---
title: 'Technical Customer Support (L1) at Vast.ai'
canonical: 'https://feeny.ai/job/technical-customer-support-l1-vast-ai-vietnam-8gccsn3y9g5a'
type: 'job'
last_seen: '2026-09-17'
---

# Technical Customer Support (L1) at Vast.ai

- **Company:** Vast.ai
- **Location:** Vietnam
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-09-16
- **Last confirmed live:** 2026-09-17
- **Apply:** https://jobs.ashbyhq.com/vastai/5651f430-c1df-4242-84f3-e5d27e22c349

## Job description

## About Us

[Vast.ai](http://Vast.ai)’s cloud powers AI projects and businesses all over the world. We are democratizing and decentralizing AI computing—reshaping our future for the benefit of humanity.

We value curiosity, ownership, and continuous learning. You’ll have the opportunity to dive into state-of-the-art AI systems while collaborating with a globally distributed team. We encourage and support growth into specialized or leadership tracks as our startup continues to scale.

## About the Role

This is a high-volume, customer-facing L1 support role. You will be the first voice our customers and GPU hosts hear when something goes wrong — and how you handle that moment matters as much as whether you can technically diagnose it.

Success in this role is roughly equal parts people skills and technical knowledge. If you're a strong communicator who happens to know Linux and Docker, you'll thrive here. If you're deeply technical but find customer interaction draining or difficult, this likely isn't the right fit.

You will handle a steady stream of chat and email tickets — diagnosing GPU rental issues, helping clients run AI workloads, supporting hosts, and escalating what you can't resolve. Previous experience in a customer support or technical support role is strongly preferred.

[Vast.ai](http://Vast.ai) users or hosts strongly preferred.

This is a full-time, remote position anywhere in Vietnam. Ability to work evenings, weekends and holidays is highly preferred.

[Vast.ai](http://Vast.ai) users or hosts strongly preferred.

## Key Responsibilities

50% General Customer Support / 50% Technical Support

- Respond to a high volume of customer and host inquiries via chat and email with professionalism and clarity
- Troubleshoot L1 issues related to GPU rentals, Docker containers, Linux environments, and account related questions
- Set clear expectations, communicate status updates, and follow up until issues are resolved
- Identify, document, and escalate issues that require L2/engineering attention
- Maintain and improve support documentation and internal knowledge base articles

You Are

- Genuinely energized by helping people — you don't just tolerate customer interaction, you're good at it
- A clear, confident written communicator — especially under pressure or with frustrated customers
- Patient and methodical when working through ambiguous or technically complex problems
- Comfortable working independently in a fast-paced, remote environment including weekends & holidays
- Detail-oriented with strong follow-through — you close the loop, you don't drop tickets
- Curious about AI, GPU computing, or cloud infrastructure

Must-haves

- Previous experience in customer support or technical support (B2C or B2B)
- Strong English written communication — clear, professional, and empathetic in tone
- Linux SysOps fundamentals — comfort with the command line, file systems, permissions
- Working knowledge of Network and Docker Troubleshooting
- Demonstrated ability to handle frustrated or confused customers constructively

Nice-to-haves

- Familiarity with GPU drivers (NVIDIA CUDA) and GPU workloads
- Experience with AI/ML frameworks (TensorFlow, PyTorch)
- Prior experience in a cloud or infrastructure support role
- Knowledge of the [Vast.ai](http://Vast.ai) platform as a client or host
- Familiarity with VMs and virtualization

## Benefits

- Competitive salary
- 100% salary during probation period
- Yearly Performance Bonus
- Annual leave as per regulations
- Health Insurance
- Reimbursement for approved work expenses
- Fast growing, ambitious startup environment

## About Vast.ai

## Company Overview
- **One-liner**: Vast.ai operates a decentralized GPU marketplace that enables developers and AI agents to provision and manage compute power across a global network of hardware, offering a cost-effective alternative to hyperscaler clouds.
- **Entity Type**: Private (raised $30M in funding)
- **Headquarters**: Los Angeles, CA (1100 Glendon Ave, STE 1840) and San Francisco, CA (100 1st Street, STE 2250)
- **Founded**: 2016 (incorporated June 28, 2016)
- **Founders**: Jake Cannell (CEO) and Christian Horne

## Core Business
- **Primary industry**: Cloud infrastructure / GPU compute / AI infrastructure
- **Target customers**: AI researchers, ML engineers, AI agent developers, enterprises needing GPU compute for training and inference
- **Mission**: "To organize, optimize, and orient the world's computation."
- **Vision**: "To make life substrate-independent through Vast Artificial Intelligence."

## Products & Services
- **GPU Cloud**: On-demand instances across 20,000+ GPUs in 40+ data centers. Deploy via CLI, SDK, Python API. Per-second billing. Real-time pricing set by supply and demand. [vast.ai](https://vast.ai/)
- **Serverless Inference**: Deploy models as endpoints with automatic GPU optimization, auto-scaling to zero, pay-per-compute-time. [vast.ai](https://vast.ai/)
- **GPU Clusters**: Dedicated multi-node clusters with InfiniBand networking for large-scale training. [vast.ai](https://vast.ai/)
- **API & SDK**: REST API, Python SDK, CLI for programmatic compute provisioning. Agent-native interface for autonomous compute procurement. [vast.ai](https://vast.ai/)

