{"id":3678908,"url":"https://alion.io/job/sigma-software-group-senior-data-engineer-cybersecurity-2","title":"Senior Data Engineer (Cybersecurity)","company":{"id":6266,"name":"Sigma Software Group","domain":"sigma.software","url":"https://alion.io/company/sigma-software-group","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Python","optional":false},{"name":"Snowflake","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-11-03T10:51:55Z","employer_posted_date":"2026-11-03","last_verified_at":"2026-11-04T07:43:15Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Join a high-impact cybersecurity project focused on protecting applications from automated attacks and malicious activity. We are looking for a Senior Data Engineer who thrives in autonomous environments, enjoys solving complex data challenges, and is ready to drive modernization initiatives across scalable data systems.\nYou will become a core member of a small, highly proactive engineering team working on a large-scale cybersecurity product. The role requires deep involvement in understanding existing systems, including legacy code and interconnected services, identifying inefficiencies and technical gaps, and driving meaningful improvements across the platform. You will collaborate closely with product engineering teams, influence technical decisions, and contribute to both immediate optimizations and long-term platform evolution.\nAs part of Sigma Software, you will collaborate with experienced international teams and have the opportunity to shape scalable data infrastructure used in cybersecurity products operating at scale. We value ownership, strategic thinking, and technical excellence, offering an environment where engineers can influence architectural decisions, drive meaningful improvements, and continue growing professionally.\nCUSTOMER\nOur Customer is a global cybersecurity company delivering advanced digital protection solutions for businesses, organizations, and communities worldwide. Operating across multiple cybersecurity domains, the company focuses on identifying vulnerabilities, preventing threats, and strengthening digital resilience through scalable and reliable security products.\nPROJECT\nThe project focuses on developing and improving a cybersecurity solution designed to protect applications from automated attacks and malicious traffic. The team works on scalable, high-performance data infrastructure powering security analytics, monitoring, and detection capabilities. The environment combines modernization of legacy systems with the development of reliable and scalable data workflows, requiring strong ownership and close collaboration with cross-functional engineering teams.\nKey Technologies: Snowflake, DBT, SQL, Python, Elastic Stack, Airflow\n Maintain and enhance existing data processes with a focus on reliability, scalability, and performance optimization\nAnalyze and deeply understand existing data models, workflows, tables, and processing jobs\nIdentify technical gaps, bottlenecks, inefficiencies, and opportunities for architectural improvements\nDesign, optimize, and support large-scale data pipelines and transformation processes\nDrive modernization initiatives across the data platform and contribute to long-term architectural evolution\nOptimize complex SQL queries and improve data processing latency and efficiency\nCollaborate with product engineering and cross-functional teams on technical solutions and implementation strategies\nContribute to both short-term delivery goals and long-term platform development initiatives\nEnsure adherence to best practices in data engineering, system reliability, and performance optimization\nParticipate in technical discussions, solution design, and continuous improvement initiatives\n 5+ years of commercial experience in Data Engineering\nExpert-level Python skills\nExpert-level SQL skills with practical experience optimizing complex queries for performance and scalability\nStrong hands-on experience with DBT for data transformation and modeling\nSolid understanding of database concepts, including DDL, DML, indexing, normalization, and advanced SQL techniques\nHands-on experience working with Snowflake\nExperience with Elastic Stack technologies\nProven experience designing, building, and maintaining large-scale data pipelines\nStrong analytical thinking and problem-solving skills\nAbility to work independently in a high-autonomy engineering environment\nExperience driving technical initiatives from idea through implementation\nStrong communication and collaboration skills\nUpper-Intermediate English level or higher\nWILL BE A PLUS\nExperience with Airflow for workflow orchestration","description_format":"text","description_chars":4098,"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":[{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Cybersecurity","Information Security","IT Outsourcing & Dedicated Teams","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-11-03T12:19:53Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring 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