{"id":23908,"date":"2026-01-23T18:20:20","date_gmt":"2026-01-23T18:20:20","guid":{"rendered":"https:\/\/www.pasona.com\/job\/sr-software-engineer-ai-function-development\/"},"modified":"2026-01-23T18:20:20","modified_gmt":"2026-01-23T18:20:20","slug":"sr-software-engineer-ai-function-development","status":"publish","type":"job_listing","link":"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/job\/sr-software-engineer-ai-function-development\/","title":{"rendered":"Sr. Software Engineer &#8211; AI Function Development"},"content":{"rendered":"<h2>Senior Software Engineer (AI Feature Development)<\/h2>\n<p><strong>Location:  <\/strong>Irvine, CA 92618<\/p>\n<p><strong>Work Style:<\/strong> Hybrid (3 days\/week in office)<\/p>\n<p><strong>Work Hours:<\/strong> 9:00 AM \u2013 6:00 PM (flexible)<\/p>\n<p><strong>Salary Range:<\/strong> $120,000 \u2013 $135,000 base<\/p>\n<p><strong>Experience Level:<\/strong> 5\u201310 years<\/p>\n<p><\/p>\n<p><strong>Work Authorization Requirement<\/strong>:  Due to company policy, we are unable to provide visa sponsorship now or in the future.<\/p>\n<p>Candidates must be legally authorized to work in the United States on a permanent basis.\u3000Applicants requiring visa sponsorship cannot be considered.<\/p>\n<p><\/p>\n<h3>Overview<\/h3>\n<p>We are seeking a versatile <strong>Senior Full-Stack Software Engineer<\/strong> with a strong passion for building <strong>AI-first products<\/strong>. This role blends traditional full-stack engineering with modern AI development. You will own the full lifecycle of AI-powered features\u2014from prompt engineering and LLM integration to API and frontend development\u2014delivering scalable, production-ready solutions with an exceptional user experience.  You will play a key role in bridging cutting-edge AI technologies with real-world, enterprise-grade software.<\/p>\n<p><\/p>\n<h3>Key Responsibilities<\/h3>\n<ul>\n<li><strong>End-to-End Feature Ownership:<\/strong> Design, develop, and deploy features (including AI-driven functionality), taking ownership across the entire stack\u2014from intuitive front-end interfaces to robust back-end systems.<\/li>\n<li><strong>AI-Powered System Architecture:<\/strong> Build and maintain scalable, production-ready architectures that integrate Large Language Models (LLMs) into core product workflows.<\/li>\n<li><strong>AI Implementation &amp; Optimization:<\/strong> Implement and refine AI pipelines using modern orchestration tools (e.g., LangChain, Vercel AI SDK) and prompt-engineering techniques to ensure high-quality outputs.<\/li>\n<li><strong>Full-Stack Engineering Excellence:<\/strong> Develop high-performance APIs and web services using modern TypeScript-based stacks, ensuring seamless data flow and an excellent user experience.<\/li>\n<li><strong>Rapid Prototyping &amp; Iteration:<\/strong> Operate effectively in a fast-paced, ambiguous environment by translating high-level AI concepts into functional, scalable software.<\/li>\n<li><strong>Cloud-Native Operations:<\/strong> Deploy, manage, and optimize containerized services to ensure reliability, performance, and scalability of AI-driven applications.<\/li>\n<\/ul>\n<p><\/p>\n<h3>Required Qualifications<\/h3>\n<ul>\n<li><strong>5\u201310 years of experience in web, backend, or full-stack development<\/strong><\/li>\n<li>Proven experience designing, building, and operating production systems<\/li>\n<li><strong>Hands-on experience developing or integrating AI \/ LLM-based features<\/strong><\/li>\n<li>Strong ability to learn, adapt, and work with evolving technologies and architectures<\/li>\n<li>Comfortable working in fast-moving, ambiguous product environments<\/li>\n<\/ul>\n<h3>Nice to Have<\/h3>\n<ul>\n<li>Experience with modern TypeScript stacks (React, Node.js, Bun, etc.)<\/li>\n<li>Experience with containerized or cloud-native systems (Docker, Kubernetes, etc.)<\/li>\n<li>Experience with AI development frameworks (Vercel AI SDK, LangChain)<\/li>\n<\/ul>\n<h3>Emerging \/ Planned Technologies<\/h3>\n<ul>\n<li>Rust (for performance-critical and reliability-sensitive components)<\/li>\n<\/ul>\n","protected":false},"author":0,"featured_media":0,"template":"","meta":{"_acf_changed":false,"_promoted":"","_job_location":"","_application":"","_company_name":"","_company_website":"","_company_tagline":"","_company_twitter":"","_company_video":"","_filled":0,"_featured":0,"_remote_position":0,"_job_salary":"","_job_salary_currency":"","_job_salary_unit":""},"job-categories":[],"job-types":[],"class_list":["post-23908","job_listing","type-job_listing","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sr. Software Engineer - AI Function Development - Pasona N A, Inc. | Your Career Partner<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/job\/sr-software-engineer-ai-function-development\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sr. Software Engineer - AI Function