Senior Infrastructure Engineer

Join the team as Twilio's next Senior Infrastructure Engineer.

This position is needed to build and scale Stytch's core product as we bring Stytch capabilities to Twilio's full customer base, delivering secure, developer-first identity experiences.

You'll design and build infrastructure that power authentication, authorization, and emerging agentic and non-human identity use cases.

You'll partner closely with product and engineering leadership to set direction, deliver high-impact features, and evolve our platform for Twilio scale.

This is a rare chance to operate like a startup within Twilio: you'll work in a high-ownership environment with startup speed, backed by Twilio's reach and scale.

Responsibilities:

• Build and own the infrastructure and platform capabilities that power Stytch's identity platform as it scales across Twilio,ensuring security, reliability, and performance for every customer.

• Design, implement, and operate scalable cloud infrastructure (AWS/EKS, ECS, networking, data stores), balancing uptime, cost, and developer velocity.

• Partner closely with Product and Engineering leadership to set infrastructure direction, translate platform needs into technical plans, and deliver high-impact roadmap work.

• Collaborate across Twilio and Stytch teams to align on architecture, integrate platform capabilities, and unblock cross-team initiatives.

• Operate with deep technical ownership: author design docs, drive key technical decisions, review code, and stay close to the systems you ship.

• Build in ambiguity,break down complex problems, make pragmatic tradeoffs, and adopt new technologies or strategies when they improve outcomes.

• Improve production quality and resilience through strong observability, incident response, automated remediation, and continuous reliability engineering.

• Make developers' lives easier by building self-service tooling, safer deployment patterns, and reliable platform primitives that accelerate product teams.

• Mentor and support other engineers through pairing, feedback, and knowledge-sharing, helping raise the team's technical bar and culture.

Qualifications:

• 6+ years of experience as an Infrastructure or Platform Engineer building and operating high-scale, mission-critical cloud production systems.

• Strong experience with containerization and orchestration (Kubernetes/EKS, Docker), Infrastructure as Code (Terraform, GitOps, or similar) and AWS.

• Hands-on proficiency in at least one modern programming language used in production.

• Experience designing and running observability and on-call systems (e.g., Datadog, ELK, Prometheus/Grafana).

• Experience scaling cloud infrastructure for distributed systems, including relational databases and high-availability service architectures.

• Excellent written and verbal communication skills; comfortable writing design docs and leading technical discussions.

• Bachelor's degree in Computer Science or equivalent practical experience.

• Schedule: ability to work non-standard, on-call rotation weekend and holiday hours.

Desired:

• Experience with multi-region or global infrastructure, including disaster recovery and data replication strategies.

• Familiarity with enterprise-scale platform challenges: multi-tenant infrastructure, compliance, and cost/performance optimization.

• Builder at heart. Through a hobby or your profession, you are passionate about being hands on and seeing your work come to life.

What We Offer:

Working at Twilio offers many benefits, including competitive pay, generous time off, ample parental and wellness leave, healthcare, a retirement savings program, and much more. Offerings vary by location.

Compensation:

*Please note the salary range information provided applies only to candidates residing in California, Colorado, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, New Jersey, New York, Vermont, Washington D.C., and Washington State due to local requirements.

• Based in Colorado, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, Vermont or Washington D.C.: $141,520 - $176,900.

• Based in New York, New Jersey, Washington State, or California (outside of the San Francisco Bay area): $149,840 - $187,300.

• Based in the San Francisco Bay area, California: $166,400 - $208,000.

This role may be eligible to participate in Twilio's equity plan and corporate bonus plan. All roles are generally eligible for the following benefits: health care insurance, 401(k) retirement account, paid sick time, paid personal time off, paid parental leave.

The successful candidate's starting salary will be determined based on permissible, non-discriminatory factors such as skills, experience, and geographic location.

Applications for this role are intended to be accepted until June 01, 2026, but may change based on business needs.

Twilio thinks big. Do you? We like to solve problems, take initiative, pitch in when needed, and are always up for trying new things. That's why we seek out colleagues who embody our values , something we call Twilio Magic. Additionally, we empower employees to build positive change in their communities by supporting their volunteering and donation efforts. So, if you're ready to unleash your full potential, do your best work, and be the best version of yourself, apply now!