Principal Full Stack Engineer
This is the employer's own posting, not a copy on a job board.
What we know
Is it still open?
Confirmed still open
Last checked 2d ago — checked against the employer's own applicant tracking system, which is the company answering directly.
We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.
How old is it?
Posted 46d ago
The date the source published, not the day we noticed it (2026-08-25). Last seen at its source 2h ago.
We have tracked this listing since 5 Oct 2026 (5 days). The employer's own board has carried it every time we have read it, most recently 2 hours ago.
Is it remote?
Marked remote on the employer's board
Their board carries a remote setting on this posting — a field they filled in, not wording we read. The location field names somewhere specific, which is usually where the team or the entity sits.
Who may apply?
United States
The description agrees: it names United States.
What the ad says
…Location: Boston or US Remote About Us Nebulock builds hunt-first, beh…
Pay
$200k–230k/yr
Read out of the job description by us, not from a structured field. Shown in the posting's own currency and period; we never convert.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
-
Ashby employer's own board first seen 5d ago · last seen 2h ago
The listing
Location: Boston or US Remote
About Us
Nebulock builds hunt-first, behavior-first security operations. Enterprise security teams use us to find attackers already inside their environment by spotting behavior that's abnormal for that organization, rather than by matching signatures of attacks someone has already seen. Attackers rotate tooling constantly and it costs them almost nothing; changing how they behave is much harder.
Series A, $34M total raised led by FirstMark, with Bain Capital Ventures, Decibel, Zetta, Step Function, and In-Q-Tel. Founding team out of CrowdStrike, Palo Alto Networks, and Arctic Wolf.
The platform is a closed loop:
A per-customer behavioral system of record that learns what normal looks like in a specific environment and gets more useful the longer it runs
Detections built from that context, re-baselining as environments shift, maintained by a detection engineering team rather than shipped and forgotten
Autonomous hunting agents that work from a hypothesis instead of an alert, and write the detection when they establish root cause
Detection engineering agents that take the context of threat hunts run to build, test, validate and deploy behavioral detections for Nebulock customers.
Position Overview
As a Principal Full Stack Software Engineer at Nebulock, you will own the end to end product experiences that power our hunt-first security operations platform. You will architect, build, and maintain the systems that our customers interact with on a daily basis. You’ll work on solving a wide range of problems for our customers, from ensuring that the threat intelligence we surface is relevant to each customer’s environment, to building a customer-facing query builder that enables customers to build composite detections. You’ll collaborate closely with our product organization, our internal threat hunters and detection engineers, and our data platform team to ensure that we are solving real customer problems. This role is ideal for engineers who want significant ownership over customer-facing systems and who enjoy touching all parts of the stack from the database layer up to the UI.
Expected Impact
Architect, build, and maintain core functionality for our customer-facing product across the stack
Collaborate cross-functionally to ensure we are delivering an innovative and impactful product
Propose architectural changes across the stack that allow us to move quickly while ensuring that our systems are scalable and maintainable
Help set engineering standards across the organization (e.g. AI tooling, public facing API standards, testing standards)
Co-own the technical roadmap and advocate for the technical investments that matter most
Mentor other engineers on the team to ensure Nebulock engineering is constantly getting better
Qualifications
8+ years of full stack software engineering experience
Proficiency in Python, Go, Java, or Rust
Strong experience with Typescript
Experience with either AWS or GCP
Opinionated about frontend design systems and what makes a good UI
Experience working with microservices
Strong fundamentals in API design, data modeling, and distributed systems
Demonstrated ability to translate ambiguous customer needs into technical solutions
Ability to adapt, iterate, and ship quickly
Hunger for growth and the desire to work in a low-ego environment
Nice to Haves
Experience with Angular
Cybersecurity experience
Startup experience
Experience building agentic systems
Experience with Devops or Infrastructure
Compensation
We offer a competitive compensation package comprised of a base salary, equity and comprehensive benefits. The base salary for this role is $200,000 to $230,000. Compensation packages are determined based on a number of factors including but not limited to, role related experience, skillset, and geographic location.
Benefits
Health, dental, and vision coverage
Unlimited PTO
Remote working flexibility
Life Insurance
401k