{"id":114676,"url":"https://alion.io/job/icf-senior-data-scientist-security-clearance-required","title":"Senior Data Scientist (Security Clearance Required)","company":{"id":2632,"name":"ICF","domain":"icf.com","url":"https://alion.io/company/icf","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":100,"open_postings":13,"ghost_share":0,"stale_share":0,"repost_share":0.077,"time_to_fill_p50_days":21,"computed_at":"2026-10-23T05:54:15Z"}},"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":["Arlington, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":131256,"max":223134,"currency":"USD","period":"year","gross":null,"usd_annual":223134},"salary_estimate":null,"experience_years_min":12,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Machine Learning","optional":false},{"name":"Recommender Systems","optional":false},{"name":"Databricks","optional":true},{"name":"JavaScript","optional":true},{"name":"NLP","optional":true},{"name":"Python","optional":true},{"name":"SQL","optional":true}],"status":"live","first_seen_at":"2026-08-13T00:00:00Z","employer_posted_date":"2026-08-13","last_verified_at":"2026-10-23T07:45:01Z","board_verified":true,"closed_at":null,"days_open":71,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":71},"description":"ICF seeks an experienced and cleared Senior Data Scientist to support the research and development of new cyber analytic capabilities that will help the US protect and defend its networks and critical information systems. This position will support a large federal cyber security analytic program. The work will contribute to the knowledge of how cyber-attacks work, how vulnerabilities are exploited, and the way hostile cyber actors operate. Utilize your skills to help experiment and prototype future cyber capabilities for implementation at large-scale.\nAs the Senior Data Scientist, this role will create useful and actionable insight for the customer through the development of machine learning, deep learning models, and related algorithms. The ideal candidate is strong mathematically; can automate scoring using machine learning techniques, build recommendation systems, and select the correct data points for analysis from large data sets. You are focused on results, a self-starter, and have demonstrated success using analytics to drive an understanding, growth, and success of the analysis. This is an opportunity to contribute to an important project from its beginning, work with the latest and emerging technologies, and all while building a great career at ICF!\nThis role is primarily telework-based with occasional meetings at client locations (Arlington, VA or Pensacola, FL) or ICF facilities within the Washington, DC metro area (DMV).\nWhat You Will Be Doing:\nPerform knowledge elicitation from customer subject matter experts and convert that to derived algorithms\nAnalyze large data sets to identify actionable insights with mathematical statistical rigor\nRigorously critique and correct intermediate results to improve the algorithmic outcomes\nDesign and deploy deep learning algorithms and predictive models\nDevelop custom data models and algorithms to apply to data sets\nAssess the effectiveness and accuracy of new data sources and data gathering techniques\nDevelop processes and tools to monitor and analyze model performance and data accuracy\nInterpret and communicate results to non-technical customers\nWhat You Must Have:\nActive security clearance required as part of client contract requirement\nUS Citizenship required as part of client contract requirements\nBachelor’s degree with a minimum of 12 years or Master’s degree with 10 years of experience in Computer Science, Statistics, Applied Mathematics, Computational Linguistics, Artificial Intelligence or related field\nPosition requires a minimum of 10 years of practical working experience in one or more of the following areas: Natural Language Processing, Machine Learning Models, Question Answering, Text Mining, Information Retrieval, Distributional Semantics, Data Science, Knowledge Engineering\nStrong experience using a variety of mathematical, statistical, data mining, and data analysis methods/tools\nPreferred Skills/Experience:\nExperience in Computer Science, Statistics, Applied Mathematics, Computational Linguistics, Artificial Intelligence or related field\nInterpersonal skills and the ability to communicate effectively with various clients in order to explain and elaborate on technical details\nExperience in productization of machine learning algorithms and the ability to deliver data science components that are part of successful deliverables\nWorking knowledge of general machine learning algorithms and NLP, Graph Theory, and Network Analysis\nFluency in one or more programming languages (e.g., Python, JavaScript, R, etc.)\nExperience with statistical data analysis, experimental design, and hypotheses validation\nExperience with database querying like SQL\nReadiness to collaborate with engineering teams, product teams, and customers to develop prototypes and software products\nPractical experience with the Databricks Intelligence Platform\nCompTIA Security+ or higher certification level preferred\n#ICFNS\nBot and Third-Party Applications\nPlease note that this application must be submitted directly by the applicant for consideration. Failure to do so may result in the application being excluded for consideration. Applicants needing an accommodation for disability or religious purposes in connection with the application process should contact  for assistance.\nWorking at ICF\nICF is a global advisory and technology services provider, but we’re not your typical consultants. We combine unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future.We can only solve the world's toughest challenges by building a workplace that allows everyone to thrive. We are an equal opportunity employer.Together, our employees are empowered to share theirexpertiseand collaborate with others to achieve personal and professional goals. For more information, please read our EEO policy.\nWe will consider for employment qualified applicants with arrest and conviction records.\nReasonable Accommodations are available, including, but not limited to, for disabled veterans, individuals with disabilities, and individuals withsincerely heldreligious beliefs, in all phases of the application and employment process. To requestan accommodation,please email  and we will be happy toassist. All information you provide will be kept confidential and will be used only to the extentrequiredto provide needed reasonable accommodations.\nRead more about workplace discrimination rights or our benefit offerings which are included in the Transparency in (Benefits) CoverageAct.\nCandidate AI Usage Policy\nAt ICF, we are committed to ensuring a fair interview process for all candidates based on their own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) tools to generate orassistwith responses during interviews (whether in-person or virtual) is notpermitted. This policy is in place tomaintainthe integrity and authenticity of the interview process.\nHowever, we understand that some candidates may require accommodationthat involves the use of AI. Ifsuch anaccommodation is needed, candidates are instructed to contact us in advance at . Weare dedicated to providingthe necessary support to ensure that all candidates have an equal opportunity to succeed.\nPay Range - There are multiple factors that are considered in determining final payfor a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, geographic location, education and certifications as well as contract provisions regarding labor categories that are specific to the position.\nThe pay range for this position based on full-time employment is:\n$131,256.00 - $223,134.00Virginia Client Office (VA88)","description_format":"text","description_chars":6847,"description_truncated":false,"requirements":{"experience_years_min":12,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"},{"name":"Florida","iso":null,"kind":"city"},{"name":"Virginia","iso":null,"kind":"city"},{"name":"District of Columbia","iso":null,"kind":"city"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Energy Efficiency","Digital Government","Management Consulting"],"lifecycle":[{"event":"open","at":"2026-08-13T00:00:00Z"}],"visa":[],"liveness":{"score":16,"band":"cold","label":"Long shot","p_open":1,"p_active":0.57,"p_room":0.28,"age_days":71,"expected_fill_days":21,"reasons":["conf:3","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-23T05:54:15Z"},"pay":{"stated_usd_annual":223134,"is_top_pay":true},"html_url":"https://alion.io/job/icf-senior-data-scientist-security-clearance-required","json_url":"https://alion.io/job/icf-senior-data-scientist-security-clearance-required.json","meta":{"generated_at":"2026-10-23T07:52:57Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":12628,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-24T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":2632},"rest":"https://alion.io/mcp/rest/get_company?id=2632"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ficf-senior-data-scientist-security-clearance-required"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Ficf-senior-data-scientist-security-clearance-required"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Ficf-senior-data-scientist-security-clearance-required"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/icf-senior-data-scientist-security-clearance-required\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ficf-senior-data-scientist-security-clearance-required"}]}