Top 685 Security engineer Jobs in Leesburg Va

Application Security Engineer - AI Trainer
DataAnnotation —Reston, VA
- $50 - $100 an hour
- Part-time
- Remote
- English
- Mid-level
- Bachelor's degree
- Flexible schedule
Quick Apply
Cyber Reverse Engineer, Senior
CACI —Sterling, VA
- $113,200 - $237,800 a year
- Full-time
- Computer science
- 7 years
- Computer Science
- Health insurance
Product Security Engineer - AI Trainer
DataAnnotation —Virginia
- $50 - $100 an hour
- Part-time
- Remote
- English
- Mid-level
- Bachelor's degree
- Flexible schedule
Quick Apply
Senior PKI/ Cryptography Engineer
Freddie Mac —McLean, VA
- $126,000 - $190,000 a year
- Full-time
- 5 years
- Windows
- Java
Network Engineer- SME
Cherokee Federal —Chantilly, VA
- $200,000 a year
- Full-time
- Azure
- Maintenance
- 11+ years
- Health insurance
- Dental insurance
Cybersecurity Engineer - AI Trainer
DataAnnotation —McLean, VA
- $50 - $100 an hour
- Part-time
- Remote
- English
- Mid-level
- Bachelor's degree
- Flexible schedule
Quick Apply
Lead, Information Security Systems Engineering
L3Harris Technologies —Chantilly, VA
- $110,500 - $236,500 a year
- Full-time
- 6 years
- System design
- Bachelor's degree
- Paid holidays
- Disability insurance
Network Security Engineer
MANTECH —Chantilly, VA
- Full-time
- 7 years
- Office
- Windows
Resident Engineer – Cyber Asset Management (CAASM/RunZero) | TS/SCI | Reston, VA
Novacoast Staffing Services —Reston, VA
- $100 - $125 an hour
- Full-time
- Azure
- 5 years
- AWS
- Health savings account
- Health insurance
Quick Apply
Network Engineer - Expert
Cherokee Federal —Herndon, VA
- $170,000 - $210,000 a year
- Full-time
- Azure
- Master's degree
- AWS
- Health insurance
- Dental insurance
Senior ServiceNow Software Development Engineer (Risk & Security)
CACI —Chantilly, VA
- $103,800 - $218,100 a year
- Full-time
- 5 years
- Windows
- Analysis skills
- Health insurance
Hiring Event - Security Architecture & Engineering - Sep 24-25th 2026
JPMorganChase —McLean, VA
- $204,250 - $285,000 a year
- Full-time
- Azure
- System design
- Java
- Health insurance
- Tuition reimbursement
Network Security Microsegmentation Engineer
System One —Merrifield, VA
- Contract
- Remote
- Azure
- Windows
- 8 years
- Health insurance
- Dental insurance
Quick Apply
8d
Senior Cybersecurity Incident Response & Threat Analyst
Confidential —Rockville, MD
- $160,000 - $190,000 a year
- Full-time
- Computer Science
- 8 years
- Analysis skills
- Health savings account
- Health insurance
Quick Apply
5d
Cyber Zscaler Network Security Engineering Manager / Manager, Strategy, Growth, and Transformation
Deloitte —McLean, VA
- $134,500 - $265,100 a year
- Full-time
- Computer Science
- Up to 50% travel
- Bachelor of Science
9d
Cyber Threat Intelligence Analyst - AI Trainer
DataAnnotation —McLean, VA
- $50 - $100 an hour
- Part-time
- Remote
- English
- Mid-level
- Bachelor's degree
- Flexible schedule
Quick Apply
Cybersecurity Software Developer
CACI —Chantilly, VA
- $86,600 - $181,800 a year
- Full-time
- Computer Science
- System design
- Windows
- Health insurance
Principal Security Engineer
Fannie Mae —Reston, VA
- $200,000 - $269,000 a year
- Full-time
- Azure
- Research
- Windows
Cyber Test Engineer
Accenture Federal Services —Herndon, VA
- $100,200 - $203,400 a year
- Full-time
- Computer Science
- 5 years
- Military
- Free parking
Cyber Palo Alto Networks Security Engineer/ Senior Consultant, Strategy, Growth, and Transformation
Deloitte —McLean, VA
- $105,400 - $207,800 a year
- Full-time
- Computer science
- Computer Science
- Up to 50% travel

