Senior Full-Stack Developer

Location: Washington, District of Columbia, United States

Department: Software Development

Workplace: hybrid

Employment Type: full

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.