Evil Martians was hired by Gusto for Sidekiq at scale

We transform growth-stage startups into unicorns, build developer tools, and create open source products. Offices in New York, Porto, and Osaka. Clients trust us to be the core technical team behind their startups, delivering all elements of successful product work: user interface design backed by analytics, agile software development, infrastructure administration, and service reliability. We pay extra attention to mentoring, making sure that the practices we bring in are adopted by the internal team before our collaboration is over. Our projects typically span years, not months. See more at https://evilmartians.com/ and check out our blog at https://evilmartians.com/chronicles.