Back-End Engineer

Back-End Engineer 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 . Our office is located in the vibrant area of Krakow, at Aleja Pokoju 18. We offer a dynamic hybrid work model, encouraging you to join us in the office to collaborate, connect, and contribute to our team's success. Summary: As a Software Engineer within our Server Engineering team, you will work collaboratively with the engineering team as well as the Mobile Operator to help build a 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 strive for a deep understanding of the core technologies that are being used while building redundancy and establishing best practices. Responsibilities: We've developed a platform that integrates with mobile client side library and apps along with mobile network carrier systems. The Server Engineer would be responsible for further developing, securing, and scaling the backend infrastructure to support the platform in order to handle millions of concurrent API calls. Please note the following: We are looking for developers that be willing to switch to our tech stack Scala/Lua from any other Back-End language. We are only considering candidates who are currently in Krakow or willing to relocate there. Requirements: 3+ years of work experience, including programming experience in Java/ any JVM language / PHP / C++ / Scala/ Lua BA/BS in Computer Science or related technical field is a must 3+ 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 Benefits: - Yearly bonus - Paid lunches - MultiSport card - Private medical insurance - Reimbursement of accountant assistance expenses - ZUS coverage - Paid sick leaves - 21 working days of vacation, public holidays - Training and workshops. About: At LotusFlare, we attract and keep amazing people by offering two key things: Purposeful Work: Every team member sees how their efforts make a tangible, positive difference for our customers and partners. Growth Opportunities : We provide the chance to develop professionally while mastering cutting-edge practices in cloud-native enterprise software. From the beginning, our mission has been to simplify technology to create better experiences for customers. Using an “experience down” approach, which prioritizes the customer's journey at every stage of development, our Digital Network Operator™ Cloud empowers communication service providers to achieve valuable business outcomes. DNO Cloud enables communication service providers to innovate freely, reduce operational costs, monetize network assets, engage customers on all digital channels, drive customer acquisition, and increase retention. With headquarters in Santa Clara, California, and five major offices worldwide, LotusFlare serves Deutsche Telekom, T-Mobile, A1, Globe Telecom, Liberty Latin America, Singtel, and other leading enterprises around the world. Website: www.lotusflare.com LinkedIn: https://www.linkedin.com/company/lotusflare Instagram: https://www.instagram.com/lifeatlotusflare/ Twitter: https://twitter.com/lotus_flare Department Server Engineering Role Back-End Software Engineer Locations Krakow, Poland Remote status Hybrid