Staff Software Engineer

Twilio • United States, United States • 2h ago

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 (https://customers.twilio.com/) and empower millions of developers worldwide to craft personalized customer experiences.

Our dedication to remote-first work (https://www.twilio.com/en-us/blog/open-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!

See yourself at Twilio

Join the team as Twilio's next Staff Software Engineer

About the job

This position is needed to harden, optimize, and scale the real-time event-aggregation services that power our Observability Insights/Analytics platform.

We are seeking a Staff Software Engineer with deep Java expertise to own high-throughput stream-processing microservices (Kafka Streams / Flink) deployed on AWS EKS, tune ClickHouse for millisecond-latency writes, and embed observability that keeps incident minutes near zero. You will design resilient, high-performance systems capable of processing >250K events/sec with p99 latencies under 200ms, while championing DevSecOps practices and mentoring junior engineers.

Responsibilities

In this role, you'll:

Design, build, and maintain high-performance Java microservices using Spring Boot, capable of ingesting >250K events/sec with p99

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

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:

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

Desired:

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

Location

This role will be based in our Dublin, Ireland office.

Travel

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.

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.

Twilio thinks big. Do you?

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

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, please consider other open positions. (https://www.twilio.com/company/jobs#open-positions)

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.

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