Arjun Aggarwal, Founding Engineer at Lightfield

About

Founding Engineer at Lightfield · San Francisco

I’m a founding engineer at Lightfield (opens in new tab) in San Francisco. We are building a CRM for companies where sales, product, engineering, and delivery all participate in the customer relationship.

My work moves between product and systems. I’ve helped turn product operations into a public API and Python SDK used by our own agent, built tools for creating and editing CRM tasks, and worked on workflow automation, human review, notifications, and core product surfaces.

I’m interested in what changes when software is operated by a model as well as a person. Human-facing products contain years of implicit assumptions: people resolve ambiguous names, notice stale records, recover from unclear errors, and understand when a technically valid action would be socially wrong. When a model becomes another operator, those assumptions become product and systems decisions.

Before Lightfield, I briefly joined YouTube’s Living Room team at Google. I left after a week because I wanted more ownership and a shorter distance between the work and the customer. The decision was not as inevitable as a retrospective career narrative can make it sound. It was a bet on what I would learn, made with limited information.

Earlier, I built financial-event infrastructure at AWS, worked with a roughly 900-million-edge graph at Capital One, automated risk testing at Bank of America, joined Mindgrasp before it had traction, and co-founded Plato, a service catalog for internal engineering knowledge.

Looking backward, I can see a recurring attraction to systems that make complicated domains easier to understand and operate. I’m wary of making the trajectory sound more deliberate than it was. Some choices came from intellectual interest, some from opportunity, and some from wanting to move faster.

Much of the writing here starts with a view I held too confidently, a system that behaved differently than expected, or a decision that looked different depending on where you sat. I care about reaching a conclusion, but I want the competing views and missing information to remain visible.

Outside work, I spend a lot of time on restaurants, films, music, cities, soccer, and travel. Those interests live mostly in the Log, where they are allowed to remain interests rather than become metaphors for software.

The best way to reach me is email. You can also find me on LinkedIn (opens in new tab), GitHub (opens in new tab), and X (opens in new tab).