{"id":54655,"url":"https://alion.io/job/sonatus-senior-staff-ai-engineer","title":"Senior Staff AI Engineer","company":{"id":13046,"name":"Sonatus","domain":"sonatus.com","url":"https://alion.io/company/sonatus","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":95,"open_postings":21,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":86,"computed_at":"2026-10-23T05:54:15Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"staff","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Sunnyvale, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":227500,"max":300000,"currency":"USD","period":"year","gross":null,"usd_annual":300000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"A/B Testing","optional":false},{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"C++","optional":false},{"name":"Docker","optional":false},{"name":"Fine-tuning","optional":false},{"name":"GCP","optional":false},{"name":"Go","optional":false},{"name":"Hallucination","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"LLM","optional":false},{"name":"Machine Learning","optional":false},{"name":"Multi-Agent Systems","optional":false},{"name":"Python","optional":false},{"name":"PyTorch","optional":false},{"name":"RAG","optional":false},{"name":"Scikit-learn","optional":false},{"name":"TensorFlow","optional":false},{"name":"TensorFlow C++","optional":false},{"name":"Time Series","optional":false},{"name":"Agile","optional":true}],"status":"live","first_seen_at":"2026-03-09T17:46:33Z","employer_posted_date":"2026-09-16","last_verified_at":"2026-10-24T02:26:53Z","board_verified":true,"closed_at":null,"days_open":228,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":227},"description":"At Sonatus, we’re driving the transformation to AI-enabled software-defined vehicles. Traditional automotive software methods can’t keep pace with consumer expectations shaped by the mobile industry-where features evolve rapidly, update seamlessly, and improve continuously. That’s why leading OEMs trust Sonatus to accelerate this shift. Our technology is already in production across more than 9 million vehicles on the road today and rapidly expanding.\nHeadquartered in Sunnyvale, CA, with 250+ employees worldwide, Sonatus combines the agility of a fast-growing company with the scale and impact of an established partner. Backed by strong funding and proven by global deployment, we’re solving some of the most interesting and complex challenges in the industry. Join us and help redefine what’s possible as we shape the future of mobility.\nRole Summary:\nWe are seeking a highly motivated Senior Staff AI Engineer to join our team and help us accelerate software innovations for next-generation software-defined vehicles. In this role, you will be responsible for the high-quality implementation of an Agentic Framework to support our AI applications. You will be responsible for writing the production-grade code that allows our AI applications to interact with millions of vehicles in real-time. We need a \"builder\" who thrives on the technical details of multi-agent orchestration, tool-calling optimisation, and LLM security. You will translate architectural designs into executable, high-performance systems, taking full ownership of the development lifecycle from local prototyping to global cloud deployment. This is a hands-on role for an engineer who prioritises execution, code quality, and system reliability for multi-agent systems, AI technologies, and platforms.\nResponsibilities:\nLead efforts to leverage existing AI models and frameworks to solve complex business challenges.\nDevelop agentic orchestration by designing and implementing reason and act loops that allow AI agents to decompose complex goals into actionable sub-tasks.\nDesign and implement a versioned prompt registry allowing for model-agnostic routing and A/B testing of system prompts\nEngineer the privacy shield for PII redaction and the hallucination verifier to audit AI-generated actions before execution\nConduct the full cycle of data modeling and algorithm development, including modeling, training, tuning, validating, deploying, and maintaining services (AI breadth).\nStrong domain expertise in the AI area, including LLMs, Time Series, RAG, fine-tuning large models, traditional ML models, etc. (AI depth)\nStay current with industry trends and advancements in data science and AI technologies. (State-of-the-Art)\nPerform data analysis and offer insights to inform business decisions across multiple domains.\nAdhere to data privacy and security protocols to uphold the confidentiality of sensitive information.