// career

Experience

Dec 2024 - Present
Software Engineer
Viridia Solutions Inc. · Plano, TX
- Built distributed NestJS services on AWS ECS ingesting high-volume MQTT telemetry from connected devices across MySQL, MongoDB, Redis, SNS/SQS, and IoT Core.
- Built behavioral-efficiency Double Machine Learning models over a large telemetry dataset — five-fold cross-fitted XGBoost/LightGBM nuisance learners with cluster-robust validation — estimating operation-conditioned behavior effects and surfacing a significant recurring savings opportunity through fair-score rankings and what-if APIs.
- Built an internal agentic AI assistant (codename “Lydia”) for high-volume telemetry analytics with multi-turn tool calling, schema inspection, SQL generation and execution over ClickHouse, and chart/report generation.
- Architected the assistant's distributed agent platform — authored the system HLD/LLD and implementation-aligned component designs; MySQL control plane with compare-and-set lifecycle transitions, transactional outbox to Kafka/MSK, and Redis Streams for replayable delivery — and implemented the worker runtime with strict package boundaries and fail-closed authentication; verified end-to-end in staging.
- Defined and froze a v1 client contract and built ownership-validated Socket.IO streaming with cursor-based replay-to-live handoff and durable terminal snapshots.
- Deployed an LLM inference engine with vLLM and llama.cpp on an on-prem GPU server behind EC2, NGINX, and Route 53, replacing RunPod and delivering a meaningful reduction in serving cost.
- Implemented connected-hardware charging and health-monitoring services in Java/Spring with Terraform, Lambda, CloudWatch, and SNS, sharply reducing incident detection time.
May 2023 - Dec 2024
Junior Software Engineer
Viridia Solutions Inc. · Plano, TX
- Designed and deployed NestJS microservices on AWS ECS processing high-volume MQTT telemetry.
- Implemented scalable event-driven backends with IoT Core, SNS, SQS, Kafka, and Redis Pub/Sub for sub-second operator dashboard updates.
- Optimized high-traffic MySQL query paths with composite indexing and schema-level tuning, substantially reducing average query latency.
Aug 2021 - Mar 2022
Graduate Research Assistant
University of Nevada Las Vegas · Las Vegas, NV
- Conducted cybersecurity research in PLC network environments through simulated attack and packet analysis workflows.
- Developed secure IoT client-server architectures integrating encryption protocols with Kafka and MQTT messaging.
Jan 2019 - Jan 2021
Software Engineering Intern
Rainbow Robotics USA · Las Vegas, NV
- Built cross-platform mobile applications integrated with robotic ordering workflows.
- Implemented C++ backend monitoring logic for real-time robot safety status tracking and fault alerts.

Skills

Cloud & Distributed Systems

AWS (ECS, EC2, Lambda, S3, CloudWatch, IoT Core, SNS/SQS)
Kafka/MSK, MQTT, Redis Streams, and Redis Pub/Sub
MySQL, MongoDB, ClickHouse, DuckDB, and S3 archival
Transactional outbox and durable job control planes
High-throughput batch and streaming telemetry pipelines

Machine Learning & AI

PyTorch, Scikit-Learn, SHAP, and feature engineering
Causal inference and mixed-effects modeling
LangChain, LangGraph, RAG systems, and LLM agents
LLM inference with vLLM and llama.cpp
Behavioral and signal estimation, feature engineering, and transformers

Programming & Frameworks

Python, TypeScript, Java, C++, and SQL
NestJS and Node.js
Next.js and React
Spring Boot and Hibernate
Docker, Terraform, REST APIs, and CI/CD