Lefan's Portfolio

Favorite Projects

Selected work in FPGA acceleration, generative AI, and systems engineering, alongside some of my favorite personal projects.

Jan. 2025 - Apr. 2025 · Waterloo, ON

LLM Inference Accelerator

Implemented IBERT inference on a PYNQ FPGA with pipelined SystemVerilog compute units, including systolic arrays, matrix multipliers, softmax, and layer normalization.

SystemVerilog · FPGA · Vivado · RTL Design

View project →View all projects

SDXL LoRA Adapter

React image generator with a custom SDXL LoRA adapter fine-tuned on AWS G4DN and deployed through Hugging Face Serverless Inference

SDXL LoRA Adapter
Experience Tree

Work experience grouped by the kinds of systems I like building.

AI automation, robotics, platform engineering, and internal tooling work across internships where I shipped production systems and made complex workflows faster for other teams.

Overview

Career Journey

A focused timeline across 5 engineering roles spanning robotics, platform reliability, and developer productivity.

2023 - 20263 branches5 experiences

Branch

Robotics and Automation

2025 - 2026

Applied ML, deployment, and cross-team enablement for physical systems

RoboticsMLAWS

Amazon Robotics

Software Developer, AR Human Workcell Interface Team

Toronto, ON

Sept. 2025 - Apr. 2026
Planning PipelinesCDKWorkcells
  • Designed, developed, and deployed ML planning pipelines for robotic movement drive units across 1,200+ fulfillment centers worldwide.
  • Led a cross-team effort to establish a robotics lab in Toronto, using a custom VPN routed through corporate infrastructure and robotic drive simulation clusters to enable capabilities previously exclusive to Amazon Robotics HQ, saving approximately $1 million in deployment costs.
  • Deployed a custom CDK-managed application for robotic station software to connect to AWS from the Unfabric office network.

Branch

Platform and Security

2023 - 2025

Reliability, compliance, and operational tooling at service scale

InfrastructureMonitoringCompliance

Adentro

DevOps Engineer, Security and DevOps Team

San Francisco, California

May 2025 - Aug. 2025
ECSObservabilitySOC 2
  • Developed and maintained resilient monitoring systems for large-scale ECS clusters supporting 400+ services.
  • Led system design improvements adopted cluster-wide, speeding up configuration change workflows by 80%.
  • Contributed targeted infrastructure changes that supported SOC 2 compliance efforts across multiple services.

TELUS

Software Developer, RCOE Team

Toronto, ON

May 2023 - Aug. 2023
Spring BootDockerGCP Pub/Sub
  • Contributed to ACMP, an auto-call management service for automatic dispatching of field technicians.
  • Built, tested, and deployed production images of the ACMP service to customer-facing Docker swarms.
  • Adopted a GCP Pub/Sub model to facilitate secure communication and enable internal database access through Google services.
  • Developed a Java Spring Boot chat service with a serverless architecture, reducing compute cost by 20x.

Branch

Developer Productivity

2024 - 2026

Internal tooling, diagnostics, and faster workflows for engineering teams

Internal ToolsAIAutomation

Capital One

Software Developer, The 6ix Team

Toronto, ON

May 2026 - Aug. 2026
AI AutomationFigma MCPAstro
  • Developed an AI-automated Figma-to-Astro framework for product pages, reducing implementation time from two weeks to one day.
  • Integrated Figma MCP to extract layout, spacing, and design-token context for production workflows, minimizing manual intervention.

CIENA Corporation

Software Developer, Technological Innovation Team

Ottawa, ON

Jan. 2024 - Apr. 2024
JupyterLabSplunkDiagnostics
  • Developed major releases of a data aggregator tool used by hundreds of engineers within CIENA, saving hundreds of engineering hours.
  • Built Splunk search queries that identified common hardware device errors 80% faster.
  • Used JupyterLab to automate complex log archive workflows, increasing efficiency by 30%.

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Submission Calendar

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