{"schemaVersion":"jobsearcher.job.v1","id":"8a43289aa7dfe50e7c8e9a97","url":"https://jobsearcher.com/jobs/8a43289aa7dfe50e7c8e9a97","canonicalUrl":"https://jobsearcher.com/jobs/8a43289aa7dfe50e7c8e9a97","title":"Full Stack Engineer","description":"Full Stack EngineerMust Haves:- 10+ years of experienceworked with any company among Top 50 IT Companies in USAComfortable with partial PST Time zone overlapProject OverviewWe're building high-quality evaluation and training datasets to improve how LargeLanguage Models (LLMs) interact with realistic software engineering tasks. Youwill have the opportunity to work on a diverse range of projects from helpingmodels traverse complex code bases to building agents that improve modelperformance.Role Overview — What Does a Typical Day Look Like?Work acrossmultiple different projects to improve LLM performance on code: sample projects·      Leading and delivering end-to-end agent use cases such ashome automation agents, coding copilots, or creative design assistants. ·      Collaborate with the team to identify  edge cases andambiguities in model behavior.·      Review and compare 3–4 model-generated code responses pertask using a structured ranking system.·      Evaluate code diffs for correctness, code quality, style,and efficiency. Provide clear, detailed rationales explaining the reasoningbehind each ranking decision.Required Skills & Experience·      Several years of software engineering experience, including2+ continuous years at a top-tier product company (e.g., Google, Stripe, Amazon,Apple, Meta, Netflix, Microsoft, Datadog, Dropbox, Shopify, PayPal, IBMResearch).·      Strong expertise in building full-stack applications anddeploying scalable, production-grade software using modern languages and tools.·      Deep understanding of software architecture, design,development, debugging, and code quality/review assessment.·      Proven ability to review code diffs and evaluatecorrectness, maintainability, and efficiency.·      Excellent oral and written communication skills for clear,structured evaluation rationales.","company":"X2 Logicsss","rawCompany":"x2 logicsss","city":"California","state":"MO","isRemote":false,"isActive":false,"createdAt":"2026-08-14T12:04:36.116Z","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":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Full Stack Engineer","description":"Full Stack EngineerMust Haves:- 10+ years of experienceworked with any company among Top 50 IT Companies in USAComfortable with partial PST Time zone overlapProject OverviewWe're building high-quality evaluation and training datasets to improve how LargeLanguage Models (LLMs) interact with realistic software engineering tasks. Youwill have the opportunity to work on a diverse range of projects from helpingmodels traverse complex code bases to building agents that improve modelperformance.Role Overview — What Does a Typical Day Look Like?Work acrossmultiple different projects to improve LLM performance on code: sample projects·      Leading and delivering end-to-end agent use cases such ashome automation agents, coding copilots, or creative design assistants. ·      Collaborate with the team to identify  edge cases andambiguities in model behavior.·      Review and compare 3–4 model-generated code responses pertask using a structured ranking system.·      Evaluate code diffs for correctness, code quality, style,and efficiency. Provide clear, detailed rationales explaining the reasoningbehind each ranking decision.Required Skills & Experience·      Several years of software engineering experience, including2+ continuous years at a top-tier product company (e.g., Google, Stripe, Amazon,Apple, Meta, Netflix, Microsoft, Datadog, Dropbox, Shopify, PayPal, IBMResearch).·      Strong expertise in building full-stack applications anddeploying scalable, production-grade software using modern languages and tools.·      Deep understanding of software architecture, design,development, debugging, and code quality/review assessment.·      Proven ability to review code diffs and evaluatecorrectness, maintainability, and efficiency.·      Excellent oral and written communication skills for clear,structured evaluation rationales.","datePosted":"2026-08-14T12:04:36.116Z","dateModified":"2026-08-14T12:04:36.116Z","hiringOrganization":{"@type":"Organization","name":"X2 Logicsss","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"California","addressRegion":"MO","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"8a43289aa7dfe50e7c8e9a97"},"url":"https://jobsearcher.com/jobs/8a43289aa7dfe50e7c8e9a97"}}