Senior Engineering Manager, Voice and Video

Segment (Twilio); Knockatee; On-site; EUR 120,000 - 180,000; Full time

Job summary

Twilio is seeking an experienced Engineering Manager to lead our Voice Media team in shaping the core media infrastructure powering global voice services. You will guide architecture decisions, mentor senior engineers, and drive reliability, latency, and throughput at scale.

You will collaborate with product and platform teams to define roadmaps, balance technical debt with feature delivery, and push for operational excellence using modern AI tools to boost developer velocity.

Qualifications

• 5+ years of engineering management experience leading teams building distributed systems.
• Understanding of Voice/VoIP infrastructure and media handling challenges.
• Experience architecting and building backend services at scale with high reliability under strict SLOs.
• Deep understanding of systems design, microservice architecture, and cloud infrastructure.
• Experience managing complex technical tradeoffs between reliability, scalability, and feature development.

Responsibilities

• Lead a team of senior engineers developing Twilio's next-generation media processing stack.
• Drive technical architecture decisions for low-latency, high-throughput media systems.
• Collaborate with product, platform teams, and other engineering teams to define technical roadmaps.
• Establish engineering excellence through code quality standards, testing practices, and operational reliability.
• Mentor engineers and provide technical guidance on complex media processing challenges.
• Balance technical debt reduction with feature development while maintaining service reliability.
• Build and evolve systems handling real-time media processing at scale.
• Own service performance metrics, reliability targets, and continuous improvement initiatives.
• Partner with engineering leaders to align media platform capabilities with broader Voice strategy.
• Make key technology stack decisions that impact Twilio's media processing capabilities.

Skills

Distributed systems leadership

Backend services

VoIP / Voice infrastructure

Real-time media processing

System design

Cloud infrastructure (AWS)

High reliability / SLOs

Communication skills

AI tools to improve developer velocity

Performance optimization

Tools

AWS

gStreamer

Asterisk

Rust/Java/C/C++

Job description

Who we are At Twilio, we're shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote‑first work, and strong culture of connection and global inclusion means that no matter your location, you're part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we're acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions.

About the job

We are looking for an experienced, technically strong Engineering Manager to lead our Voice Media team. You'll drive the technical strategy for core media infrastructure that powers Twilio's Voice services at global scale. Your team will build robust systems processing billions of media streams while maintaining industry‑leading reliability, quality, and performance. This is a highly technical leadership role requiring deep systems expertise and a passion for real‑time communications technology.

Responsibilities

• Lead a team of senior engineers developing Twilio's next‑generation media processing stack
• Drive technical architecture decisions for low‑latency, high‑throughput media systems
• Collaborate with product, platform teams, and other engineering teams to define technical roadmaps
• Establish engineering excellence through code quality standards, testing practices, and operational reliability
• Mentor engineers and provide technical guidance on complex media processing challenges
• Balance technical debt reduction with feature development while maintaining service reliability
• Build and evolve systems handling real‑time media processing at scale
• Own service performance metrics, reliability targets, and continuous improvement initiatives
• Partner with engineering leaders to align media platform capabilities with broader Voice strategy
• Make key technology stack decisions that impact Twilio's media processing capabilities

Qualifications

Twilio values diverse experiences from all kinds of industries, and we encourage everyone who meets the required qualifications to apply. If your career is just starting or hasn't followed a traditional path, don't let that stop you from considering Twilio. We are always looking for people who will bring something new to the table!

Required:

• 5+ years of engineering management experience leading teams building distributed systems
• Understanding of Voice/VoIP infrastructure and media handling challenges
• Strong technical background with experience architecting and building backend services at scale, operating them with high reliability under strict SLOs
• Deep understanding of systems design, microservice architecture, and cloud infrastructure
• Experience managing complex technical tradeoffs between reliability, scalability, and feature development
• Track record of successfully delivering critical infrastructure projects with significant technical complexity
• Experience in improving developer velocity using AI tools
• Strong knowledge of performance optimization, reliability engineering, and operational excellence
• Excellent communication skills with ability to translate complex technical concepts across technical and non‑technical audiences
• Experience with at least one of: real‑time communications systems, media processing, streaming technologies, or related fields

Desired:

• Experience with SIP, RTP/RTCP or other communications protocols
• Familiarity with media codecs, transcoding, packet loss concealment, and audio processing
• Background in building low‑latency, globally distributed systems
• Experience with Rust, Java, C/C++, or other systems programming languages and platforms like Asterisk or gStreamer
• Experience in building Voice AI products
• Knowledge of cloud infrastructure on AWS or similar platforms
• Prior experience in telecommunications or communications platforms

Location

This role will be remote Ireland or UK.

Travel

You may be required to travel occasionally to participate in project or team in‑person meetings.

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.

Equal Employment Opportunity Statement

Twilio is proud to be an equal opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law. Qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Additionally, Twilio participates in the E‑Verify program in certain locations, as required by law.