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Our story

From the subsurface to the software stack

Sepalstack began with a geophysicist. Our founder spent his early career processing seismic data and modeling what lies beneath the ground for energy companies and international governments. That work taught a habit that still shapes everything we do: when the data is huge and messy, find the signal, then show it clearly.

He moved into software, building energy fintech products from scratch: pricing models, due-diligence tools and interactive maps. Along the way he started, scaled and sold a subscription e-commerce company, which taught the other half of the job: software only matters if it helps the business.

Since then he has led analytics, visualization and generative AI projects for global consumer brands, cloud and security companies, a national wireless carrier and a large US bank, where the bar for accuracy, security and auditability is as high as it gets.

Sepalstack brings that experience to growing businesses that need senior engineering without building a large team. The name comes from the sepals that protect a flower bud as it forms, the same role good engineering plays for a business that is growing.

Principles

How we work with you

  • Start with the answer

    We tell you early what we would build, what it costs and what we would not build at all.

  • Something to click every week

    Progress you can use beats progress you have to take on trust.

  • Production, not demos

    Tests, monitoring and security are part of the first layer, not the last.

  • You own everything

    Code, accounts, data and documentation are yours from day one. No lock-in.

Team

Who you will work with

You talk to the person building your software, not an account manager. For larger projects we bring in trusted specialists and introduce them by name.

Naush Khiljee

Founder and principal engineer

A full-stack and AI engineer with a geophysics degree from the University of Houston. He works across the whole stack, from React interfaces and D3 charts to data pipelines, cloud infrastructure and multi-agent AI systems, and he still gets most excited by a good map.

Company

The details

Legal name
Lily Software Services LLC
Brand
Sepalstack
Registered in
Texas, United States
Based in
Houston, Texas
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