✨ AI Summary
This Senior Core Infrastructure Engineer role focuses on designing, building, and operating high-performance, highly reliable DNS services. The engineer will design and implement DNS data plane components, build services in Go, C, Java, or Python, and optimize system performance. Responsibilities include end-to-end ownership of data plane components, developing observability tools, improving reliability through fault-tolerant design, and collaborating with other teams. The role requires technical leadership through reviews and mentorship, and proactive identification and resolution of production issues.
Required qualifications include at least five years of experience with large-scale distributed infrastructure in SaaS, cloud, or hybrid-cloud environments, and at least three years of hands-on experience with Linux operating systems. Strong experience building and operating production-grade distributed systems or network services, proficiency in Go, C, Java, or Python, and a solid understanding of Linux systems, networking fundamentals, and performance profiling are essential. Demonstrated experience with highly available systems and safe production rollouts is also required.
🎁 Benefits & Perks
Medical, dental, and vision insurance, including expert medical opinion; Short term disability and long term disability; Life insurance and AD&D; Supplemental life insurance (Employee/Spouse/Child); Health care and dependent care Flexible Spending Accounts; Pre-tax commuter and parking benefits; 401(k) Savings and Investment Plan with company match; Paid time off: Flexible Vacation (13 days annually for the first three years of employment and 18 days annually for subsequent years of employment for full-time employees); 11 paid holidays; Paid sick leave (72 hours upon date of hire, refreshes each calendar year, up to a maximum cap of 112 hours); Paid parental leave; Adoption assistance; Employee Stock Purchase Plan; Financial planning and group legal; Voluntary benefits including auto, homeowner and pet insurance. May be eligible for bonus and equity.
Requirements
Requires at least five years of experience building, managing, or operating large-scale distributed infrastructure in SaaS, cloud, or hybrid-cloud environments, with at least three years of hands-on experience with Linux operating systems. Strong experience building and operating production-grade distributed systems or network services is essential. Proficiency in Go, C, Java, or Python, and a solid understanding of Linux systems, networking fundamentals, TCP/UDP, sockets, concurrency, and performance profiling are required. Demonstrated experience designing highly available systems and delivering safe production rollouts using practices such as canaries, progressive deployments, and feature flags is also necessary.
Description
Designs, implements, and optimizes components in distributed systems with an emphasis on scalability, resiliency, and operability. Delivers features and load/performance tests; leverages data plane platforms and distributed state tools for high-volume retrieval, storage, and processing; and reviews peers’ implementations for scalability compliance. Builds fault-tolerant paths (redundancy, replication, automatic failover), applies recovery‑oriented principles, and implements retries, circuit breakers, and timeouts. Proactively detects and mitigates issues via tests, alarms, dashboards, and telemetry; authors runbooks and participates in incident response and RCAs. Implements standard replication and synchronization, develops automation/IaC for troubleshooting and maintenance, and applies advanced security controls (encryption, access, remediation) while ensuring change, compliance, and documentation standards are met.