Senior Full-Stack Developer

Company: Aristotle
Location: Washington
Posted on: February 20, 2026

Job Description:

Job Description Job Description We are seeking a Senior Full-Stack Developer with a strong background in building and architecting complex, data-driven systems. In this role, you’ll design and deliver modern applications, APIs, and services that process large volumes of structured and unstructured data. Experience with AI/ML techniques such as machine learning pipelines, natural language processing, or large-scale text analysis is highly essential and will help shape the next generation of our technology. Key Responsibilities Design, develop, and test applications using Microsoft .NET, C#, ASP.NET, MS SQL Server, and front-end frameworks such as Angular or similar. Build and maintain REST-based APIs and services capable of handling scalable, high-throughput data flows. Integrate and deliver code incorporating emerging technologies, with emphasis on AI/ML frameworks, NLP toolkits, and cloud-based data processing. Implement solutions for ingesting, transforming, and analyzing large bodies of text and data. Contribute to architectural decisions, including microservices and distributed systems design. Create and configure CI/CD pipelines for seamless integration and delivery. Provide production support for applications and services, including legacy environments. Document systems and processes for continuity and scalability. Partner with stakeholders to review requirements and contribute to functional and technical specifications. Mentor teammates, lead code reviews, and introduce best practices in development. Salary Range: $130k-$170k per year Requirements Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field. 7 years of experience building and maintaining enterprise-grade web applications using modern languages and frameworks (e.g., C#/.NET Core, TypeScript/Node, React) with Azure cloud services preferred. Hands-on experience implementing AI/ML and NLP technologies (e.g., classification, clustering, summarization) in production applications, with familiarity in model training, back-testing, regression testing, and monitoring. Strong knowledge of database design, query optimization, and building scalable APIs and services. Strong UI/UX and workflow management skills. Proficiency in front-end frameworks such as Angular (or comparable). Understanding of scalability and performance best practices, including rate-limiting, caching, distributed systems, and automated testing frameworks. Excellent problem-solving and communication skills, with the ability to translate complex technical solutions into clear business value. Benefits All positions are Full-Time, with competitive compensation, medical benefits, paid vacation, 401k plan and stock options. Casual dress code and a non-corporate atmosphere make this a fun place to work and learn in a team environment. Please visit our website at www.aristotle.com.

Keywords: Aristotle, Alexandria , Senior Full-Stack Developer, IT / Software / Systems , Washington, Virginia