Senior Principal Software Engineer

At Evolv, we’re focused on reinventing physical security to help protect people and facilities by fusing innovations across hardware, software, and data disciplines.

As Senior/Principal Software Engineer, you will play a central role in the design and end-to-end development of high-performance platform components architected for re-use in evolving customer use cases. You will recommend technologies and make design choices with data as a guide, planning for future scale and performance requirements. You will implement best practices and coordinate development infrastructure, overseeing version control, QA, testing, code reviews, etc. As one of the key contributors on a small, focused team, you will shape the technical future for Mosaiq as we seek to make the world a better place.

**The challenges that make this job interesting** * Reliability – How do you architect a distributed human-machine system whose reliability must be near perfect in use cases beyond the current state-of-the-art for computer vision and machine learning? * Latency – How do you manage shifting demand, task difficulty, and latency requirements when marshaling human inputs alongside machine intelligence in real-time? * Operations – How do you build the infrastructure, interfaces, and integrated software automation to efficiently manage a distributed workforce of thousands and harness human intelligence in real-time?

* You have experience building systems for flexibility, robustness, and scale. * You have expertise in full-stack web development (e.g., HTML5, JS, Redis, Memcached, MySQL, MongoDB). * You have experience in agile languages/frameworks (e.g., Scala/Play, Groovy/Grails, Ruby/Rails). * You have expertise in asynchronous and event-based technologies (e.g., RabbitMQ, Akka, Kafka, Lambda). * You are familiar with public Infrastructure as a Service (IaaS) cloud products (e.g., AWS, GCE, Azure). * You are familiar with cloud security best practices including web stack vulnerabilities. * You are familiar with crowdsourcing (e.g., Amazon Mechanical Turk, Crowdflower). * You are familiar with computer vision, machine learning. * You have experience building highly available and resilient systems, from base infrastructure through to the application. * You have experience in the complete software development lifecycle, from putting in place tools and policies that enable your team to function efficiently, to designing, building, testing, and shipping state-of-the-art software solutions to customers. * You have expertise in practical aspects of Scrum or other Agile methodologies. * You have 5+ years experience in software development and 3+ years experience designing, architecting, and engineering high-performing SaaS applications. * You have a Bachelors or Masters degree in Computer Science, or equivalent experience.