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# Cleo Spiers

**Headline:** Software Engineer
**Profession:** Software Development Engineer
**Location:** Seattle, Washington, United States

## About

Cleo Spiers is a Software Engineer and current Software Development Engineer at Amazon, where she works on product\-focused applications of large language models\. She brings experience across full\-stack development, machine learning, ML engineering, and data orchestration engineering, with a focus on using rigorous data to validate product decisions\. At Amazon, Cleo built the End\-to\-End Prompt Evaluation Platform and has worked to align stakeholders while managing scarce compute resources\. Her approach balances rapid feedback cycles with the quality requirements of mission\-critical products, and she is interested in the challenges of integrating products with B2B customers\. Cleo also has founding\-engineer experience at an early\-stage startup, reflecting experience beyond initial product ideation and into sustained ownership\. Earlier, she worked as a Software Engineer at Oklahoma Blood Institute\. Cleo earned a Bachelor of Science in Computer Science from the University of Oklahoma and has a professional foundation in software engineering and data analysis\.

## Highlights

- Current Software Development Engineer at Amazon\.
- Built Amazon’s End\-to\-End Prompt Evaluation Platform\.
- Transitioned to product\-focused work with large language models at Amazon\.
- Gained ML engineering experience at Amazon\.
- Gained data orchestration engineering experience at Amazon\.
- Used rigorous data to validate product decisions\.
- Won alignment and managed scarce compute resources\.
- Balanced rapid feedback cycles with mission\-critical quality requirements\.
- Has founding\-engineer experience at an early\-stage startup\.
- Has experience taking ownership beyond zero\-to\-one ideas\.
- Interested in B2B customer\-integration challenges\.
- Previously worked as a Software Engineer at Oklahoma Blood Institute\.
- Earned a Bachelor of Science in Computer Science from the University of Oklahoma\.
- Has experience in full\-stack development, machine learning, software engineering, and data analysis\.

## Experience

- **Software Development Engineer at Amazon** (2022\-06\-01–present)
- **Software Engineer at Oklahoma Blood Institute** (2021\-05\-01–2022\-05\-01)

## Education

- Bachelor of Science \- BS, Computer Science — University of Oklahoma (2018\-08\-01–2022\-05\-01)

## FAQ

### What does Cleo do?

Cleo is a Software Engineer and currently works as a Software Development Engineer at Amazon\. Her work there includes product\-focused applications of large language models, ML engineering, and data orchestration engineering\.

### What are Cleo’s core strengths?

Cleo’s strengths include full\-stack development, machine learning, ML engineering, data orchestration, software engineering, and data analysis\. She also uses rigorous data to validate product decisions\.

### What has Cleo accomplished at Amazon?

At Amazon, Cleo has transitioned into product\-focused work with large language models\. She has ML engineering and data orchestration engineering experience there, built Amazon’s End\-to\-End Prompt Evaluation Platform, and has worked on stakeholder alignment and scarce compute\-resource management\.

### What notable platform did Cleo build?

Cleo built Amazon’s End\-to\-End Prompt Evaluation Platform\.

### How does Cleo approach product decisions and quality?

Cleo uses rigorous data to validate product decisions, balancing fast feedback with the quality demands of mission\-critical work\.

### What experience does Cleo have with alignment and compute resources?

Cleo has experience winning alignment and managing scarce compute resources in her work at Amazon\.

### Does Cleo have startup experience?

Cleo has founding\-engineer experience at an early\-stage startup\. That experience includes seeking sustained ownership beyond zero\-to\-one ideas\.

### What customer\-integration work interests Cleo?

Cleo is interested in the challenges of B2B customer integration\.

### Where did Cleo work before Amazon?

Before Amazon, Cleo worked as a Software Engineer at Oklahoma Blood Institute\.

### What is Cleo’s educational background?

Cleo earned a Bachelor of Science in Computer Science from the University of Oklahoma\.

### What technical experience does Cleo have?

Cleo has experience with full\-stack development and machine learning, alongside her software engineering and data analysis background\.

## Links

- LinkedIn: https://www\.linkedin\.com/in/ACoAACbxbbwBJloeFlUY\_mphIrEqfvXv5SsXdJo

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