Site Reliability Engineer II

Introduction

SREs at Optimizely are focused on making us the most reliable, performant, and trustworthy Digital Experience Optimization platform ever. Our engineering teams have built data pipelines that process 10 billion events daily and applications that support powerful experimentation and collaboration workflows at scale. Our platforms are built on AWS and GCP. We use technologies such as Kafka, Samza, HBase, MySQL, and Postgres. We build and manage our systems using TravisCI, Jenkins, Docker, Kubernetes, Terraform, and Chef. We use a combination of managed and self-hosted approaches. This is a unique opportunity to lead the engineering organization in areas of standardized automated infrastructure and service provisioning and orchestration, service-oriented architectural excellence, and forward-looking planning and execution of large technical projects.

Job Responsibilities

• Help build a Site Reliability Engineering culture across the organization by sharing your best practices, approaches, documentation, and code with other engineering teams
• Apply automation and software to any tasks or parts of the system that would benefit from it or are performed manually
• Ensure effective performance and 24x7 availability of all production systems
• Monitor alerts coming out of all Optimizely’s platforms, and coordinate with Operations/SRE/TSS/Engineering teams as necessary to take preventive or corrective action to resolve any incidents, with a goal to minimize MTTA/R
• Put in place and manage an effective on-call rotation within the team
• Work with engineering teams to set up proper monitoring and alerting thresholds across all Optimizely services and applications so the SRE team is focusing on key areas to stabilize the platforms
• Document your system knowledge as you acquire it over time, create runbooks, and ensure critical system information is readily available to those who need it
• Accountability for platform uptime SLAs.

Knowledge and Experience

• Proven experience with AWS/Azure cloud infrastructure and DevOps
• Experience using Kubernetes to build containerized applications
• Good understanding Identity Governance catalog
• Experience building secure multi-tier web applications
• Experience configuring continuous integration and continuous delivery (CI/CD) systems such as TeamCity
• Proficiency with databases such as SQL Server, Postgres, and MongoDB
• Proficiency with ELK
• Strong desire to learn and collaborate with the team
• Must have a strong passion for continuous improvement
• Ability to work with remote coworkers in other time zones
• Familiarity with Agile development methodologies such as Scrum
• Fluent in English both written and oral.

Bonus points

• Experience building scalable multi-region applications
• Proficiency in scripting/Programming like PowerShell, Bash, or Python
• Experience configuring software monitoring tools such as DataDog, Kibana, ELK, etc.
• Proficiency in using configuration management tools such as Terraform.

Education

• Bachelor’s Degree (Computer Science or engineering preferred) or equivalent work experience

Competencies

• Displaying Technical Expertise
• Critical Thinking
• Testing and Troubleshooting
• Demonstrating Initiative
• Utilizing Feedback

About Optimizely

At Optimizely, we're on a mission to help people unlock their digital potential. We do that by reinventing how marketing and product teams work to create and optimize digital experiences across all channels. With Optimizely One, our industry-first operating system for marketers, we offer teams flexibility and choice to build their stack their way with our fully SaaS, fully decoupled, and highly composable solution.

We are proud to help more than 10,000 businesses, including H&M, PayPal, Zoom, and Toyota, enrich their customer lifetime value, increase revenue and grow their brands. Our innovation and excellence have earned us numerous recognitions as a leader by industry analysts such as Gartner, Forrester, and IDC, reinforcing our role as a trailblazer in MarTech.

At our core, we believe work is about more than just numbers -- it's about the people. Our culture is dynamic and constantly evolving, shaped by every employee, their actions and their stories. With over 1500 Optimizers spread across 12 global locations, our diverse team embodies the "One Optimizely" spirit, emphasizing collaboration and continuous improvement, while fostering a culture where every voice is heard and valued.

Benefits

• We are Vietnam Best IT companies 2026 by ITviec.
• Hackdays for self-studying and researching any IT-related subjects.
• 5 working days/week with flexible working time and no overtime.
• Annual unforgettable company outing.
• International, professional, creative working environment and talented teams.
• Onsite opportunities in Europe and US.
• Common cultural-sportive- art Clubs and activities, sponsored and/or supported by the Company (Ex: Football, GYM, Swimming, Guitar, English…).
• Powerful workstation: Core i7-9700, 16-32 GB RAM, 02 x QHD 2560x1440 monitors (2K resolution).
• 100% official salary during the probation period, 13th month salary, annual salary raise.
• Up to 03 extra paid-leave days per year.
• Social, Health and Unemployed Insurance are based on 100%.
• Gross salary and fully paid by Company.
• Extra bonus at $ 60 per special occasions (Birthday, Labor Day, National Day, Solar New year, Lunar New Year).
• Lunch allowance at $30 per month.
• Baby allowance for a child under 03 years old is $ 12 per month.
• AON Premium Healthcare Insurance package for employees and their children up to 18 years old.
• Daily various foods, drink, and seasonal fresh fruits.