Sr Software Engineer Jobs in Virginia (NOW HIRING)

Senior Software Engineer – Access Control

Are you ready to redefine access control and develop cutting-edge security solutions that make businesses smarter and safer? Do you enjoy leading technical initiatives, mentoring engineers, and solving complex challenges across the full stack? If so, we want you to join our Access Control team as a Senior Software Engineer!

Our mission is to provide businesses with an advanced access control solution that ensures security, simplifies management, and enhances efficiency. Our cloud-based platform enables businesses to manage access control, intrusion detection, and video surveillance seamlessly through Alarm.com's user-friendly web and mobile applications.

With features like multi-site management, swipe to disarm, expiring access, access history reports, and bulk user management, our solution is designed to meet the evolving needs of modern businesses. Smarter Access Control is not just about security—it's about delivering a comprehensive, integrated system that improves operational efficiency.

As a Senior Software Engineer, you will play a key role in designing, developing, and optimizing robust access control solutions. You'll collaborate with cross-functional teams, mentor junior engineers, and drive technical excellence across our platform. This is an opportunity to lead impactful projects, work with the latest technologies, and shape the future of security.

Responsibilities

• Design and develop full-stack software solutions across a variety of platforms and technologies.
• Lead technical projects, making architectural decisions and ensuring scalability, security, and performance.
• Research, evaluate, and apply new technologies to solve complex engineering challenges.
• Take part in the entire development lifecycle, from requirements gathering to deployment.
• Balance speed and robustness—know when to iterate quickly and when to build scalable, maintainable solutions.
• Collaborate with cross-functional teams, including product managers, device engineers, and other software teams.
• Mentor junior engineers, fostering technical growth and knowledge-sharing within the team.
• Contribute to a culture of innovation by bringing new ideas and technical improvements to the table.

Requirements

• Bachelor's in Computer Science, Computer Engineering, or a related field, or equivalent work experience.
• 5+ years of professional software development experience.
• Strong object-oriented programming skills; experience with C#/.NET is a plus.
• Experience with database design and development (SQL Server preferred).
• Proficiency in developing backend services and APIs.
• Experience with JavaScript frameworks (Ember.js preferred).
• Experience with unit testing, integration testing, and CI/CD pipelines.
• Knowledge of distributed systems, event-driven architecture, and messaging technologies (Kafka is a plus).
• Experience working with IoT, hardware, or embedded systems is a plus.

Why Work for Alarm.com?

• Collaborate with outstanding people – Work alongside talented engineers who are passionate about innovation and problem-solving.
• Make an immediate impact – Own projects that have a direct impact on businesses using our security solutions.
• Work with real-world IoT devices – See your code in action with the numerous access control and security devices we integrate with.
• Be empowered – Take ownership of features, drive technical decisions, and build best-in-class products.
• Work with the latest technologies – Our tech stack includes C#, .NET, SQL Server, Kafka, Ember.js, and mobile applications.
• Enjoy a strong team culture – We prioritize collaboration, professional growth, and fun, with events like hackathons, team events and company-wide celebrations.

At Alarm.com, we believe in the power of technology to make security smarter and more intuitive. If you're excited about leading innovative projects and working on mission-critical security solutions, we'd love to hear from you!

Please note that sponsorship of new applicants for employment authorization, or any other immigration-related support, is not available for this position at this time.

WHY WORK FOR ALARM.COM?

• Collaborate with outstanding people: We hire only the best. Our standards are high and our employees enjoy working alongside other high achievers.
• Make an immediate impact: New employees can expect to be given real responsibility for bringing new technologies to the marketplace. You are empowered to perform as soon as you join the Alarm.com team!
• Gain well rounded experience: Alarm.com offers a diverse and dynamic environment where you will get the chance to work directly with executives and develop expertise across multiple areas of the business.
• Community and Camaraderie: One of our core values is to 'Keep It Fun,' which to us means fostering a strong sense of community. Our culture is built on collaboration and connection, where we celebrate our successes and believe that a positive, engaging environment is key to doing our best work.
• Alarm.com values working together and collaborating in person. Our employees work from the office 4 days a week.

COMPANY INFO

Alarm.com is the leading platform for intelligently connected properties. Millions of homeowners and businesses rely on Alarm.com's technology to secure, monitor, and manage their environments from anywhere. Our comprehensive suite of solutions—including security, video surveillance, access control, active shooter detection, intelligent automation, energy management, and wellness—is delivered exclusively through a trusted network of thousands of professional service providers and commercial integrators across North America and worldwide. Alarm.com's common stock is traded on Nasdaq under the ticker symbol ALRM. Alarm.com delivers serious security for serious people.

For more information, please visit www.alarm.com.

COMPANY BENEFITS

Our total rewards package is designed to support you holistically—in your health, your finances, and your life outside of work. The package includes medical plans with company subsidies, a Health Savings Account (HSA) with a company contribution, and a 401(k) with an employer match. We encourage a healthy work-life balance with paid vacation that increases with tenure, paid holidays, wellness time, and paid maternity and bonding leave. To complete the package, we also provide company-paid disability and life insurance, all within a collaborative and casual work environment.

Alarm.com is an Equal Opportunity Employer

In connection with your application, we collect information that identifies, reasonably relates to or describes you ("Personal Information"). The categories of Personal Information that we may collect include your name, government-issued identification number(s), email address, mailing address, other contact information, emergency contact information, employment history, educational history, criminal record, and demographic information. We collect and use those categories of Personal Information about you for human resources and other business management purposes, including identifying and evaluating you as a candidate for potential or future employment or future positions, recordkeeping in relation to recruiting and hiring, conducting criminal background checks as permitted by law, conducting analytics, and ensuring compliance with applicable legal requirements and Company policies. By submitting your application, you acknowledge that we may retain some of the personal data that you provide in your application for our internal operations such as managing our recruitment system and ensuring that we comply with labor laws and regulations even after we have made our employment decision.

Notice To Third Party Agencies:
Alarm.com understands the value of professional recruiting services. However, we are not accepting resumes from recruiters or employment agencies for this position. In the event we receive a resume or candidate referral for this position from a third-party recruiter or agency without a previously signed agreement, we reserve the right to pursue and hire those candidate(s) without any financial obligation to you. If you are interested in working with Alarm.com, please email your company information and standard agreement to RecruitingPartnerships@Alarm.com.