{"id":53139,"url":"https://alion.io/job/superconductor-principal-web-developer-rails","title":"Principal Web Developer (Rails)","company":{"id":13607,"name":"Superconductor","domain":"superconductor.com","url":"https://alion.io/company/superconductor","size_band":"1-10","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["El Cerrito, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":144000,"max_usd":291000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1093},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Slack","optional":false},{"name":"Claude Code","optional":true},{"name":"Copilot","optional":true},{"name":"Cursor","optional":true},{"name":"Tailwind CSS","optional":true}],"status":"live","first_seen_at":"2026-03-06T23:18:54Z","employer_posted_date":"2026-03-06","last_verified_at":"2026-10-17T15:49:46Z","board_verified":true,"closed_at":null,"days_open":224,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":224},"description":"About Superconductor\nSuperconductor is building the autonomous software organization - a platform where agents don't wait for instructions, but find work everywhere: in customer emails, bug reports, session replays, Slack threads, X posts, etc. Agents that work while you sleep.\nWe're a team of 7, backed by $7M in funding, and we intend to stay below ~25 humans hopefully forever. That means every hire matters enormously, and we compensate accordingly with highly competitive salary and equity.\nWe have been building software together for over a decade. We formerly co-founded Gradescope, an AI-powered education grading platform used by millions of students worldwide. Previously, we were AI PhD students at UC Berkeley. All in all, we are four developers, one designer, and two generalist operators, and we all wear multiple hats every day.\nOur Values\nCustomer obsession. We see every customer interaction - every support email, every bug report, every piece of feedback - as a chance to earn trust and build something better. Customer communication is our differentiator, not overhead.\n\nSpeed with stability. We move fast, but we do not break things. We know that if something breaks, we're the ones fixing it - sometimes at night. We'd rather invest in getting it right the first time.\n\nLiving in the future. We use Superconductor to build Superconductor. We adopt our own tools before anyone else and push them until they break. If something feels like the old way of building software, we question it.\n\nSmall team, high standards. Every person on the team has outsized impact, outsized ownership, and outsized responsibility.\n\nWorking at Superconductor\nHybrid from our East Bay office: 3 days in our easily BART-accessible office, 2 days from home.\n\nHowever, our agents work 24/7, and there's real value in having humans cover the night shift. If you are an exceptional candidate, please apply even if you're not in the Bay Area.\n\nCompensation: Highly competitive salary and meaningful equity - we're a small team that plans to stay small.\n\nBenefits: Flexible PTO, parental leave, health insurance, employee-friendly equity terms, and premium equipment.\n\nAnd of course, a practically unlimited token budget!\n\nThe Role\nYou are the architect, reviewer, and quality guardian for a fleet of AI coding agents. 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You are the last line of defense before code reaches production.\nYou'll work at the intersection of deep Rails expertise and AI-augmented development, directing agents the way a senior architect directs a team - except your team never sleeps and is as good as you make it.\nA realistic goal: you will ship more quality code to production in your first month than you did in all of 2025.\nWhat You'll Do\nReview code produced by AI agents for correctness, maintainability, security, and adherence to our standards\n\nDefine and evolve the application architecture, module boundaries, and system design principles that agents follow\n\nWrite architectural decision records, coding standards, and agent instructions that shape how code gets generated\n\nSee customer feedback flow directly into agent-generated tickets and code - and make sure that code is worthy of the customer who asked for it\n\nJump into production when things break - you've been the person on-call before and you know how to 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