{"id":2241234,"url":"https://alion.io/job/htec-senior-data-engineer-scala-spark","title":"Senior Data Engineer / Scala, Spark","company":{"id":55786,"name":"HTEC","domain":"htec.com","url":"https://alion.io/company/htec","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career sitemap","truth_index":{"grade":"B","score":75,"open_postings":6,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-22T06:10:10Z"}},"role":"Data Science","role_family":"Data Science","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Belgrade, Serbia","North Macedonia","Slovenia","Romania","Hungary","Turkey","Croatia"],"countries":["RS","MK","SI","RO","HU","TR","HR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":36000,"max_usd":95000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2491},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"Flink","optional":false},{"name":"Java","optional":false},{"name":"Knowledge Graph","optional":false},{"name":"Scala","optional":false},{"name":"Machine Learning","optional":true}],"status":"live","first_seen_at":"2026-06-08T00:00:00Z","employer_posted_date":"2026-06-08","last_verified_at":"2026-10-22T20:40:29Z","board_verified":true,"closed_at":null,"days_open":136,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":136},"description":"We are looking for an experienced Senior Data Engineer to join a dynamic and growing team working on large-scale data systems within a cutting-edge environment.\nIn this role, you will be part of a Knowledge Graph team, contributing to systems that power multiple products within a top-tier global tech ecosystem. You will work on designing and building scalable, distributed, multi-datacenter systems focused on data quality, integrity, and enrichment at scale.\nThis is an exciting opportunity for someone who enjoys solving complex data problems, working with modern data technologies, and challenging existing assumptions in a highly collaborative, geo-distributed team.\nWhat you will do\nDesign, build, and maintain large-scale distributed data systems\nDevelop data processing pipelines using technologies such as Spark and streaming solutions\nWork on systems that evaluate and ensure the quality and integrity of large-scale knowledge graphs\nContribute to data-intensive projects involving analytics, data discovery, and algorithm development\nCollaborate with cross-functional teams across multiple locations and product areas\nParticipate in architecture and design decisions for scalable, multi-datacenter solutions\nContinuously improve system performance, scalability, and reliability\nChallenge existing assumptions and propose innovative data engineering solutions\nWhat you bring\n5+ years of hands-on professional software development experience\nStrong programming skills in Scala and/or Java\nExperience working with Big Data technologies such as Spark and distributed systems\nHands-on experience with data streaming (e.g. Kafka) and distributed data storage (e.g. Cassandra)\nStrong problem-solving mindset and ability to work on complex, unsolved challenges\nExcellent written and verbal communication skills\nAbility to work effectively in distributed, cross-functional teams\nProactive and self-driven approach to engineering challenges\nTechnical expertise\nProgramming: Scala, Java\nBig Data processing: Spark\nStreaming technologies: Kafka\nDistributed storage systems: Cassandra\nWorkflow orchestration: Airflow\nStream processing frameworks: Flink\nDistributed system design and multi-datacenter architectures\nNice to have\nExperience with Knowledge Graphs or graph-based data systems\nBackground in machine learning or data science\nExperience in music information retrieval\nExposure to advanced data modeling and algorithm development\nWhy join HTEC\nWork on large-scale distributed systems for globally recognized products\nBe part of a highly skilled, international engineering team\nSolve complex and previously unexplored data challenges\nInfluence architecture and design in cutting-edge data platforms\nJoin a culture that values innovation, ownership, and engineering excellence","description_format":"text","description_chars":2781,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["UI/UX Design","IT Consulting & Digital Transformation","IT Outsourcing & Dedicated Teams","Custom Software 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