# DevOps Engineer (Middle Level)

> OptiSigns Inc. · Ho Chi Minh City, Vietnam · — · Posted 2026-07-02

**Workplace:** on_site

## Description

About us

At OptiSigns, we believe technology should be accessible and valuable to everyone, including non-technical users. Our mission is to create beautiful, user-friendly B2B SaaS applications that add real value to society. By helping businesses connect better with their customers and employees, we aim to drive revenue growth and enhance operational efficiency.

Responsibilities

-   Maintain and improve CI/CD pipelines across services and apps.
-   Manage infrastructure as code; automate provisioning and configuration.
-   Implement monitoring/alerting and support incident response/postmortems.
-   Collaborate on access, secrets, compliance, and cost optimization.
-   Drive performance and scalability improvements.

## Requirements

-   4+ years in DevOps/SRE/Infrastructure Engineering.
-   Kubernetes (REQUIRED): Proficient at deploying, managing, and troubleshooting K8s in production. Strong understanding of Pod lifecycle, networking (CNI), Ingress, ConfigMap/Secret, RBAC, resource limits, and HPA/VPA.
-   Public Cloud: Hands-on experience with at least one of AWS, GCP, Azure, or DigitalOcean (provisioning, networking, IAM, monitoring).
-   Real production deployment and operations experience: Hands-on experience from infrastructure setup through post-launch operations, including handling real incidents and scaling the system.
-   Linux and Networking: Proficient with the command line, shell scripting (Bash), and core networking concepts (DNS, TCP/IP, HTTP/HTTPS, load balancing, TLS).
-   CI/CD: Experience building pipelines with GitHub Actions, GitLab CI, Jenkins, or equivalent.
-   Infrastructure as Code: Comfortable using Terraform, Helm, Ansible, or similar to manage infrastructure.
-   Observability: Solid grasp of metrics, logs, and traces. Familiar with Prometheus, Grafana, or equivalent tools.
-   English communication: Strong reading comprehension; able to communicate via text/chat with the US team (solid written English).

Nice to have

-   Coding skills (PLUS): Able to write code (Node.js, Go, Python, etc.) to build tooling, automation scripts, or contribute to application codebases.
-   Effective use of AI tools (PLUS): Experience using Claude Code, Cursor, GitHub Copilot, or other AI assistants to boost productivity — writing IaC, debugging, drafting runbooks, log analysis, and more.
-   Relevant certifications: CKA, CKAD, AWS / GCP / Azure Certified, HashiCorp Certified.
-   Prior experience working in a SaaS environment serving international customers.
-   Open-source contributions or a personal technical blog.

## Benefits

-   Opportunities for overseas travel and training at our U.S. office in Houston, TX.
-   13th-month salary bonus.
-   Comprehensive healthcare insurance. 
-   MacBook / Windows laptop, external monitor, and all necessary equipment.
-   Yearly team outings, company trips, and internal clubs.
-   Structured onboarding, continuous training, and clear career-growth paths. 
-   English-language training programs. 
-   Free drinks, snacks, and parking.

## Apply

[Apply at OptiSigns Inc.](https://apply.workable.com/optisigns-inc/j/C610E42B9C/apply)

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