Richard Singer Email & Phone Number

Aurora, Illinois, United States

Smoke and CO alarm development

Naperville, Illinois

Supported highly reliable (geographic / local redundancy and defensive design) database in IP Multimedia System (IMS) network used by 4G Long-Term Evolution (LTE) to store information for millions of subscribers. • Functioned as key team member in presentation of numerous demos to high-value client (Verizon Wireless), establishing close and successful client partnership and receiving recognition from client for best SDM demos. o Surpassed 99.999% Quality of Service (QoS) requirement and significantly improved SDM capacity, reducing SDM cost and preventing system downtime.• Executed tests with different traffic loads (XML scripts, Jmeter), determining capacity / provisioning throughput, delays / elapsed times, reliability, and long-term stability to validate improved SDM quality.o Created tests with various types of overloads. o Conducted tests that involved component failure and SDM recovery.• Handled issues associated with test results, writing trouble ticket and following up until successful resolution.• Automated NLT tests and demos, including result analysis for determining whether test passed, substantially improving testing efficiency and reproducibility.o Completed automation by target date for latest SDM release with 45 new NLT robustness tests that involved 12 new features.• Delivered demo test results in real time, decreasing analysis time 10x by writing Excel VBA code that automated analysis of massive amount data. o Ensured QoS and other requirements were met.o Looked for and denoted outliers by checking for data 3- and 5-sigma deviations from average.o Monitored for overloads.o Generated pivot tables / charts.o Self-taught VBA from books and online searches.• Reviewed CPRS requirements for cloud-based virtual machine (VM) version of SDM, helping ensure proper test execution.

Naperville, Illinois

Supported highly reliable feature server element in IMS network.• Executed call and provisioning CPRS tests on number of releases, including VM / hypervisor version, proving in capacity requirements and successful recovery from different failover scenarios, and improving CTS quality.• Used tools, such as top and iostat, for collecting and analyzing test results.

Naperville, Illinois

Established CPRS requirements at IMS network solution level.• Met overall IMS solution capacity by determining individual IMS network elements capacity requirements.• Verified capacity requirements were achieved by designing lab configurations for testing capacity requirements and helping NLT testers analyze test data.• Detailed understanding of SIP and diameter message flows between IMS elements as CSCFs, TAS, HSS, SCCF (charging)

Naperville, Illinois

Supported AT&T / Lucent state-of-the-art local (class-5) circuit switched digital electronic switching system in North American and international wireline / wireless markets. • Established CPRS architecture / requirements with aid of modeling / simulation, using information to support and win customer bids.• Designed lab configurations and performed tests, meeting and surpassing expectations by verifying CPRS requirements, analyzing resulting data, resolving issues, and devising improvements early on in process.o Wrote and executed 2K+ tests.• Handled emergency and long-term CPRS field issues, resolving 200+ customer issues by analyzing customer needs and determining capacity through tool / spreadsheet development. • Worked on numerous 5ESS switch projects, such as processor / architecture upgrades and 150+ features, determining feature’s impact on CPRS and verifying 5ESS Switch new feature support. Projects included:o High-capacity tandem, Integrated Services Digital Network (ISDN), Personal Handy-phone System (PHS), Operator Service Position System (OSPS), Communications Assistance for Law Enforcement Act (CALEA), Session Initiation Protocol (SIP) interface, Local Number Portability (LNP), and Code Division Multiple Access (CDMA). • Initiated, devised, and supported procedures for estimating, implementing, and modifying software resource values, allowing customer to easily increase resource limits while saving additional hardware cost.Additional Experience: Argonne National Laboratory (ANL), Lemont, ILPostdoctoral Scholar, Assistant Physicist, and Associate Physicist (tenured)

Quality Assurance Training, Quality Assurance - Completed Certification For Sql And Data Analytics, Selenium Certification Next

Completed Oracle PL/SQL course and passed the Oracle SQL certification exam 1Z0-071 Completed Data Analytics course - ER/Studio, data.

Bachelor Of Science (Bs / Sb), Physics

Doctor Of Philosophy (Phd), Physics