We are looking for developers who are open to transitioning to our tech stack (Scala/Lua) from other JVM languages.Hybrid (3 times per week with flexible working hours) Office location: Krakow, Aleja Pokoju 18 We don't have a fully remote working option. Requiremenets: 2+ years of work experience, including programming experience in Java/ any JVM language / PHP / C++ / Scala/ Lua. 2+ years of experience building secure scalable web services Experience with distributed systems Experience with RESTful services Good understanding of network stack and HTTP protocol Experience with concurrency, multithreading, or asynchronous programming Understanding of data modeling in SQL and/or NoSQL environment Experience with (any combination of) AWS, Redis, Kafka and Cassandra would be a plus

BA/BS in Computer Science or related technical field or equivalent practical experience would be a plus.

Position Summary:As a Software Engineer within our Server Engineering team, you will work collaboratively with the engineering team as well as Mobile Operator’s to help build network stack to support millions of users. You come from a system or development background (or are comfortable in both areas). You are self-directed and have the ability to track solutions from design through implementation, owning every step along the way. We offer: Flexible hybrid working model Yearly bonus Paid Lunches Private Medical Insurance Multisport card Company covers accountant assistance expenses ZUS Coverage Unlimited sick leaves 21 working days of vacation, public holidays Trainings and workshops. About us:LotusFlare is a provider of cloud-native SaaS products based in the heart of Silicon Valley. Founded by the team that helped Facebook reach over one billion users, LotusFlare was founded to make affordable mobile communications available to everyone on Earth.Today, LotusFlare focuses on designing, building, and continuously evolving a digital commerce and monetization platform that delivers valuable outcomes for enterprises. Our platform, Digital Network Operator® (DNO™) Cloud, is licensed to telecommunications services providers and supports millions of customers globally.LotusFlare has also designed and built the leading eSIM travel product - Nomad. Nomad provides global travelers with high-speed, affordable data connectivity in over 190 countries. Nomad is available as an iOS or Android app or via getnomad.app. Website: www.lotusflare.com LinkedIn: https://www.linkedin.com/company/lotusflare Instagram: https://www.instagram.com/lifeatlotusflare/  Twitter: https://twitter.com/lotus_flare