Staff Software Engineer – LLM, AI Agents

Twilio

. Build and own product capabilities for Stytch’s agentic identity platform on Twilio.

Posted 3/31/2026full-timeRemote • California, Colorado, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, New Jersey, New York, Vermont, Washington • 🇺🇸 United StatesLead💰 $167,800 - $246,700 per yearWebsite

Tech Stack

Tools & technologies

Distributed Systems

About the role

Key responsibilities & impact

Build and own product capabilities for Stytch’s agentic identity platform on Twilio.
Design, implement, and maintain scalable, reliable distributed services, optimizing for security, latency, and developer experience.
Partner with Product and Engineering leadership to set direction, translate customer needs into technical plans, and deliver high-impact roadmap features.
Collaborate across Twilio and Stytch teams to align on architecture, integrate platform capabilities, and unblock cross-team initiatives.
Write clean, maintainable, and well-tested code, setting a high bar for technical excellence across the team.
Own the end-to-end lifecycle of new services, from initial design and prototyping through to production deployment and operational readiness.
Mentor other engineers on the team, fostering a culture of innovation, ownership, and continuous learning.
Communicate complex technical concepts effectively to diverse audiences, from fellow engineers to executive leadership.
Stay at the forefront of industry trends and emerging threats in identity and authentication to ensure our products are secure and innovative.

Requirements

What you’ll need

7+ years of experience building and operating highly scalable, distributed systems, with a focus on security, reliability, and performance.
Experience working with agents and/or LLMs.
Strong hands-on coding skills and a willingness to dive deep to solve complex problems.
Demonstrated expertise in designing and implementing resilient, fault-tolerant systems.
Experience making high-impact technical decisions and leading technical initiatives.
A proven track record of driving technical excellence while keeping customer needs at the center of your work.
Deep understanding of software engineering best practices, including monitoring, observability, and building for the long term.
Exceptional communication and collaboration skills, with the ability to influence and align stakeholders.
Experience mentoring engineers and elevating the technical capabilities of a team.
Degree in Computer Science or a related field, or equivalent work experience.

Benefits

Comp & perks

Health care insurance
401(k) retirement account
Paid sick time
Paid personal time off
Paid parental leave

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

distributed systemsscalable systemssecurityreliabilityperformancecodingfault-tolerant systemssoftware engineering best practicesmonitoringobservability

Soft Skills

communicationcollaborationmentoringinfluencingaligning stakeholdersinnovationownershipcontinuous learningproblem-solvingtechnical excellence