{"id":1262364,"url":"https://alion.io/job/roblox-corporation-senior-fullstackbackend-software-engineer","title":"Senior Fullstack/Backend Software Engineer","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":21,"ghost_share":0,"stale_share":0.857,"repost_share":0,"time_to_fill_p50_days":70,"computed_at":"2026-09-26T05:45:00Z"}},"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":["San Mateo, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":207000,"max_usd":383000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1999},"experience_years_min":8,"visa_sponsorship":true,"relocation_package":false,"has_equity":true,"technologies":[{"name":"C#","optional":false},{"name":"C++","optional":false},{"name":"Java","optional":false}],"status":"closed","first_seen_at":"2026-02-17T21:24:18Z","employer_posted_date":"2026-09-25","last_verified_at":"2026-09-26T02:45:35Z","board_verified":false,"closed_at":"2026-09-26T02:45:35Z","days_open":220,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":220},"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 Principal Software Engineer on the User Connections team, you will define the backend systems that power the social ecosystem ranging from Friending, Profiles (Identity + Expression), and other Social engagement. You will tech lead the engineering team, influence service architecture designs, and guide the team’s roadmap both technical and product. \n\nYour work will power the Roblox ecosystem, helping people recognize and connect with friends & interests on Roblox, express themselves, and discover & engage with the best of Roblox through their connections. You will own critical features used by millions of users daily, such as profiles, names, online presence, co-play tools, and social proof, as well as develop new zero-to-one features. You will drive company-level objectives for user engagement.\n\nIf you are an experienced developer with a deep understanding of large scale systems and enjoy shaping engineering vision, you’ll be right at home within our highly-skilled and product-focused team.\n\nThis role is based at Roblox HQ in San Mateo, CA (no remote option).\n\nYou Will:\nTech lead the engineering team\nLead the design and implementation of scalable backend systems to support hundreds of millions of users.\nEnforce high quality standards throughout feature development and iteration.\nCollaborate with other engineering, product, and design teams to define and build platform features to enable users to express their identities \nMentor engineers and uplevel the team\n\nYou Have:\n\n8+ years of experience designing, building, and supporting highly available and large-scale distributed fault tolerant services in production environments\nExtensive knowledge of server-side architecture and design principles, with proficiency in compiled languages such as C#, Java, C++, or others.\nBachelor's degree or higher in Computer Science or a related field.\n(Bonus) Experience with social products is a plus.\n\nYou Are: \nProactive: You operate with a sense of urgency, initiating conversations and workflow that pushes team projects and people forward \nA Leader: You have initiated and facilitated challenging technical decisions across multiple teams and organizations.\nScrappy: You are willing to dive into any tech stack to solve problems, and can easily adapt to any situation when the need arises and come up with the right solution.\nA product owner: You champion for changes that align with the needs of our users\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$227,370—$278,530 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":4742,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Mobile Games","Game Development","Metaverse"],"lifecycle":[{"event":"open","at":"2026-09-25T20:54:44Z"},{"event":"close","at":"2026-09-26T02:45:35Z"}],"liveness":null,"pay":null,"html_url":"https://alion.io/job/roblox-corporation-senior-fullstackbackend-software-engineer","json_url":"https://alion.io/job/roblox-corporation-senior-fullstackbackend-software-engineer.json","meta":{"generated_at":"2026-09-27T04:01:54Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":3758,"day_limit":5000,"remaining_today":1242,"minute_limit":60,"resets_at":"2026-09-28T00:00:00Z"}}}