Senior Software Engineer — Billing Platform (Remote)

Twilio

Ireland

Remote

EUR 110,000 - 150,000

Full time

14 days+

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Benefits offered by this job

Healthcare

Retirement savings program

Parental leave

Wellness leave

Job summary

Twilio is hiring a senior software engineer for our Commerce Platform Team in Ireland. You’ll design and operate core billing services at scale, building features that drive the billing lifecycle and product discovery experiences.

You’ll work with AWS, Kafka, REST/OpenAPI, and our own services to deliver reliable, observable systems. The role emphasizes leadership across domains (microservices, APIs, infrastructure), collaboration with product teams, and on‑call readiness.

Qualifications

5+ years of experience building highly scalable products.
5+ years of programming experience in an object‑oriented language such as Java, with clean code practices.
Expert knowledge in object‑oriented programming with a successful track record.
Experience contributing to architecture and design of new and current systems, covering reliability, scalability and design patterns.
Experience working closely with the Product team to understand requirements and help define technical work.
Experience working with stakeholders at all levels – able to dive into the nuts‑and‑bolts of how things work as needed.
Experience with relational and non‑relational databases.
Experience delivering high levels of observability and proficiency in improving early warning systems (e.g., working with Grafana, DataDog, Prometheus).
Collaborating with internal and external teams and fostering an inclusive environment, welcoming all points of view.
Own and lead multiple domains of the platform (microservices, REST APIs, infrastructure) from inception to deployment and maintenance while making best‑in‑class technical decisions that impact company success.
Familiarity with cloud solutions, AWS, Kubernetes/EKS, CI/CD pipelines, testing and automation.
Self‑driven – takes complete ownership of tasks and champions effort to get them to completion.
Clear written and spoken communication skills.
Degree in Computer Science or a related field, or equivalent work experience.
Experience with on‑call support for mission‑critical customer systems.
Experience optimizing and debugging complex SQL queries.
Experience working on customer‑facing applications.
Good debugging skills on production systems.
Proficient in Linux and containerization with Kubernetes.
Nice‑to‑have: gRPC, Python, Typescript, React, Apache Kafka.

Responsibilities

Improve your knowledge of highly available and scalable distributed systems and use this knowledge to build new features into our platform.
Design, implement, and operate both new features on our current services as well as new services that will be built from scratch.
Leverage your excellent communication and written skills to articulate the “why” of the solution you are proposing, and have a good understanding of your team’s priorities and the customer impact.
Troubleshoot and fix operational issues and have the opportunity to improve the troubleshooting procedures and tools.
Execute the full software development life cycle.
Develop flowcharts and documentation to identify solutions.
Write well‑designed, testable code.
Document and maintain software functionality.
Troubleshoot, debug and upgrade existing systems.