Continued development of the cloud native AMF/MME.• Developed the data plane aspects of the cloud native AGF utilizing FD.io’s VPP data plane.• Developed the VPP based SCTP/UDP load balancer front end for the cloud native AMF/MME. Implemented in such a way that it is now also utilized for the cloud native SMF.• Wrote the ARM template to create the Azure Load Balancer to link the external network to the Azure AMF/MME load balancer.

Continued the development and group head responsibilities of the vMME/SGSN.• Lead developer on the virtual Slice Selection Function (vSSF).• Implemented virtually the entire network stack of the vSSF from kernel IP tables custom modules to distributed packet processing in user space. Focused on CPU improvement throughout the entire development process. Reduced DNS resolution CPU utilization greatly. Implemented packet tracing on the vSSF.• Worked on the development of the cloud… Show more Continued the development and group head responsibilities of the vMME/SGSN.• Lead developer on the virtual Slice Selection Function (vSSF).• Implemented virtually the entire network stack of the vSSF from kernel IP tables custom modules to distributed packet processing in user space. Focused on CPU improvement throughout the entire development process. Reduced DNS resolution CPU utilization greatly. Implemented packet tracing on the vSSF.• Worked on the development of the cloud native AMF/MME.• Developed the DNS aspects of the cloud native MME. Discarded the old vMME DNS stack, Bind 9.11.16, and redesigned the stack based on completely redesigned Bind 9.16.0. Patched the bind source code to provide the same functionality of the heavily patched vMME DNS stack to maintain software continuity with previous releases. Show less

Lead developer on porting hardware specific Nortel SGSN to virtual MME/SGSN.• Lead developer on implementing Life Cycle Manager for the vMME/SGSN.• Coded repository group head responsibilities for vast amount of the vMME/SGSN code base.• Implemented design responsible for achieving SGSN GTP data throughput targets.• Spent considerable amount of time improving performance and finding performance bottlenecks in the vMME/SGSN.

Primary support roles involve solving problems reported from the customer by reproducing the problem, identifying the offending software bugs, writing, testing, delivering, propagating, and merging the fix into the main release.• Consistently displayed excellent troubleshooting instincts for pinpointing bugs.• Developed broad understanding of a complex system while at the same time being able to drill-down to code-level in any specific area.• Mentored support staff and regularly… Show more Primary support roles involve solving problems reported from the customer by reproducing the problem, identifying the offending software bugs, writing, testing, delivering, propagating, and merging the fix into the main release.• Consistently displayed excellent troubleshooting instincts for pinpointing bugs.• Developed broad understanding of a complex system while at the same time being able to drill-down to code-level in any specific area.• Mentored support staff and regularly conducted training sessions.• Provided software support on the Nortel wireless CDMA PDSN/FA, HA, and GPRS/UMTS GGSN.• Quickly provided mission critical software fixes to tier 1 customers such as Verizon, Sprint, T-Mobile, and Vodaphone and provided a key role in meeting timelines on customer issues.• Experienced in meeting the demanding support requirements of major service providers, which involved wearing a 24/7 on-call pager.• Consistently display ownership of the support labs in addition to primary responsibilities. This involved configuring, maintaining, and upgrading the Nortel CDMA OA&M platform along with the Nortel PDSN/FA, HA, and GGSN.• Developed training materials on techniques for patching technically difficult software issues and for performing post-mortem crash analysis.• Developed patching certification exam that patch writers must take prior to developing any patches.• Developed and maintained the post release software manager for the Nortel CDMA OA&M platform. Completely changed the program from using multiple Solaris package instances in Perl to Solaris direct instance patches in C.• Developed patching operations on Nortel’s LTE EPC solutions. Show less