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Location
In office (Reston)
Seniority
Intern
Employment
Internship

Confirmed on the employer's own hiring board on Oct 15, 2026. First seen by Alion on Oct 14, 2026. ICF scores A on the Alion truth index.

Overview
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ICF

ICF International is an American consulting and technology services firm founded in 1969 as the Inner City Fund, and it now works predominantly for United States federal, state and local government clients. Its practice areas cover public health programmes, energy efficiency and utility programme delivery, disaster recovery and resilience, environmental assessment, transportation planning and the digital modernisation of agency systems, alongside a marketing services business serving both public and commercial clients. Headquartered in Reston, Virginia and listed on Nasdaq, it employs around nine thousand people and depends heavily on federal contract awards.

As a Software Engineer Intern, you will join our innovative AI research and development team to work on cutting-edge, impactful real-world AI challenges. You will collaborate with experienced AI researchers, machine learning engineers, data engineers, and data scientists to design, develop, and implement advanced machine learning models, including large language models to deliver scalable and transformative AI-driven solutions. This internship offers the chance to apply theoretical knowledge to real-world, high-impact AI projects and receive hands-on technical mentorship and career development support from industry-leading experts.

This is an entry-level, 10-week, full-time internship expected to begin in June and end in August. Work will be hybrid from our Reston, VA office. At this time, we are unable to provide housing nor relocation assistance for this position.

What you will do:

  • Contribute to the AI lifecycle:
  • Support the end-to end AI product development process, encompassing data acquisition, preprocessing, model design, training, optimization, deployment, monitoring, and evaluation to ensure scalable and robust solutions.
  • Assist in all phases of the machine learning lifecycle, including data collection, preprocessing, model development, optimization, deployment, and evaluation.
  • Develop machine learning models:
  • Design, develop, and train advanced machine learning models, including deep learning and large-scale models, to address complex challenges in domains like natural language processing (NLP) and Generative AI.
  • Build and train machine learning models, including deep learning models, to solve complex challenges in areas such as natural language processing (NLP), computer vision, or generative AI.
  • Analyze large datasets:
  • Conduct exploratory data analysis and advanced feature engineering on large-scale, semi-structured datasets to uncover actionable insights and enhance model accuracy and efficiency.
  • Perform data analysis and feature engineering on massive, semi-structured datasets to extract meaningful insights and improve model performance.
  • Engineer robust software:
  • Develop high-quality, production-ready code in languages such as Python, Java, C++, R, JavaScript, along with a good understanding of common AI development frameworks such as TensorFlow, PyTorch, Keras, and Scikit-learn while actively participating in system design discussions, code reviews, and testing to ensure robust and maintainable software.
  • Write clean, production-level code in languages like Python and C++, and participate in design sessions and code reviews to ensure software quality.
  • Research emerging technologies:
  • Research and prototype cutting-edge AI and machine learning methodologies, including advancements in areas like explainable AI, federated learning, or multimodal models, while keeping abreast of the latest research and industry trends.
  • Help research and prototype new AI and machine learning techniques, staying up-to-date on the latest advancements in the field.
  • Collaborate across teams:
  • Partner with cross-functional teams, including product or project managers, data engineers and scientists, and software engineers to refine project requirements, align on objectives, and deliver innovative, high-impact AI-driven solutions.
  • Work closely with cross-functional teams, including product managers and other engineers, to define project requirements and deliver high-quality technology products.

Minimum Qualifications

  • By start date, a minimum of 30 completed college-level credit hours is required preferably in computer science, Information Technology, or related field.
  • Candidate must be a US citizen, reside in the U.S., be authorized to work in the U.S., and all work must be performed in the U.S. per contract requirements.

Preferred Qualifications

  • A strong foundation in core computer science concepts, including object-oriented design, data structures, algorithms, and complexity analysis.
  • Proficiency in at least one general-purpose programming language, with a strong preference for Python.
  • Experience with machine learning frameworks such as PyTorch, TensorFlow, or Scikit-learn.
  • Demonstrated experience with large-scale datasets and data preprocessing.
  • Excellent problem-solving, communication, and collaboration skills.
  • Experience with version control systems like Git is a plus.

Perks of working with us

  • Mentorship: You will be paired with a dedicated mentor to support your growth and development throughout the internship.
  • Hands-on experience: Gain valuable, practical experience working on impactful, real-world AI projects.
  • Learning opportunities: Access training resources and workshops to enhance your technical and professional skills.
  • Networking: Build valuable connections with a community of world-class scientists, engineers, and visionaries.

Bot and Third-Party Applications

Please note that this application must be submitted directly by the applicant for consideration. Failure to do so may result in the application being excluded for consideration. Applicants needing an accommodation for disability or religious purposes in connection with the application process should contact [email protected] for assistance.

Working at ICF

ICF is a global advisory and technology services provider, but we’re not your typical consultants. We combine unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future.

We can only solve the world's toughest challenges by building a workplace that allows everyone to thrive. We are an equal opportunity employer.Together, our employees are empowered to share theirexpertiseand collaborate with others to achieve personal and professional goals. For more information, please read our EEO policy.

We will consider for employment qualified applicants with arrest and conviction records.

Reasonable Accommodations are available, including, but not limited to, for disabled veterans, individuals with disabilities, and individuals withsincerely heldreligious beliefs, in all phases of the application and employment process. To requestan accommodation,please email [email protected] and we will be happy toassist. All information you provide will be kept confidential and will be used only to the extentrequiredto provide needed reasonable accommodations.

Read more about workplace discrimination rights or our benefit offerings which are included in the Transparency in (Benefits) CoverageAct.

Candidate AI Usage Policy

At ICF, we are committed to ensuring a fair interview process for all candidates based on their own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) tools to generate orassistwith responses during interviews (whether in-person or virtual) is notpermitted. This policy is in place tomaintainthe integrity and authenticity of the interview process.

However, we understand that some candidates may require accommodationthat involves the use of AI. Ifsuch anaccommodation is needed, candidates are instructed to contact us in advance at [email protected]. Weare dedicated to providingthe necessary support to ensure that all candidates have an equal opportunity to succeed.

Pay Range - There are multiple factors that are considered in determining final payfor a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, geographic location, education and certifications as well as contract provisions regarding labor categories that are specific to the position.

The pay range for this position based on full-time employment is:

$37,855.00 - $64,354.00Reston, VA (VA30)
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