Senior Full-Stack Engineer
Chicago, IL

WHO WE ARE:  SwipeSense is a healthcare technology company. Our mission is to eliminate Hospital Acquired Infections, a leading cause of death in the United States. We design and market the only comprehensive hand-hygiene compliance monitoring solution which combines sensor networks with wearable technologies to provide a complete, long-term and cost-effective solution for healthcare institutions.

SwipeSense is a high-growth venture backed company headquartered in Chicago, IL

WHO WE NEED:  SwipeSense handles large-scale distributed IoT hardware networks that produce massive amounts of real-time sensor data. We’re looking for a full-stack engineer who is excited about designing and building at scale with the future of big data solutions in-mind. At SwipeSense, big data means BIG data. We’re not talking about millions of data points and gigabytes of storage; we’re tackling billions of data points and terabytes of data per day with the eventual goal of handling petabyte-scale data workloads. At SwipeSense, we like to live on the bleeding edge – we are always questioning and rebuilding core components of our platform to meet the scaling demands of the future. As a member of a small team, your ideas will carry weight; you should have strong opinions around what you’re building and how it’s being built.

PRIMARY ROLE: Conceptualize and develop components of the SwipeSense cloud (AWS) stack to collect streaming sensor data and display hospital compliance data in real-time. This role has wide breadth, and will tackle a variety of technologies – SQL optimization on the database backend, supporting our Ruby on Rails CMS, API design and implementation (we use JSON API),  algorithm development, and hacking on our customer facing analytics app - a React SPA.


  • Share in the evolution and design of the data ingest platform by sharing, prototyping, and building new technologies to optimize or completely replace existing platform components.
  • Assist with algorithm development to transform real-time IOT sensor data into customer insights.
  • Develop and maintain portions of the Ruby on Rails API along with its various background processing tasks and job queues.
  • Develop scalable technical solutions that respond well to high-concurrency workloads.
  • Develop in React on the frontend to display real-time data in an elegant fashion through an intuitive SPA.
  • Provide thorough regression tests and alerting procedures to provide resiliency to new features.
  • Optimize existing code to lower object allocations and improve throughput.


  • 5+ years of related full-time experience.
  • Bachelors in Computer Science or Computer Engineering or equivalent experience.
  • Strong SQL-fu i.e. comfortable writing pure SQL queries with complex joins and conditions while considering transaction isolation levels and concurrency.
  • Experience with writing performant, optimized code for large scale applications (N+1 queries should give you conniptions)
  • Experience with MVC frameworks and an understanding of RESTful APIs.
  • A focus on consistent code style, full-coverage testing, team coding conventions, and separation of concerns.
  • Strong experience in HTML5, CSS3, and Javascript (ES2016 preferred). Experience with modern SPA frameworks like React, AngularJS, Ember, Backbone, etc. is a big plus.
  • Experience working in an agile development environment.
  • Comfort in developing in a terminal-heavy Linux/Mac environment.
  • Git for version control and GitHub for pull-request based workflow.
  • Excellent communication skills - plays well with others, ping pong skills optional.


  • Familiarity with AWS as a platform along with its various services.
  • Experience contributing to shared devops concerns such as CI servers, and automated deployment.
  • Familiarity with the Hadoop ecosystem and related tools.
  • Familiarity with container-based infrastructure with Docker.
  • Contributions to open-source projects.
  • Experience with data visualization and analytics.


If you’ve ever contributed to an open-source project on GitHub, you’ll be right at home at SwipeSense.

  • Git/GitHub
  • PivotalTracker
  • Slack
  • CircleCI for continuous integration and deployment
  • SumoLogic for log analysis, alerting, and metrics

Please note: position is full-time, at our Chicago headquarters. Must be local or willing to relocate. Must be a US Citizen, or a foreign citizen with required work visa. M/F/D/V

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