Senior Full Stack Engineer

*We are open to supporting 100% remote work anywhere within the US* If you live in the DC Metro area you will be required to go into the customer site in Rockville MD 1 day a week.

ICF is seeking a highly motivated and technically skilled Full-Stack Software Engineer with 45 years of experience in full-stack development and AI-driven application design. The ideal candidate will possess strong hands-on experience in developing both Proof of Concepts (POCs) and production-ready applications with a deep interest in Generative AI (GenAI) and Large Language Models (LLMs). You will work closely with cross-functional teams to ideate prototype and implement innovative AI-based solutions to solve complex real-world business challenges.

Our Digital Modernization Division is an information technology and management consulting department that offers integrated strategic solutions to its public and private-sector clients. ICF has the expertise agility and commitment to design build and operate high-performance IT engines to support all aspects of our clients business.

Key Responsibilities

• Design develop and deploy end-to-end AI-powered web applications from rapid prototypes to scalable production systems.

• Collaborate with data scientists AI researchers and product managers to translate conceptual ideas into working software.

• Build and integrate LLM and Generative AI solutions leveraging frameworks like Hugging Face LangChain or similar open-source toolkits.

• Develop Proof of Concepts (POCs) to validate ideas quickly while maintaining focus on feasibility and user experience.

• Implement cloud-based AI services (AWS GCP Azure) for model deployment scalability and monitoring.

• Maintain best practices for data handling including data ingestion preprocessing and feature engineering.

• Optimize application performance security and reliability across the full stack.

• Communicate technical concepts clearly to non-technical stakeholders and contribute to team knowledge sharing.

Required Qualifications

• Bachelors Degree

• 4 years of proficiency in React and for front-end and back-end development.

• 3 years of strong programming experience in Python with familiarity in frameworks and libraries such as TensorFlow PyTorch and Keras.

• 3 years of experience with RDBMS (ideally both Oracle and PostgreSQL) and PL/SQL

• 3 years of experience with RESTful API design microservices architecture CI/CD tools methods and processes including development of multi-environment pipelines (e.g. Jenkins AWS CodePipeline) Configuration and Containerization/Orchestration including Docker & Kubernetes

• Familiarity with cloud services (AWS GCP Azure) especially AI/ML platforms such as SageMaker or Azure ML Studio.

• Green Card Holder or US Citizenship required due to federal contract requirements

• Must be able to obtain Public Trust clearance

• MUST RESIDE IN THE United States (U.S.) and the work MUST BE PERFORMED in the United States (U.S.) as this work is for a federal contract and laws do apply

Preferred Experience

• Masters Degree

• Exposure to fine-tuning or adapting pre-trained AI models for custom use cases.

• Hands-on experience with open-source Generative AI frameworks such as Hugging Face Transformers LangChain or similar.

• Experience building and deploying LLM applications or working with text-to-image models like Stable Diffusion.

• Knowledge of CI/CD pipelines and MLOps practices for scalable AI deployment.

• Familiarity with data versioning model evaluation and performance optimization.

• AWS experience including some of the following:

  • EC2 RDS S3 CloudFront DataDog EKS Helm Jenkins ECS Fargate

Working at ICF

Pay Range - There are multiple factors that are considered in determining final pay for 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: