{"domain": "costar.com", "user": "Import costar.com", "isWillingToRelocate": false, "isUserAuthenticated": false, "isUserETXCandidate": false, "isDomainETX": false, "isCareerPlannerEnabled": false, "isMyApplicationsEnabled": false, "showVeteranEmployerSignUp": false, "candidate": {"enc_id": 0, "fullname": "", "firstname": "", "lastname": "", "skills": [], "email": "", "phone": "", "location": "", "location_detail": {}, "filename": null, "starred_positions": [], "resumeUrl": "", "onboardingCompleted": false, "isUserInPcsIjp": false, "linkedinUrl": ""}, "branding": {"max_applications_apply": 5, "enableTalentNetwork": 1, "showJobId": 1, "hideJobCart": true, "homePageHeroBanner": {"useImage": 0, "opacity": 0, "hideInMobileView": false, "title": "", "image": "https://static.vscdn.net/images/careers/demo/costar-sandbox/1663609570::Hero-Banner-1905x288.jpg"}, "companyName": "CoStar Group", "postApplyText": "Thank you for your interest in CoStar Group and for taking the time to apply. We\u2019ll review your application shortly to learn more about you, your experience and skills, and will be in touch if your qualifications match our needs for the role. ", "postReferralText": "Our talent acquisition team will review. You will find any updates in the My Referrals section in Eightfold. ", "favicons": {"favicon": "https://static.vscdn.net/images/careers/demo/costar-sandbox/1664304415::favicon+-+updated"}, "privacy": {"text": "I have read and agree to <a href=\"https://www.costar.com/about/privacy-notice\">CoStar Group's Data Privacy Notice</a>.", "button": "Agree", "title": "Data Privacy Notice"}, "navBar": {"opacity": 0.9, "color": "#ffffff", "image": "https://static.vscdn.net/images/careers/demo/costar-sandbox/1663785509::CSG-Logo-White@2x.png", "link": "https://www.costargroup.com/careers", "background": "#000000"}, "custom_html": {"header": "", "page-footer": "", "footer": "<style>a,a:hover,a:focus,a:active {text-decoration: none; color: inherit}a {-webkit-transition: all .25s ease-in-out;transition: all.25s ease-in-out}.ct-footer-post {padding: 20px 0; }.ct-footer-post .inner-left,.ct-footer-post .inner-right {padding: 20px 0}.ct-footer-post ul {list-style: none; padding-left: 0; margin: 0 -20px;}.ct-footer-post ul li { display: inline-block;margin: 0 20px}.ct-footer-post a {color:#ffffff}.ct-footer-post a:hover {color:#ffffff}.ct-footer-post p {color: #ffffff}.footer a {font-weight: 300;}@media (max-width: 768px).ct-footer-post p { display: inline-block } .ct-footer-post p + p { padding-left: 50px }}@media (max-width:991px) {.ct-footer-post { text-align: center;}</style><footer style=\"background:#000000 !important;\"><div class=\"ct-footer-post\" style=\"background:#000000 !important;\"><div class=\"container\" style=\"padding-bottom:15px;\"><div class=\"col-xs-12\" style=\"text-align:center; padding-top:5px; padding-bottom:5px;\"><a href=\"https://www.costargroup.com/\" title=\"Company\" target=\"_blank\" style=\"color:#fff!important; font-size: 18px; font-weight:400; line-height:26px; border-right: 1px solid #fff;padding-right: 20px;padding-left: 20px;\">Company</a><a href=\"https://www.costar.com/about/privacy-notice\" title=\"\" target=\"_blank\" style=\"color:#fff!important; font-size: 18px; font-weight:400; line-height:26px; border-right: 1px solid #fff;padding-right: 20px;padding-left: 20px;\">Privacy Notice</a><a href=\"https://www.costargroup.com/home/contact\" title=\"\" target=\"_blank\" style=\"color:#fff!important; font-size: 18px; font-weight:400; line-height:26px;padding-left: 20px;\">Contact us</a></div><div class=\"col-xs-12\" style=\"text-align:center; padding-top:5px; padding-bottom:5px;font-size: 18px; font-weight:400;color: #ffffff\"><h2 class=\"footer-sub-title\" style=\"font-size:18px !important;\">Follow Us</h2></div><div class=\"col-xs-12\" style=\"text-align:center; padding-top:5px; padding-bottom:40px;\"><a href=\"https://www.linkedin.com/company/costar-group\" target=\"_blank\" style=\"padding-left:50px; padding-right: 50px;\"><img src=\"https://static.vscdn.net/images/careers/demo/costar-sandbox/1666207100::linkedin-icon\"></a><a href=\"https://www.instagram.com/CoStarGroup/\" target=\"_blank\" style=\"padding-right: 50px;\"><img src=\"https://static.vscdn.net/images/careers/demo/costar-sandbox/1666207113::instagrm-icon\"></a><a href=\"https://twitter.com/CoStarGroup\" target=\"_blank\" style=\"padding-right: 50px;\"><img