Senior AI Security Platform Engineer (Remote)

NinjaOne; California (MO); Hybrid; USD 170,000 - 230,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

401(k) plan

Unlimited PTO

Job summary

NinjaOne in the United States is hiring a Senior Software Engineer for its Application Security Engineering team to build an AI platform that discovers vulnerabilities in production code and validates findings against real attack paths.

You will own code from design to production, tackling agent orchestration, durable execution, and cost control, enabling engineers to find and fix vulnerabilities earlier with trusted evidence.

Qualifications

• 5+ years of software engineering experience with ownership of production services or automation platforms.
• Strong Python skills with asynchronous concurrency, typing, testing, packaging, and profiling.
• Experience building multi-step workflows with durable state, idempotent retries, task queues, observability, and resource limits.
• Hands-on experience with LLM APIs, tool calling, structured outputs, context management, and evaluation.
• Experience with AWS or comparable cloud infrastructure and distributed systems.

Responsibilities

• Build and operate a production AI vulnerability platform with resumable workflows, bounded agent execution, model routing, and per-repository budgets across AWS Bedrock and OpenAI‑compatible APIs.
• Engineer repository context, threat models, and coverage tracking so agents can reason about entry points, trust boundaries, tenant isolation, and relevant code paths.
• Build independent validation, stable finding identity, and deduplication. Ground reachability and exploitability of judgments in code, deployment evidence, and reproducible tests.
• Develop patch and regression‑test workflows that demonstrate a failing test before a fix and a passing test afterward, check for regressions, and require human review before merging.
• Protect agent execution with sandboxing, least‑privilege tool access, and controls for untrusted repository content, prompt injection, secrets, and sensitive data.
• Partner with security and engineering teams to deliver findings through SARIF and existing workflows. Measure validated finding quality, coverage, reliability, and cost per validated finding; communicate results and share engineering practices.
• Other duties as needed

Skills

Python

LLM APIs

Asynchronous

AWS

Security engineering

Golang

C++

Java

Kotlin

PostgreSQL

Education

Bachelor's degree in Computer Science or related field

Tools

Java

Kotlin

C++

Golang

PostgreSQL

AWS Bedrock

OpenAI API

Job description

NinjaOne in the United States is hiring a Senior Software Engineer for its Application Security Engineering team to build an AI platform that discovers vulnerabilities in production code and validates findings against real attack paths.

You will own code from design to production, tackling agent orchestration, durable execution, and cost control, enabling engineers to find and fix vulnerabilities earlier with trusted evidence.