Senior Developer​/Data Engineer; PySpark & Distributed Systems

We have been doing cutting edge engineering work for Silicon Valley of the U.S. We develop software solutions, algorithms, and innovations to enable reliably fast broadband and Wi-Fiinternet connectivity to consumers everywhere. Software engineers considered for this position will be developing backend applications on the server side and have an opportunity to make asignificant impact at a fast-growing company.

We are looking for a Java software developer to play an influential role in the development of our Cloud product suite, which is used by network operators like Telefonica to manage 100 million of Internet lines and home Wi-Fi around the world.

The right candidate will be an enthusiastic,hands-on engineer, and will also be experienced with the entire software engineering life cycle
-from requirement analysis, architecture, design, development, code review, quality assurance to deployment. You will be working in a dynamic and continuous learning environment, with highly cooperative colleagues, and you will feel a part of a highly skilled technical community.

• You will help plan, design, and develop and test software systems used in production systems managing several millions of subscribers' homes
• You will be working with a strong development team concentrated mainly in Spain and Turkey but also with US
• You will be participating in weekly scrums and team meetings

• B.Sc. or M.Sc. degree in CS / EE or any related field

• Good command of English
• Over 5 years of Server-side programming experience focusing on large-scale distributed cloud-based systems
• Hands-on experience with Python and PySpark is preferred.
• Solid technical foundation (algorithms, data structures, database, unit testing) and problem-solving skills
• Expert knowledge of Spark SQL (PySpark) and Data Frames, avoiding anti-patterns like row-level iteration
• Deep understanding of DAG execution, shuffling, data skew, and partitioning to build scalable distributed systems
• Ability to develop logic within object-oriented frameworks using abstract base classes and centralized configurations
• Foundational knowledge of Java for JVM-level troubleshooting and performance tuning within the Spark engine
• Strong experience with Java is a plus

• Work with multiple teams across time zones on cross-functional areas with complex requirements and dependencies
• Highly motivated and passionate in delivering results
• Strong communication skills and ability to grasp complex product requirements, technical concepts and standards
• Write highly reliable and maintainable code
• Ability to troubleshoot through complex issues involving multiple internal and external modules/teams
• Able to scope effort with accurate estimates
• Able to work independently- starting from architecting, designing, implementing, maintain a feature from start to end
• We offer competitive salaries based on USD
• Full remote working depends on the project and will be discussed at interviews
• Please send your CV to  if interested