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April 8, 2026
Senior • Remote
7,000 - 8,000 USD
Krakow, Poland
N-iX is looking for a Lead Backend (Scala) Engineer to join our team.
Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Lead Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers.
Responsibilities:
Developing scalable backend services
Designing complex database solutions
Designing fast, scalable, and responsive APIs
Day-to-day work with AWS
Working in cross-functional teams
Ready to take ownership and independently drive topics
Requirements:
At least 6+ years of hands-on coding experience
Strong expertise with Scala is a must.
Experience with Java and Spring Boot.
Experience with Object-Oriented/Functional Programming
Experience in designing fast, scalable, and responsive APIs
Experience developing cloud-native apps using AWS
Experience with SQL and NoSQL (DDB) databases
Experience with Kafka
Good communication skills (fluent English, at least Upper-Intermediate)
Nice-to-Have:
Experience with Search databases - ElasticSearch (using it as a search engine);
Frontend experience - JavaScript or Typescript
DevOps Experience - DataDog, Opsgenie, etc.