Summary
Overview
Work History
Education
Skills
Citizenshipstatus
References
Certification
Websites
Timeline
SoftwareEngineer
John Barfield

John Barfield

Chicago,IL

Summary

I was once a biochemist trying to make cells behave, now I'm in tech making data do the same—with a little more success! Swapping pipettes for Python, I’ve realized that whether it’s molecules or machine learning models, the key is in the details (and sometimes in a good API). I believe that technology has the power to transform lives, and I’m excited to be part of that transformation as a Black professional in tech.

With expertise in Python, SQL, and a strong focus on AI engineering and machine learning (particularly in natural language processing and data science), I’ve developed a robust foundation in software development and data analysis. My hands-on experience, coupled with a research-driven mindset, positions me well for roles like machine learning scientist, AI engineer, or data scientist.

Beyond coding, I’m passionate about fitness, healthy eating, and exploring new places—whether it’s hiking a trail or immersing myself in a different culture while traveling. I’m always excited to continue learning, take on new challenges, and contribute to innovative projects that make an impact.

Let’s connect—I’d love to bring my technical skills and my energy to your next big idea.

Overview

2
2
years of professional experience

Work History

Artificial Intelligence Engineer Intern

Artheart.ai
New York , New York
07.2024 - Current

· Enhanced System Efficiency: Spearheaded improvements in the backend infrastructure using Django, leading to a 15% reduction in API response time and a 20% improvement in system uptime through optimization of database queries and efficient use of Redis for caching.
• Integrated Machine Learning Models: Played a key role in integrating state- of-the-art natural language processing (NLP) models into Artheart.ai's production environment, increasing model inference speed by 25% with optimized GPU utilization.
• Django Expertise: Developed and maintained core Django applications, including custom APIs for the company's image generation service, improving overall API throughput by 30%. Additionally, built a highly reliable asynchronous task queue using Django and Celery, reducing task processing time by 40%.
• AI-Powered Search Functionality: Collaborated on implementing AI-enhanced search features using Meilisearch, improving content retrieval accuracy and user engagement metrics by 18%.
• Cross-Functional Collaboration: Worked closely with machine learning engineers and DevOps teams to ensure smooth deployment of AI models, and improved the scalability of services by transitioning to a containerized infrastructure on Google Kubernetes Engine (GKE).
• Impact on Business KPIs: Contributed to a 12% increase in user engagement through the successful deployment of AI-powered features and optimized backend services.

Chemistry Teacher/IT Intern

University of Chicago Charter School
Chicago
08.2022 - 06.2024
  • Develop and implement comprehensive chemistry curriculum and lesson plans that meet state and national standards
  • Conduct engaging and interactive classroom instruction that fosters student interest and understanding in chemistry
  • Utilize a variety of teaching methods and resources to accommodate different learning styles and abilities
  • Provide timely and constructive feedback to students to support their academic growth and development
  • Foster a positive and inclusive classroom environment that encourages student participation and collaboration
  • Orchestrated the students scoring 80% better on their mastery connect exams chemistry (from year fall 2023 to spring 2024)
  • Coordinated device enrollment by implementing the school’s Mobile Device Management (MDM) system
  • Managed configuration and deployment of devices, including setting up Apple IDs, installing necessary apps and software, and configuring settings for optimal security and productivity
  • Facilitated user account creation, ensuring personalized experiences for each student and staff member
  • Provided user training to ensure successful adoption and efficient usage of Apple devices.

Education

Software Engineering (master’s degree) -

Loyola University
05.2025

Biochemistry (bachelor’s degree) -

Chicago State University
05.2015

Skills

  • SQL
  • Python
  • Database management systems
  • MySQL
  • PostgreSQL
  • Oracle
  • SQL Server
  • Java development tools
  • IntelliJ IDEA
  • Eclipse
  • NetBeans
  • Postman
  • API testing
  • API documentation
  • Java SE
  • Java EE
  • Communication
  • Team management
  • Project management
  • Microsoft Word
  • Excel
  • PowerPoint
  • Outlook
  • Access
  • OneNote
  • Linear data structures
  • Algorithm design
  • Data structure efficiency
  • Curriculum Development
  • Technology Integration
  • Student Advising

Citizenshipstatus

US Citizen

References

References available upon request.

Certification

Artificial Intelligence And Machine Learning

University of Texas At Austin, Austin, TX

Timeline

Artificial Intelligence Engineer Intern

Artheart.ai
07.2024 - Current

Chemistry Teacher/IT Intern

University of Chicago Charter School
08.2022 - 06.2024

Software Engineering (master’s degree) -

Loyola University

Biochemistry (bachelor’s degree) -

Chicago State University
John Barfield