Your Mission As a Senior Backend Engineer - Platform at Adsquare, you are building an ever-growing web based product and are responsible for our distributed backend systems together with highly skilled tech professionals. By creating and running the fundamentals for products like audience targeting and proximity targeting you will enable internal teams to reach their goals with intuitive tools and APIs to easily build and activate custom audience segments for any channel in a privacy-friendly way. In this role you will: Work in a self organized agile team with high level of autonomy and you will actively shape your teams engineering culture Design and build solutions based on microservices using containers Design and build highly scalable solutions in AWS and provision them using Terraform Share your knowledge with the team Desired Background You have significant experience with Java 11/17 and Kotlin is a big plus You have significant experience in building rest-full services using Spring Boot You are used to work in cross-functional agile teams You have a proven track record of delivering backend heavy software projects from prototype to value generating product Experience with Apache Spark using Scala is a very welcome plus English is our main (natural) language, Polish or German are a plus Our Software Stack Java 11/17 and Kotlin, Angular, Spring ( Boot, Config, Cloud), Spark, AWS (Lambda, SQS, SNS, EKS), Terraform, MongoDB, PostgreSQL, RabbitMQ, Kubernetes, GitLab, Gradle, Spark. Why us? On top of a competitive package… We are open to flexible work models: we work on a hybrid mode and remotely To encourage education and professional growth, we offer an individual yearly budget of 1,200€ You are entitled to 30 vacation days per year We offer BVG company ticket, JobRad bike leasing, Urban Sports Club membership, company pension scheme We care about your mental health and provide you with coaching and counseling sessions through the collaboration with the Fürstenberg Institut Regular team events and company events organised by our People team (Trust us, they know how to throw a party) We equip you with the latest hardware and provide you with all the tools you need to thrive About us Adsquare is the global audience & location intelligence company making marketing a whole lot smarter. With eight offices around the world we are a truly international company but one united team working towards our vision: empowering companies to accelerate business growth by staying at the forefront of data-driven marketing. We are pioneers in advertising and data. We were born mobile, before it was a necessity, and have pioneered data-driven advertising in display and now DOOH. We have the smartest people, working with the best tech, so we can drive the pace of change. We are visionaries. We see a better way for marketers and are doing everything we can to make that a reality. We believe in innovation and the power of technology. We believe in constantly improving what we’re doing because the work is never done. We believe in what we do and rise to meet our own high standards. If there’s a problem, we fix it, humbly and without fuss or delay. Although our technology is best-of-breed, we are unassuming and modest in our approach. We are passionately candid, both with each other and with our clients. We take the time to explain our approach to their problem, confident there is nothing to hide. We are consistent and true to our word. We don’t take shortcuts but focus on being our clients’ most reliable partner. We make promises - and we keep them. As a result, clients enjoy spending time with us, because we are good people.