Senior Software Engineer

Join the Compliance Experiences team at Twilio, owning critical domains: Phone Numbers and Compliance (KYC). As a Software Engineer (L3), you will drive feature design, execution, and operational health of platform services processing millions of requests. You will build scalable, high-performance solutions, own end-to-end feature delivery, author technical specs, and build robust APIs, microservices, and tooling. Embrace AI-driven development workflows using LLMs and agentic tools to accelerate code generation and expand automated test coverage.

• Contribute to technical design and roadmap for core platform components, authoring technical specifications and driving execution to transition legacy systems into modern, scalable cloud-native microservices.
• Leverage AI coding assistants (GitHub Copilot, Anthropic Claude, or internal LLMs) to automate boilerplate, generate comprehensive test suites, and rapidly prototype solutions.
• Drive technical excellence and end-to-end component ownership, balancing rapid feature delivery with system reliability, security, and technical debt reduction.
• Partner with Product Managers and cross-functional stakeholders to translate customer needs and regulatory requirements into precise technical specifications, developer-first APIs, and seamless application workflows.
• Mentor and uplift junior engineers (L1–L2), onboard new team members, and foster a collaborative environment through constructive code reviews, tech talks, and technical guidance.
• Proactively identify and resolve technical risks, performance bottlenecks, and security vulnerabilities. Fully own on-call responsibilities, driving incident resolution and durable root-cause remediation.
• Articulate technical designs, system trade-offs, and operational runbooks through high-quality design documents, RFCs, and thorough documentation.

• 5+ years of experience designing and developing highly available, high-scale, secure, mission-critical cloud-native enterprise distributed systems.
• Strong proficiency in Java or Go, with solid knowledge of AWS ecosystems (Lambda, EKS, DynamoDB, Kafka).
• Hands-on experience with cloud-native infrastructure (AWS preferred), microservices patterns, and building highly resilient systems.
• Practical experience using AI tools (e.g., Copilot, Claude, Cursor) to accelerate software delivery, comfortable discussing use of LLMs for debugging, code synthesis, and prototyping.
• Experience building and maintaining high-volume public-facing APIs with a focus on developer experience.
• Experience with high-throughput data processing and storage solutions (SQL/NoSQL, Redis, Kafka, or Spark).
• Familiarity with Kubernetes, Terraform, and modern CI/CD paradigms.
• Demonstrated ability to influence technical decisions within your team through strong communication and technical credibility.
• Desired: Experience building internal platforms, and building or integrating AI agents into internal developer platforms or automated ops workflows.

Compensation ranges for US locations: Colorado, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, Vermont or Washington D.C.: $141,520 - $176,900; New York, New Jersey, Washington State, or California (outside SF Bay area): $149,840 - $187,300; San Francisco Bay area: $166,400 - $208,000. Canada: CAD 132,640 - 165,800 base salary plus 12.5% bonus. Eligible for Twilio's equity plan and corporate bonus plan. Benefits include health care insurance, 401(k) retirement account, paid sick time, paid personal time off, paid parental leave.

Remote - Canada; Remote - US. Not eligible in San Francisco, CA, Oakland, CA, San Jose, CA, or surrounding areas. Eligible in Ontario, British Columbia & Alberta. Occasional travel may be required for team gatherings or customer meetings.

Apply via the official Greenhouse posting. Applications accepted until 30 November, but may change based on business needs.