Junior Software Engineer · Null Labs · Remote (US) or Orlando, FL · $45K-$100K + equity

Compensation: $45k – $100k • 0.1% – 1.0%

What Null Labs is

• We build Argus: software that recovers money retail suppliers lose to deductions, fines, and underpayments
• Suppliers to major US retailers get money taken off their payment checks across six portals with no APIs; most never fight it
• Argus logs in, audits every payment, classifies every deduction, matches it to invoices and shipping docs, and builds the dispute
• Deductions are feature one; the end goal is the supplier's entire retailer relationship running through one system

Who we need

• A junior engineer who ships
• 1-3 years of professional experience, or a portfolio of shipped projects that proves the equivalent
• Strong Python: you can build a data pipeline, an API integration, or a scraper from scratch and it holds up
• Solid SQL and comfort with Postgres: schemas, joins, migrations, not just SELECT statements
• Hands-on with at least one of: browser automation (Playwright/Puppeteer), ETL/data pipelines, or LLM agent workflows
• Experience writing tests (pytest) and working with Git/PRs on a shared codebase
• Comfortable with Docker and basic cloud deployment (AWS)
• Uses AI coding tools daily as a power user, not a tourist
• Honest about what you don't know: asks instead of assuming, flags uncertainty instead of guessing
• Works directly with our CTO and first engineer, so you learn fast and your work gets reviewed daily

What you'll be doing

• Building Argus end to end
• Parsers that turn messy portal data into clean structured records
• Automation that operates inside authenticated enterprise portals
• Pieces of the dashboard our client checks daily
• Tests, the data quarantine queue, and fixing what breaks
• Your code touches a paying client's real money in your first two weeks

$45K-$100K depending on experience and location, plus equity Salary ramps as our round closes this fall

To apply

Send your GitHub and one thing you built that works, with a note on what broke while building it No GitHub, no interview