# Colin Waldman

> Staff Software Engineer, Machine Learning at Block

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/colinwaldman

Experienced software engineer and ML modeler with expertise in solving business problems with ML, developing scalable machine learning applications and simplifying ML workflows.  Specialization in building out ML tooling, automation, LLMs, cloud infra and conventional ML.

## Work Experience
### Staff Software Engineer, Machine Learning @ Block
Jan 2022 – Present | San Francisco Bay Area
Building tools to detect and prevent financial crimes, money laundering and fraud. CashApp & Square

### Staff Software Engineer, Machine Learning @ One Medical
Jan 2019 – Jan 2022
Acquired by Amazon

ML tech lead. Part-time EM. Focus on NLP, deep learning, cloud infra:

- Rolling out clinical NLP services to improve patient and provider experiences
- Advancing the adoption of service-oriented architecture throughout the engineering organization
- Developed One Medical's internal ML toolbox for rapid model development and productionization, serving as the backbone for ~20 ML services
- Developed and maintained One Medical's internal data annotation platform

### Machine Learning Engineer @ Flowcast
Jan 2018 – Jan 2019 | San Francisco Bay Area
Seed-stage, employee #7

Building out ML tooling and developing trade finance risk models

### Founder @ signalMinr
Jan 2016 – Jan 2019
Building out ML-powered trading systems for cryptocurrency markets.

### Data Scientist @ Kabbage, Inc
Jan 2015 – Jan 2017
Acquired by American Express

Building automated underwriting and financial forecasting systems with ML

### Data Scientist @ Stride Health
Jan 2015 – Jan 2015
Building recommendation engines and predicting customer healthcare expenditures with ML

### Powertrain Engineer / Machine Learning Engineer @ Bosch Research and Technology Center
Jan 2014 – Jan 2015 | Detroit, MI and Palo Alto, CA
Development and optimization of diesel powertrain control strategies, development of a suite of pattern-recognition algorithms to aid in powertrain diagnostics.

### Graduate Research Associate @ OSU Center for Automotive Research
Jan 2013 – Jan 2014 | The Ohio State University
Development and online deployment of an automotive charging system controller for optimization of fuel economy:

- System modeling and validation via empirical and physics-based methods;
- Rapid controller prototyping, deployment and tuning;
- Interfacing of LIN, CAN, Labview and ETAS hardware/software;
- DOE for battery fatigue/aging analyses

### Research & Development Engineer, Internship @ Diamond Power
Jan 2012 – Jan 2012 | Lancaster, Ohio
- FEA design and analysis;
- Design of high flow hydraulic subsystems;
- Design of intra-pipeline turbulence reduction components;
- High-capacity compressor maintenance/repair;
- 3D modeling of low-velocity, multi-phase flows.

### Research Assistant, Soil Science @ Carbon Management and Sequestration Center, The Ohio State University
Jan 2009 – Jan 2010
-Soil gas sample collection and analysis
-Soil electro-conductivity and pH analysis
-Particle distribution and density analysis


## Education
### Master of Science - MS in Mechanical Engineering
The Ohio State University


## Contact & Social
- LinkedIn: https://linkedin.com/in/colinwaldman

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Source: https://flows.cv/colinwaldman
JSON Resume: https://flows.cv/colinwaldman/resume.json
Last updated: 2026-04-12