{"id":606732,"url":"https://alion.io/job/ddn-staff-engineer-customer-facing","title":"Sustaining Engineer - L4","company":{"id":672909,"name":"DDN","domain":"ddn.com","url":"https://alion.io/company/ddn","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":94,"open_postings":8,"ghost_share":0,"stale_share":0,"repost_share":0.375,"time_to_fill_p50_days":43,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Support","role_family":"Support","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Santa Clara, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":185000,"max":250000,"currency":"USD","period":"year","gross":null,"usd_annual":250000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon S3","optional":false},{"name":"C++","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"Tcpdump","optional":false},{"name":"Grafana","optional":true},{"name":"LLM","optional":true},{"name":"OpenTelemetry","optional":true},{"name":"Prometheus","optional":true}],"status":"live","first_seen_at":"2026-09-10T14:35:20Z","employer_posted_date":"2026-09-10","last_verified_at":"2026-10-29T02:50:59Z","board_verified":true,"closed_at":null,"days_open":48,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":48},"description":"DDN is seeking a Sustaining Engineer to join our Infinia Core team. This is a senior, technical engineering role focused on owning complex customer escalations through to resolution.\nYou'll own complex technical escalations end-to-end, from root-cause analysis and incident response through to mitigation, customer communication and product improvements. You'll also help shape engineering best practice, mentor other engineers and drive the use of AI and automation to improve reliability and diagnostics.\nIf you enjoy solving difficult technical problems, working across the stack and seeing the direct impact of your engineering work on real customers, this is an opportunity to make a significant contribution.\nAbout Infinia\nInfinia is DDN's next-generation, software-defined storage platform, built from the ground up for AI and accelerated computing. It combines separate control and data planes, all-flash performance, sub-millisecond latency and multi-tenancy for demanding enterprise and hyperscale AI and GPU workloads.\nWhat You'll Do\nCommunicate technical issues clearly to customers, engineers and senior stakeholders, including executive audiences.\n\nOwn complex customer escalations from diagnosis through to resolution, mitigation and RCA.\n\nLead live incident response, war rooms and cross-functional investigations with Engineering, QA and Field teams.\n\nDebug complex distributed-systems, storage and performance issues across the system, protocol and application layers.\n\nReproduce customer issues and feed findings into product and reliability improvements.\n\nDevelop runbooks, troubleshooting guidance and performance-tuning practices.\n\nAct as a technical authority on Infinia internals, mentoring engineers and influencing architectural best practice.\n\nPartner with Field CTOs, Solutions Architects and Sales Engineers on strategic customer issues.\n\nUse AI, automation and observability to improve diagnostics, reliability and MTTR.\n\nCommunicate technical issues clearly to customers, engineers and senior stakeholders, including executive audiences.\n\nThis position requires participation in an on-call rotation to provide after-hours support as needed.\n\nWhat You'll Bring\nMust-Haves\nSignificant experience in enterprise storage, distributed systems or cloud infrastructure, with technical leadership at Senior or Staff level.\n\nDeep understanding of file systems and storage technologies, including S3, POSIX, NFS and storage performance.\n\nStrong Linux systems knowledge, including kernel-level troubleshooting and debugging.\n\nStrong coding ability in Python or C++.\n\nProven ability to diagnose complex issues using tools such as strace, tcpdump and perf.\n\nGenuine interest in working directly with customers and taking ownership of complex problems through to resolution.\n\nNice-to-Haves\nExperience with DDN, VAST, Weka or similar scale-out storage/file systems.\n\nFamiliarity with observability platforms such as Prometheus, Grafana, ELK or OpenTelemetry.\n\nKnowledge of replication, consistency models and data integrity mechanisms.\n\nExperience supporting AI/ML, LLM training or other high-performance computing environments.\n\nExperience using AI tools for log analysis, troubleshooting, automated RCA or reducing MTTR.","description_format":"text","description_chars":3237,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Enterprise Storage Systems","Servers & Data Center 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