Staff Engineer Infra-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.

Standardized Job Title: Staff Engineer, SRE

Role Description

• 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

• Uses advanced tools (VPA, HPA.) for smart resource optimization ("rightsizing").

• Creates reusable K8s components (Helm charts, Operators) to speed up deployments.

• Automates resource adjustments to maximize performance and minimize costs.

• Drives efficient, scalable Kubernetes infrastructure through automation and best practices.

• Terraform, Terragrunt IAC and maintain the states of the Resources deployed on cloud . 

What you'll do

• 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.

• 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.

• Uses advanced tools (VPA, HPA.) for smart resource optimization ("rightsizing").

• Creates reusable Kubernetes components (Helm charts, stacks, operators) to speed up deployments and management of K8s.

• Automates resource adjustments to maximize performance and minimize costs.

• Drives efficient, scalable Kubernetes infrastructure through automation and best practices.

Required Educational Qualifications

• Bachelors or masters degree in Information Technology/Computer Science or equivalent combination of education and experience.

Who you will work with

• Engineering Teams

• External customers/MNOs and vendors

• Finance teams

What we are looking for

• 9+  years experience with a majority of at least 5 years in Kubernetes / Site reliability; experience in Kubernetes and end-to-end observability

• Efficiently allocate resources, reduce costs, and enhance performance.

• Streamline deployments and processes using gitlab, Terraform, Ansible, Helm, and Kubernetes.

• Strong CI/CD knowledge and automation skills(eg argocd etc).

• Strong Knowledge on CNCF tools (grafana, prometheus, opensearch ,Loki etc)

• Storing knowledge and understanding on Finops Practices and Cost optimization 

• Experience in GKE, OKE , EKS , ASG, Karpenter . 

• Stay ahead with cutting-edge Kubernetes tools and best practices.

• Work closely with development, security, and operations teams while mentoring junior engineers.

• Conduct performance tuning, capacity planning, and load testing for efficiency.

• Optimize cloud-native and hybrid architectures across OnPrem, AWS, OCI, and GCP.

• Exposure on FinOps and Exposure in Cost Optimisation activities using them,

• Exposure to IBM Cloudability , Wiv.ai or any Similar tooling 

• Harness or Kubecost expertise and experience would also help.

• Good Python Programmer who could automate FinOps activities.

• Gitlab Pipeline exposure would be an added advantage.

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.

By submitting an application for this position, you, as the applicant, or your authorised representative(s), consent to Circles’ Candidate Data Protection and Privacy Policy. You also agree to the collection, use, and/or disclosure of your personal data by us solely for recruitment purposes as specified in the Policy. You acknowledge that you have read and understood the Policy, are aware of your rights regarding your personal data, and accept the terms relating to international data transfers, where applicable. You further understand that you may withdraw consent at any time, which may affect our ability to consider your application. In instances where your personal data or application is submitted by a third party, it is understood that such third party has been duly authorised by you to disclose the relevant personal data and provide consent on your behalf, and that you have been made aware of this Policy.

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.