Senior Software Engineer, Full-Stack

RapidSOS•New York City, NY

19h•$155,000 - $185,000•Remote

About The Position

In the time it takes you to read this job description, RapidSOS will have handled ~1,380 emergencies. At RapidSOS, 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. RapidSOS 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 RapidSOS HARMONY AI engine that delivers this intelligence to those who need it most. Learn more at www.RapidSOS.com . What this role is about: Are you excited to build systems that make a real-world impact at massive scale, powering the real-time data and infrastructure behind mission-critical workflows? At RapidSOS, we create technology that powers smarter operations through real-time data — and, in critical moments, ensures life-saving information is delivered quickly, reliably, and when it matters most. We’re seeking a Senior Software Engineer to build the scalable, reliable backend systems that power the core engine of our B2B platform. While this role is backend-leaning, you’ll own features end-to-end — shaping how they’re built across services, data flows, AI-driven capabilities, and the user experience to deliver seamless, dependable functionality. You’ll collaborate closely with product and engineering teams to evolve a platform used by leading organizations, ensuring our systems are resilient, high-performing, and scalable in the moments that matter most.

Requirements

5+ years of professional backend or full-stack engineering experience with deep expertise in Python and proficiency with React & TypeScript
Experience integrating with RESTful APIs and delivering comprehensive end-to-end solutions in an AWS environment
Experience working with relational and non-relational databases and message bus systems (RabbitMQ, Kafka, AWS SQS / SNS)
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 coding best practices – ability to write clean, maintainable, and testable code
Customer-centric mindset; cares deeply about delivering solutions that enable and delight customers while meeting product goals
Demonstrated expertise in problem solving – from troubleshooting issues to debugging a large codebase
Ability and willingness to collaborate in-person a few times per quarter, or as needed

Nice To Haves

Experience with telephony / VoIP / SIP
Experience with websockets

Responsibilities

Drive the architecture, design, and implementation of new features, leveraging Python and TypeScript
Lead strategic architectural decisions, help drive alignment, and optimize applications for performance, scalability, and accessibility
Use best-in-class software development practices (unit tests, integration tests, performance tests, monitoring, detailed functional specification and test plans) to ensure RapidSOS' products remain highly reliable and fault tolerant
Identify opportunities to assess and enhance current applications, including refactoring code and upgrading technologies used
Collaborate in an agile environment with stakeholders across Engineering, Design, GTM, and Product to develop solutions for RapidSOS products
Leverage modern AI development tools (Claude Code, Cursor or similar) to accelerate delivery and improve code quality
Actively participate in code reviews and standups, sharing knowledge, championing best practices, and contributing to the continuous improvement of team processes
Own meaningful parts of our platform, have an impact, grow with the company

Benefits

The chance to work with a passionate team on solving one of the largest challenges globally
Competitive salary and benefits and equity participation
A dynamic, flexible and fun start-up work environment with a highly talented team

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