Mariana Lungu

Commander
DISC Type : D

Founder at The Ferne

Washington DC-Baltimore Area, United States

Overview

Mariana is a Lead Data Engineer and entrepreneur based in Northern Virginia, specializing in data architecture, governance, and reliability. An AWS Certified Solutions Architect Professional and graduate of The George Washington University, she designs scalable data systems and creates educational content on systems thinking and applied AI through her platform, Archetype Core.

Outside of her technical work, Mariana is an artist with a focus on sculpture, painting, and minimalism. She is the founder of The Ferne, a creative studio. She enjoys hiking, snowboarding, and reading about leadership and psychology, balancing her career with family life and a philosophy of intentional living.

Unique fact: She merges deep technical expertise in data engineering with a creative practice as an artist and painter.

Personality Overview

Decisive

Impact-Driven

Candid & Clear

They like to move fast and expect the same from others.  More than the product, they care about the impact of the product. They respond better to strong and respectful interactions.

Topics They Care About

Data Reliability
Her entire professional focus is on building robust data systems that hold up under pressure, a theme she frequently discusses in her posts.
Systems Thinking
She is a self-described "systems thinking educator" and founded Archetype Core to teach others how to design reliable, data-driven architectures.
Applied AI
Her educational platform, Archetype Core, specifically focuses on LLM integrations, agents, and workflow design, indicating a professional interest in practical AI application.

Media Appearances

Mariana has no verified media appearances

Work History

3-2024
Founder at The Ferne
6-2020 - 1-2025
Senior Data Engineer at A4SAFE, Inc.
4-2019 - 5-2020
App / Data Engineer at Perspecta
1-2017 - 4-2019
Software Engineer at American Society for Engineering Education
9-2016 - 12-2016
Full Stack Web Developer student at General Assembly

Education

4-2022 - 7-2023
Master's degree from The George Washington University School of Business
8-2020 - 5-2022
Bachelor's degree from The George Washington University

More Information

Social Presence :

Prographics :

Exp : 9 Location : Washington DC-Baltimore Area, United States Job Level : Leadership Designation : Founder at The Ferne
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Insights For Selling To Mariana

During A Call Or A Meeting

DO's

  • When negotiating terms, help them build an impression that they are the ones calling the shots
  • Help them weigh the risks by sharing objective proof points without becoming too analytical
  • Speak about competitive differentiation that your product offers

DONT's

  • Don’t take too much time in sending them information if they ask for any
  • Do not spend too much time focusing on product tech or features
  • Do not hesitate from asking counter questions, just avoid challenging their authority

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with Mariana is

  • Conviction around the impact matters the most to them, followed by a sense of achievement and ROI.
  • Will you ever get a clear answer from Mariana

  • If they decide not to use your product, they will say no clearly.

Insights For Deal Planning

    How fast (or slow) will Mariana move?

  • They can reach decisions fairly quickly if they are convinced.
  • Can Mariana take some risk or not?

  • They don’t mind risks but can be quite binary about them.

You And Mariana

Personality Compatibility


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