Haystack
← Back to Jobs
Full time
Technology
NU

Software Engineer

Nullify, IncSydney, Sydney🇦🇺AustraliaPosted 9 Oct 2026

Quick Overview

Seniority
Mid Senior
Employment type
Full Time
Work mode
Hybrid
Location
Sydney, Sydney, Australia
Python

Job Description

Every detection service we ship - SAST, DAST, SCA, secrets, cloud posture - shares one pipeline shape and one bar for correctness. You'll own real slices of that system, from taint-analysis code graphs to the distributed logic that decides whether a PR is safe to merge.

What you'll do
  • Build and extend detection and remediation pipelines across our security services, in Go and Python.
  • Work on genuinely hard distributed-systems problems: deterministic PR check runs, idempotent scan orchestration, fair queuing across thousands of customer repos.
  • Ship code that's held to a real bar - typed, tested, reviewed, and deployed by commit sha with no shortcuts.
  • Work close to the product: what you build shows up as a fix in a real engineer's PR within days, not quarters.
What you bring
  • Strong fundamentals in Go and/or Python, and the judgment to know when to reach for which.
  • Experience with production distributed systems - queues, state machines, idempotency, failure modes.
  • A preference for simple, correct code over clever abstractions.
  • Curiosity about security, even if it's not your background yet.

Similar jobs