> Markdown version of [/jobs/ext/4625567-staff-engineer-platform-systems](https://www.wearedevelopers.com/jobs/ext/4625567-staff-engineer-platform-systems). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Staff Engineer, Platform & Systems - **Company:** Retell Ai - **Location:** Redwood City, CA, United States - **Experience:** Expert - **Salary:** $240,000 - $300,000 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), System Configuration, Software Debugging, Distributed Systems, Python (Programming Language), Node.Js, Systems Architecture, Core Voice Platform, Real Time Systems, ReactJS, Backend, Front End Software Development, Software Coding - **Published:** November 7, 2026 - **Apply:** https://www.juju.com/job/28_25304_f89c5133b046b30f1ea592ef46a6a905 ## About the Role * You have 9+ years of experience building and operating production systems. * You've operated at Staff or Principal level (or equivalent scope), even if the title wasn't official. * You're strong in systems design and can reason clearly about tradeoffs. * You move fast but care deeply about correctness, reliability, and maintainability. * You're comfortable owning ambiguous problems and defining the path forward. * You've built or scaled platforms used by real customers at meaningful volume. * You enjoy being hands-on - writing code, reviewing designs, and unblocking teams. Bonus points if you've worked with: distributed systems, Voice AI, real-time systems, APIs at scale, infra/platform work, or developer-facing products. ## Description We're looking for a Principal/Staff Engineer to help own the technical direction of our core platform. This is a staff-level IC role for someone who thrives in ambiguity, moves fast, and raises the bar for everyone around them. You'll work across systems, infrastructure, and product surfaces - partnering closely with engineering, product, and leadership to scale what's already working and build what's next. This is not a "ticket taker" role. You'll define problems, design solutions, and ship., * Own the design and evolution of core platform and systems architecture. * Lead complex technical initiatives end-to-end, from concept to production. * Make high-leverage technical decisions that balance speed, reliability, and scale. * Raise the technical bar through design reviews, mentoring, and hands-on leadership. * Partner closely with product to translate business needs into robust technical solutions. * Identify and resolve performance, scalability, and reliability bottlenecks. * Help define engineering best practices as we scale the team and platform., * Technical Interview (45 min): Practical coding session focused on code fluency and system design (For frontend roles, we will focus on React-specific questions. For backend roles, we take a technology-agnostic approach.) * Technical Interview (45 min): This is a systems design-focused interview. There will be no coding; we want to assess your skills in systems design. * Onsite/Virtual Interviews (2-3 hrs): Hosted in our office if located in the Bay Area or virtual, with three rounds: + Practical Coding: Tackle real-world coding tasks with debugging. + System Design: Architect a production-ready system. + Tools & Automation: Build automations or improve workflows in any basic environment setup like python, java, node.js, etc.