{"id":3158473,"url":"https://alion.io/job/reversinglabs-senior-data-engineer-detection-classification","title":"Senior Data Engineer (Detection & Classification)","company":{"id":17650,"name":"ReversingLabs","domain":"reversinglabs.com","url":"https://alion.io/company/reversinglabs","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"B","score":80,"open_postings":4,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":18,"computed_at":"2026-10-25T05:49:26Z"}},"role":"Data Science","role_family":"Data Science","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Zagreb, Croatia"],"countries":["HR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":38000,"max_usd":98000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2491},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ClickHouse","optional":false},{"name":"Grafana","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false},{"name":"Apache Kafka","optional":true},{"name":"CI/CD","optional":true},{"name":"Git","optional":true},{"name":"RabbitMQ","optional":true}],"status":"live","first_seen_at":"2026-10-23T15:15:11Z","employer_posted_date":"2026-10-23","last_verified_at":"2026-10-25T12:49:06Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"At ReversingLabs, we are providing the world’s largest threat intelligence repository to protect software development and power advanced security solutions, keeping the leading cybersecurity organizations and Fortune 500 enterprises informed and ahead of the threats. Only ReversingLabs delivers the software package analysis speed and depth needed to protect against this critical area of risk.\nOur vision is clear. Arming every company with end-to-end insights to ensure development releases securely, IT purchases safely, and the SOC can effectively detect, isolate and respond. We are seeking extraordinary talent for this game changing opportunity to help forge this transformational journey at ReversingLabs.\nReversingLabs owns the largest file reputation database with records for over 70 billion samples. Our systems add millions of records daily, using in-house classification algorithms which decide whether a file, URL or domain is malicious or safe to use. We are looking for an experienced Data Engineer to join the team that builds these algorithms. The role combines data analysis, malware classification and software development, with data at its core.\nAs part of the team you’ll evaluate classification components, set up dashboards and monitoring to measure performance, identify gaps and propose improvements. To be successful in this role you will need experience in data analysis, data science or a similar role working with large datasets, and an understanding of popular data analysis tools and databases. We're a small, focused team where everyone's contribution is visible, and your work will directly shape the accuracy of our products and the trust customers place in them.\nResponsibilities\nResearch and evaluate new and existing detection technologies, and recommend improvements that increase classification accuracy and coverage \nCollect, process and analyze large volumes of structured, semi-structured and unstructured data from different sources, and turn it into reliable insights and decisions \nBuild dashboards, monitoring and alerting that track classification quality and engine performance, catch issues early, and support decisions with comparisons to other vendors and company-wide statistics \nWrite and maintain efficient, clean, production-ready Python code, including libraries, APIs and services\nOwn projects end to end and be the point of contact for teams integrating our algorithms\nRequirements\n4+ years in data analysis, data science or a similar role working with large datasets\nStrong analytical skills with the ability to collect, organize, analyze, and disseminate significant amounts of information with attention to detail\nStrong SQL and Python skills for data analysis \nExperience with large analytical databases such as ClickHouse\nExperience with data visualization tools and building dashboards and alerts in Redash, Grafana, or similar tools \nIndependence, initiative, effective communication skills, ability to create informative analysis reports and summaries that effectively communicate key findings \nAI-forward mindset and some experience using LLMs in data workflows, writing queries and scripts, exploring data and speeding up analysis \nDesired skills\nA background in malware analysis, threat intelligence or detection engineering, or real interest in cybersecurity and how malware detection works\nExperience with distributed data stores (Scylla), data pipeline tools (Kafka, RabbitMQ, Airflow) and data warehouse modeling\nKnowledge of statistics and experience with statistical software for analyzing datasets\nExperience taking code to production, including Git workflows, CI/CD pipelines, deployment and versioning\nBenefits\nHybrid work options (paid accommodation & transportation to Zagreb during onboarding for remote employees)\nFlexible working hours\nGenerous compensation and a bonus system based on annual performance\nHefty personal education budget and possibility to attend leading conferences and seminars in the field\nCompany library and possibility to order books of choice via Amazon\nPermanent contract in a fast-growing global company with Fortune 500 & governmental agencies as clients\nChallenging projects in a dynamic, collaborative team\nGreat career advancement opportunities - 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