Development - Pasona N A, Inc. | Your Career Partner\" \/>\n<meta property=\"og:description\" content=\"Senior Software Engineer (AI Feature Development) Location: Irvine, CA 92618 Work Style: Hybrid (3 days\/week in office) Work Hours: 9:00 AM \u2013 6:00 PM (flexible) Salary Range: $120,000 \u2013 $135,000 base Experience Level: 5\u201310 years Work Authorization Requirement: Due to company policy, we are unable to provide visa sponsorship now or in the future. Candidates [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/job\/sr-software-engineer-ai-function-development\/\" \/>\n<meta property=\"og:site_name\" content=\"Pasona N A, Inc. | Your Career Partner\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/d3q8xutu1rneyj.cloudfront.net\\\/en\\\/job\\\/sr-software-engineer-ai-function-development\\\/\",\"url\":\"https:\\\/\\\/d3q8xutu1rneyj.cloudfront.net\\\/en\\\/job\\\/sr-software-engineer-ai-function-development\\\/\",\"name\":\"Sr. Software Engineer - AI Function Development - Pasona N A, Inc. | Your Career Partner\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.pasona.com\\\/en\\\/#website\"},\"datePublished\":\"2026-01-23T18:20:20+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/d3q8xutu1rneyj.cloudfront.net\\\/en\\\/job\\\/sr-software-engineer-ai-function-development\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/d3q8xutu1rneyj.cloudfront.net\\\/en\\\/job\\\/sr-software-engineer-ai-function-development\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/d3q8xutu1rneyj.cloudfront.net\\\/en\\\/job\\\/sr-software-engineer-ai-function-development\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.pasona.com\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Sr. Software Engineer &#8211; AI Function Development\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.pasona.com\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/www.pasona.com\\\/en\\\/\",\"name\":\"Pasona N A, Inc. | Your Career Partner\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.pasona.com\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Sr. Software Engineer - AI Function Development - Pasona N A, Inc. | Your Career Partner","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/job\/sr-software-engineer-ai-function-development\/","og_locale":"en_US","og_type":"article","og_title":"Sr. Software Engineer - AI Function Development - Pasona N A, Inc. | Your Career Partner","og_description":"Senior Software Engineer (AI Feature Development) Location: Irvine, CA 92618 Work Style: Hybrid (3 days\/week in office) Work Hours: 9:00 AM \u2013 6:00 PM (flexible) Salary Range: $120,000 \u2013 $135,000 base Experience Level: 5\u201310 years Work Authorization Requirement: Due to company policy, we are unable to provide visa sponsorship now or in the future. Candidates [&hellip;]","og_url":"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/job\/sr-software-engineer-ai-function-development\/","og_site_name":"Pasona N A, Inc. | Your Career Partner","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/job\/sr-software-engineer-ai-function-development\/","url":"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/job\/sr-software-engineer-ai-function-development\/","name":"Sr. Software Engineer - AI Function Development - Pasona N A, Inc. | Your Career Partner","isPartOf":{"@id":"https:\/\/www.pasona.com\/en\/#website"},"datePublished":"2026-01-23T18:20:20+00:00","breadcrumb":{"@id":"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/job\/sr-software-engineer-ai-function-development\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/job\/sr-software-engineer-ai-function-development\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/job\/sr-software-engineer-ai-function-development\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.pasona.com\/en\/"},{"@type":"ListItem","position":2,"name":"Sr. Software Engineer &#8211; AI Function Development"}]},{"@type":"WebSite","@id":"https:\/\/www.pasona.com\/en\/#website","url":"https:\/\/www.pasona.com\/en\/","name":"Pasona N A, Inc. | Your Career Partner","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.pasona.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/wp-json\/wp\/v2\/job-listings\/23908","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/wp-json\/wp\/v2\/job-listings"}],"about":[{"href":"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/wp-json\/wp\/v2\/types\/job_listing"}],"wp:attachment":[{"href":"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/wp-json\/wp\/v2\/media?parent=23908"}],"wp:term":[{"taxonomy":"job_listing_category","embeddable":true,"href":"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/wp-json\/wp\/v2\/job-categories?post=23908"},{"taxonomy":"job_listing_type","embeddable":true,"href":"https:\/\/d3q8xutu1rneyj.cloudfront.net\/en\/wp-json\/wp\/v2\/job-types?post=23908"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}