Full-Stack Engineer (Jr / Mid / AI / Agentic / Product)

• Fearlessly works across the entire stack (backend / frontend / design / infra / tooling )
• Strong Python, JavaScript, React, React Native, Flask, PSQL, and LLM-prompting skills.
• Great prompting and knowledge of agentic systems (including building your own from scratch)
• Strong communication skills for our non-technical userbase, and very technical team
• Strong English as sales, prompting, and LLMs, all deal with language and what to say

Application process

A well-rounded application to test across the stack and against team culture.

• Intro call - get to know Selix & the SellScale team.
• Take home - Build a full stack agentic app
• Technical — Pair-program on your deliverable
• Product & pace — Walk through the non-tech side of SellScale - filled with prototyping, WOZing, prompting, and more.

The stack

✅ Front-end: React/Typescript

✅ Database: PostgresSQL

SellScale is building the first agentic revenue org.

Background: At a business, you’re either building the product or selling it.

Enterprise sales spend is a multi-$bn market.

Problem: As businesses grow larger, their sales spend grows disproportionately .

Why?

Sales—especially outbound—is still human-driven: it’s subjective, hard to measure, and doesn’t scale like code.

This is exactly the kind of problem agents are built to solve.

Opportunity: With the advent of recent tech like like agentic AI, large language models, vector databases, and more - future sales is human x machine .

Our agent, Selix , has already seen a lot of success.

Timing: Right now, we are in the dot-com boom of AI Agents.

The agents we' build help solve a businesses’s #1 problem: how to grow revenue.

We use Chained LLM thinking and start of the art GTM tools to help companies grow.

Want to learn more?

Check out our resources below:

Reference 2: I’m AI BDR, and I’m Selix (I’m a Mac, I’m a PC Parody )