Senior Software Engineer, Backend

RapidSOS•Boston, MA

10d•$155,000 - $185,000•Remote

About The Position

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. This role is about building systems that make a real-world impact at massive scale, powering the real-time data and infrastructure behind mission-critical workflows. RapidSOS creates 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 focused on backend engineering, you’ll shape how core services, APIs, data flows, and AI-driven capabilities are designed and built to deliver seamless, dependable functionality at scale. 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 experience with deep expertise in Python
Strong experience building asynchronous, event-driven systems using message bus technologies such as RabbitMQ, Kafka, SQS, etc.
Experience integrating with RESTful APIs and delivering comprehensive end-to-end solutions in an AWS environment
Experience working with relational and non-relational databases
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
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