\nCollaborate with cross-functional teams to understand requirements and translate them into effective AI and data science solutions.\nDocument and communicate technical designs, processes, and best practices to stakeholders using visualizations and presentations.\nTake charge of projects, ensuring timely completion in a dynamic work environment.\nQualifications:\nMaster’s or PhD in Computer Science, Engineering, Mathematics, Applied Sciences, or a related field preferred. Bachelor's degree required.\nStrong programming skills in languages such as Golang, Python, Java, or C++, with hands-on experience in relevant frameworks (e.g., TensorFlow, PyTorch, scikit-learn).\nProven experience building multi-agent systems and frameworks with adaptive orchestration\nDeep understanding of Jailbreak Detection (e.g., LlamaGuard) and PII masking techniques to ensure safe LLM interactions in regulated environments\nIn-depth knowledge and understanding of current machine learning algorithms, AI technologies, and platforms.\nSolid experience in data preprocessing, feature engineering, and model evaluation techniques.\nFamiliarity with cloud platforms (e.g., AWS, Azure, Google Cloud) and containerization technologies (e.g., Docker, Kubernetes) is a plus.\nStrong knowledge of software development best practices, version control systems, and agile methodologies.\nResults-driven with a positive can-do attitude and excellent problem-solving skills.\nExceptional verbal and written communication skills, with the ability to collaborate effectively with cross-functional teams.\nExperience in the automotive industry is highly desirable.\nBenefits Offered:\nCompetitive compensation and equity program\nHealth care plan (Medical, Dental & Vision)\nFlexible and Dependent Care Expense program\nRetirement plan (401k)\nLife Insurance (Basic, Voluntary & AD&D)\nUnlimited paid time off per year, 15 paid holidays\nHybrid office work arrangement/flexibility\nPerk Offerings include:\nComplimentary lunches, snacks, and beverages during on-site working days\nWellness benefit allowances (towards gym membership and fitness programs)\nInternet reimbursement\nComputer Accessory Allowance\nEmployee Engagement Offerings:\nDepartmental team building and outings\nEmployee Referral Program\nCulture/Employee Satisfaction Surveys - Feedback matters!\nThe posted salary range is a general guideline and represents a good faith estimate of what Sonatus (\"Company\") could reasonably expect to pay for a base salary for this position. The pay offered to a selected candidate will be determined based on factors such as (but not limited to) the scope and responsibilities of the position, the qualifications of the selected candidate, departmental budget availability, geographic location and external market pay for comparable jobs. The Company reserves the right to modify this range in the future, as needed, as market conditions change.\nBase Salary Pay Range\n$227,500—$300,000 USD","description_format":"text","description_chars":5841,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["401k plan","Equity","Gym membership","Internet reimbursement","Life insurance","Retirement plans"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Edge AI","Automotive Software"],"lifecycle":[{"event":"open","at":"2026-03-09T17:46:33Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 26 · green card filings: 4","filings_12m":26,"filings_prev_12m":13,"green_card_filings_12m":4,"median_offered_wage_usd":170167,"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":10}],"liveness":{"score":19,"band":"cold","label":"Long shot","p_open":1,"p_active":0.662,"p_room":0.28,"age_days":227,"expected_fill_days":86,"reasons":["conf:1","win:tail","crowd:"],"computed_at":"2026-10-23T05:54:15Z"},"pay":{"stated_usd_annual":300000,"is_top_pay":true},"html_url":"https://alion.io/job/sonatus-senior-staff-ai-engineer","json_url":"https://alion.io/job/sonatus-senior-staff-ai-engineer.json","meta":{"generated_at":"2026-10-24T03:39:25Z","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":5772,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-25T00:00:00Z"}},"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":13046},"rest":"https://alion.io/mcp/rest/get_company?id=13046"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsonatus-senior-staff-ai-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%2Fsonatus-senior-staff-ai-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%2Fsonatus-senior-staff-ai-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/sonatus-senior-staff-ai-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsonatus-senior-staff-ai-engineer"}]}