{"id":2498376,"url":"https://alion.io/job/nextsilicon-serbia-senior-software-engineer-risc-v-virtualization","title":"Serbia-Senior Software Engineer - RISC-V Virtualization","company":{"id":49173,"name":"NextSilicon","domain":"nextsilicon.com","url":"https://alion.io/company/nextsilicon","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Comeet","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Belgrade, Serbia"],"countries":["RS"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"HPC","optional":false},{"name":"KVM","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-06-27T14:40:25Z","employer_posted_date":"2026-06-27","last_verified_at":"2026-10-28T23:18:50Z","board_verified":true,"closed_at":null,"days_open":123,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":122},"description":"Description\nNextSilicon is a swiftly growing unicorn startup that is reimagining high-performance computing. Our pioneering RISC-V and accelerator coprocessor vastly accelerates supercomputers, driving them forward into a new generation. Our new software-defined hardware architecture enables HPC and AI to fulfill its promise of breakthroughs in all advanced research fields.\nAt NextSilicon, everything we do is guided by three core values:\nProfessionalism: We strive for exceptional results through professionalism and unwavering dedication to quality and performance. \nUnity: Collaboration is key to success. That's why we foster a work environment where every employee can feel valued and heard. \n Impact: We're passionate about developing technologies that make a meaningful impact on industries, communities, and individuals worldwide.\nWe are seeking a highly skilled and experienced Software Engineer to join our team. In this role, you will be responsible for the architecture and implementation of virtualization support for our custom RISC-V implementation, ensuring our hardware-software synergy delivers maximum performance for virtualized workloads.\nRequirements\nB.Sc in Electrical Engineering, Computer Science, or equivalent experience.\n7+ years of experience as a low-level software engineer.\nDeep technical literacy: Ability to digest and implement complex technical specifications, specifically the RISC-V H-extension (Hypervisor).\nVirtualization expertise: Solid understanding of virtualization fundamentals, including nested page-tables, virtualized I/O, and IOMMU logic.\nStrong OS Internals: Proficiency in kernel-level development and memory management.\nStrong, proven coding skills in C and C++.\nHardware-aware debugging: Ability to root-cause complex integration issues across the stack, distinguishing between software bugs, hardware errata, or spec misinterpretations.\nFamiliarity with Python for scripting and internal tooling - an advantage.\nExperience with KVM, OpenSBI, or custom micro-hypervisors - an advantage.\nA proactive, can-do approach and flexible mindset.\nExcellent written and verbal communication skills.\nAbility to work both independently and as part of a collaborative team.\nResponsibilities\nDesign and implement the virtualization layer and hypervisor support for our custom RISC-V implementation.\nTake ownership of the H-spec implementation, ensuring our software stack is strictly compliant with (or intentionally extends) the RISC-V standard.\nDevelop and maintain hypervisor-level software to support guest execution, world-switching, and resource isolation.\nDebug and resolve high-pressure integration issues between our evolving hardware and the software stack (KVM/Hypervisor).\nImplement and optimize memory management strategies, including two-stage translation and I/O virtualization.\nCollaborate closely with hardware teams to validate the H-extension and provide feedback on hardware design from a software perspective.\nWide system impact through collaboration with software engineers, hardware engineers, and other stakeholders.","description_format":"text","description_chars":3083,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":true},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Processors, MCUs & AI Chips","High-Performance Computing"],"lifecycle":[{"event":"open","at":"2026-10-14T05:20:09Z"}],"visa":[],"liveness":{"score":22,"band":"cold","label":"Long shot","p_open":1,"p_active":0.619,"p_room":0.36,"age_days":122,"expected_fill_days":66,"reasons":["conf:0","velocity","win:tail","crowd:"],"computed_at":"2026-10-28T05:59:10Z"},"pay":null,"html_url":"https://alion.io/job/nextsilicon-serbia-senior-software-engineer-risc-v-virtualization","json_url":"https://alion.io/job/nextsilicon-serbia-senior-software-engineer-risc-v-virtualization.json","meta":{"generated_at":"2026-10-29T00:41:47Z","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":966,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":49173},"rest":"https://alion.io/mcp/rest/get_company?id=49173"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fnextsilicon-serbia-senior-software-engineer-risc-v-virtualization"},{"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%2Fnextsilicon-serbia-senior-software-engineer-risc-v-virtualization"},{"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%2Fnextsilicon-serbia-senior-software-engineer-risc-v-virtualization"},{"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/nextsilicon-serbia-senior-software-engineer-risc-v-virtualization\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnextsilicon-serbia-senior-software-engineer-risc-v-virtualization"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":2498376}},{"tool":"search_jobs","arguments":{"company":"nextsilicon.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":2498376},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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