Senior Engineer (Core Web)
Core
Architect scalable, high-performant web systems and drive technical direction for complex features serving real estate customers.
Role type
Senior IC frontend engineer (web performance & architecture) (via careerplan.io/jobs/R40020-senior-engineer-core-web-at-costar)
Builds
Scalable, high-traffic web applications and platforms
Domain
Real estate technology
Deliverable
production ML models | product features
Required skills
React, TypeScript, Next.js, GraphQL, AWS, Docker, CI/CD, web performance optimization (Core Web Vitals), micro-frontend architecture, SSR, SPA
Preferred skills
Application security (OWASP), mentoring junior engineers, Agile methodologies
Technologies
React, TypeScript, Next.js, GraphQL, AWS, Docker
Responsibilities
Architect scalable software systems, optimize web performance (LCP, INP, CLS, TTFB), mentor junior engineers, manage on-call rotations and incident response, collaborate with Product and Design teams
Seniority
Senior, hands-on IC
