{"schemaVersion":"jobsearcher.job.v1","id":"179491f4ee4cdba59b3ab57e","url":"https://jobsearcher.com/jobs/179491f4ee4cdba59b3ab57e","canonicalUrl":"https://jobsearcher.com/jobs/179491f4ee4cdba59b3ab57e","title":"Lead Systems Software Engineer - Object Storage","description":"Key Responsibilities - Technical Leadership\n\nAct as the technical lead for the Centennial object storage team while remaining substantially hands-on.\nLead technical direction and drive key architectural decisions across the team's areas of ownership, including the data path, durability, S3, and data movement.\nDesign and build critical components, lead design and code reviews, help engineers solve complex systems problems, and ensure appropriate automated testing and CI coverage for critical changes.\nMentor engineers and develop technical ownership across the team.\nPartner with the Software Engineering Manager / Product Owner on scope, sequencing, technical risk, and delivery.\n\nObject Storage Data Path & S3\n\nDesign, implement, and optimize features in the ActiveScale data path, handling the flow from incoming S3 requests to durable storage across NVMe, HDD, and tape.\nImplement and extend the S3 API, ensuring correct protocol behavior and efficient request handling.\nImprove latency, throughput, scalability, and reliability of the I/O pipeline for exabyte-scale deployments using Linux profiling and systems debugging.\n\nDurability, Data Placement & Resilience\n\nOwn complex durability and data-placement work, including two-dimensional erasure coding, and ensure correctness under failures such as node loss, disk faults, partial writes, and network partitions.\nAnalyze and optimize concurrency, throughput, and fault tolerance across the request and storage paths.\n\nScalability & Data Movement\n\nDesign and improve systems that move and tier data from high-performance NVMe through HDD to the tape cold-storage tier (ActiveScale Cold Storage).\nDrive the evolution of internal APIs, services, and interfaces that support the data path and data mover.\n\nRequired Qualifications\n\n10+ years of software development experience using Go, Python, C, C++, or Rust (or equivalent systems-level expertise), with a willingness to learn additional languages.\nStrong experience with distributed systems and high-performance storage software design.\nStrong Linux experience, including systems programming, debugging, profiling, and performance analysis of complex systems.\nSolid understanding of concurrency, synchronization, locking, asynchronous programming, and memory management in performance-sensitive software.\nUnderstanding of cloud and enterprise storage concepts and the characteristics of storage media such as HDD, SSD, NVMe, and tape.\nExperience with object storage or S3-compatible APIs.\nDemonstrated technical leadership of a team or significant engineering workstream.\nStrong communication skills and ability to collaborate across teams, including collaboration with the established ActiveScale engineering teams in Belgium.\nThis is a hybrid role, with in-office work at our Centennial, CO office Tuesday through Thursday.\n\nPreferred / Nice-to-Have Skills\n\nExperience with the Linux I/O subsystem and networking.\nKnowledge of erasure coding principles.\nExperience with storage protocols and clustering design and development.\nExperience with REST, gRPC, or Thrift.\nExperience with Amazon S3 APIs, SDKs, and tools.\nFamiliarity with OCaml is welcome but not required; parts of the existing ActiveScale codebase are written in it.\n\nQuantum provides a diverse portfolio of health plans for medical and prescription, dental, vision, life, disability, and supplemental medical insurance options. We also support our team members' efforts to develop and maintain a healthy lifestyle through reimbursement and educational programs. Quantum offers a company-matched 401(k) plan to help employees save for retirement in a tax-advantaged way. We also have an Employee Stock Purchase Program for purchasing Quantum stock at a discounted rate.\n\nAnticipated Salary Range: $160,000 to $200,000 for qualified applicants.\n\nThe above pay range represents Quantum's good faith and reasonable estimate of possible compensation at the time of posting. Pay within the range will be based on a variety of factors, including but not limited to, relevant experience, knowledge/education, skills/abilities, internal equity, and budgetary considerations.\n\nEqual Opportunity Employer/Protected Veterans/Individuals with Disabilities\nThis employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights (https://www.eeoc.gov/poster) notice from the Department of Labor.","company":"Quantum Us","rawCompany":"quantum us","city":"Centennial","state":"CO","isRemote":false,"isActive":true,"createdAt":"2026-10-24T11:18:20.683Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1211.00","title":"Computer Systems Analysts","slug":"computer-systems-analysts"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Lead Systems Software Engineer - Object Storage","description":"Key Responsibilities - Technical Leadership\n\nAct as the technical lead for the Centennial object storage team while remaining substantially hands-on.