009**
177
178 ..............................................
179 Senior Software Engineer (Test Center Product)
180 ..............................................
181
182 Designed, developed and maintained StackSafe's flagship Test Center product, which was awarded the 2008 ITIL Innovation of the Year.
183
184 - Designed, implemented, maintained, and documented the product's TurboGears-based licensing system, including the design of its PostgreSQL database, and the sqlalchemy-migrations needed between releases.
185
186 - Designed, implemented, and maintained the licensing and upgrade portions of the product's Rails-based GUI, including a Ruby-based cron job which would occasionally poll the upgrade server for new releases.
187
188 - Designed, implemented, and maintained the product's Ruby-based command line interface.
189
190 - Developed and maintained the products Python-based storage daemon, which was capable of surfacing a virtual machines QEMU disk image over the network by using qemu-nbd and nbd-client.
191
192 - Helped develop and test the product's Python-based management daemon which was responsible for starting and stopping virtual machines.
193
194 - Performed root cause analysis after build failures, sometimes having to dig pretty deep into code I was not written , including Python, C++, Ruby , and Perl code and bash scripts Many times these failures turned out to be locking/synchronization issues between various system components.
195
196 - Maintained the Debian packages and apt-get repository using reprepro.
197
198 - Implemented and maintained the installation scripts associated with the products deb-based packaging.
199
200 - Customized the Debian install process to install our product along with the normal Ubuntu server installation, and to verify that the host machine supported virtualization. Since the Debian install process is not documented very well, this usually involved having to walk through the Debian-installer source to find out how it worked.
201
202 - Designed, implemented and maintained the product's build environment, including a Python based nightly-build script which built all the source, loaded it onto the appropriate test machines, and run the smoke tests.
203
204 - Acted as the primary QA engineer until a full time tester was hired, leading bi-weekly bug scrubs, and making sure all the outstanding issues were resolved before cutting a release.
205
206 - Championed unit testing as an integral part of the normal development environment
207
208 - Participated in code reviews, and monitored the SVN commit notices for questionable commits, especially after build failures.
209
210 - Used Puppet to maintain the configuration Engineering lab's collection of build and test machines.
211
212 - Submitted patches and bugs against the open source projects we were using on the product.
213
214 - Worked closely with off-site engineers in California and New Jersey.
215
216 ----
217
218 -------------
219 Cisco Systems
220 -------------
221 | **Herndon Virginia**
222 | **November 2000 – September 2006**
223
224 ..........................
225 Lead Engineer(LMP Feature)
226 ..........................
227
228 Led development LMP (RFC 4204) feature on the 15454DWDM multi-service transport platform.
229
230 - Wrote design document and test plans for the LMP feature.
231
232 - Implemented the IDL, CORBA layer, and TL1 (Transaction Language 1 – a widely used telecommunications management protocol) interface code for LMP feature
233
234 - Tracked incoming defect reports for the LMP implementation
235
236 - Participated in successful interoperability tests with the Calient PXC at the KDDI research labs outside Tokyo. Fixed and retested minor issues on-site during testing.. KDDI was very impressed with the quick turnaround time, saying it had taken a competitor months to make similar changes.
237
238 - Trained support engineers in the LMP feature during technology transfer
239
240 .................................
241 Lead Engineer (15600 TL1 Feature)
242 .................................
243
244 Led development for the TL1 interface for the 15600 multi-service transport platform.
245
246 - Assigned priorities for TL1-related bugs on the 15600 platform to a team of 7 engineers located in California, Texas, Italy, and India. Remove roadblocks associated with fixing the problems. Adjusted workloads to keep engineers from becoming swamped or burned out. Participated in most code reviews related to the 15600’s TL1 interface.
247
248 - Removed 100K SLOC by aligning divergent code bases between the 15454 and 15600 platforms. The common code base freed up engineers who had previously been dedicated to either the 15454 or 15600. Fixing a bug or extending one platform also ended up being reflected on the other platform as well.
249
250 - Worked closely with other Cisco sites in Texas, North Carolina, and California, as well as offshore developers in India, and Italy.
251
252 ________________________________________________
253 Software Engineer(15327, 15454, 15600 platforms)
254 ________________________________________________
255
256 Provided full life cycle support across a number of Cisco’s multi-service transport platforms
257
258 - Wrote and maintained an extensive TL1 regression test suite in Expect. The test suite originally was meant to provide early testing for OSMINE deliverables. The tests were so successful, they began being used as a stability metric after branch syncs or merges. Before the tests were available, it might be weeks before a sync error was discovered. After the tests were implemented, sync errors were noticed within a day.
259
260 - Implemented Telcordia’s COPY-RFILE feature. This was the first time the feature was developed by a vendor. Worked closely with Telcordia engineers to work out the kinks in their specification.
261
262 - Resolved 800+ defects over 5 years, making me on of the top 5 contributors on the team. Wrote 700+ defect reports over 5 years despite not being a QA tester. Posted more defects than most of the dedicated testers.
