Full Stack Developer

ICF • Reston, VA

1d • $98,614 - $167,644 • Remote

About The Position

ICF’s Health, People, and Human Services Group (HPHS) is seeking a Full Stack Developer to support our HPHS Group Technology team in the design and delivery of impactful applications and next-generation AI-powered solutions for both internal project teams and external clients. This position will provide an opportunity to work with modern web technologies and contribute to pioneering Generative AI projects from proof-of-concept through production grade applications. This is a highly collaborative role where you'll work shoulder-to-shoulder with designers, other developers, and domain experts in a fast-paced, rapidly changing environment.

Requirements

• Bachelor's degree (or equivalent) with 5+ years or Master’s and 2+ years of professional experience in full stack software development building production-grade applications
• Experience with JavaScript/TypeScript and at least one modern front-end framework (e.g. React, Angular, or Vue)
• Experience with at least one back-end language or framework (e.g. Node.js, Python, Java, Django, Flask)
• Experience with database design, including both SQL relational databases and NoSQL technologies
• Solid experience working with RESTful APIs and integrating them into applications.
• 1+ years of experience integrating LLMs into production systems with a focus on prompt-engineering, error analysis, security, and reliability
• 1+ years of experience with cloud platforms, infrastructure as code, CI/CD, and modern development workflows
• Ability to work productively and form relationships at all levels from senior leadership to entry level.
• Strong collaboration skills with designers, product owners, and other engineers
• Enjoy wearing multiple hats and tackling diverse technical challenges
• Self-motivated individuals who can seize opportunities to add value without a lot of direct supervision.
• Excellent communication skills, with the ability to effectively translate between non-technical and technical stakeholders.
• Strong presentation skills, with the ability to simplify complex topics for a business audience.

Nice To Haves

• Ability to translate business requirements into technical solutions
• Familiarity with AI/ML products, architectural concepts, and responsible AI use
• Exposure to agentic system frameworks (such as CrewAI, Azure SDK, Agent Kit) or AI workflow orchestration and automation tools
• Experience with AI evaluation and testing frameworks (e.g., Promptfoo, LangSmith, or similar)
• Experience with specification-driven software development, especially workflows supported with coding assistants (e.g., Github SpecKit)

Responsibilities

• Build end-to-end features that directly impact our clients and subject matter experts, from database design to polished user interfaces
• Support product initiatives from conception through launch, working closely with our product team to validate ideas through experimentation and user feedback
• Collaborate with designers to create intuitive, delightful user experiences and provide technical input on UI/UX decisions
• Use data to inform product decisions through A/B testing, analytics, and user research insights
• Communicate progress and insights to stakeholders, translating complex technical work into business impact

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level