{"schemaVersion":"jobsearcher.job.v1","id":"b45739cbf8dacd69c325bd97","url":"https://jobsearcher.com/jobs/b45739cbf8dacd69c325bd97","canonicalUrl":"https://jobsearcher.com/jobs/b45739cbf8dacd69c325bd97","title":"Backend Engineer","description":"Backend EngineerLocation: San Francisco CA (On-site, 5 days/week)Relocation Assistance: YesJob SummaryThe biggest bottleneck in developing autonomous software engineers—and pushing coding LLMs past their current limitations—is access to abundant, high-quality post-training data.You’ll join a small product-focused team (4 engineers) building the core system. The ideal person is a true builder: someone who’s worked in fast-paced environments, knows how to ship products end-to-end, and thrives on ownership.Qualifications3–6 years of backend or infrastructure engineering experienceStrong product intuition and a proactive mindsetComfortable iterating rapidly based on user feedbackExperience designing backend systems using Go (or similar languages)Worked with secure code execution environments and sandboxingDesigned and scaled high-volume data pipelinesSolid understanding of distributed systems, asynchronous processing, and event-driven architectureSkilled in relational database schema design and SQL performance optimizationFamiliarity with observability/monitoring tools (e.g., Prometheus, Grafana)Experience with Kubernetes and container orchestrationProficient in IaC tools like Terraform and managing CI/CD pipelinesDeep understanding of cloud infrastructure, particularly AWSExperience designing RESTful APIs and backend servicesExcellent collaboration and proactive communication skillsStrong preference for candidates who:Have visible personal initiative (GitHub, side projects, personal websites)Have experience at early-stage startups (Series A–B), especially in gamification or dev-focused platformsHave 1–3 years of big tech or finance experience followed by startup workBonus: Strong academic background (not required)Not a fit if:You’re too senior and want to manage rather than buildYou’ve never demonstrated initiative outside of day jobsYou struggle with ownership or rapid iteration cyclesWhat You’ll DoBuild secure sandboxed systems to execute and evaluate user-submitted codeCreate agentic environments and AI-assisted feedback mechanismsDesign and maintain payments/rewards infrastructure for contributor incentivesOwn AWS-based cloud infrastructure and backend deploymentsDevelop performant, scalable backend systems in GoCollaborate closely with product/design on user-facing featuresImplement observability, monitoring, and deployment toolingTech StackLanguage: GoCloud: AWSInfra: Terraform, Kubernetes, SQLMonitoring: Prometheus, GrafanaCI/CD: Custom pipelines, GitHub ActionsWhy this role is excitingYou’ll be one of four engineers directly shaping the productHigh ownership, zero bureaucracy—your work hits production fastWork at the frontier of gamified data collection and AI coding model trainingSmall, elite team backed by $50M in recent fundingBuild something novel, challenging, and directly impactful to the future of LLMs","company":"Staffeagle","rawCompany":"staffeagle","city":"Millbrae","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-04-12T17:04:56.813Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Backend Engineer","description":"Backend EngineerLocation: San Francisco CA (On-site, 5 days/week)Relocation Assistance: YesJob SummaryThe biggest bottleneck in developing autonomous software engineers—and pushing coding LLMs past their current limitations—is access to abundant, high-quality post-training data.You’ll join a small product-focused team (4 engineers) building the core system. The ideal person is a true builder: someone who’s worked in fast-paced environments, knows how to ship products end-to-end, and thrives on ownership.Qualifications3–6 years of backend or infrastructure engineering experienceStrong product intuition and a proactive mindsetComfortable iterating rapidly based on user feedbackExperience designing backend systems using Go (or similar languages)Worked with secure code execution environments and sandboxingDesigned and scaled high-volume data pipelinesSolid understanding of distributed systems, asynchronous processing, and event-driven architectureSkilled in relational database schema design and SQL performance optimizationFamiliarity with observability/monitoring tools (e.g., Prometheus, Grafana)Experience with Kubernetes and container orchestrationProficient in IaC tools like Terraform and managing CI/CD pipelinesDeep understanding of cloud infrastructure, particularly AWSExperience designing RESTful APIs and backend servicesExcellent collaboration and proactive communication skillsStrong preference for candidates who:Have visible personal initiative (GitHub, side projects, personal websites)Have experience at early-stage startups (Series A–B), especially in gamification or dev-focused platformsHave 1–3 years of big tech or finance experience followed by startup workBonus: Strong academic background (not required)Not a fit if:You’re too senior and want to manage rather than buildYou’ve never demonstrated initiative outside of day jobsYou struggle with ownership or rapid iteration cyclesWhat You’ll DoBuild secure sandboxed systems to execute and evaluate user-submitted codeCreate agentic environments and AI-assisted feedback mechanismsDesign and maintain payments/rewards infrastructure for contributor incentivesOwn AWS-based cloud infrastructure and backend deploymentsDevelop performant, scalable backend systems in GoCollaborate closely with product/design on user-facing featuresImplement observability, monitoring, and deployment toolingTech StackLanguage: GoCloud: AWSInfra: Terraform, Kubernetes, SQLMonitoring: Prometheus, GrafanaCI/CD: Custom pipelines, GitHub ActionsWhy this role is excitingYou’ll be one of four engineers directly shaping the productHigh ownership, zero bureaucracy—your work hits production fastWork at the frontier of gamified data collection and AI coding model trainingSmall, elite team backed by $50M in recent fundingBuild something novel, challenging, and directly impactful to the future of LLMs","datePosted":"2026-04-12T17:04:56.813Z","dateModified":"2026-04-12T17:04:56.813Z","hiringOrganization":{"@type":"Organization","name":"Staffeagle","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Millbrae","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"b45739cbf8dacd69c325bd97"},"url":"https://jobsearcher.com/jobs/b45739cbf8dacd69c325bd97"}}