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Prompt Engineer Jobs in Reston, VA (NOW HIRING)

NSS

Full Stack Engineer (AI Focused)

Herndon, VA · On-site

As part of our core product team, you'll work directly with large language models (LLMs), prompt engineering, and agent-based orchestration to bring intelligent automation to some of the most complex ...

NSS

Full Stack Engineer (AI Focused)

Herndon, VA · On-site

As part of our core product team, you'll work directly with large language models (LLMs), prompt engineering, and agent-based orchestration to bring intelligent automation to some of the most complex ...

rockITdata

AI/ML Engineer

Arlington, VA

This role will focus on Amazon Bedrock Agent configuration, prompt engineering, knowledge base development, coaching ruleset design, QA scoring rubric implementation, and continuous model evaluation.

rockITdata

AI/ML Engineer

Arlington, VA · Remote

This role will focus on Amazon Bedrock Agent configuration, prompt engineering, knowledge base development, coaching ruleset design, QA scoring rubric implementation, and continuous model evaluation.

rockITdata

AI/ML Engineer

Arlington, VA · On-site +1

This role will focus on Amazon Bedrock Agent configuration, prompt engineering, knowledge base development, coaching ruleset design, QA scoring rubric implementation, and continuous model evaluation.

Deloitte

Senior GenAI Engineer

Arlington, VA · On-site

$120.20K - $165.10K/yr

Strategize prompt use (zero/few/one-shot, role, chain-of-thought) for targeted cases. * Work with engineers to incorporate advanced prompt practices into system design. * Continuously improve prompts ...

ClifyX

AI Architect/ AI Engineer

Mclean, VA

$64.75 - $85.25/hr

... Prompt Engineering (Zero/Few-shot, Chain-of-Thought) and prompt design. · Strong Python development experience and ability to guide teams with reference implementations. · Experience with RAG ...

campus4tech

AI Architect

Fairfax, VA · On-site

$62.50 - $82.50/hr

This is not a pure GenAI prompt engineer or research scientist. Program-Level Leader & Communicator * Acts as AI SME for the entire program * Can: * Define AI governance and usage policies * Educate ...

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Prompt Engineer information

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$10

$48

$91

How much do prompt engineer jobs pay per hour?

As of Jun 1, 2026, the average hourly pay for prompt engineer in Reston, VA is $48.99, according to ZipRecruiter salary data. Most workers in this role earn between $37.26 and $63.27 per hour, depending on experience, location, and employer.

What is a Prompt Engineer job?

A Prompt Engineer is a professional who designs, refines, and optimizes prompts to improve interactions with AI models, such as ChatGPT. Their role involves understanding model behavior, crafting precise queries, and experimenting with phrasing to achieve desired outputs. They may work in AI research, software development, or content generation to maximize AI efficiency. Strong skills in language, logic, and sometimes coding are essential for success in this role.

What are the key skills and qualifications needed to thrive in the Prompt Engineer position, and why are they important?

To thrive as a Prompt Engineer, you need a strong grasp of natural language processing (NLP), machine learning concepts, and experience crafting effective prompts for large language models, usually supported by a technical degree or relevant experience. Familiarity with tools such as OpenAI's API, Hugging Face, or other AI platforms, as well as knowledge of programming languages like Python, is highly valuable. Creative thinking, analytical problem-solving, and cross-functional communication skills help differentiate top candidates in this field. These abilities are crucial for optimizing AI outcomes and ensuring collaboration with both technical and non-technical teams.

What does a typical day look like for a Prompt Engineer?

A typical day for a Prompt Engineer involves designing, testing, and refining prompts to enhance the performance of AI language models, often collaborating closely with data scientists, software engineers, and product managers. You might analyze the results of model outputs, integrate user or stakeholder feedback, and iterate on prompt strategies to solve diverse business challenges. Your role will usually include documentation, troubleshooting, and keeping up with the latest advances in AI technologies. Expect a mix of independent work and regular team meetings in a dynamic, fast-evolving environment focused on innovation and improvement.
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Prompt Engineer jobs near you
Infographic showing various Prompt Engineer job openings in Reston, VA as of May 2026, with employment types broken down into 84% Full Time, and 16% Part Time. Highlights an 90% Physical, 1% Hybrid, and 9% Remote job distribution, with an average salary of $101,892 per year, or $49 per hour.
Full Stack Engineer (AI Focused)

Full Stack Engineer (AI Focused)

NSS

Herndon, VA • On-site

Other

Posted 14 days ago

Job description

About the Role

We're building an AI-native platform designed to transform legacy enterprise systems into modern, cloud-native applications. As part of our core product team, you'll work directly with large language models (LLMs), prompt engineering, and agent-based orchestration to bring intelligent automation to some of the most complex refactoring challenges in tech today.

This is a unique opportunity to join a team that doesn't just integrate with AI - we build with it.

What You'll Do

  • Build full-stack features across our frontend (React), backend APIs (Node.js/Python), and AI orchestration layer

  • Design developer tools, IDE extensions, and sidecar services for human-AI collaboration

  • Implement prompt chaining, embedding search, and LLM integration using Amazon Bedrock (Titan, Claude)

  • Apply techniques like RLHF and GRPO to fine-tune LLMs and improve agent behavior

  • Contribute to a scalable cloud-native architecture using AWS EKS, Postgres, S3, OpenSearch, and Neo4j

  • Collaborate across engineering and product to iterate quickly in a fast-paced, mission-driven environment

Who You Are

  • You're a builder with experience across the full stack (React, TypeScript, Node.js, or Python)

  • You're curious about the intersection of AI, developer productivity, and legacy modernization

  • You've worked with LLMs and prompt engineering, or are eager to learn and experiment

  • You have a hacker's mindset and a product-builder's instinct

  • You thrive in environments where experimentation, ownership, and velocity are key

Qualifications

Required:

  • 2+ years of professional experience in software engineering

  • Proficiency with React and either Python or Node.js

  • Strong understanding of API design and modern web development practices

  • Bachelor's degree in Computer Science or related field (or equivalent experience)

Preferred:

  • Experience with Kubernetes (especially AWS EKS)

  • Hands-on experience with LLMs, embeddings, or AI/ML pipelines

  • Familiarity with cloud infrastructure and distributed systems

NSS logo

About NSS

Sourced by ZipRecruiter

NSS RPO was founded by Jessica Nicholson and Conor Nicholson in 2009. They saw the need for a nice services company that valued their employees by putting them first. With Jessica’s organizational skills and strategy along with Conor’s network, the company employed 25 contract recruiters in less than a year and proceeded to make the Inc. 5000 as one of the fastest growing companies in America, three years in a row. Since its inception, NSS RPO has hired hundreds of recruiters in over 30 states. NSS RPO is proud to include among its clients eight of the ten largest government contractors, the world's largest job board, entertainment company and one of the nation’s largest banks. NSS RPO is your trusted provider of Recruitment Process Outsourcing (RPO) solutions. Founded by an experienced recruiter and solely focused on RPO, NSS RPO offers a strong network of exceptional recruiters and customizable staffing solutions. Named to Washington Business Journal’s prestigious list of Top 25 Staffing Agencies seven years in a row, NSS RPO is known for its quality, agility, and expertise. If you have a recruitment staffing need at your organization, NSS RPO can customize a solution for you, no matter how big or small.

Industry

Recruiting and staffing services

Company size

11 - 50 Employees

Headquarters location

Herndon, VA, US

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