Robert Grathwohl

3913 Winter Park Ln · Addison, TX 75001 · (770) 298-1918 · robertgrathwohl@gmail.com

Hello and welcome to my portfolio! I'm Robert Grathwohl, a Data Analyst and Software Engineer with 8 years of experience in performance metrics and telemetry. From high frequency trading to data storage devices, my focus has been on working directly with developers and product teams to improve their product performance. My passion lies in translating my clients performance bottlenecks into actionable items using visualizations and analysis.

Personal Projects

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NHL Player Stats

Plotly/Dash Interactive Visualization

A scatter plot that allows users to select advanced analytics to chart for their favorite NHL Players from the 23-24 season

Will update using the NHL public API to allow live up to date stats for the 24-25 season

Uses Plotly/Dash framework to populate custom visualizations

Launch App
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USA Hockey Registration by State

Historical Data on the Growth of Hockey

A dashboard of historical USAHockey Regiestration by State, highlighting the growth of hockey by year in difference states

Uses Vega-Altair and Streamlit for visualtiozations.

Launch App
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Tableau Visualizations

Variety of Visualizations created in Tableau

Launch App
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NHL Stats Skill

Amazon Alexa Skill

An Amazon Alexa skill that lets you quickly ask your Echo about the current stats of the NHL. Currently looking for a new live/up to date stats API.

- Go to repo
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Crypto Crunch

Cryptocurrency Arbitrage Trading Bot

An automatic arbitrage trading bot using tensor to predict volitily in markets and reallocating funds to exchanges where arbitage opportunities will likely appear.

- Go to repo

Experience

Member of Technical Staff

NetApp

Functioned as Performance Analyst, responsible for coordinating with product feature teams to investigate opportunities for increasing IO and reducing latency for All Flash Fabric Attached Storage devices (AFFs).
• Developed and executed comprehensive measurement and performance testing in both POC and production environments.
• Provided performance analysis and investigation for improving storage efficiency efforts, including data tiering, deduplication, and data compression strategies.

June 2022 - August 2024

Analytics Engineering Lead

Citi

Contributed as Engineering Team Lead focused on providing automated data analytic solutions for sensitive high frequency trading environments measuring latency in nanoseconds.
• Oversaw certification, configuration, and deployment of analytic applications and dedicated hardware for production low latency trading applications.
• Acted as ambassador for emerging technologies in low latency analytics space and facilitated network hardware benchmarking for POC opportunities driven by low latency business clients.
• Served as Team Lead on multiple first place teams for Citi’s internal hackathons, as well as for recruitment, representing Citi at university hosted hackathons.

July 2017 - May 2022

Software Engineer

Citi

Deployed and managed a universal artifact repository to hold any internal application builds for streamlined access, deployment, and release versions to 30K+ developers.
• Configured and deployed ELK Stack, Splunk, and AppDynamics instances to monitor and deliver insights on application performance.

June 2016 - July 2017

Software Engineering Intern

Emerson Electric

• Developed automation software responsible for managing nightly builds of multiple development branches and confirming that branch dependencies were compatible.
• Responsible for creating and managing virtual machine environments using Hyper-V hosting batch application build software.

May 2015 - August 2015

Software Engineering Intern

Phillips 66

• Responsible for the analysis of new production applications and the development of disaster recovery plans.

May 2014 - August 2014

Education

Texas A&M University

Bachelor of Science
Computer Engineering - Minor in Mathmatics

• Focus on Digital Signal Processing, including leading team efforts on developing Wireless Audio Filtration systems to be applied to Emergency Unmanned Aerial Vehicles (UAVs) for voice communication.
• Captain of TAMU Ice Hockey Team

2011 -2015

Skills

Cloud Platforms

AWS (EC2, Lambda, DynamoDB) | GCP (Looker, BigQuery, Dataplex, DataProc) | Snowflake

Data Visualization

Corvil | Intel VTune | Plotly | Tableau | Splunk | Streamlit | Vega-Altair

Programming

DBT | Python | Q (KDB+) | R | SQL | REST APIs

Web/App Deployment

Apache Kafka | Apache Tomcat | Flask | Nginx

Interests

One of my favorite hobbies is playing Ice Hockey. I've played since I was 8 years old and I'm still on the ice 3 times a week. A lot of my personal projects revolve around hockey, particularly diving into advance analytics of professional hockey.

Additionally I'm a big movie buff and have no problem seeing multiple movies a week at the theater whenever I get a chance.

Certifications

  • Amazon - AWS Certified Cloud Practitioner (CCP)
  • Google - Google Advanced Data Analytics Certificate
  • Google - Google Cloud Data Analaytics Professional Certificate
  • Docker - Docker Foundations Professional Certificate
  • Scrum Alliance - Certified Scrum Master (CSM)
  • Corvil - Corvil Certified Administrator (CCA)