Twilio
Senior
Lead Twilio's Flex Billing & Backend team building the contact-center platform's core services
This is an Engineering Manager role on Twilio's Flex product, owning the Flex Billing & Backend engineering team that extends Flex's contact-center feature set. The JD asks for 10+ years overall with 5+ years specifically managing software teams, plus hands-on technical fluency across distributed systems, REST APIs, and observability tooling.
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What this interview tests
- Managing and growing a software engineering team (workstream ownership, coaching)
- Architecture for always-available, distributed, 24x7 cloud systems
- Technical fluency: REST APIs, Java/Go, MySQL, Docker/Kubernetes, CI/CD
- Observability and operational monitoring (Datadog, Grafana, Prometheus)
- Communicating technical tradeoffs to cross-functional stakeholders
Common question themes
Tell me about managing multiple engineering workstreams at once
How have you built or operated a highly available distributed system
Describe a time you championed an engineer's growth over short-term output
How do you instill agile practices and CI/CD discipline in a team
Walk through owning a service end-to-end, from design to on-call monitoring
Do you have experience with contact center or billing systems
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