{"id":1629033,"url":"https://alion.io/job/arka-staff-data-engineer-tssci-with-full-scope-polygraph-s","title":"Staff Data Engineer (TS/SCI with Full Scope Polygraph) {S}","company":{"id":2226679,"name":"Arka","domain":"arka.com","url":"https://alion.io/company/arka-com","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"UltiPro","truth_index":{"grade":"D","score":40,"open_postings":69,"ghost_share":1,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-19T05:45:15Z"}},"role":"Data Science","role_family":"Data Science","seniority":"staff","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Herndon, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":136000,"max_usd":271000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":414},"experience_years_min":6,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Bitbucket","optional":false},{"name":"ETL/ELT","optional":false},{"name":"GitLab","optional":false},{"name":"LLM","optional":false},{"name":"Machine Learning","optional":false},{"name":"NumPy","optional":false},{"name":"Pandas","optional":false},{"name":"Polars","optional":false},{"name":"Python","optional":false},{"name":"Time Series Forecasting","optional":false},{"name":"Amazon EC2","optional":true},{"name":"Amazon S3","optional":true},{"name":"Arize Phoenix","optional":true},{"name":"AWS","optional":true},{"name":"AWS Bedrock","optional":true},{"name":"AWS Lambda","optional":true},{"name":"BERT","optional":true},{"name":"C#","optional":true},{"name":"C++","optional":true},{"name":"Computer Vision","optional":true},{"name":"CUDA","optional":true},{"name":"CUDA Toolkit","optional":true},{"name":"Docker","optional":true},{"name":"Docker Compose","optional":true},{"name":"Gymnasium","optional":true},{"name":"Hugging Face","optional":true},{"name":"Java","optional":true},{"name":"Kubernetes","optional":true},{"name":"LangChain","optional":true},{"name":"Langfuse","optional":true},{"name":"Linux","optional":true},{"name":"MLFlow","optional":true},{"name":"NLP","optional":true},{"name":"Podman","optional":true},{"name":"pySpark","optional":true},{"name":"PyTorch","optional":true},{"name":"Rancher","optional":true},{"name":"Ray","optional":true},{"name":"Reinforcement Learning","optional":true},{"name":"RLlib","optional":true},{"name":"Rust","optional":true},{"name":"Spark","optional":true},{"name":"Stable-Baselines3","optional":true},{"name":"Transformers","optional":true}],"status":"live","first_seen_at":"2026-02-26T21:41:37Z","employer_posted_date":"2026-02-26","last_verified_at":"2026-10-19T16:20:47Z","board_verified":true,"closed_at":null,"days_open":234,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":234},"description":"ARKA Group L.P. (“ARKA”) is an advanced technologies company serving the U.S. military, intelligence community, and commercial space industry delivering next-generation solutions to support the national security space enterprise. Built on more than six decades of excellence, ARKA brings modern approaches and a culture of innovation to the challenges of today.\nJoin the ARKA team to learn how Beyond Begins Here. Discover your next career opportunity now!\nPosition Overview:\nWe are looking for a Staff Data Engineer/Scientist looking for new challenging problems. You will support the development of AI/ML algorithms in a multitude of disciplines from large language models, natural language processing, and time-series predictive analytics. Additionally, we have a team of excellent researchers and software developers who are eager to mentor and teach their craft. We have multiple positions available and welcome all experience levels!\nWe offer generous relocation benefits for eligible candidates.\nIn support of work/life balance, many positions are available for a flexible schedule within the pay period. Ask us about the opportunity for flex scheduling if that’s of interest to you.\nResponsibilities:\nLead and mentor an interdisciplinary team consisting of both developers and researchers. The team's core focus is the implementation of ETL pipelines to support a variety of AI/ML and LLM solutions, which in turn address a broad range of customer challenges.\nAssembles large, complex sets of data to support AI/ML algorithm implementation \nBuilds required infrastructure for optimal extraction, transformation and loading of data from various data sources \nCurate and maintain data that is stored in support of metrics and evaluation \nImplement Artificial Intelligence/Machine Learning algorithms \nIdentifies, designs, and implements internal process improvements including re-designing infrastructure for greater scalability, optimizing data delivery, and automating manual processes \nUsing Agile methodologies to develop software.\nRequired Qualifications:\nB.S. in data science, AI/ML, computer science, or related field\nMinimum six (6) years of relevant experience as a Data Engineer/Scientist.