## Market Standing
- **Valuation**: Not publicly available
- **Key Metric**: Total funding $30M (as of 2026, per jobsbyculture.com) [jobsbyculture.com](https://jobsbyculture.com/blog/working-at-vast-2026)
- **Notable Investors/Partners**: Not disclosed in available sources
- **Growth Signals**:
  - 310% year-over-year growth (2024–2025)
  - 20,000+ GPUs, 350+ hosts, 700K+ transactions/month
  - SOC 2 Type I certification achieved in 2024
  - Enterprise and Secure Cloud offerings launched; customers include professional data center partners
  - Headcount grew from fully distributed team to 40+ employees across two offices (LA & SF) [vast.ai/about](https://vast.ai/about)
  - Conflicting reports: jobsbyculture.com cites ~30 employees, while vast.ai/about states "40+ employees"

## Competitive Advantages
- **Decentralized marketplace model**: Taps into underutilized GPU hardware (gaming rigs, mining farms, research labs, small data centers) to offer compute at 3–5x cheaper than AWS, no contracts required.
- **Agent-ready infrastructure**: The same API used by developers is designed for AI agents to autonomously procure and optimize compute – a moat for the upcoming agentic economy.
- **Real-time, transparent pricing**: Prices set by supply and demand, programmatically queryable via API. No hidden costs or enterprise sales friction.
- **Heterogeneous hardware support**: 68+ GPU types across 40+ data centers, enabling users to compare and switch between hardware types easily.
- **SOC 2 certified**: Security and compliance for enterprise workloads.

## Strategic Focus
- **Agentic compute**: Building an "infrastructure layer where AI agents design, procure, and optimize their own compute" [vast.ai](https://vast.ai/)
- **Enterprise expansion**: Growing Secure Cloud (certified data centers) and dedicated cluster products for professional customers.
- **Scaling the network**: Increasing GPU count, host partnerships, and geographic diversity while maintaining real-time pricing and low latency.
- **Open infrastructure**: Keeping compute distributed and independent, countering hyperscaler concentration.

## Why Work Here
- **Culture**: "High level of rigor, precision, and professionalism" – employees are stakeholders who own the impact of their work. Fast-paced startup environment where initiative is rewarded. [vast.ai/about](https://vast.ai/about)
- **Work location**: On-site in Los Angeles (Westwood) or San Francisco (SOMA). Not remote – all current openings require on-site presence.
- **Perks**: Comprehensive health/dental/vision insurance, 401(k) with company match, meaningful early-stage equity, onsite meals and snacks, close collaboration with founders and tech leaders. [vast.ai/jobs](https://vast.ai/jobs)
- **Interview process**: Screened by technical team; stages include a 15-min screening, 45-min deep dive, 1-hour LLM-assisted coding assessment, and 2-hour on-site meet-and-greet. Aim to complete in about one week. [vast.ai/jobs](https://vast.ai/jobs)
- **Salary ranges**: For roles like Senior Infrastructure Engineer and GPU Systems Engineer, posted salary $120K–$180K (may vary by role). [vast.ai/jobs](https://vast.ai/jobs)
- **Engineering culture**: Reports directly to CEO/founder Jake Cannell, a prolific writer on AI and compute scaling theory. Emphasis on systems engineering, GPU optimization, and cutting-edge research.

## Sources
1. [vast.ai/about](https://vast.ai/about)
2. [vast.ai](https://vast.ai/)
3. [vast.ai/jobs](https://vast.ai/jobs)
4. [jobsbyculture.com](https://jobsbyculture.com/blog/working-at-vast-2026)
5. [vast.ai/jobs/apply/systems-gpu-research-engineer](https://vast.ai/jobs/apply/systems-gpu-research-engineer)

## Other roles at Vast.ai

- [Head of Sales](https://feeny.ai/job/head-of-sales-vast-ai-los-angeles-yrkth8v89kkh) — Los Angeles, CA
- [Developer Relations Engineer](https://feeny.ai/job/developer-relations-engineer-vast-ai-san-francisco-19dx882ce5x1) — San Francisco, CA
- [Controller](https://feeny.ai/job/controller-vast-ai-los-angeles-0d4jvgnj6v48) — Los Angeles, CA
- [AI, HPC & GPU Infrastructure Support Engineer](https://feeny.ai/job/ai-hpc-gpu-infrastructure-support-engineer-vast-ai-los-angeles-40e39w8ek9p1) — Los Angeles, CA
- [Systems Operations Support Engineer — Linux](https://feeny.ai/job/systems-operations-support-engineer-linux-vast-ai-los-angeles-v3hjj8k7jj4v) — Los Angeles, CA
- [Technical Product Manager, Infrastructure](https://feeny.ai/job/technical-product-manager-infrastructure-vast-ai-los-angeles-b0h8y0t8d4fy) — Los Angeles, CA
- [Technical Support Engineer II (Linux)](https://feeny.ai/job/technical-support-engineer-ii-linux-vast-ai-los-angeles-0h1q79ajj6kc) — Los Angeles, CA
- [Director of Engineering](https://feeny.ai/job/director-of-engineering-vast-ai-san-francisco-q3avgemppyhv) — San Francisco, CA
- [Senior Infrastructure Engineer](https://feeny.ai/job/senior-infrastructure-engineer-vast-ai-los-angeles-ejanf64s8d34) — Los Angeles, CA
- [Security Engineer](https://feeny.ai/job/security-engineer-vast-ai-los-angeles-5p7ef9m994ce) — Los Angeles, CA