AI Prompt Engineer

ecsfederal; Virginia (MN); On-site; USD 120,000 - 140,000; Full time

Job summary

Everforth ECS is seeking an AI Prompt Engineer to design and govern AI-assisted workflows for vulnerability and risk analytics, primarily using Microsoft Copilot within the TESS program for DHS/CISA. The role requires a TS clearance eligibility and on-site work in Arlington, VA, with an emphasis on reliable, reproducible AI outputs in a federal cybersecurity environment.

The candidate should have 3+ years of experience with AI/ML tools, proficiency in CISA-approved toolsets, and experience with

Qualifications

• At least 3+ years of experience with AI/ML tools or LLMs, preferably in federal/defense contexts.
• CompTIA Security+ or equivalent DoD 8140/8570 IAT Level II certification is required.
• Demonstrated expertise in prompt engineering techniques (chain-of-thought, few-shot framing, system instructions).

Responsibilities

• Structured Prompt Design: craft, deploy, and refine prompts for vulnerability analysis and risk summaries.
• Model Optimization & Parametric Testing to reduce hallucinations in risk scoring and summaries.
• Governance & Prompt Library Management with version-controlled repository of prompts.
• Quality Gates & Reproducibility to benchmark prompt accuracy and repeatability across feeds.
• Operational Alignment to translate cybersecurity workflows into AI-assisted templates for delivery teams.

Skills

AI/ML experience

Prompt engineering

Documentation & standardization

CISA tooling experience

Generative AI techniques

Education

CompTIA Security+ (IAT Level II)

Tools

Microsoft Copilot

M365 Copilot

GovCloud AI Environment

Job description

Everforth ECS is seeking an AI Prompt Engineer to work in Arlington, VA.

ECS is seeking talented professionals to join our growing team supporting the Cybersecurity and Infrastructure Security Agency's (CISA) Technical Engineering and Support Services (TESS) program. TESS is CISA's integrated, capability-driven mission ecosystem designed to scale across mission and delivery spaces within the DHS/CISA/Cybersecurity Division.

Job Description

The Prompt Engineer (Vulnerability & Risk Analytics) designs and governs AI-assisted workflows that accelerate the analysis of software vulnerability and risk data for the TESS program. Operating on-site in Arlington, VA, the engineer will utilize CISA-approved enterprise AI tools (primarily Microsoft Copilot) to transform complex security datasets into actionable intelligence. The position requires disciplined testing, structured framework design, and detailed documentation to ensure all AI outputs are reliable, secure, and reproducible in a federal cybersecurity environment.

Key Responsibilities

• Structured Prompt Design: Craft, deploy, and refine structured system and user prompts utilizing advanced role-play and constraint strategies to support software vulnerability analysis, CVE/CWE parsing, and threat risk summaries.
• Model Optimization & Parametric Testing: Systematically test model outputs across varied enterprise temperature and grounding parameters to eliminate hallucinations in risk scoring and threat summarization.
• Governance & Prompt Library Management: Document prompt patterns, maintain a centralized, version-controlled repository of reusable prompts, and establish clear guidelines for when to apply specific techniques.
• Quality Gates & Reproducibility: Enforce rigorous validation and reproducibility rubrics to benchmark prompt accuracy, consistency, and repeatability across software supply chain and vulnerability data feeds.
• Operational Alignment: Translate manual CISA cybersecurity workflows into standardized AI-assisted templates to assist technical delivery teams and capability leadership.

Salary Range: $120,000 - $140,000

General Description of Benefits

• Active Top Secret (TS) clearance with the ability to obtain DHS/CISA Suitability.

• 3+ years of professional experience working with AI/ML tools or large language models, with a strong preference for candidates supporting federal, defense, or intelligence organizations.
• Experience with Primary Tooling: CISA-approved AI toolsets (Enterprise Microsoft Copilot / M365 Copilot / GovCloud AI Environment)

• CompTIA Security+ or an equivalent CompTIA certification meeting DoD 8140/8570 IAT Level II requirements.
• Demonstrated expertise in generative AI prompt engineering techniques (such as chain-of-thought, few-shot framing, and system instructions) and prompt evaluation/testing methodologies.
• Proven capability to document, standardize, and scale repeatable technical practices for broader team adoption.