{"id":1270578,"url":"https://alion.io/job/sigma-software-group-senior-data-scientist-3","title":"Senior Data Scientist","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":["Kyiv, Ukraine"],"countries":["UA"],"hiring_countries":["UA"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":35000,"max_usd":93000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":1536},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"JavaScript","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"Snowflake","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-09-25T14:20:10Z","employer_posted_date":"2026-09-25","last_verified_at":"2026-09-28T05:27:17Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"Are you passionate about solving complex data challenges beyond traditional Machine Learning models? We are looking for a Senior Data Scientist to join a newly forming team focused on improving large-scale analytics and detection systems within a cybersecurity product ecosystem.\nAs part of Sigma Software, you will collaborate with engineers, researchers, and analytics experts to simplify complex detection logic, investigate enterprise-scale data flows, and drive impactful improvements across production systems. This is a Full-time remote/hybrid opportunity for specialists who enjoy autonomy, systems thinking, and solving ambiguous analytical problems.\nWe at Sigma Software offer the opportunity to work on technically sophisticated products, influence analytical practices from the early stages, and collaborate with experienced international teams in a fast-paced environment.\nCUSTOMER\nOur Customer is a global cybersecurity company delivering enterprise-grade security and risk mitigation solutions for organizations and digital platforms worldwide. The company operates in a highly data-driven environment where large-scale signal processing, detection systems, and operational intelligence play a critical role in protecting users and businesses against evolving digital threats.\nPROJECT\nThe project focuses on improving and simplifying a sophisticated analytics and detection ecosystem within the Customer’s Enterprise product line. The team works with complex rule-based detection logic and large-scale signal processing systems to identify redundancy, optimize data flows, and improve operational efficiency without compromising effectiveness.\nThis is not a Machine Learning-focused position. Instead, the role requires deep analytical thinking, engineering understanding, and the ability to investigate complex live systems independently. You will work closely with engineers, data scientists, and security researchers in a dynamic environment with rapid iteration cycles and evolving priorities.\n Analyze and investigate existing detection logic built on multiple interconnected signals and rule-based expressions\nUnderstand and map complex data flows, processing pipelines, and dependencies across enterprise systems\nIdentify redundancy, inefficiencies, and unnecessary complexity within current detection structures\nPropose simplification and optimization approaches while preserving detection quality and operational effectiveness\nConduct exploratory analysis on large and complex datasets to validate hypotheses and support decision-making\nAssess downstream implications and operational risks of proposed changes before implementation\nTranslate analytical findings into clear recommendations for technical and non-technical stakeholders\nCollaborate closely with engineers, data scientists, and security researchers to gather context and resolve blockers independently\nOperate effectively in a fast-paced environment with shifting priorities and short delivery cycles\nContribute to improving analytical methodologies and approaches within the newly forming team\n 5+ years of experience in Data Science, Analytics Engineering, Data Analytics, or related analytical roles\nStrong proficiency in Python and SQL\nExperience working with large-scale and complex datasets\nStrong analytical and problem-solving skills with the ability to independently structure ambiguous problems\nProven experience driving investigations from hypothesis generation to data-backed conclusions\nStrong engineering mindset with the ability to understand and reason about complex logic and codebases\nAbility to evaluate system behavior and understand downstream impacts of analytical decisions\nExperience collaborating cross-functionally with engineering and research teams\nAbility to work autonomously with minimal supervision\nUpper-Intermediate or higher English level\nFamiliarity with JavaScriptWILL BE A PLUS\n\nExperience with Snowflake\nExperience in cybersecurity, fraud detection, or risk analytics domains\nExperience working with rule-based systems or detection pipelines\nExposure to enterprise-scale analytics platforms\nUnderstanding of data pipeline architecture and signal processing systems\n PERSONAL PROFILE\nIndependent and proactive problem solver\nCurious and investigative mindset\nComfortable working in ambiguous environments\nStrong ownership mentality\nAdaptable to changing priorities and fast delivery cycles\nCollaborative and communication-oriented\nDetail-oriented with strong systems thinking capabilities","description_format":"text","description_chars":4513,"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":"All levels","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Ukraine","iso":"UA","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Information Security","IT Outsourcing & Dedicated Teams","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-09-25T23:57:07Z"}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":2,"expected_fill_days":29,"reasons":["conf:0","velocity","win:early"],"computed_at":"2026-09-28T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/sigma-software-group-senior-data-scientist-3","json_url":"https://alion.io/job/sigma-software-group-senior-data-scientist-3.json","meta":{"generated_at":"2026-09-29T04:23:41Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":4147,"day_limit":5000,"remaining_today":853,"minute_limit":60,"resets_at":"2026-09-30T00:00:00Z"}}}