Engineering

Senior Site Reliability Engineer (SRE)

Engineering|Full-time

Role Overview

As our Senior SRE, you will ensure system reliability and scalability by building automated, cost-optimized environments through IaC, balancing high performance with financial efficiency. You will optimize CI/CD pipelines for fast, consistent releases while owning Monitoring and Observability and defining critical SLAs/SLOs. To ensure system stability, you will lead Root Cause Analysis (RCA) to identify and mitigate underlying failures. You will join our collaborative environment as a key teammate, working alongside Machine Learning, Engineering, and Pre-sales teams to ensure the smooth delivery of our wonderful work as one unified team.

In this role, you will get to:

  • Automate infrastructure, configuration, and deployments using IaC to ensure easy maintenance, consistency, and scalability.

  • Ensure system availability and performance through continuous monitoring and proactive maintenance.

  • Implement and manage SLAs to drive system efficiency and exceed customer expectations.

  • Optimize cloud resource utilization to balance high performance with cost-efficiency.

  • Design and optimize CI/CD pipelines to ensure fast, reliable, and automated software releases.

  • Develop runbooks and procedures for streamlined incident response and routine maintenance.

  • Collaborate with engineering teams to resolve production issues and implement reliability best practices.

  • Lead incident response and post-mortems to identify root causes and prevent recurrence.

  • Mentor engineers and advocate for DevOps culture to drive technical excellence across the organization.

You'll be successful if you have:

  • 3–5 years of hands-on experience in designing, building, and maintaining cloud infrastructure and applying SRE practices in large-scale systems.

  • Container Expertise: In-depth knowledge of container orchestration, specifically Docker and Kubernetes, to manage applications at scale.

  • Cloud Proficiency: Hands-on experience with cloud components (VMs, Serverless, Storage, Networking) to ensure optimal utilization and cost-effectiveness.

  • Advanced Automation & IaC: Strong skills in Terraform, ArgoCD, Helm, and GitLab CI.

  • Observability: Experience with monitoring stacks (specifically Prometheus/Grafana) and defining measurable SLAs.

  • Architectural Mindset: Ability to scope projects, define architectures, and select technologies based on project requirements.

  • Security-First Approach: A "secure by design" mindset with experience in troubleshooting complex production issues.

  • Leadership & Collaboration: Ability to work across teams and mentor junior/mid-level engineers through code reviews and workshops.

  • Communication: Excellent verbal and written skills for engaging with both technical and non-technical stakeholders.

It’s a plus if you have:

  • Secret Management: Experience with SOPS (Secrets Operations) for managing encrypted secrets within GitOps workflows.

  • Pre-sales Experience: Experience gathering customer requirements and estimating project scope.

  • Security Expertise: Hands-on experience with penetration testing tools like Nessus, Nikto, or Nmap.

  • Certifications: Active cloud provider (AWS/GCP/Azure) or CNCF certifications (CKA/CKAD).

  • Service Mesh: Experience utilizing technologies like Istio or Linkerd.

  • Advanced Deployments: Implementation of canary or blue/green deployments for controlled and safe releases.

  • Multitasking: Ability to effectively manage and deliver on multiple high-priority projects simultaneously.

Benefits & Perks
15 Days Annual leave & 5 Days Personal Leave
Health Insurance
Annual Health Check-up
Referral Bonus 30K
Buying Books / Sertis Library
Free Snacks & Soft Drink
Team Building Activity
Birthday Gifts
Provident Fund
Bonus
asain software developer
Be a part of

Engineering

team
“ Lay the greatest foundation for the best AI solution ”

5 steps

for interview

Depends on the department

1

Short Screen Video Call with Talent Acquisition

You will be asked a few questions on your experience, skills, availability, career expectations and motivations.

Short Screen Video Call with Talent Acquisition

2

First Interview

You will go through role-related interview and meet the team to speak more in depth about the role.

First Interview

3

Take Home Test

The take home assignment will be given to you based on the requirements of each position so that we understand your skills deeper.

Take Home Test

4

Second Interview

In this interview, you will have a chance to present your assignment or have a talk with cross-functional team members, depending on each position. This round can be either online or offsite interviews.

Second Interview

5

Sertis Offer

Congrats! We want to make you an offer, usually the offer will take place over the phone and we will send the written form later. Take your time! And ask all the questions you need before making a decision. We completely understand and here to help.

Sertis Offer

This is your chance

to build your career

in a growing data driven

industry.|

Because we cultivate intelligence and learning and help people grow beyond their potential.
We seek passion and ambition to turn data into action!
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Address
Sertis Co., Ltd.
597/5 Sukhumvit Road, Khlong Tan Nuea,
Wattana, Bangkok, Thailand 10110
Tel
(66) 2-001-1893
Fax
(66) 2-001-1894
Work with us

We are a unified community with the same passion and goal