.Net Developer - Senior
Confirmed on the employer's own hiring board on Oct 31, 2026. First seen by Alion on Oct 29, 2026.
Investment- ALSO
Key Responsibilities
About Intermedia
Are you looking for a company where YOUR VOICE is heard? Where you can MAKE A DIFFERENCE? Do you THRIVE in a FAST-PACED work environment? Do you wake every morning EXCITED to work with GREAT PEOPLE and create SUCCESS TOGETHER? Then Intermedia is the place for you.
Intermedia has established itself as a leading provider of cloud communications and collaboration tech that allows companies to connect better. We have a strong track record of growth, profitability, and creating an environment where everyone matters. Everyone. While we are fast-paced and admittedly a bit intense, we promise that you won’t be bored. You will find Intermedia is a place where you can indulge your passion for creating and supporting great cloud technology. What’s more, we always look to promote from within and have many employees who have been with us 10, 15, and 20+ years!
Culture at Intermedia is built on teamwork and transparency. We hold each other accountable and always have each other’s back!
About the Role:
We are looking for a .NET Developer to join our Email+ team. In this role, you will design, develop, test, and maintain scalable software solutions that power our email hosting, Microsoft 365 integration, and cloud services. You will work closely with product managers, architects, QA engineers, and fellow developers to build reliable, secure, and high-performance applications used by more than one million hosted mailboxes.
This is an excellent opportunity to work on large-scale cloud services, modernize existing systems, and contribute to products that combine Microsoft Exchange, Microsoft 365, email security, backup, and archiving technologies.
Key Responsibilities
- Design, develop, test, and maintain applications using the .NET platform.
- Build scalable backend services and APIs for cloud-based email and Microsoft 365 solutions.
- Participate in the modernization of existing applications and migration toward modern architectures.
- Collaborate with Product Management, QA, DevOps, and other engineering teams to deliver high-quality software.
- Write clean, maintainable, and well-tested code following engineering best practices.
- Troubleshoot, debug, and resolve production issues.
- Participate in code reviews and contribute to improving development standards and engineering practices.
- Optimize application performance, reliability, and scalability.
- Stay current with emerging technologies, development frameworks, and AI-assisted software engineering practices.
Skills, Knowledge & Expertise
- Bachelor's degree in Computer Science, Software Engineering, or a related technical field (or equivalent practical experience).
- 3+ years of professional software development experience with .NET technologies.
- Strong proficiency in C# and .NET.
- Experience building RESTful APIs and backend services.
- Solid knowledge of ASP.NET Core, an open-source web development framework | .NET Core, MVC, and SQL Server.
- Experience working with HTML, CSS, and JavaScript.
- Understanding of object-oriented design principles and software design patterns.
- Experience with Agile/Scrum development methodologies.
- Strong analytical, troubleshooting, and problem-solving skills.
- Excellent communication and collaboration skills.
Nice to Have
- Experience with Microsoft 365, Microsoft Exchange, or Office 365 APIs.
- Experience with microservices architecture and distributed systems.
- Experience with cloud platforms such as Microsoft Azure.
- Familiarity with Docker, Kubernetes, or other containerization technologies.
- Experience with messaging or streaming technologies.
- Knowledge of email protocols (SMTP, IMAP, POP3, Exchange Web Services, Microsoft Graph API).
- Experience working with monitoring and observability tools.
AI Tools & Modern Development
We encourage engineers to leverage modern AI-powered development tools to improve productivity and code quality. Ideal candidates should have:
- Practical experience using AI-assisted development tools such as GitHub Copilot, ChatGPT, Cursor, or similar solutions.
- Ability to use AI tools responsibly for code generation, debugging, documentation, testing, and refactoring while validating generated results.
- Interest in adopting new AI-powered engineering practices to improve software development efficiency.
Diversity, Inclusion, and Equal Opportunity
We hire, promote, and compensate employees based on their ability to perform their job responsibilities, without regard to race, color, creed, religion, sex, gender, marital status, national origin, ancestry, age, citizenship, physical or mental disability, sexual orientation, or any other basis protected by applicable law (collectively referred to in our Code of Conduct as “Protected Classes”). We do not tolerate employment discrimination in the workplace, and we are committed to making reasonable accommodations for identified disabilities or other limitations as required by all applicable laws. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.