We are looking for a Senior Big Data Developer to join our growing Data Practice and make our team even stronger.Our projects and technologies are very diverse and cover all technologies currently on the market and represented by open-source communities.We are providing our service to Clients in different domains: Financial, Health Care, Insurance and many others, so you will have a chance to develop yourself in any direction you want.RESPONSIBILITIES Implement data ingestion from diverse sources utilizing technologies including RDBMS, REST HTTP API, flat files, Streams, Time series data, SAP Research and utilize Big Data technologies for effective data ingestion Process and transform data using tools such as Spark and various Cloud Services Understand and execute project-specific business logic through programming languages supported by the primary data platform Optimize data retrieval, develop dashboards, and perform data validation Collaborate with diverse teams including data scientists, analysts, and IT professionals Provide thought leadership on Big Data best practices and technology trends Maintain and ensure integrity and security of big data sources and platforms Perform troubleshooting, debugging, and upgrading of big data systems and applications REQUIREMENTS Bachelor’s degree in Computer Science, Mathematics or related technical field 5+ years experience in software development with Big Data technologies Advanced knowledge of Python, Scala, or Java Proficient with Spark and Databricks Experience with cloud platforms such as Azure, Google Cloud Platform, Amazon Web Services Demonstrated experience with big data models, databases, and tools Strong understanding of different data file formats like JSON, Parquet, Avro Hands-on experience with SQL and NoSQL databases, including Cassandra and MongoDB Proficiency in data warehousing solutions, ETL processes Proven ability to work within a fast-paced, team-oriented environment Detail-oriented with excellent analytical and problem-solving skills Knowledge of software development methodologies and best practices Exceptional oral and written communication skills in English (B2+) NICE TO HAVE Experience with Hadoop, Spark, Kafka, Oozie, Airflow, HDFS, YARN Experience with message queues, especially Kafka Production experience in search technologies such as Solr, OpenSearch, or Lucene WE OFFER We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Relocation within our 50+ offices We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, O’Reilly, Cloud Guru Language classes in English and Polish for foreigners We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview We will reach out to selected candidates exclusively EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.