{"id":68049,"url":"https://alion.io/job/roblox-senior-software-engineer-core-platform-and-systems","title":"Senior Software Engineer - Core Platform and Systems","company":{"id":246,"name":"Roblox Corporation","domain":"roblox.com","url":"https://alion.io/company/roblox","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":74,"open_postings":34,"ghost_share":0,"stale_share":0.853,"repost_share":0,"time_to_fill_p50_days":68,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Mateo, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":196750,"max":243290,"currency":"USD","period":"year","gross":null,"usd_annual":243290},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":true,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AI Agents","optional":false},{"name":"C++","optional":false},{"name":"SwiftUI","optional":false},{"name":"Swift","optional":true}],"status":"live","first_seen_at":"2026-08-20T16:30:23Z","employer_posted_date":"2026-10-12","last_verified_at":"2026-10-18T00:37:17Z","board_verified":true,"closed_at":null,"days_open":58,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":58},"description":"Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences- all created by our global community of developers and creators. \nAt Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. \nA career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone.\nAs a Sr. Studio Software Engineer for Roblox Studio Platform, you will be a key contributor to the evolution of Roblox Studio, the primary IDE for making massive multiplayer online games on the Roblox platform. Studio provides the mission-critical tools for 3D modeling, animation, and the complete SDLC for millions of developers. We are looking for engineers who thrive on an adventure into the unknown and have experience across various systems, Operating Systems, Game Engines, and Application Frameworks.\nYou’ll tackle projects involving:\nCore User Features: Architecting application frameworks, windowing systems, and code generation.\n“AI Native” Features: Pioneering scalable systems that extend to complex, agentic use cases.\nFoundational Architecture: Driving OS integration, extensibility, and customizability at the deepest levels.\nCentral Backend Systems: Engineering the infrastructure to power a consistent, high-performance UX.\nDesign Evolution: Collaborating with UX designers to translate Studio into a modern, consistent design language.\nYou Will:\nDesign and execute the technical direction to drive the future extensibility and adaptability of the application.\nOwn and deliver complex technical projects from the initial spark of an idea through full execution.\nWork cross-functionally across teams and platforms to solve systemic challenges.\nMentor team members, fostering a culture of high-level technical expertise and professional growth.\nImplement strategies and patterns that define the next generation of professional game development tools.\nYou Have:\n5+ years of experience developing and deploying top-tier, user-facing applications.\nBachelor’s degree in Computer Science or equivalent experience\n2+ years of deep experience with C++.\nA versatile toolkit: Experience with UI frameworks like React, SwiftUI, Cocoa, Swift, or WPF is a significant plus.\nYou Are:\nAn Adventurer: You are excited by code quality and the challenge of improving it systematically through AI, experimentation, and industry standards.\nAnalytical & Organized: You have the ability to track numerous complex threads to a successful resolution.\nMission-Driven: You aren't just looking for a job; you want to go on an adventure to build a strong, scalable future for the world’s best professional game development application.\nFor roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below. The actual base pay is dependent upon a variety of job-related factors such as professional background, training, work experience, location, business needs and market demand. Therefore, in some circumstances, the actual salary could fall outside of this expected range. This pay range is subject to change and may be modified in the future. All full-time employees are also eligible for equity compensation and for benefits as described on this page.\nAnnual Salary Range\n$196,750—$243,290 USD\nRoles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted).\nRoblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Roblox also provides reasonable accommodations to candidates with qualifying disabilities or religious beliefs during the recruiting process.\nFor US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.","description_format":"text","description_chars":4638,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Mobile Games","Game Development","Metaverse"],"lifecycle":[{"event":"open","at":"2026-08-20T16:30:23Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 247 · green card filings: 82","filings_12m":247,"filings_prev_12m":236,"green_card_filings_12m":82,"median_offered_wage_usd":245038,"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":161}],"liveness":{"score":31,"band":"fade","label":"Fading","p_open":1,"p_active":0.521,"p_room":0.6,"age_days":57,"expected_fill_days":68,"reasons":["conf:0","stale_co","velocity","win:late","crowd:brand"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":243290,"is_top_pay":true},"html_url":"https://alion.io/job/roblox-senior-software-engineer-core-platform-and-systems","json_url":"https://alion.io/job/roblox-senior-software-engineer-core-platform-and-systems.json","meta":{"generated_at":"2026-10-18T02:05:11Z","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":3397,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"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":246},"rest":"https://alion.io/mcp/rest/get_company?id=246"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Froblox-senior-software-engineer-core-platform-and-systems"},{"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%2Froblox-senior-software-engineer-core-platform-and-systems"},{"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%2Froblox-senior-software-engineer-core-platform-and-systems"},{"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/roblox-senior-software-engineer-core-platform-and-systems\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Froblox-senior-software-engineer-core-platform-and-systems"}]}