{"id":4008610,"url":"https://alion.io/job/cursor-software-engineer-client-infrastructure-2","title":"Software Engineer, Client Infrastructure","company":{"id":16873,"name":"Cursor","domain":"cursor.com","url":"https://alion.io/company/cursor","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":95,"open_postings":27,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":89,"computed_at":"2026-11-10T06:52:35Z"}},"role":"Backend","role_family":"Backend","seniority":"junior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":140000,"max":225000,"currency":"USD","period":"year","gross":null,"usd_annual":225000},"salary_estimate":null,"experience_years_min":2,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Cursor","optional":false}],"status":"live","first_seen_at":"2026-11-10T00:10:43Z","employer_posted_date":"2026-11-10","last_verified_at":"2026-11-10T08:42:34Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars.\nSpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next.\nSOFTWARE ENGINEER, CLIENT INFRASTRUCTURE\nAs an Engineer on the Client Infrastructure team at SpaceXSI, you'll design and build the systems that make our desktop experience performant and stable for millions of developers. You'll work across the core architecture of the Cursor client, from build and distribution systems to performance instrumentation and shared abstractions that other teams rely on. The work is deeply technical and central to the company's success. Developers expect near-perfect performance and reliability from their trusted tools; your work will make that possible.\nRESPONSIBILITIES:\nBuild core client infrastructure: shared abstractions, build systems, and observability foundations\n\nImprove reliability and performance: eliminating memory leaks, crashes, and frame-time inconsistencies\n\nDesign instrumentation and telemetry systems for profiling, structured logging, and performance measurement\n\nPartner with product teams to unlock faster release velocity, shipping updates to users daily\n\nEvaluate Electron vs. native approaches for critical code paths, guiding architectural tradeoffs\n\nBuild internal tooling that enables other engineers to ship safely and quickly on the client platform\n\nBASIC QUALIFICATIONS:\nExperience building or contributing to high-performance desktop applications (Electron-based or native)\n\nBachelor's degree in computer science, engineering, math, or scientific discipline; OR 2+ years of professional experience building software in lieu of a degree\n\nPREFERRED SKILLS AND EXPERIENCE:\nDeep experience in client infrastructure, build systems, performance, distribution, or observability\n\nExperience building or contributing to high-performance desktop applications, whether Electron-based or native\n\nCare deeply about performance, reliability, and developer experience, and have an eye for elegant systems design\n\nThrive in environments that are fast-moving, collaborative, and product-focused\n\nExcited to push the limits of what's possible in AI-driven developer tools\n\nADDITIONAL REQUIREMENTS:\nIf there appears to be a fit, we'll reach out to schedule 2-3 short technicals. After, we'll schedule an onsite in our office, where you'll work on a small project, discuss ideas, and meet the team\n\nCOMPENSATION AND BENEFITS:\nThe annual compensation range for this role is listed below.\nAnnual Salary:\n$140,000 - $225,000 USD\nYour actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience.\nBase salary is just one part of our total rewards package at SpaceXSI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.","description_format":"text","description_chars":3649,"description_truncated":false,"requirements":{"experience_years_min":2,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity","Life insurance","Retirement plans"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Agents","Code Intelligence","AI Development Tools"],"lifecycle":[{"event":"open","at":"2026-11-10T08:42:34Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":89,"reasons":["conf:1","win:early","comp:junior,brand"],"computed_at":"2026-11-10T10:30:51Z"},"pay":{"stated_usd_annual":225000,"is_top_pay":true},"html_url":"https://alion.io/job/cursor-software-engineer-client-infrastructure-2","json_url":"https://alion.io/job/cursor-software-engineer-client-infrastructure-2.json","meta":{"generated_at":"2026-11-10T10:30:51Z","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":24453,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-11T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":16873},"rest":"https://alion.io/mcp/rest/get_company?id=16873"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcursor-software-engineer-client-infrastructure-2"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fcursor-software-engineer-client-infrastructure-2"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fcursor-software-engineer-client-infrastructure-2"},{"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/cursor-software-engineer-client-infrastructure-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcursor-software-engineer-client-infrastructure-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4008610}},{"tool":"search_jobs","arguments":{"company":"cursor.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4008610},"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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