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Uncountable

Full-Stack Engineer

  • Seen live on Uncountable's site yesterday
  • Mid level
Pay
$130k to $200k a year USD
Location
New York, London, Toronto, San Francisco
Open for
17+ days
First seen
Oct 18, 2026
Apply on Uncountable's site (opens in a new tab)

Posting record

No flags

Open 17+ days

The posting's record, oldest first
  1. Uncountable's site dates the posting
  2. Ghostless first sees this listing
  3. Last checked: still up
How we know

It hasn't been reposted, listed twice, or left up unusually long, and the posting doesn't say it's a talent pool.

Ghostless records the day it first sees a posting, so a repost can't reset its age. This one was already up when Ghostless started tracking Uncountable, so its true age is longer.

Last checked Nov 3, 2026.

How well do you match?

See how much of this posting your resume shows, and what it's missing.

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What the posting discloses

Pay
$130k to $200k a year USD
Salary Range: $130K-$200K + Equity (quoted from the posting)

Not stated: Real vacancy, AI screening.

Why these three

Ontario requires postings from employers with 25 or more staff to state the pay, whether the vacancy exists, and whether AI screens applicants.

Skills mentioned

About the role

Thank you for your interest in Uncountable Engineering!

Description

‍ Uncountable is seeking experienced platform engineers who are passionate about user experience and scaling web applications. Our goal is to revolutionize industrial research and development. We're looking for motivated engineers who can help to build a state of the art development platform that will be used across Fortune 500 companies.

Primary Responsibility

You primary responsibility will be to develop the Uncountable Web Platform where scientists upload and analyze their experiments. This role would be about half front-end and half back-end.

Salary Range: $130K-$200K + Equity

Requirements

  • Development experience
  • Strong interest in developing data analysis-driven user interfaces and experiences
  • Experience with modern Javascript best practices
  • Solid computer science and software engineering fundamentals

Preferred Qualifications

  • ‍ ‍ B.S. in computer science
  • Familiarity with React, ES6
  • Familiarity with SQL Databases including query performance optimization

Our Current Stack

  • Backend: Flask (Python), Postgres
  • Frontend: React (Typescript), Redux, Sass
  • Agentic Coding: Claude Code, Codex, & more

Benefits

  • Competitive Salary and Equity
  • Health and Dental Insurance
  • 401K with Employer Contribution

Agentic Coding

Development at Uncountable has changed dramatically due to the introduction of LLM's. Read more about our practices at

https://engineering.uncountable.com/coding

We're excited for you to build the future of development with us.

What's next? Learn more about Interviewing at Uncountable

Learn more about our engineering team: Check out our blog

By applying for this role, your personal data will be processed in accordance with our Privacy Policy .

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