Who we are

This project was born from a shared belief:
that healthy, productive soil is the foundation of a resilient food system.

We're here to make advanced soil analysis accessible, actionable, and farmer-first—because good data should lead to great decisions.

Jack Washburn

Man standing outdoors with arms crossed, wearing a brown button-up shirt.

Co-Founder & CEO
Man with mustache in plaid shirt standing outdoors with arms crossed

Ethan Poliner

Co-Founder & CFO

Cooper Martin

A smiling person standing outdoors on a grassy path, wearing a patterned shirt and light-colored pants, with hands in pockets.

Co-Founder & CTO

Jesús Miranda

A man wearing a plaid shirt, jeans, and glasses, standing and smiling in a wooded area.

Senior Developer

Laura Waterbury

Senior Developer

Jordan Frye

Sales & Marketing

Join Us!

Open Positions:

  • Role Overview: We're looking for a Full-Stack Engineer with experience in AI/ML, particularly
    Retrieval-Augmented Generation (RAG), agentic AI, and semantic matching. You'll directly build
    analytics and recommendation tools that drive smarter, sustainable agricultural decisions.


    Key Responsibilities:
    ● Build and optimize Retrieval-Augmented Generation (RAG) and semantic matching
    systems.
    ● Implement and maintain agentic AI interactions with custom data tools.
    ● Design efficient embedding models and vector similarity search capabilities.
    ● Ensure robust error handling, debugging, and system reliability.
    ● Support scalable deployment and infrastructure planning.


    Technical Competencies:
    ● Python expertise with AI/ML frameworks, including LangChain.
    ● Experience with vector databases (Pinecone, Weaviate, ChromaDB).
    ● Proficiency in semantic text processing and document chunking.
    ● Skilled in evaluating, debugging, and monitoring AI models.
    ● Knowledge of testing frameworks for AI applications.


    Bonus Skills:
    ● MERN stack or general full-stack web development experience.
    ● RESTful API design and JavaScript/TypeScript proficiency.


    Why Join Cultra?
    ● Work on real-world AI systems that directly impact environmental outcomes.
    ● Join a small team where your engineering decisions shape the product.
    ● Build technology that addresses a massive climate and sustainability challenge.
    ● We're based at Brickyard in Chattanooga, TN, with the flexibility to work remotely.


    To apply, send a resume and a short note about why you're interested to jack@cultra.us

Book a Demo

It’s a quick, no-commitment look at how better soil insights can boost your bottom line.