Principal Software Engineer (Application SRE)

Principal Engineer, Application SRE

Location - Bangalore

About Us

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.

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

• Architect and implement highly available, fault-tolerant applications and infrastructure, leveraging cloud-native technologies.
• Establish robust monitoring, logging, and alerting systems for proactive issue detection and resolution.
• Automate infrastructure management, deployment, and provisioning to enhance efficiency and consistency.
• Identify and resolve performance bottlenecks, define and measure SLOs/SLIs to maintain high service reliability.
• Manage incident response, conduct post-incident reviews, and implement preventative measures.
• Mentor engineers and drive the evolution of teams towards a modern, collaborative SRE culture.

What we are looking for

• 14+ years experience with a majority of at least 6 years in Site reliability Engineering telco domain; experience in end-to-end observability
• Ensure the high availability and resilience of business-critical applications by implementing SRE best practices.
• Design and maintain comprehensive monitoring, logging, and alerting solutions using tools like Prometheus, Grafana, New Relic, Dynatrace
• Lead incident response, root cause analysis (RCA), and post-mortems to drive continuous improvement.
• Conduct performance tuning, capacity planning, and load testing to improve system efficiency.
• Develop and maintain automated deployment pipelines using Terraform, Ansible, Helm, and Kubernetes.
• Collaborate with development and operations teams to streamline continuous integration and delivery.
• Work across AWS, OCI, or GCP environments, ensuring cloud-native and hybrid architectures are optimized.
• Work closely with development, security, and operations teams to drive a culture of reliability and mentor junior engineers
• Hands-on experience and strong understanding of the technical aspects of product development - experience with project management tools such as JIRA is essential
• Outstanding analytical and problem-solving skills

Circles is committed to a diverse and inclusive workplace. We are an equal opportunity employer and do not discriminate on the basis of race, national origin, gender, disability or age. To all recruitment agencies: Circles will only acknowledge resumes shared by recruitment agencies if selected in our preferred supplier partnership program. Please do not forward resumes to our jobs alias, Circles, employees or any other company location. Circles will not be held accountable for any fees related to unsolicited resumes not uploaded via our ATS.