
Overview
About Leapfrog
Leapfrog is on a mission to be a role model technology company. Since 2010, we have relentlessly worked on crafting better digital products with our team of superior engineers. We’re a full-stack company specializing in SaaS products and have served over 100 clients with our mastery of emerging technologies.
We’re thinkers and doers, creatives and coders, makers and builders— but most importantly, we are trusted partners with world-class engineers. Hundreds of companies in Boston, Seattle, Silicon Valley, and San Francisco choose us to gain speed, agility, quality, and stability, giving them an edge over their competitors.
About the role
We are looking for a skilled and experienced C#/.NET Developer with a strong understanding of Object-Oriented Programming (OOP), Data Structures, and Algorithms (DSA). The ideal candidate should have hands-on experience in building scalable, high-performance applications using the Microsoft tech stack.
Develop and maintain high-quality .NET applications using C#
Design, code, test, and deploy scalable software solutions
Collaborate with cross-functional teams to define and deliver new features
Ensure code quality through unit testing, code reviews, and best practices
Optimize applications for performance and scalability
Debug and resolve technical issues as they arise
Bachelor’s degree in Computer Science or related field5+ years of experience in software development using C#/.NET
Solid understanding of OOP principles and software design patterns
Strong knowledge of DSA and problem-solving techniques
Experience with .NET Core/.NET Framework, Web APIs, and RESTful services
Familiarity with SQL Server or other relational databases
Experience with version control systems like Git
Good communication and analytical skills