Senior Software Engineer

The job

LIVE Employer public job feed (private-sector employer) Source: the employer's public careers feed · Data: listed 2026-09-01

Job description

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.

The base salary range of this opportunity is listed below and is determined within a range based on factors including qualifications, location and experience. This allows opportunity for growth and development within the role. The base salary offered is part of a total compensation package.

Explore around this job

Field: Technology Sub-niche: Software engineering All jobs at Alarm.com Jobs in Virginia Jobs in Tysons, VA Tysons city guide Virginia state guide Fairfax County economy

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About the role

This is a — role in the Technology field (Software engineering) at Alarm.com.

We could not match this job title to one occupation in the official wage statistics, so no pay estimate is shown. Pay is not in the source listing; ask the employer for the range and compare in the 240 job niches.

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How to prepare and behave

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The city

The job is in Tysons, VA. Below is what the official statistics say about living and working there.

How Tysons compares. Among the 100 largest places in Virginia, Tysons is #39 by population, #98 for homeownership (#1 = highest), #7 for college degrees (#1 = most), #11 for remote work (#1 = most). Its county, Fairfax County, is #3 of 133 counties for average pay ($114,100).

The place in numbers

Tysons has 28,936 residents (ACS 2020–2024), about 0.3% of the population of Virginia. It covers 4 square miles of land, which works out to roughly 6,785 people per square mile. The median age is 36.5, 6% younger than the state median (36.5 against 39.0). It is a census-designated place: a community the Census Bureau counts as a unit, without a city government of its own, so services such as police, roads and zoning usually come from the county.

Housing

The median gross rent is $2,497 a month (rent plus utilities), 58% above the state median ($2,497 against $1,579). Over a year that is 23.1% of the median household income. US housing guidance treats housing as affordable when it takes 30% of income or less, so the typical household is under that line. The median home value is $640,000, which is 4.9 times the median household income ($129,818). 34.3% of households own their home, 49% below the state average (34.3% against 67.3%). A low ownership share points to a rental-heavy market with more apartments and shorter stays.

Work and pay

The Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area has 3,136,190 jobs in the BLS wage survey, and the median pay across all occupations is $71,060 a year, 39% above the national median ($71,060 against $50,980). The biggest occupation groups are business and financial operations (369,190 jobs, median $105,260); management (319,760 jobs, median $165,010); office and administrative support (290,050 jobs, median $53,250). The area is most specialised in legal (2.6 times) and computer and mathematical (2.2 times), where the share of workers is well above the national share. The best-paying groups with at least 5,000 jobs are legal ($175,070) and management ($165,010). In 2026M09 the unemployment rate of Fairfax County was 3.4%. 73.9% of residents aged 16 and over are in the labour force. The city lies in Fairfax County; its jobs, pay by industry and GDP are on the county page.

Getting around

Among workers, 49.6% drive alone, 4.4% use public transit, 5.4% walk, 34.2% work from home. 15.8% of workers commute 45 minutes or more, 10% below the state average (15.8% against 17.6%). Remote work is more common than in the state as a whole, which widens the set of employers a resident can work for without moving.

People and education

79.3% of adults aged 25 and over hold a bachelor's degree or higher, 88% above the state share (79.3% against 42.2%). 41.5% of residents were born outside the United States, 216% above the state share (41.5% against 13.1%). The poverty rate is 7.9%, 20% below the state rate (7.9% against 9.9%).

Climate

The warmest month is Jul, averaging 78°F (25.6°C), and the coolest is Jan at 31°F (-0.4°C). About 1,117 mm (44 inches) of precipitation falls in a year; May is the wettest month (120 mm) and Jan the driest (65 mm). These values come from NASA satellite-based climatology on a grid of about 50 km, so they describe the wider area, not a weather station in the city.

Nearby cities to compare

Closest cities in this guide: Vienna (2 miles, rent 4% lower); McLean (2 miles, rent 37% higher); Idylwood (3 miles, rent 18% lower); Wolf Trap (3 miles, rent 40% higher). Rent differences are against Tysons; use the Compare tab to put any two cities side by side.

Full guide to Tysons →Virginia guideAll jobs in Tysons

Official links for Tysons

• Census Bureau data profile for Tysons
• Official state website: virginia.gov
• BLS Economy at a Glance: Virginia

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Where to live

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Career paths

We could not match this title to one occupation, so here are the other sub-niches in Technology, where your skills may carry over:

Cybersecurity (713) Data, analytics and AI (3366) Cloud, IT and infrastructure (1040) Product management (836)

Distances

This job has no single city we can place on the map (remote, flexible or unmatched location), so no distance table is shown. Browse all Technology jobs with distances from any of the 20 largest cities.

The employer

Alarm.com is the employer in this listing. See all its open jobs here →

We do not hold headcount or revenue for this employer. Check its careers site and, if it is listed on a stock exchange, its public filings (SEC EDGAR search).

What it is like to work at a company (culture, schedules, benefits) is not in the source data, so we do not describe it. Read the description and ask the questions under "How to prepare".

Other open jobs at Alarm.com

Similar jobs

Same sub-niche: Software engineering

More jobs in Tysons, VA

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FAQ

What is the Senior Software Engineer job at Alarm.com?

A private-sector role in technology (software engineering) listed 69 days ago. The full description is on this page and on the employer's page.

Where is this job?

Tysons, VA.

How do I apply?

Use the "View this job and apply on the employer's page" button. AtiveSite does not receive applications.

How much does it pay?

The listing does not publish pay, and we could not match the title to one official occupation.

What is the cost of living there?

Median rent in Tysons is $2,497 a month and median household income $129,818 (ACS 2020–2024).

How old is this listing?

It was posted on 2026-09-01 (69 days ago). Jobs older than 90 days are not shown.

Are there similar jobs?

Yes: browse software engineering jobs in Virginia.

Sources and terms

• Job data: Alarm.com careers page public feed (listing dated 2026-09-01). The job disappears from this site when it disappears from the source.
• Wages and projections: BLS OEWS (May 2025) and Employment Projections 2025–35.
• City and county figures: Census Bureau ACS 2020–2024, BEA, BLS QCEW and LAUS, NASA POWER climatology; distances from Census Gazetteer coordinates.

AtiveSite is not affiliated with or endorsed by the employer or any government agency, and does not process applications. Verify every detail with the employer before acting.

Sources

• BLS OEWS (wages and employment by occupation, May 2025)
• BLS Employment Projections 2025–35
• BLS Local Area Unemployment Statistics
• BLS JOLTS
• BLS State and Metro Area Employment
• Census Bureau American Community Survey (via Census Reporter)
• BEA GDP by state and Regional Price Parities
• IRS 2026 tax adjustments
• U.S. Department of Labor, minimum wage by state
• Tax Foundation state income tax rates 2026
• USAJOBS
• USCIS
• U.S. Department of State, visas
• NASA POWER climatology
• GeoNames / Census Gazetteer (coordinates)