src=\"https://static.vscdn.net/images/careers/demo/costar-sandbox/1666207087::twitter-icon\"></a><a href=\"https://www.facebook.com/CoStarGroup\" target=\"_blank\" style=\"padding-right: 50px;\"><img src=\"https://static.vscdn.net/images/careers/demo/costar-sandbox/1666207126::facebook-icon\"></a></div><div class=\"ef-styles-2020\" style=\"padding-bottom: 5px !important; padding-top: 5px !important;\"><p class=\"body-text-2\"><a href=\"https://eightfold.ai\" title=\"Visit Eightfold.ai homepage\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#ffffff ;\">Powered by <img src=\"https://static.vscdn.net/images/eightfold_logo.png\" alt=\"\" width=\"20\" height=\"20\" align=\"middle\">  eightfold.ai #WhatsNextForYou</a></p></div></div></div></footer>"}, "custom_style": {"font": "", "css": ".reset-filters {color:#0054a6 !important;}.back-to-all-jobs {color: #0054a6 !important;}.back-to-all-jobs:hover {color: #ADD8E6 !important;}.remove-from-job-cart-button {color: #FFF !important;}.remove-from-job-cart-button:hover {color: #FFF !important;}.perk-icon{color: #0054a6 !important}.btn-secondary {border-color: #0054a6 !important;color: #0054a6 !important;}.btn-secondary:hover{border-color: #ADD8E6 !important;color: #ADD8E6 !important;}.fa-share {color: #0054a6 !important}.fa-share:hover {color: #ADD8E6 !important}.go-button {background: transparent; color:#0054a6 !important;border-color: #0054a6 !important}.advanced-options-button {color: #0054a6;}.go-button:hover {color: #ADD8E6 !important;border-color: #ADD8E6 !important}.advanced-options-button:hover {color: #ADD8E6 !important}.job-cart-button {border: 1px solid #0054a6 !important;background: #0054a6 !important;color:#ffffff !important;}.job-cart-button:hover{border: 1px solid #ADD8E6 !important;background: #ADD8E6 !important;color:#ffffff !important;}.add-to-job-cart-button {background-color: #0054a6 !important; border-color: #0054a6 !important; color: #FFF !important;}.add-to-job-cart-button:hover {background-color: #ADD8E6 !important; border-color: #ADD8E6 !important; color: #FFF !important;}.position-apply-button {background-color: #0054a6 !important; border-color: #0054a6 !important;}.position-apply-button:hover {background-color: #ADD8E6 !important; border-color: #ADD8E6!important;}.btn {border-radius: 3px; !important;} .search-results-main-container .card-selected { border-left-color: #0054a6!important;}.position-card .position-title {color:#000000 !important;} .all-positions-header h1 {color:#000000 !important;}.apply-form .btn-primary {border: 1px solid #0054a6 !important; color:#ffffff !important; background: #0054a6 !important; border-radius: 3px; !important;}.apply-form.btn-primary:hover{border: 1px solid #000000 !important;} .circle-number-indicator {background: #0054a6 !important;}.pillContainer .pillTitle {color: #000000 !important;}.position-facets h3 {color: #000000; text-align: left !important;} .card {text-align:left !important;}.personalization-bar-pre-upload {background-color: #fff; color: #000000 !important;}.get-matched-button {background-color: #0054a6 !important; border-color: #0054a6 !important;}.get-matched-button:hover {background-color: #ADD8E6 !important; border-color: #ADD8E6 !important;} .position-full-card {color:#000000 !important;} .position-title {color:#000000 !important;} .position-sub-title {font-size: 18px !important;font-weight: 700 !important;color: #000000 !important;} .related-blog .blog-title {font-size: 16px !important;font-weight: 700 !important;color: #000000 !important;}.custom-content-title {font-size: 18px !important;font-weight: 700 !important;color: #000000 !important; align-self: flex-end !important;}.join-tn-link{color: #ffffff !important;}.pillTitle.line-clamp.line-clamp-3  {color: #000000 !important;} #eightfold-chatbot .open-chat-bot .open-chat-bot-header {background: #000000;} #eightfold-chatbot .open-chat-bot .chat-bot-title {margin-right: 90px !important;} #eightfold-chatbot #chat-bot-image {background-color: black !important; padding: 4px !important;} .search-results-main-container .position-cards-container .card-selected {border-left: 8px solid #0054a6 !important;} #eightfold-chatbot #chat-bot-image {border: 3px solid #ffffff !important; border-radius: 50px !important} .botui-message-content {max-width: 85% !important; word-wrap: break-word;} div.legend-container, div.donut-container {display:none;} .perk {padding-right: 30px !important;} .perk .perk-icon {color: #0054a6 !Important;}"}, "customContent": {"positionSections": [{"title": "", "body": ""}]}, "perks": [{"title": "Benefits", "image": "https://static.vscdn.net/images/careers/demo/costar-sandbox/1671555211::Benefits-Icon-Health.png", "description": "Comprehensive medical, dental and vision plans are available in addition to wellness plans and more. Select \"Learn about employee benefits\" in the Chat Bot for more!"