Fei Rao SDE

+1 (778) 867 3886raof01@gmail.comHire me on Toptal

Summary

Senior Software Engineer and technical lead with extensive experience architecting high-throughput, distributed systems and cloud platforms across AWS and Azure. Specialized in event-driven streaming architectures (Kafka), high-concurrency microservices, and edge-to-cloud data pipelines scaling to 10M+ connected devices. Proven track record of driving cross-functional roadmaps, resolving complex technical trade-offs, and delivering Tier-1 services with high availability. Named inventor on a pending patent.

Core Skills

Programming Languages
Java, Python, C/C++, SQL, TypeScript
Distributed Systems & Streaming
Apache Kafka, Apache Storm, OpenSearch, Redis, Event-Driven Architecture
Databases & Storage
MongoDB, DynamoDB, SQL Server, MySQL
Frameworks & Cloud
Spring Boot, NGINX, ASP.NET, AWS (Serverless / CloudWatch), Azure
Domain Expertise
Distributed Architecture, High-Availability (HA) Systems, Microservices, Edge-to-Cloud Telemetry, PTP (IEEE 1588)

Work Experiences

Arista Networks

Senior Software EngineerMar 2024 – Now
  • Standardized PTP (Precision Time Protocol) support across multiple platforms, driving cross-team alignment and resolving critical cross-system integration risks.
  • Engineered PTP subsystems to enhance time synchronization accuracy by 100x (reducing average OFM from 20 µs to 200ns).

Samsung Electronics

Senior Software EngineerMar 2023 – Mar 2024
  • Led cross-functional technical alignment between edge platform and cloud infrastructure teams, defining system integration specs and de-risking fleet-wide rollout for 10M+ connected devices.
  • Engineered a high-throughput edge-to-cloud telemetry ingestion pipeline using Apache Kafka and Kafka Connect, processing real-time status heartbeats and diagnostic event streams at 10M+ device scale.
  • Architected a high-concurrency gateway and identity management service (NGINX, Spring Boot, MongoDB), delivering secure device attestation, automated provisioning, and low-latency state queries.

Amazon Canada Fulfillment Services ULC

Software Development Engineer IIFeb 2021 – Mar 2023
  • Architected and automated an event-driven Profit Management platform utilizing AWS serverless technologies (Lambda, Step Functions) and React, streamlining complex approval workflows and generating $10M+ in Free Cash Flow.
  • Owned operational excellence for Tier-1 critical cloud services, leading high-severity incident resolution, driving post-mortem RCAs, and implementing automated guardrails to uphold 99.99% system availability.
  • Engineered scalable analytics interfaces and asynchronous data-fetching layers for the AWS Billing Console, enabling low-latency rendering and multi-dimensional aggregation of massive cloud spending datasets.

Dell Technologies

Senior Principal Software EngineerFeb 2019 – Jan 2021
  • Architected and scaled backend services for deals.dell.com, supporting 1,000+ concurrent timed flash-sales and sustaining massive traffic surges across global regions during peak shopping events.
  • Led an engineering team to design and deploy distributed B2B integration gateways (ASP.NET, SQL Server), enabling high-throughput, asynchronous order synchronization across enterprise partner ecosystems.
  • Engineered an automated sales analytics pipeline using Python and SQL Server, orchestrating end-to-end data ingestion and aggregation to drive a 16% increase in business unit profitability.
  • Designed an event-driven purchase order processing pipeline with automated validation and state reconciliation, eliminating transactional bottlenecks and saving 4 sales FTEs annually.

Schlumberger Technologies

Senior Software EngineerJan 2013 – Jan 2019
  • Accelerated large-scale NMR (Nuclear Magnetic Resonance) inference pipelines using CUDA, achieving a 2,500x compute speedup and unlocking an estimated $2M in annual operational value.
  • Architected a distributed data acquisition framework in C++, reliably streaming high-frequency sensor telemetry from remote downhole drilling tools into edge and cloud platforms.
  • Engineered scalable RESTful web services and data access platforms (ASP.NET, SQL Server), centralizing mission-critical drilling telemetry across multi-region engineering teams.
  • Built a distributed real-time stream processing platform using Apache Storm and Grafana, orchestrating complex event topologies to process live sensor streams with sub-second latency.

Certificates

Education

Beihang University

Master of Software Engineering

Beijing, China
2010 – 2013