Senior Software Engineer, Full-stack

New York City (Remote) or Boston (Remote)

In the time it takes you to read this job description, Rapid

SOS will have handled ~1,380 emergencies.

At Rapid

SOS, we are committed to using technology to build a safer, stronger future and working together to save lives. We’re in an exciting phase of growth, welcoming new members from across the globe to our mission‑driven, ambitious, and inclusive team. Our work is founded on our values of elevating purpose
, inventing tomorrow
, delivering with urgency
, serving with integrity
, and winning together
, all of which support a company culture where people can innovate, collaborate, grow, and, above all, make an impact.

Rapid

SOS is the leading public safety AI company that unlocks mission‑critical intelligence for first responders and security teams – enabling faster, smarter and more accurate emergency response. Real‑time data from the world’s largest safety network of 700M+ devices, 200+ global enterprises, and 23,000+ federal, state and local agencies fuels the Rapid

SOS HARMONY AI engine that delivers this intelligence to those who need it most. Learn more at

We’re looking for a Senior Full‑Stack Software Engineer to lead the development of mission‑critical features for our public safety platform, owning solutions end‑to‑end from intuitive user experiences to the services and architecture that power them. You’ll build high‑performing, scalable, and reliable systems, shape architectural strategy, mentor junior engineers, and collaborate cross‑functionally to deliver seamless, data‑informed user experiences that help first responders act when every second counts.

If you thrive in a fast‑paced, collaborative, mission‑driven environment and are excited about leveraging cutting‑edge technologies to make a tangible impact where every second matters, this is your opportunity to help shape the future of public safety!

• Drive Full‑Stack Development: Lead the architecture, design, deployment, and implementation of new features for our public safety product(s), leveraging React, Typescript, and Python.
• Strategic Architectural Leadership: Lead strategic architectural decisions, drive technical alignment, and optimize applications for peak performance, scalability, accessibility, and the successful implementation of AI capabilities.
• Engineer Intuitive UX: Maintain and develop intuitive, user‑centric interfaces for public safety systems, balancing aesthetics with practical interaction design, with a focus on leveraging AI to enhance user workflows.
• Enhance and Modernize: Proactively assess and enhance current applications, including refactoring code and upgrading core technologies.
• Ensure Product Reliability: Implement best‑in‑class software development practices (unit/integration/performance tests, monitoring, detailed specs) to guarantee products are highly reliable and fault‑tolerant to operate in any emergency.
• Collaborate and Deliver: Work in an agile environment with stakeholders across Engineering, GTM, Design, and Product to develop impactful solutions, championing the use of AI to transform public safety.
• Champion Best Practices: Actively participate in code reviews and standups, sharing knowledge, mentoring peers, and contributing to the continuous improvement of team processes.

• 5+ years of professional full‑stack engineering experience with 3+ years of experience with Type Script, React, and modern CSS frameworks and libraries
• Proficiency with ideally Python – proficiency with Go, Node.js, Rust, Java, C++/C or a similar language will be considered with willingness to learn Python
• Experience integrating with RESTful APIs and delivering comprehensive end‑to‑end solutions in a cloud‑based environment
• Ideally has experience building AI‑driven features or using AI tools to enhance acceleration of development, and is proactive about leveraging emerging technologies
• Strong communication and interpersonal skills; is a team player with a positive attitude
• Highly self‑motivated; ability to adapt and learn quickly in a fast‑paced environment with a strong sense of ownership
• Strong proficiency in…