**Who are Opensignal?**Opensignal, a mobile analytics company, is the global standard for measuring real-world mobile network experience. Using billions of measurements collected 24/7 from tens of millions of smartphones, we analyze real-world mobile network experience at the largest scale and frequency in the wireless industry. We believe measuring how the network performs directly through usersâ eyes is key to building better wireless networks. Our insights are used across the industry by mobile operators, telecoms regulators, equipment manufacturers and analysts. We have done business across six continents and have driven press headlines in 80 countries, in an industry impacting the lives of billions around the world.Founded in 2010, Opensignal is a high-growth global company harnessing the power of mobile technologies and big data analytics to redefine how the mobile industry measures network performance. Weâre part of the Global Telecoms âPower 100â, TechCity Future Fifty, and backed by an impressive portfolio of investors.We're headquartered in London, UK, where youâll find most of our employees, who we like to call 'Opensignalers', but the teams you'll work with are global. A truly international team, our âOpensignalersâ work across four continents, and represent over 25 nationalities.Find out more by visiting our website [https://www.opensignal.com/\](http://).**Purpose of the role**Opensignal market insights or analytics solutions are powered by data coming from millions of devices, through connectivity tests performed on Android and iOS devices, in realistic conditions. To provide the most accurate insights, we need a large amount of data from both mobile platforms.We are currently maintaining two iOS applications: OpenSignal, providing technical network information to users, live average speed, video streaming quality, or coverage maps. And Meteor, where speed tests results are translated into real life experience ratings for popular apps, aimed at a less technical audience. Both of these apps are powered by our network testing SDK, that we continuously improve to provide as rich a dataset to our analysts as possible.Over the coming months, we have an exciting roadmap of new features we are looking to build into both apps, with the aim of providing more information to our users, as well as grow our sample size and produce better reports. To deliver this roadmap, we need help â we need you!Our Engineering function is organised using a variation of the âSpotifyâ Squad Model: you will be joining our âData Acquisition Squadâ, a cross-functional team containing all the skills to deliver our goals from A to Z, and as a member of our âMobile Chapterâ, which groups all our mobile developers. The mission of the Data Acquisition Squad is to collect as much good quality connectivity information as possible from real life devices. We then pass it on to other Squads, whose data scientists and data engineers work together to provide compelling Metrics and Awards, as seen for example in this recent report covering the Netherlands: https://www.opensignal.com/reports/2020/03/netherlands/mobile-network-experienceWithin the Data Acquisition Squad, you will be working alongside another iOS Engineer, 4 Android Engineers, a Data Scientist, a Data Engineer, a QA Engineer, and the Squad Lead, collaborating with wider colleagues from the Design, Product & Programme Management teams, who support us on a daily basis. We are a multi-cultural team â with as many nationalities as we have team members! Most of the team is based in our London HQ, with a few members working remotely.We organise our work following the Agile principles (mostly!): we run 2-week sprints, with daily stand-up, retrospectives, demos, and planning meetings. Tech wise, our code is on GitHub, and we use Jira for task management. Jenkins runs our CI.