}, {"title": "Competitive Pay", "image": "https://static.vscdn.net/images/careers/demo/costar-sandbox/1671555231::Benefits-Icon-Pay.png\n", "description": "CoStar Group proudly offers competitive pay as benchmarked against the market and reviewed regularly."}], "page_title": "Careers at CoStar Group", "job_page_title": "Careers at CoStar Group", "page_description": "Careers at CoStar Group", "page_image": "https://static.vscdn.net/images/careers/demo/costar-sandbox/1663785509::CSG-Logo-White@2x.png", "talentNetworkBranding": {"custom_html": {"header": "", "footer": ""}}, "talentNetworkHeroBanner": {"useImage": 1, "opacity": 0, "hideInMobileView": false, "image": "https://static.vscdn.net/images/careers/demo/costar-sandbox/1663609570::Hero-Banner-1905x288.jpg", "title": "CoStar Group Talent Network"}, "custom_head_scripts": {"HOME_PAGE_LOAD": "", "SINGLE_POSITION_PAGE_LOAD": "", "APPLY_FORM_PAGE_LOAD": "", "SUCCESS_FORM_PAGE_LOAD": "", "JOIN_TALENT_NETWORK_PAGE_LOAD": ""}, "applyButton": {"background": "#0054a6"}, "recaptcha_enabled": 1, "showLoggedOutNotificationsPrivacyPolicy": true, "hideEightfoldBranding": false, "customJobDescEnhancedTableGate": false}, "pid": "446719205524", "positions": [{"id": 446719205524, "name": "LoopNet - Lead Software Engineer", "posting_name": "LoopNet - Lead Software Engineer", "location": "Irvine, California, United States of America", "locations": ["Irvine, California, United States of America"], "hot": 0, "department": "Technology - CoStar Group (Frank Simuro)", "business_unit": "Software Engineering", "t_update": 1792160935, "t_create": 1782086400, "ats_job_id": "R39201", "display_job_id": "R39201", "type": "ATS", "id_locale": "R39201-en", "job_description": "Own the technical design and delivery of features across a high-traffic full-stack platform, applying OO design principles and proven design patterns for reusability, maintainability, scalability, performance and security. Set and uphold engineering standards, drive design reviews, code reviews, and testing practices across the team. Write unit-testable, well-tested C# and TypeScript, and contribute to shared product frameworks and platform libraries. Lead full-stack development across the current platform and legacy codebases including modernizing, refactoring, and integrating where needed. Mentor and grow engineers; break down ambiguous problems into deliverable work and build consensus across teams. Partner with product to deliver software that meets specifications and performance SLAs, and use AI coding tools (Claude Code, GitHub Copilot, or equivalent) to accelerate development, refactoring, and debugging. Own production quality, observability, performance, and reliability of the services you ship. Continuously evaluate emerging technologies to identify trends and best practices that strengthen CoStar's platform and engineering practices Bachelor's degree from an accredited, not-for-profit, in-person University or College A track record of commitment to prior employers. 9+ years of production development experience with C# / .NET (or .NET Core). Proficient in building production grade level front-ends apps in TypeScript with a modern framework like React, Angular, or Vue. A demonstrable track record of building, launching, and operating successful full-stack products and platforms at scale. Hands-on experience with AWS (S3, SQS, DynamoDB, ElastiCache), Apache Kafka, and Datadog. Strong grasp of writing unit-testable software with a disciplined approach to unit, performance, and automation testing. Leverage AI Coding Tools for development, refactoring, and debugging (Claude Code, GitHub Copilot or equivalent). Hands-on experience working with build pipelines and CI/CD. Experience mentoring engineers and leading technical initiatives through delivery. Proven experience with AI-driven development workflows (Claude Code, GitHub Copilot, or equivalent) used to ship complete projects to production. Proven experience of working on applications hosted on multi-data centers both on-prem and clouds. Experience