Software Engineer II, Application SRE

Founded in 2014, Circles is a global technology company reimagining the telco industry with its innovative SaaS platform, empowering telco operators worldwide to effortlessly launch innovative digital brands or refresh existing ones, accelerating their transformation into techcos.

Today, Circles partners with leading telco operators across multiple countries and continents, including KDDI Corporation, Etisalat Group (e&), AT&T, and Telkomsel, creating blueprints for future telco and digital experiences enjoyed by millions of consumers globally.

Besides its SaaS business, Circles operates three other distinct businesses:

• Circles.Life: A wholly-owned digital lifestyle telco brand based in Singapore, Circles.Life is powered by Circles’ SaaS platform and pioneering go-to-market strategies. It is the digital market leader in Singapore and has won numerous awards for marketing, customer service, and innovative product offerings beyond connectivity.
• Circles Aspire: A global provider of Communications Platform-as-a-Service (CPaaS) solutions. Its cloud-based Experience Cloud platform enables enterprises, service providers and developers to deliver and scale mobile, messaging, IoT, and connectivity services worldwide.
• Jetpac: Specializing in travel tech solutions, Jetpac provides seamless eSIM roaming for over 200 destinations and innovative travel lifestyle products, redefining connectivity for digital travelers. Jetpac was awarded Travel eSIM of the Year.

Circles is backed by renowned global investors, including Peak XV Partners (formerly Sequoia), Warburg Pincus, Founders Fund, and EDBI (the investment arm of the Singapore Economic Development Board), with a track record of backing industry challengers.

Job Title: Software Engineer II , Application SRE

About This Role

• This role would report to leader in Platform Engineering & Site Reliability Engineering
• Builds resilient cloud systems, automates operations, and ensures high reliability through robust monitoring and performance optimization
• Leading incident response and fostering a collaborative SRE culture. They drive team evolution and proactively prevent issues to maintain optimal service levels.

What you’ll do

• Assist in building and maintaining highly available and fault-tolerant applications
• Support the setup and maintenance of monitoring, logging, and alerting systems to enable proactive issue detection and faster resolution.
• Contribute to automation efforts for infrastructure provisioning, configuration, and deployment to improve operational efficiency and reliability.
• Help identify and troubleshoot performance issues, monitor system health, and support defining and tracking SLIs/SLOs under senior guidance.
• Participate in incident response activities, assist in documenting post-incident reviews, and help implement preventive measures to improve reliability.
• Collaborate with cross-functional teams to promote SRE practices and continuous improvement in operations.

Who you will work with

• Co-Founders and HODs
• Engineering Teams
• External customers/MNOs and vendors

What we are looking for

• 2–5 years of experience in Site Reliability Engineering within the telecom or cloud infrastructure domain, focusing on ensuring high availability and reliability of critical business applications.
• Support the implementation of SRE best practices, including incident management, monitoring, and automation, to improve system performance and resilience.
• Assist in designing and maintaining observability solutions using tools such as Prometheus, Grafana, New Relic, and Dynatrace for proactive monitoring and alerting.
• Participate in incident response and root cause analysis (RCA) activities, contributing to post-mortem reviews and documentation for continuous improvement.
• Contribute to performance optimization, including capacity analysis, load testing, and tuning of system components under guidance from senior engineers.
• Support automation initiatives for infrastructure and deployments using Terraform, Ansible, Helm, and Kubernetes, ensuring consistency and efficiency in delivery.
• Work with AWS, GCP, or OCI environments, assisting in building and maintaining cloud-native and hybrid architectures.
• Partner with cross-functional teams in development, operations, and security to promote a culture of reliability, scalability, and observability.
• Hands-on experience with project management too…