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Application Security Engineer - AI Trainer

DataAnnotation -
Reston, VA

Quick Apply

Job Details

Part-time | Full-time | Contract
$50 - $100 an hour

Benefits

Flexible schedule

Qualifications

Software coding
English
Programming languages

Full Job Description

DataAnnotation is committed to creating quality AI. Help train AI chatbots while gaining the flexibility of remote work and choosing your own schedule.

We are looking for an existing Application Security Engineer - AI Trainer to help train AI models. Cybersecurity platforms are increasingly powered by AI — but these systems still need practitioners with real-world experience to validate whether the outputs actually hold up in practice. That's where you come in.

You'll work closely with state-of-the-art AI models on tasks like evaluating AI-generated security content, solving technical security problems, and providing feedback that directly shapes how these systems reason about real-world threats and defenses. You can fit this work alongside a full-time role, or treat it as your primary focus, choosing projects and schedules that align with your availability and goals.

To get started, once you sign up for an account, you'll take a short assessment (this serves as our version of an interview). If you pass, you'll receive an email confirmation and paid work will become available to you through our platform.

Advantages of contracting with us:

Fully remote: work from anywhere in the US, Canada, UK, Ireland, Australia, and New Zealand.
Flexible schedule: choose which projects you take on and when you work, on your own computer, from the comfort of your own home.
Competitive pay: projects are paid hourly at $50 to $100 USD per hour. Opportunities for higher bonus rates available for certain projects.
Impact: help shape the future of AI technologies built for cybersecurity.

Responsibilities:

Evaluate AI-generated cybersecurity content — including threat analysis, vulnerability assessments, and offensive security techniques — for real-world accuracy and validity.
Design and solve security-focused technical problems used to train AI systems.
Write clear technical explanations and security-relevant code.
Provide feedback that directly shapes the next generation of AI security models.

Qualifications:

2+ years of hands-on experience in a cybersecurity role — such as penetration testing, red teaming, incident response, detection engineering, DFIR, malware analysis, threat intelligence, or adjacent fields, including government or military cyber operations.
Some coding experience required; comfort navigating and patching a codebase is key.
Fluency in English (native or bilingual level) with strong writing skills.
A bachelor's degree is preferred.
Cybersecurity certifications are a plus (e.g., OSCP, CRTO, GREM, GCFA, CEH, and similar).

Note: Payment is made via PayPal. We will never ask for any money from you. This job is only available to those in the US, Canada, UK, Ireland, Australia, and New Zealand.

Quick Apply

Refine Your Search

security engineer jobs in leesburg va

Application Security Engineer - AI Trainer

Cyber Reverse Engineer, Senior

Product Security Engineer - AI Trainer

Senior PKI/ Cryptography Engineer

Network Engineer- SME

Cybersecurity Engineer - AI Trainer

Lead, Information Security Systems Engineering

Network Security Engineer

Resident Engineer – Cyber Asset Management (CAASM/RunZero) | TS/SCI | Reston, VA

Network Engineer - Expert

Senior ServiceNow Software Development Engineer (Risk & Security)

Hiring Event - Security Architecture & Engineering - Sep 24-25th 2026

Network Security Microsegmentation Engineer

Senior Cybersecurity Incident Response & Threat Analyst

Cyber Zscaler Network Security Engineering Manager / Manager, Strategy, Growth, and Transformation

Cyber Threat Intelligence Analyst - AI Trainer

Cybersecurity Software Developer

Principal Security Engineer

Cyber Test Engineer

Cyber Palo Alto Networks Security Engineer/ Senior Consultant, Strategy, Growth, and Transformation

I want to receive the latest job alert for security engineer in leesburg va

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