internationalizing and localizing applications for multiple regions and languages. Experience building SEO-facing, public-traffic web applications. Hands-on experience improving UI/UX, translating designs into polished, user-friendly interfaces. Relational database design (MS SQL or MySQL) including query performance tuning. Application infrastructure security knowledge and fluency with Git-based workflows.", "stars": 0.0, "medallionProgram": null, "location_flexibility": null, "work_location_option": "onsite", "canonicalPositionUrl": "https://costar.eightfold.ai/careers/job/446719205524", "isPrivate": false}], "isFallback": true, "debug": {}, "count": 1, "personal_message": "We thought you would be interested in this position.", "scheduling": {"minTime": 9, "limit": 10, "maxTime": 17, "increments": 60, "minTimeslots": 3}, "userTitles": [], "enableTargetedResume": false, "query": {"query": "", "location": "", "department": [], "skill": [], "seniority": [], "pid": "446719205524"}, "singleview": true, "see_all_jobs": true, "recommended_star_threshold": 4.0, "chatbot": true, "iframeImplementation": null, "pcsApplyFormV2Enabled": true, "allowedFileTypes": {}, "pcsTextConfiguration": {}, "hideDepartment": true, "pcsOctupleMigration0Enabled": true, "pcsOctupleMigration1Enabled": false, "replaceUrlOnGoBack": true, "isEuAiActLabellingEnabled": false, "pcsRedesignedNuxEnabled": true, "readmoreInstructionEnabled": false, "userActivityTimeout": 86400000, "userActivityTimeoutEnabled": 1, "isLoggedInPcsEnabled": false, "sortByConfig": [{"id": "relevance", "label": "Relevance"}, {"id": "new", "label": "New to Old", "value": "if(field(position.ats_data.creation_ts, max), field(position.ats_data.creation_ts, max), field(position.timestamp, max)) desc"}, {"id": "old", "label": "Old to New", "value": "if(field(position.ats_data.creation_ts, max), field(position.ats_data.creation_ts, max), field(position.timestamp, max)) asc"}], "searchBoxConfig": {}, "excludePrivatePositions": true, "eeocFilterKeywords": ["veteran", "disability", "gender", "race", "citizen", "visa", "ethnicity"], "disableScrollLoadPositionSidebar": false, "locationFlexibilityFrontendEnabled": false, "workLocationOptionFrontendEnabled": true, "remoteFlexibleJobsFilterEnabled": false, "loggedOutNotificationsEnabled": true, "candidateLogin": {"postApplyReviewLink": {"enabled": true, "url": "/api/apply/v2/profile/review/initialize_user?domain=costar.com", "title": "What's next? Increase your chances of getting hired!", "message": "Knowing more about you helps us review your application faster. Enrich your profile by adding more skills, awards, and other recognition.", "buttonText": "Review my profile", "verifyEmailTitle": "Let's verify your email", "verifyEmailText": "Click the link in the email to continue reviewing your profile. If you do not immediately see the email, check your spam folder."}}, "prepopulateApplyFormEnabled": true, "prepopulateSettings": {"prepopulateCheckboxText": "Save my answers for future applications", "showPrepopulateCheckbox": false}, "candidateBuildProfile": {}, "themeBuilderUser": null, "mandatoryFields": ["firstname", "lastname", "email", "phone"], "blindfoldWidgetPcsGate": false, "pcsApplyFormLocationGate": false, "t3sEnabled": false, "uploadApplicationAnswers": false, "candidateAuthV2Enabled": true, "loggedOutSavedSearchEnabled": false, "locationRadiusTypeToggleEnabled": true, "incompleteApplicationsEnabled": false, "incompleteApplicationConfig": {}, "fallbackPcsJdGate": true, "enableResumeCoach": false, "isPcsEnabled": true, "phoneWithCountryCodeEnabled": true, "notificationSuggestVerificationToken": null, "chatbotxConfig": {"enabled": false, "featureAccessFlags": {"resumeCoachCardFlags": {"showApplyWithResume": true, "showEditResume": true}, "positionCardFlags": {"showAddToJobCart": false}, "showAiPoweredText": true}}, "pcsOptionalResumeWithJobcartGate": false, "loggedInCandidate": {}, "hamburgerMenuEnabled": false, "pcsAccessibilityHomeEnabled": true, "pcsAccessibilityApplyFormEnabled": true, "showLanguageDropdown": false, "languages": [{"value": "en", "title": "English"}, {"value": "fr", "title": "Fran\u00e7ais"}], "displayLanguage": "en", "installed_app_data": [], "singlePageCareersNavbarGate": false, "customJobDescTranslationSkipList": [], "all_applicable_locations": [{"location": "Irvine, California, United States of America", "city": "Irvine", "state": "CA,US", "country": "US"}]}