Senior Backend Engineer 

We are seeking a skilled and innovative engineer to join our team and drive the advancement of our cutting-edge acceleration technology. In this role, you will play a key part in refining our multi-dimensional indexing implementation for Data Lakehouses, optimizing performance, and enabling next-generation data processing. Collaborating closely with the expert team, you will help develop groundbreaking features that set new industry standards. 

Experience / Skills required: 

Must have: 

• 5+ years of experience in professional software development 
• A Bachelor’s degree in Computer Science or a related field 
• Proficiency in Java, Scala, and Rust, with the adaptability to work in other languages as needed 
• Experience with query engines like Apache Spark, Trino, or emerging ones like DataFusion 
• Strong knowledge of algorithms and data structures. 
• Familiarity with database internals 
• Upper-Intermediate English and better 

Good to have: 

• Experience with Data Lakehouse formats (e.g., Delta Lake, Apache Hudi, Apache Iceberg) 
• Knowledge of storage I/O

Responsibilities: 

• Develop and enhance our indexing technology using Java, Scala, and Rust 
• Build support for open table formats such as Iceberg 
• Maintain and improve product quality by resolving defects and creating robust test cases and frameworks 
• Explore other areas of interest—in a startup, there’s always more to do and learn 

We offer:  

• Competitive salary with the regular review 
• Medical Insurance after 3 months probation period (can be used in Ukraine) 
• Vacation (up to 20 working days) 
• Paid sick leaves (10 working days) 
• National Holidays as paid time off (11 days) 
• Online English courses 
• Accountant assistance and legal support 
• Flexible working schedule, remote, office-based or hybrid format  
• Fully-equipped perfect office space located in the city center (ready for work in blackouts) 
• Direct cooperation with the customer 
• Dynamic environment with low level of bureaucracy and great team spirit 
• Challenging projects in diverse business domains and a variety of tech stacks 
• Communication with Top/Senior level specialists to strengthen your hard skills 
• Online/offline teambuildings 
• Volunteering culture development and support