\nExperience developing data pipelines and normalizing data with canonical Python packages (e.g. NumPy, Pandas, Polars) \nExperience contributing on a team using version control (e.g. git, GitLab, Bitbucket)\nActive TS/SCI U.S. Government Security Clearance with a recent Full-Scope Polygraph (FSP)\nPreferred Qualifications:\nM.S. or PhD in data science, AI/ML, computer science, or related field\nExperience with Gitlab, DevSecOps utilizing test-driven development, containers, (e.g. Docker, Docker Compose), cloud services (e.g. AWS), tools for distributed computing (e.g. Spark, Pyspark) \nExperience leading an interdisciplinary team of researchers and software developers\nExperience with any of the following:Large Language Models and experience identifying ways to incorporate them into new domains and applications\nApplying Transformer-based architectures to domains in other areas outside of Natural Language Processing (NLP) such as computer vision\nNatural Language Processing algorithms such as BERT\nReinforcement learning and familiarity with Gymnasium Gym, OpenEnv, TorchRL, RLlib, and Stable Baselines\nApplying clustering algorithms and/or deep neural networks to real life problems\nImplementing tracking and pattern-of-life algorithms\n\nExperience with GenAI Ops techniques (e.g. LLM-as-a-judge) and frameworks (e.g. LangFuse, MLFlow, Arize Phoenix)\nExperience with Machine Learning libraries and frameworks such as HuggingFace and LangChain\nExperience with Linux\nFamiliarity with using AWS cloud computing resources such as EC2, S3, Lambda, Bedrock, etc.\nExperience with any of the following additional languages: Java, C++, Rust, Go, and/or C#\nExperience implementing algorithms on the GPU in Python or C++ using CUDA and other CUDA libraries\nExperience in application deployment, virtualization, and containerization (e.g. Podman, Docker, Kubernetes, Rancher)\nExperience shaping and writing proposals\nLocation: Herndon, VA\nHerndon offers a charming blend of small-town ambiance and modern conveniences. In historic Herndon you'll find small town charm while maintaining all the amenities of big city life. The area has beloved farms to explore, historic sites, festivals, local parks, breweries, and some of the best restaurants in the area. Its proximity to Dulles International Airport and the Herndon Metrorail Station provides easy travel to over 400 shops and restaurants in the malls of Tysons or stay on the train and see the monuments and memorials of Washington, DC. Overall, Herndon provides a perfect mix of small-town charm, and big-city amenities complimented with many family local attractions, events, music, restaurants and a great lifestyle!\nWhat We Offer:\nComprehensive medical/vision/dental insurance packages\nCompany contributions to qualified HSA accounts\n401k retirement plan with industry leading company contributions\n3 weeks of vacation accrual per year plus time off for sick leave and unscheduled life events\n13 paid holidays\nUpfront tuition assistance for approved degree programs\nAnnual bonus program based on company and employee performance\nCompany paid life insurance, AD&D, Short-Term and Long-Term disability insurance\n4 weeks paid Parental Leave\nEmployee assistance program (EAP)\nEHS/Environmental Requirements:\nThis job operates in a professional office environment. While performing the duties of this job, the employee routinely is required to use hands to keyboard, communicate, listen to, and interpret instructions and remain stationary for extended periods of the time. This would require the ability to move around the campus and occasionally move/lift items weighing up to 25 lbs. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of the job.\nApplicants are invited to apply for a reasonable accommodation to perform the essential duties of the job. To apply, send a request to  or contact 203-797-5000 and press 2 for Human Resources.\nITC & Security Clearance Requirements:\nThis position requires an active TS/SCI U.S. Government Security Clearance with a recent Full-Scope Polygraph (FSP).\nVisa Restrictions:\nNo visa sponsorship is available for this position.\nPre-employment Screenings:\nEmployment with any ARKA companies in the U.S. is contingent upon satisfactory completion of several pre-employment requirements to include a credit check, background check, and drug screen.","description_format":"text","description_chars":6619,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":true},"security_clearance":true,"languages":[]},"benefits":["401k plan","Dental insurance","Flexible schedule","Life insurance","Parental leave","Retirement plans"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":true,"industries":["Consumer Goods","Transportation & Logistics"],"lifecycle":[{"event":"open","at":"2026-10-01T21:16:18Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"green card filings: 1","filings_12m":0,"filings_prev_12m":4,"green_card_filings_12m":1,"median_offered_wage_usd":82500,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":0}],"liveness":{"score":8,"band":"cold","label":"Long shot","p_open":1,"p_active":0.282,"p_room":0.28,"age_days":234,"expected_fill_days":44,"reasons":["conf:1","stale_co","ghost","win:tail","crowd:"],"computed_at":"2026-10-19T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/arka-staff-data-engineer-tssci-with-full-scope-polygraph-s","json_url":"https://alion.io/job/arka-staff-data-engineer-tssci-with-full-scope-polygraph-s.json","meta":{"generated_at":"2026-10-19T19:50:40Z","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":15674,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-20T00:00:00Z"}},"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":2226679},"rest":"https://alion.io/mcp/rest/get_company?id=2226679"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Farka-staff-data-engineer-tssci-with-full-scope-polygraph-s"},{"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%2Farka-staff-data-engineer-tssci-with-full-scope-polygraph-s"},{"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%2Farka-staff-data-engineer-tssci-with-full-scope-polygraph-s"},{"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/arka-staff-data-engineer-tssci-with-full-scope-polygraph-s\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Farka-staff-data-engineer-tssci-with-full-scope-polygraph-s"}]}