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Twelve Labs is building AI infrastructure that enables machines to understand video at scale. Video comprises 90% of global data, yet most remains inaccessible to machine understanding. The company has developed AI models that analyze audiovisual information more sophisticatedly than humans, applying this technology across media & entertainment, sports, security, and public sectors. Twelve Labs has raised over $300M from global investors including NEA, Radical Ventures, Amazon, NVIDIA, Snowflake, and others, with advisors including Fei-Fei Li and Silvio Savarese. The company operates globally from San Francisco, Seoul, New York, and London, with core R&D in Seoul.
As a Senior Infrastructure Engineer, you will design and build core infrastructure to operate the AI SaaS platform reliably and at scale. You will architect systems across diverse cloud environments (AWS, GCP, Azure) and on-premises deployments, supporting video AI foundation models. Working in a fast-moving startup environment, you will optimize for performance, security, and flexibility while collaborating closely with multiple internal teams.
Key responsibilities include:
- Designing and operating multi-tenant architecture for global enterprise customers
- Developing scalable CI/CD pipelines and infrastructure automation using Terraform
- Building flexible infrastructure spanning AWS, GCP, Azure, and on-premises environments
- Implementing advanced monitoring and security systems for efficient cloud optimization
- Designing scalable architectures to rapidly support new video AI models and services
- Collaborating with product managers, engineers, and researchers to bring AI products to market
The role offers hybrid work with autonomy and collaboration, latest MacBooks and ₩700k home office equipment stipends (refreshed every 3 years), unlimited LLM tokens for efficient AI use, ₩1.4M annual professional development budget, English education and global buddy programs, ₩7.2M annual corporate card for meals/transport, office snacks and evening meals after 7pm, annual health checkups for employee and one family member, group insurance options, and a 2-week paid holiday break at year-end.
REQUIREMENTS:
- Cloud infrastructure experience (AWS, GCP, Azure) in building and operating systems
- Experience with Infrastructure as Code tools (Terraform, Ansible) for automation and architecture design
- Kubernetes and container-based workload operations experience
- Scripting and automation experience with Python, Go, or TypeScript
- CI/CD pipeline design and operations experience
PREFERRED QUALIFICATIONS:
- 7+ years as an infrastructure engineer
- Multi-tenant architecture design and operations experience in enterprise SaaS environments
- Security and compliance-aligned infrastructure architecture design with audit experience
- Advanced monitoring and logging system implementation
- Infrastructure operations balancing performance optimization and cost efficiency
- English communication ability
