Principal Engineer

div class= content-intro p strong Who we are /strong /p

p At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to a class= c-link href= https://customers.twilio.com/ target= _blank data-stringify-link= https://customers.twilio.com/ data-sk= tooltip_parent hundreds of thousands of businesses /a and empower millions of developers worldwide to craft personalized customer experiences. /p

p Our dedication to a class= c-link href= https://www.twilio.com/en-us/blog/open-work target= _blank data-stringify-link= https://www.twilio.com/en-us/blog/open-work data-sk= tooltip_parent remote-first work /a , 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. br span style= color: rgb(255, 255, 255); . /span /p

p strong Hiring and how we work /strong /p

p We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! /p

p Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. br span style= color: rgb(255, 255, 255); . /span /p /div p strong See yourself at Twilio /strong /p

p Join the team as Twilio’s next Principal Engineer. /p

p strong About the job /strong /p

p The Compliance Experiences team sits at the heart of the Twilio platform, owning two critical domains: Phone Numbers and Compliance (KYC). /p

p In 2026, getting a phone number is no longer a simple API call; it requires sophisticated orchestration across global phone number inventory, real-time identity verification, regulatory compliance, and operational tooling at massive scale. /p

p Twilio’s KYC Platform, the gateway to accessing all of Twilio’s communication APIs, enables customers to securely provision and operate communication services globally while navigating complex, constantly evolving regulatory requirements. /p

p As a Principal Engineer (P5), you will own the technical strategy for a platform that processes millions of requests. You will be expected to pioneer AI-driven development workflows using LLMs and agentic agents to accelerate code generation, automate architectural reviews, and synthesize complex global telecommunications regulations into executable logic. Your mission is to collapse the distance between a great idea and a production ready feature. /p

p strong Responsibilities /strong /p

p In this role, you’ll: /p

ul

li strong DRAW THE OWL: /strong Lead the architecture and long-term technical roadmap, transitioning legacy systems into a modern, distributed microservices architecture that supports global scale. /li

li strong ACCELERATE WITH AI: /strong Lead by example in using AI coding assistants (GitHub Copilot, Anthropic Claude, or internal LLMs) to automate boilerplate, generate exhaustive test suites, and perform rapid prototyping. You will be measured on your ability to amplify your own output and the team's velocity through AI augmentation. /li

li strong BE AN OWNER: /strong Drive technical excellence across multiple teams, making critical architectural decisions that balance rapid feature innovation with world-class reliability and security. /li

li strong WEAR THE CUSTOMER’S SHOES: /strong Partner with Product Managers to translate complex global telecommunications regulations and customer needs into elegant, developer-first APIs and application workflows. /li

li strong EMPOWER OTHERS: /strong Mentor and uplift senior and staff engineers. Foster a culture of technical curiosity, ownership, and continuous learning. Teach the team how to move from writing code to reviewing and orchestrating AI-generated logic without sacrificing security or quality. /li

li strong RUTHLESSLY PRIORITIZE: /strong Identify and mitigate technical risks early, ranging from scalability bottlenecks to security vulnerabilities and lead the team through complex production incidents with a focus on long-term remediation. /li

li strong WRITE IT DOWN: /strong Communicate complex technical strategies to both executive leadership and engineering teams through high-quality design documents, RFCs, and presentations. /li

/ul

p strong Qualifications /strong /p

p 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! /p

p strong *Required: /strong /p

ul

li strong 16+ years of experience /strong designing and developing highly available, high scale, secure, mission-critical cloud native enterprise distributed systems. /li

li strong Expert Proficiency /strong in strong Java or Go /strong , with deep knowledge of AWS ecosystems (Lambda, EKS, DynamoDB, Kafka). /li

li strong Architectural Mastery: /strong Deep experience with cloud-native infrastructure ( strong AWS /strong preferred), microservices patterns, and designing five-nines (99.999%) resilient systems. /li

li strong AI-Native Workflow: /strong Demonstrated experience using AI tools to significantly accelerate software delivery. You should be comfortable discussing how you use LLMs for architectural brainstorming, debugging, and code synthesis. /li

li strong API Excellence: /strong A track record of building and maintaining high-volume public-facing APIs that focus on exceptional developer experience. /li

li strong Data Savvy: /strong Experience with high-throughput data processing and storage solutions (SQL/NoSQL, Redis, Kafka, or Spark). /li

li strong Infrastructure as Code: /strong Proficiency with Kubernetes, Terraform, and modern CI/CD paradigms. /li

li strong Leadership: /strong Proven ability to influence technical strategy across multiple teams and organizational boundaries without direct authority. /li

/ul

p strong Desired: /strong /p

ul

li strong Telecom Domain Expertise: /strong Experience with telephony protocols, local number porting (LNP), or global regulatory compliance frameworks. /li

li strong Platform Thinking: /strong Experience building internal platforms that enable other developer teams to move faster. /li

li strong Agentic Systems: /strong Experience building or integrating AI agents into internal developer platforms or automated ops workflows. /li

/ul

p /p

p strong Location /strong /p

p This role will be remote across USA. /p

p strong Travel /strong /p

p We prioritize connection and opportunities to build relationships with our customers and each other. For this role, you may be required to travel occasionally to participate in project or team in-person meetings. /p

p strong What We Offer /strong /p

p 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. /p

p strong Compensation br /strong Please note this role is open to candidates outside of California, Colorado, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, New Jersey, New York, Vermont, Washington D.C., and Washington State. The information below is provided for candidates hired in those locations only. strong br /strong /p

p The estimated pay ranges for this role are as follows: /p

ul

li Based in Colorado, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, Vermont or Washington D.C. : $188,240.00 - $235,300.00. /li

li Based in New York, New Jersey, Washington State, or California (outside of the San Francisco Bay area): $199,280.00 - $249,100.00. /li

li Based in the San Francisco Bay area, California: $221,360.00 - $276,700.00. /li

li 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. /li

/ul

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

p /p

p Applications for this role are intended to be accepted until strong 30th July, 2026, /strong but may change based on business needs. /p

p /p div class= content-conclusion p strong Twilio thinks big. Do you? /strong /p

p 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 a href= https://www.twilio.com/company/values Twilio Magic /a . Additionally, we empower employees to build a href= https://twilio.org/support-and-resources/impact-fund positive change in their communities /a by supporting their volunteering and donation efforts. /p

p So, if you're ready to unleash your full potential, do your best work, and be the best version of yourself, apply now! If this role isn't what you're looking for, a href= https://www.twilio.com/company/jobs#open-positions please consider other open positions. /a /p

p strong span style= color: rgb(255, 255, 255); . /span /strong /p

p strong Stay alert to recruitment fraud /strong /p

p We care about your safety. Scammers sometimes impersonate Twilio recruiters through fake job postings, emails, websites, or messages. Please ensure you are engaging with an official @ a href= http://twilio.com twilio.com /a email address. We will never ask for payment, gift cards, cryptocurrency, or banking information during the recruiting process. We do not make job offers without a formal interview process or conduct interviews exclusively through text-based messaging apps. br br span style= color: rgb(255, 255, 255); . /span strong /strong /p

p strong Twilio is proud to be an equal opportunity employer. /strong 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. /p /div