Staff Software Engineer

Twilio is a company focused on revolutionizing communications, offering innovative solutions to businesses and empowering developers worldwide. They are seeking a Staff Software Engineer to enhance their real-time event-aggregation services for the Observability Insights/Analytics platform, with a focus on high-performance Java microservices and DevSecOps practices.

Responsibilities:

• Design, build, and maintain high-performance Java microservices using Spring Boot, capable of ingesting >250K events/sec with p99 < 200 ms
• Implement stateful stream-processing pipelines (Kafka Streams / Apache Flink) with idempotent replays, exactly-once semantics, and schema-evolution tooling
• Optimize ClickHouse schemas, partitioning, and materialized views to support multi-region, sub-second queries for Early Warning System (EWS) detectors
• Embed OpenTelemetry instrumentation and ship comprehensive metrics/traces/logs to Datadog and Grafana with SLI/SLO dashboards
• Champion DevSecOps best practices including Terraform automation, CI/CD pipelines, Kubernetes orchestration, AWS infrastructure (EKS, MSK, S3), and compliance guardrails (HIPAA, SOX, GDPR)
• Leverage best-in-class development productivity practices including AI-powered tooling to accelerate delivery and code quality
• Mentor junior engineers and participate in rigorous code/design reviews to elevate team standards and foster knowledge sharing

Requirements:

• 8+ years of professional Java development experience with mastery of high-performance and low-latency design patterns
• Production experience with Kafka Streams, Flink, or comparable stream-processing frameworks for building real-time data pipelines
• Hands-on ClickHouse (or columnar database) performance tuning and SQL optimization expertise
• Proven success operating AWS-hosted microservices at scale with solid Linux, Docker, and Kubernetes knowledge
• Strong observability mindset including metrics, tracing, alerting, and post-incident analysis capabilities
• Excellent communication skills and a bias toward collaborative problem-solving in cross-functional team environments
• Experience migrating single-region services to multi-region active-active topologies for high availability
• Familiarity with data-privacy controls including PII tokenization and field-level encryption
• Previous work in telecom, real-time analytics, or compliance-sensitive domains
• Contributions to open-source Java or streaming projects demonstrating community engagement