263
264 - Participated in multiple OSMINE certification cycles. The OSMINE testing cycle forced code delivery to Telcordia months before the software went through formal QA. This test suite guaranteed high quality software was delivered despite the lack of QA. OSMINE certification cost ~6M, so an unsuccessful certification effort would have been extremely expensive.
265
266 - Had to carry a pager once or twice a year on a rotating basis in case any serious problems happened in the field that the regular support engineers couldn't resolve.
267
268 ----
269
270 ----
271 CACI
272 ----
273 | **Fairfax, Virginia**
274 | **March 1998 – November 2000**
275
276 ....................................
277 Senior Systems Analyst / Task Leader
278 ....................................
279
280 _________________________
281 Web Invoice System (WinS)
282 _________________________
283
284 Developed Oracle stored procedures for digital signature application
285
286 - Migrated embedded SQL in a Java servlets application to use stored procedures, allowing the database developers to focus on the SQL code, and the Java developers to focus on the servlet code.
287
288 - Developed regression test plan for stored procedures.
289
290 ___________
291 DIFMS/NIMMS
292 ___________
293
294 Developed the project's C++ framework, and provided custom tools to support various aspects of the life cycle on a COBOL reengineering project
295
296 - Developed framework for server side batches in C++
297
298 - Implemented an engine for translating Rational Rose class diagrams into Oracle DDL scripts
299
300 - Implemented a Microsoft Word template for capturing business rules which were then ported to Rational Rose
301
302 - Implemented a database monitoring tool in Perl to ensure various design decisions were being maintained in the database schema
303
304 - Implemented a regression test system for the batches which was incorporated into the nightly builds.
305
306 ----
307
308 ----------------------
309 RS Information Systems
310 ----------------------
311 | **McLean Virginia**
312 | **June 1995 – February 1998**
313
314 ....................................
315 Senior Systems Analyst / Task Leader
316 ....................................
317
318 ____________________________________________________
319 Midwest Electronic One-Stop Shopping Service (MEOSS)
320 ____________________________________________________
321
322 Developed a credentialing and permitting system used by the trucking industry and state motor vehicle departments in seven Midwestern states.
323
324 - Designed and implemented the mapping between the database schema and the EDI documents, including the design of the database schema
325
326 - Developed the installation process for state and industry versions of the software.
327
328 - Lead a team of four PowerBuilder developers
329
330 __________________________________________________
331 Virginia/Maryland CVISN Pilot Credentialing System
332 __________________________________________________
333
334 Ported the MEOSS Credentialing System to the states of Virginia and Maryland
335
336 - Added client/server capabilities to the state portion of the MEOSS credentialing system
337
338 - Developed a direct-dial communications subsystem to bypass VAN charges.
339
340 - Developed a Perl script to diagnose common problems in ODBC.INI files.
341
342 ____________________________________________________
343 IFTA Clearinghouse / Quarterly Tax Submission System
344 ____________________________________________________
345
346 Developed a system for gathering fuel tax data from states.
347
348 - Implemented the mapping between the database schema and the ANSI X12 813 EDI file format.
349
350 - Developed the system for importing EDI files into a DB2 database.
351
352 - Lead a team of 2 C++ developers
353
354 - Developed the VAN communication system for sending and receiving EDI files
355
356 ______________________________________________
357 Hazardous Material Registration System (HARPS)
358 ______________________________________________
359
360 Developed a system allowing states to share hazardous material registration information.
361
362 - Gathered system requirements and wrote the technical specification document.
363
364 - Mapped database schema to the applicable ANSI X12 EDI formats.
365
366 ----
367
368 ==========
369 Education:
370 ==========
371
372 ----------------------------------------------------------------------
373 George Mason University, Information Technology and Engineering School
374 ----------------------------------------------------------------------
375 Masters of Science / Computer Science / May 2006
376
377 ------------------------------------------
378 Cornell University, College of Engineering
379 ------------------------------------------
380 Bachelor of Science / Computer Science / May 1990
381
382
383 =====================
384 Open Source Projects:
385 =====================
386
387 Certmaster (http://github.com/jude/certmaster) (2015-Present)
388 - Forked the Fedora Certmaster project adding support for multiple CAs and hash functions other than sha1
389
390 Haskell Augeas FFI Bindings (http://trac.haskell.org/augeas/ (2009-Present)
391
392 - Provided foreign function interface bindings so Haskell users could easily use the Augeas library
393
394 python-module-for puppet (http://github.com/jude/python-module-for-puppet/tree/master) 2009
395
396 - Extended Python packaging support in Puppet to include installation of specific package versions
397
398
399 Pwan OCL Library: (http://sourceforge.net/projects/pwan) (1999-2000)
400
401 - Developed a YACC parser for the UML Object Constraint Language version 1.3
402
403 Various other patches on github (https://github.com/jude?tab=activity) (2009-Present)
404
405