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Senior Software Engineer At Noonlight, an Alarm.com company, our mission is to protect and comfort people so they can live freely. What began as an app focused on helping people walk safely from point A to point B, is now a suite of emergency response APIs backing some of the smartest home, health, lifestyle, and commercial security products in the market. We are looking for an experienced full-stack engineer to leverage their expertise to enrich our B2B product experiences. As a Sr. Software Engineer, you will be responsible for building new features, identifying areas for improvement in our lifesaving APIs and web applications, and improving developer experience. What Excites You: Taking ownership of products and features, from ideation to delivery Coming up with new ways to leverage technology to keep people safe Disrupting the expensive and outdated professional monitoring industry Saving people, pets, and property in real life emergencies What Excites Us: Willingness to test, learn, and improve in quick cycles Passion for helping people Strong sense of ownership, work ethic, and self-motivation Exceptional problem solving/analytical skills Experience leading projects from start to finish, including working with product managers to proactively identify and resolve potential barriers What can you do for Noonlight? Independently lead implementation of large-scale projects at all levels of the software development lifecycle Develop and maintain high-quality, secure, and stable REST APIs using Node.js, Express/Fastify, MongoDB, and API gateways in a microservice architecture Develop and maintain high-quality web applications used by 24/7 dispatchers to respond to emergencies in React.js Use AI-powered coding tools (e.g. GitHub Copilot, Claude Code, etc.) to improve development experience, efficiency, and code quality Practice technical leadership by building and maintaining best-practices, up-to-date architecture, and developer-experience standards for the rest of the team; stay current on new technologies to evaluate and make recommendations as necessary Be a collaborator across the whole company; work with product, customer success, and leadership to ensure good decisions are being made Engage in the research, evaluation, and application of new technologies and methodologies in the safety-related space to solve challenging product goals Propose, build, and maintain internal tools and infrastructure that drive and support business goals and business teams Bring your ideas! We want our engineers to collaborate on product development, not blindly build to a spec Requirements: Bachelor’s in Computer Science, Computer Engineering, a related field, or equivalent work experience 7+ years of professional software development experience Experience mentoring other engineers Strong programming skills in front-end and back-end development Experience leveraging AI and agentic coding tools for faster, higher-quality software development Experience with database design and development Nice-to-haves: Experience working with high-availability, high-throughput services Experience with external-facing APIs and/or third-party platform integrations Experience leading engineering teams Experience with JavaScript development using established JS frameworks Experience in IoT, smart home, security monitoring, or safety-related industries 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. COMPANY INFORMATION Noonlight combines advanced technology with real humans to protect and comfort people so they can live freely. Launched in 2013 as a mobile application, Noonlight has since grown into a connected safety platform—partnering with products and services to enable modern and affordable 24/7 professional sensor monitoring, v