Data Engineer - What You''ll Do- Build and enhance backend features end to end: requirements, implementation, automated testing, A/B testing, and launch validation. - Collaborate with product, design, and client teams to deliver complete functionality. - Develop reliable, maintainable backend components used by other engineers. - Work on large-scale, distributed, and data-intensive systems. What We''re Looking For- 3 years of backend engineering experience. - Java backend skills (REST APIs, caching, storage, data processing). - Hands-on Big Data experience: Hadoop, Spark, MapReduce (active migration from MR Spark). - Experience in consumer apps, social media, or large-scale platforms (not financial systems). - Ability to communicate clearly in English (fluent required) and collaborate effectively across global teams. If you have real Big Data experience and enjoy building products at scale, we''d love to hear from you!