Software Engineer (L3) Email

Location: Remote - US; the role is not eligible to be hired in California, Connecticut, New Jersey, New York, Pennsylvania, or Washington. Occasional travel may be required for project or team meetings.

Salary: $138,700–$173,400 in Colorado, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, Vermont, or Washington, D.C.; $146,800–$183,600 in New York, New Jersey, Washington State, or California outside the San Francisco Bay Area; $163,100–$203,900 in the San Francisco Bay Area, California. Equity and corporate bonus plan eligibility may apply.

Company

Twilio provides communications solutions used by hundreds of thousands of businesses and millions of developers worldwide.

What you will do

• Develop, deploy, and manage highly available, massive-scale distributed email systems processing more than 12 billion emails during peak events.
• Modernize backend systems and optimize Go-based microservices for high throughput, low latency, and reliability.
• Design and operate cloud infrastructure across AWS and Microsoft Azure using Terraform.
• Build observability through standardized metrics, alerts, and distributed tracing across core data pipelines.
• Identify technical debt, bottlenecks, and single points of failure while leading platform refactoring and technical sprint planning.
• Mentor junior engineers and collaborate with product management and technical leadership.

Requirements

• 4+ years of professional software engineering experience building and operating resilient backend services at scale.
• Practical experience using AI-assisted development tools such as Claude Code for code generation, testing, and debugging.
• Strong production experience writing clean, idiomatic, highly concurrent Go, Java, or Python.
• Experience deploying and managing production workloads in cloud environments, ideally including AWS core services and Microsoft Azure equivalents.
• Proficiency with Terraform for infrastructure automation and environment parity.
• Strong theoretical and practical understanding of distributed datastores, caching layers, and asynchronous event streaming such as Kafka or similar queuing systems.
• Strong computer science fundamentals, including data structures and self-healing cloud architectures.

Nice to have

• Experience managing high-throughput applications in Docker and Kubernetes.
• Familiarity with database migration pathways, including moving traditional on-premises or relational datastores to managed services such as AWS Aurora.
• Experience implementing OpenTelemetry or distributed tracing across decoupled microservice platforms.
• Experience with network topology, proxy layers, or mail transfer agent protocols.

Culture & Benefits

• Remote-first work with occasional in-person team gatherings, functional off-sites, customer meetings, or project meetings.
• Healthcare insurance, retirement savings through a 401(k), paid sick time, paid personal time off, and paid parental leave.
• Additional wellness leave, parental leave, competitive pay, equity and bonus plan eligibility may be available.
• Twilio supports collaboration, mentoring, initiative, technical ownership, and community volunteering.

Hiring process

• Applications are intended to be accepted until 12/31/2026, subject to change based on business needs.
• The hiring process includes a formal interview process; Twilio does not make offers without formal interviews or conduct interviews exclusively through text-based messaging apps.