Philip To Email & Phone Number

Burlington, Massachusetts, United States

Affirmed Networks joined Microsoft’s Azure For Operators Mobile Packet Core group in November 2020. This group focuses on creating 5G core router products called Unity Cloud, designed to run on Azure Operator Nexus — a carrier-grade hybrid cloud platform. Notable achievements include:1. Increased Capacity: Unity Cloud’s capacity grew significantly from serving 300k users to over 1 million users, all while maintaining the same hardware footprint (576 vCPUs).2. Enhanced Throughput: The throughput capacity also improved significantly, going from 65 Gbps to 120 Gbps using the same hardware (360 vCPUs).3. Workload and Capacity Planning: Designed methodologies to estimate and predict workload and built sizing model for capacity planning for our tier-1 customers including AT&T and Vodafone. The sizing model was widely used by our sales team for the RFP process as well.4. AI & ML Integration: Led a team of software developers in integrating AI and ML capabilities into our in-house Continuous Testing framework. These innovations resulted in several patents filed with the USPTO. Examples include: • Auto-triage of ICM and ADO tickets using machine learning and classification. • Duplicate ticket detection leveraging Azure AI Search. • Jaeger trace for root cause analysis using a 3GPP-trained GPT model. • Core dump analysis using GPT. • Anomaly detection based on field PM stats.5. Continuous Improvement on data engineering methodology to increase efficiency in field data analysis and feedback to software development for further optimization.6. Performance Analysis Tools: Developed various performance analysis data products using tools like Power BI, Excel, Python Jupyter Notebook, ADX, and Kusto.

Acton, Ma

I joined Affirmed Networks during its early startup phase to establish a performance engineering team. Affirmed Networks specializes in creating 4G/LTE core router software that runs on NFVi. Some key achievements during my tenure include:1. I assembled a performance engineering team from scratch. We developed a blueprint for performance evaluation and scalability methodology, and I personally trained performance engineers in performance testing, data collection, KPI analysis, and capacity projection. The team size varied between 3 and 6 members at different times. 2. Championing Best-in-Class Performance: I consistently drove our engineering organization to achieve top-tier performance. As a result, Affirmed Networks’ 4G/LTE core router software (running on NFVi) has been widely adopted by tier-1 customers globally, including AT&T, 3UK, Vodafone, and Etisalat. Notably, our largest tier-1 deployment in a North American carrier currently supports over 66 million users and 125 million sessions.3. Product Capacity and Performance Expertise: I served as the primary point of contact for internal stakeholders (Sales & Marketing, Customer Support, Software Sustaining, and QA) and external customers regarding product capacity and performance. My collaboration with software development spanned the entire product lifecycle—from architectural design and development to capacity planning, deployment, field operations, and performance optimization.4. Performance Tools and Data Pipeline: I designed and implemented performance tools and data pipelines for various teams, including: • Call Model Construction: Predicting workload patterns. • Sizing Model: Projecting capacity requirements. • Field Data Analysis: Leveraging Kusto and ADX to identify potential field issues. • Power BI Dashboards: Providing insightful visualizations.

Westborough, Ma

Developed software in Java and Hadoop to perform big data analysis.

• Created and built up the Capacity and Performance team with members of various skill sets, and perform day-to-day management of the team.• Defined processes and workflows, and integrated them into existing software development process and schedule. This ensured enough focus was placed on performance in each stage of product development.• Defined metrics to measure effectiveness of various processes to allow continuous improvements.• Managed communications with OEM partner and end customers. Managed and resolved crisis situations.• Provided initiatives and ideas to automate test setup, execution, and result analysis to increase efficiency.• Designed and implemented various tools to analyze customer data and logs to resolve field issues. They are mostly written in TCL, and Excel VBA.• Developed a Capacity Based Licensing mechanism to license capacity on the RNC. The Capacity Based Licensing feature allows the operator to incrementally provision capacity without forklift upgrade.

• Developed software in C++ to support packet forwarding, buffering and scheduling.• Developed buffering mechanism for Radio Link Protocol (RLP) to increase the per-user throughput and optimize resource usage.• Designed and implemented Overload Control Mechanisms in the Radio Node Controller (RNC).

Worked in multiple areas within the Multi-service Switching Division (formerly Ascend Comm. / Cascade Comm.). They include system software development, traffic management architecture design and modeling, performance optimization, and traffic management components development.

Phd, Information Engineering

Activities and Societies: Thesis: "Non-blocking and Distributed Routing Principles in ATM Packet Switching Networks," supervised by Prof..

Master Of Philosophy, Information Engineering

Activities and Societies: Thesis: "Modular Expansion and Reconfiguration of ShuffleNets in Multi-Star Implementations", supervised.

Bachelor Of Engineering, Information Engineering

Activities and Societies: Graduated with First Class Honor.