Вакансія Senior Big Data / Java Engineer

Skills

• Java
• Scala
• JMM
• UML
• HBase
• Cassandra
• Kafka

Опис вакансії

SE Ranking is the company standing behind this powerful and intuitive SEO platform, which has been trusted by over a million businesses, agencies, and SEO professionals since 2013 and we are looking for a highly motivated and proactive Senior Big Data / Java Engineer , who is excited to take on new challenges.

Responsibilities:

• Design and develop a large distributed system with multiple nodes.
• Create complex MapReduce and Spark pipelines for processing data volumes reaching hundreds of terabytes.
• Optimize and refine existing Spark pipelines.
• Develop ETL pipelines for OLAP databases, write, and optimize SQL queries.Maintain system stability and respond promptly to emerging issues.

Requirements:

• Experience: At least 7 years of development experience in Java/Scala.
• Expert proficiency in Java, including a deep understanding of multi-threaded and concurrent development.
• Knowledge of JMM (Java Memory Model) and its capabilities in multi-threading.
• Database experience: Schema design, understanding of key concepts (views, joins, transactions, transaction isolation levels, locks, etc.).
• Performance optimization skills for Java applications.
• Experience with distributed systems, including independent design of libraries and subsystems.
• Familiarity with UML and the ability to document architectural decisions.
• Strong OOP understanding and practical application of design patterns.
• Task management skills: Ability to assess complexity, decompose tasks, and prioritize execution.
• Technical documentation skills: Clear and structured documentation of solutions and recommendations.

Personal Qualities:

• Ability to make decisions and take responsibility for them.
• Capability to foresee potential issues at the design stage.
• Willingness to acknowledge mistakes, analyze, and correct them.
• Attention to detail and commitment to delivering high-quality solutions.

Would be an advantage:

• Experience with large-scale data storage and processing systems (HBase, Cassandra, MR Jobs, Flow computations, Kafka, etc.).
• Proficiency in Scala (if Java is the primary language).