\nLead technical direction and drive key architectural decisions across the team's areas of ownership, including the data path, durability, S3, and data movement.\nDesign and build critical components, lead design and code reviews, help engineers solve complex systems problems, and ensure appropriate automated testing and CI coverage for critical changes.\nMentor engineers and develop technical ownership across the team.\nPartner with the Software Engineering Manager / Product Owner on scope, sequencing, technical risk, and delivery.\n\nObject Storage Data Path & S3\n\nDesign, implement, and optimize features in the ActiveScale data path, handling the flow from incoming S3 requests to durable storage across NVMe, HDD, and tape.\nImplement and extend the S3 API, ensuring correct protocol behavior and efficient request handling.\nImprove latency, throughput, scalability, and reliability of the I/O pipeline for exabyte-scale deployments using Linux profiling and systems debugging.\n\nDurability, Data Placement & Resilience\n\nOwn complex durability and data-placement work, including two-dimensional erasure coding, and ensure correctness under failures such as node loss, disk faults, partial writes, and network partitions.\nAnalyze and optimize concurrency, throughput, and fault tolerance across the request and storage paths.\n\nScalability & Data Movement\n\nDesign and improve systems that move and tier data from high-performance NVMe through HDD to the tape cold-storage tier (ActiveScale Cold Storage).\nDrive the evolution of internal APIs, services, and interfaces that support the data path and data mover.\n\nRequired Qualifications\n\n10+ years of software development experience using Go, Python, C, C++, or Rust (or equivalent systems-level expertise), with a willingness to learn additional languages.\nStrong experience with distributed systems and high-performance storage software design.\nStrong Linux experience, including systems programming, debugging, profiling, and performance analysis of complex systems.\nSolid understanding of concurrency, synchronization, locking, asynchronous programming, and memory management in performance-sensitive software.\nUnderstanding of cloud and enterprise storage concepts and the characteristics of storage media such as HDD, SSD, NVMe, and tape.\nExperience with object storage or S3-compatible APIs.\nDemonstrated technical leadership of a team or significant engineering workstream.\nStrong communication skills and ability to collaborate across teams, including collaboration with the established ActiveScale engineering teams in Belgium.\nThis is a hybrid role, with in-office work at our Centennial, CO office Tuesday through Thursday.\n\nPreferred / Nice-to-Have Skills\n\nExperience with the Linux I/O subsystem and networking.\nKnowledge of erasure coding principles.\nExperience with storage protocols and clustering design and development.\nExperience with REST, gRPC, or Thrift.\nExperience with Amazon S3 APIs, SDKs, and tools.\nFamiliarity with OCaml is welcome but not required; parts of the existing ActiveScale codebase are written in it.\n\nQuantum provides a diverse portfolio of health plans for medical and prescription, dental, vision, life, disability, and supplemental medical insurance options. We also support our team members' efforts to develop and maintain a healthy lifestyle through reimbursement and educational programs. Quantum offers a company-matched 401(k) plan to help employees save for retirement in a tax-advantaged way. We also have an Employee Stock Purchase Program for purchasing Quantum stock at a discounted rate.\n\nAnticipated Salary Range: $160,000 to $200,000 for qualified applicants.\n\nThe above pay range represents Quantum's good faith and reasonable estimate of possible compensation at the time of posting. Pay within the range will be based on a variety of factors, including but not limited to, relevant experience, knowledge/education, skills/abilities, internal equity, and budgetary considerations.\n\nEqual Opportunity Employer/Protected Veterans/Individuals with Disabilities\nThis employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights (https://www.eeoc.gov/poster) notice from the Department of Labor.","datePosted":"2026-10-24T11:18:20.683Z","dateModified":"2026-10-24T11:18:20.683Z","hiringOrganization":{"@type":"Organization","name":"Quantum Us","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Centennial","addressRegion":"CO","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"179491f4ee4cdba59b3ab57e"},"url":"https://jobsearcher.com/jobs/179491f4ee4cdba59b3ab57e"}}