Summer 2027 - Full Stack Engineer Internship

Greystone & Co II LLC; Warrenton (VA); On-site; USD 28,000 - 39,000; Full time

Job summary

Greystone & Co II LLC seeks a motivated Full Stack Engineer Intern to assist with the development of several web applications. You will work on front-end and back-end tasks using C#, .NET, ASP.NET Core, Python, React, and JavaScript, gaining exposure to the full product lifecycle through Agile Scrum.

You’ll write SQL queries and collaborate on database development with Microsoft SQL Server, while leveraging AI-assisted tools like GitHub Copilot and ChatGPT/Codex to accelerate coding, debugging,

Qualifications

• Pursuing a degree in Computer Science, Software Engineering, Information Technology, or a related field.
• Foundational understanding of software development concepts and web app development.
• Willingness to learn new technologies and work collaboratively in a team.

Responsibilities

• Assist design, development, and maintenance of web applications using .NET (C#), ASP.NET Core, Python, React, and JavaScript.
• Write SQL queries and stored procedures; assist with database development and data analysis using Microsoft SQL Server.
• Leverage AI-assisted tools (GitHub Copilot, ChatGPT/Codex) to accelerate coding, debugging, and testing.
• Explore AI and automation opportunities to improve applications and workflows.
• Assist integration across Microsoft technologies including Azure and other platforms.
• Collaborate with developers, analysts, and stakeholders to understand requirements and deliver solutions.
• Write clean, maintainable code and participate in code reviews, troubleshooting, and testing.
• Contribute ideas to improve performance and development processes.

Skills

Software development

Web applications

AI-assisted coding

Team collaboration

Problem solving

Education

Currently pursuing Computer Science or related degree

Tools

C#

.NET

Python

JavaScript

React

SQL Server

Azure

GitHub Copilot

ChatGPT/Codex

Job description

Greystone is a private national commercial real estate finance company with an established reputation as a leader in multifamily and healthcare finance, with $13 billion in loan originations in 2025. The firm consistently ranks in the Top 10 for Fannie Mae & Freddie Mac by multifamily loan volume and is the #1* Overall HUD Multifamily and Healthcare Lender in the country. Greystone also ranks nationally as a top affordable housing, seniors housing, and small balance loan lender.

At Greystone, charity is at the heart of who we are and what we do. At Greystone, everything we do is driven by our purpose of improving others’ lives. As we work hard to maintain our ranking as a top national commercial real estate lender, our culture of caring and support is just as important. We don't just say 'Where People Matter' – we lead with this mantra every day to guide our actions and behaviors. Greystone is committed to fostering and preserving a culture of inclusion. Belonging is at the heart of our culture of caring, integrity and excellence and is a driving force behind our entrepreneurial spirit and creativity. We are seeking a motivated Full Stack Engineer Intern to assist with the development of several web applications. You will have the opportunity to work on both front-end and back-end tasks, gaining exposure to the full product lifecycle through agile scrum. This internship offers hands-on experience in building modern web apps, collaborating with cross-functional teams, and contributing to new projects. As an intern, you’ll join a collaborative and dynamic environment where fresh ideas are welcomed, and personal ownership is highly valued. We believe that every interaction, whether with a client, colleague, or partner, should leave a positive impact.

Primary Duties and Responsibilities:

• Assist in designing, developing, and maintaining web applications using Microsoft .NET (C#), ASP.NET Core, Python, React, and JavaScript.
• Write SQL queries, stored procedures, and assist with database development and data analysis using Microsoft SQL Server.
• Leverage AI-assisted development tools (such as GitHub Copilot and ChatGPT/Codex) to accelerate coding, debugging, testing, and problem-solving.
• Explore opportunities to incorporate AI and automation into applications and business workflows.
• Assist with integrating applications across Microsoft technologies, including Azure and other enterprise platforms.
• Collaborate with developers, business analysts, and business stakeholders to understand requirements and deliver solutions.
• Write clean, maintainable code and participate in code reviews, troubleshooting, and testing.
• Contribute ideas for improving application performance, user experience, and development processes.

Experience, Skills, and Abilities Required:

• Currently pursuing a degree in Computer Science, Software Engineering, Information Technology, or a related field.
• Foundational understanding of software development concepts, object-oriented programming, and web application development.
• Strong analytical, troubleshooting, and problem-solving skills.
• Willingness to learn new technologies, ask questions, and work collaboratively in a team environment.

Preferred (Not Required):

• Familiarity with C#, .NET, Python, JavaScript, React, or similar programming languages and frameworks.
• Interest in AI technologies, including generative AI, AI-assisted coding tools, and their practical application in software development.
• Basic understanding of relational databases, SQL queries, and data structures.
• Basic knowledge of Git or other version control tools.Familiarity with REST APIs and frontend/backend application architecture.
• Exposure to Microsoft Azure, Power Platform, Python, or automation technologies is a plus.

Why Join Us?

Gain hands-on experience developing real-world applications using Microsoft's .NET technology stack, SQL Server, React, and Azure. Explore how AI is changing software development and gain practical experience using AI tools to build and improve applications. Work alongside experienced developers, product owners, and business partners to solve meaningful business challenges. Contribute to applications and automation initiatives supporting commercial real estate loan servicing and asset management. Gain hands-on experience with the full software development lifecycle through Agile Scrum methodologies, from understanding business requirements and participating in sprint planning to developing, testing, and deploying software solutions. Join a collaborative team that encourages learning, innovation, and new ideas. Build valuable technical and professional experience while making a meaningful contribution to Greystone's technology initiatives. At Greystone, we believe that finding creative solutions for our clients comes from the collaboration of people with diverse backgrounds and perspectives. We strive to build a work environment that empowers all individuals with opportunities to channel their entrepreneurial spirit.

Greystone is an EEO employer.

*For HUD's 2025 fiscal year ending September 30, 2025.

Based upon combined firm commitments received by Greystone Funding Company LLC and Greystone Servicing company LLC and excludes risk sharing and hospital loans.