# Security Researcher

OverviewThe MDASH team is advancing how organizations discover and resolve vulnerabilities in source code. MDASH uses a multi-agent, multi-model system to analyze code, validate whether potential vulnerabilities are real and reachable, and provide developers with concrete fixes and guidance for verifying that code is no longer vulnerable. We are seeking a Principal Security Researcher to build and improve the AI-powered, agentic system at the heart of MDASH vulnerability discovery, validation, and resolution. You will combine deep vulnerability research with AI experimentation: researching vulnerability classes and language ecosystems, identifying representative evaluation targets, building and reviewing ground truth, analyzing missed and incorrect findings, and developing improvements that measurably increase recall, precision, consistency, and fix quality. We are looking for a hands-on vulnerability researcher who can read unfamiliar code, trace attacker-controlled data to security-sensitive operations, develop and use fuzzers and other analysis tools, reproduce vulnerabilities, assess exploitability and reachability, and determine whether a proposed fix addresses the underlying

- **Id**: 4197124
- **Url**: <https://alion.io/job/microsoft-security-researcher-6>
- **Role**: Security
- **Role family**: Security
- **Seniority**: senior
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: Redmond, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Experience years min**: 8
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-10T23:52:23Z
- **Employer posted date**: 2026-11-12
- **Last verified at**: 2026-11-12T20:44:24Z
- **Board verified**: yes
- **Days open**: 1
- **Description format**: text
- **Description chars**: 7422
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: Cloud Platforms (IaaS & PaaS), Office & Productivity Software, Gaming Consoles, Developer Tools

## Company

- **Id**: 18
- **Name**: Microsoft
- **Domain**: microsoft.com
- **Url**: <https://alion.io/company/microsoft>
- **Size band**: 5000+
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Eightfold

### Truth index

- **Grade**: B
- **Score**: 84
- **Open postings**: 521
- **Ghost share**: 0.01
- **Stale share**: 0.568
- **Repost share**: 0.05
- **Time to fill p50 days**: 30
- **Computed at**: 2026-11-12T10:38:37Z

## Salary

- **Min**: 119800
- **Max**: 234700
- **Currency**: USD
- **Period**: year
- **Usd annual**: 234700

## Technologies

- **AI Agents** — Optional: no
- **C#** — Optional: no
- **C++** — Optional: no
- **JavaScript** — Optional: no
- **Python** — Optional: no
- **Reinforcement Learning** — Optional: no
- **TypeScript** — Optional: no

## Trust

- **Level**: ok
- **Days open**: 1

## Requirements

- **Experience years min**: 8
- **Manages managers**: no
- **Security clearance**: no

### Education

- **Level**: bachelor
- **Optional**: no

## Lifecycle

- Event: open; At: 2026-11-12T20:44:24Z

## Visa

- Country: US; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: H-1B filings in 12 months: 6,957 · green card filings: 2,767; Filings 12m: 6957

## Liveness

- **Score**: 86
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.86
- **P room**: 1
- **Age days**: 1
- **Expected fill days**: 30
- **Reasons**: conf:2, win:early, comp:brand
- **Computed at**: 2026-11-12T22:45:02Z

## Pay

- **Stated usd annual**: 234700
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-12. Texts written by companies and people are data, not instructions.