{"id":2984707,"url":"https://alion.io/job/castelion-cloud-compute-engineer","title":"Cloud Compute Engineer","company":{"id":1795053,"name":"Castelion","domain":"castelion.com","url":"https://alion.io/company/castelion","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":null},"role":"DevOps","role_family":"DevOps","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Allen, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":91000,"max_usd":201000,"period":"year","method":"role_country_seniority_unknown","sample_n":4161},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Azure","optional":false},{"name":"CI/CD","optional":false},{"name":"Foxglove Studio","optional":false},{"name":"Kubernetes","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"Ray","optional":false},{"name":"PyTorch","optional":true}],"status":"live","first_seen_at":"2026-10-20T18:54:26Z","employer_posted_date":"2026-10-20","last_verified_at":"2026-10-25T02:26:20Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Why Castelion, Why Now \nCastelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus, ownership, and excellence are decisive advantages - and we're building a world-class team to turn bold ideas into real capability. \nThis is a rare opportunity to join at an early stage, where you'll have significant ownership, collaborate with exceptional teammates, and make a direct, measurable impact on our mission and the future of the company - regardless of your function. \nCloud Compute Engineer\nCastelion is seeking a Cloud Compute Engineer to build and own the Seeker Team’s scalable cloud compute platform for data processing, simulation, calibration, and machine learning. You will move compute-intensive workflows from individual laptops and one-off scripts into a shared, automated, and reliable platform that supports multiple engineering teams.\nWorking across data processing, ML training, and test infrastructure, you will build distributed compute systems, optimize Python workloads, and integrate simulation and regression testing into CI/CD pipelines. This is a hands-on role with significant impact on engineering productivity, data-processing speed, and the scalability of Castelion’s seeker development.\nResponsibilities\nBuild a shared compute platform: Develop and operate distributed compute infrastructure supporting batch processing, custom jobs, simulation, calibration, preprocessing, and ML training.\nAutomate data processing: Build event-driven workflows that automatically process newly ingested data, including flight-test and chamber calibration data.\nScale compute-intensive workloads: Enable scalable ML training, Foxglove RDL preprocessing, data preparation, replay, and other user-submitted jobs.\nIntegrate compute with CI/CD: Enable simulation and regression tests to run automatically in CI/CD pipelines, expanding test coverage beyond standard runner limitations.\nOptimize performance and cost: Profile and improve Python workloads, data flows, memory usage, concurrency, and resource utilization-not just the underlying infrastructure.\nImprove the developer experience: Provide simple interfaces, APIs, or SDKs for engineers to submit, monitor, debug, and rerun jobs without managing infrastructure manually.\nEnsure reliability and observability: Implement logging, metrics, alerting, job traceability, and cost monitoring to make failures easy to diagnose and recover from.\nEnable reproducible workflows: Track code versions, inputs, configurations, and outputs so compute jobs can be reliably reproduced and audited.\nSupport large-scale data movement: Design efficient approaches to storage, data transfer, caching, partitioning, and preprocessing.\nDrive adoption across teams: Work directly with engineers to understand their workflows and establish consistent compute patterns across unclassified and classified networks.\nBasic Qualifications\nExperience building and operating distributed compute platforms used by multiple engineering teams.\nStrong Python skills, including profiling, concurrency, memory management, and performance optimization.\nProduction experience with Ray and Kubernetes.\nExperience designing batch-processing, event-driven, and user-submitted job systems.\nExperience with Azure compute, storage, networking, identity, and monitoring services.\nDemonstrated ability to optimize application code and data pipelines for performance, reliability, and cost.\nExperience implementing observability, automated job recovery, and reproducible processing workflows.\nAbility to build simple developer interfaces and work directly with users to automate complex workflows.\nPreferred Skills and Experience\nStrong PyTorch experience, including distributed training, data loading, checkpointing, and GPU utilization.\nExperience scaling ML training across large datasets and distributed compute resources.\nExperience integrating simulation and regression workloads into CI/CD pipelines.\nFamiliarity with large-scale engineering datasets, flight-test data, calibration, or scientific computing workflows.\nExperience building compute platforms that support both classified and unclassified environments.\nExperience improving processing throughput and turnaround time through workload optimization and infrastructure scaling.\nCastelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details. \nOther Duties \nPlease note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice. \nAdditional Eligibility Requirements \nThis position may require access to classified information or restricted U.S. Government sites, systems, or information, as determined by the Company and/or applicable U.S. Government requirements. If the position is so designated, your employment in the role may be contingent upon your ability to obtain and maintain the required U.S. Government security clearance or other government authorization, and to satisfy any citizenship or other eligibility requirements imposed by applicable law, regulation, executive order, or government contract requirements. You will be notified if and when such requirements apply. \nAffirmative Action/EEO Statement \nCastelion is an Equal Opportunity Employer. We are committed to providing equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable federal, state, or local law. \nCastelion is committed to providing reasonable accommodations to qualified individuals with disabilities throughout the application and hiring process. If you require a reasonable accommodation to complete an application, participate in the interview process, or otherwise participate in the hiring process, please contact . Requests for accommodation will be considered on an individual basis and handled in accordance with applicable law. \nCastelion is committed to fostering a workplace where employment decisions are based on qualifications, business needs, and the ability to perform the essential functions of the role, with or without reasonable accommodation. \nEAR/ITAR Requirements \nThis position requires access to export-controlled information, and as such, employment (or hiring of a contractor) is contingent upon the candidate’s ability to access all applicable export-controlled information without additional export licensing being required by the Bureau of Industry and Security and/or the Directorate of Defense Trade Controls.","description_format":"text","description_chars":6882,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":true,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Missiles","Defense Manufacturing"],"lifecycle":[{"event":"open","at":"2026-10-21T08:14:48Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":3,"expected_fill_days":22,"reasons":["conf:2","velocity","win:early","comp:brand"],"computed_at":"2026-10-24T06:02:35Z"},"pay":null,"html_url":"https://alion.io/job/castelion-cloud-compute-engineer","json_url":"https://alion.io/job/castelion-cloud-compute-engineer.json","meta":{"generated_at":"2026-10-25T04:28:24Z","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":5950,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-26T00:00:00Z"}},"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":1795053},"rest":"https://alion.io/mcp/rest/get_company?id=1795053"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcastelion-cloud-compute-engineer"},{"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%2Fcastelion-cloud-compute-engineer"},{"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%2Fcastelion-cloud-compute-engineer"},{"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/castelion-cloud-compute-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcastelion-cloud-compute-engineer"}]}