Senior Full-Stack Software Engineer

1w1 week ago

RapidSOS

New York City, US · Full-time · $155,000 – $185,000

About this role

In the time it takes you to read this job description, RapidSOS will have handled ~1,380 emergencies. We are committed to using technology to build a safer, stronger future and working together to save lives. Our values of elevating purpose, inventing tomorrow, delivering with urgency, serving with integrity, and winning together support a culture of innovation, collaboration, growth, and impact.

RapidSOS is the leading public safety AI company unlocking mission-critical intelligence for first responders. Real-time data from 700M+ devices, 200+ enterprises, and 23,000+ agencies powers the HARMONY AI engine. We seek a Senior Software Engineer to build scalable backend systems for our B2B platform core.

Own features end-to-end across services, data flows, AI-driven capabilities, and user experience. Drive architecture, design, and implementation using Python and TypeScript. Collaborate closely with product and engineering teams in an agile environment with Design, GTM, and Product stakeholders.

Leverage modern AI tools like Claude Code or Cursor to accelerate delivery and improve code quality. Ensure systems are resilient, high-performing, and scalable in critical moments. Own meaningful parts of the platform, participate in code reviews and standups, and grow with the company.

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 like RabbitMQ, Kafka, AWS SQS/SNS
Experience building scalable, reliable backend systems at massive scale
Proficiency in owning features end-to-end including services, data flows, and AI capabilities
Familiarity with best practices for high availability, fault tolerance, and performance optimization

Responsibilities

Drive the architecture, design, and implementation of new features leveraging Python and TypeScript
Lead strategic architectural decisions, drive alignment, and optimize applications for performance, scalability, and accessibility
Use best-in-class software development practices including unit tests, integration tests, performance tests, monitoring, and detailed specifications
Identify opportunities to assess and enhance current applications, including refactoring code and upgrading technologies
Collaborate in an agile environment with stakeholders across Engineering, Design, GTM, and Product
Leverage modern AI development tools like Claude Code or Cursor to accelerate delivery and improve code quality
Actively participate in code reviews and standups, sharing knowledge and championing best practices
Own meaningful parts of the platform and grow with the company

Benefits

Join a mission-driven, ambitious, and inclusive team welcoming members from across the globe
Work on technology powering real-time data for life-saving emergency responses
Innovate, collaborate, and make real-world impact in an exciting growth phase
Contribute to a culture elevating purpose and inventing tomorrow