DevOps Engineer (Middle Level)

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

• Compensation & Insurance
• Attractive, competitive salary based on your performance and experience.
• Full gross salary paid during probation.
• Full social insurance contributions based on 100% of your gross salary after probation.
• Premium healthcare insurance package and annual health checkups.
• Equipment and Work Environment
• Modern equipment provided: laptop (Macbook/Window), 4K monitor, and height-adjustable standing desk.
• Company-provided Claude AI account to support your daily work.
• Join a global SaaS product company with a strong international presence.
• United States onsite opportunity.
• Career and Growth
• Structured onboarding and continuous professional development, including product training, internal tech talks and English class.
• Culture & Perks
• Company trips.
• Daily snacks and drinks provided.
• Sports clubs: football, badminton, and typing contests.

Our VN Office address: 127 Hong Ha, Duc Nhuan Ward, Ho Chi Minh City, Vietnam.