Software Engineer

Melbourne, Victoria💼 Full-time🗓 2026-09-17 → 2026-09-29

Core

Maintain and improve legacy messaging systems, ensuring scalability and performance for a global customer communications platform.

Role type

Software Engineer (Backend/Full Stack)

Builds

Messaging APIs, containerized Java applications, and cloud infrastructure components.

Domain

Telecom/Cloud Infrastructure

Required skills

Java, Spring, ReactJS, RESTful API design, AWS, CI/CD pipelines, automated testing, distributed systems, incident management, code review, version control

Preferred skills

Cloud certification (AWS/GCP/Azure), AI coding tools proficiency

Technologies

Java, Spring, ReactJS, AWS, Docker/Kubernetes (implied by containerised), GitHub Copilot/Claude

Responsibilities

Write clean, well-tested code for features and fixes; participate in Agile ceremonies; build hands-on competence with AWS cloud infrastructure; take part in incident response and production monitoring; maintain documentation for features and components.

Seniority

Mid-level, hands-on IC

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About Sinch

Sinch is a global leader in the growing market for Communication Platforms as a Service (CPaaS) and mobile customer engagement. We are specialists in allowing businesses to reach everyone on the planet, in seconds or less, through mobile messaging, email, voice, and video. With presence in more than 60 countries, whether you know us or not, you’ve definitely used our tech. We reach every phone on earth, with over 147 billion conversations every year. Sinch's core values are Make it Happen, Dream Big, Keep it Simple and Win Together. These values describe how our global organisation works and i