---
title: 'Machine Learning Engineer at OPSWAT'
canonical: 'https://feeny.ai/job/machine-learning-engineer-opswat-ho-chi-minh-city-prw4bgr5wghg'
type: 'job'
last_seen: '2026-09-06'
---

# Machine Learning Engineer at OPSWAT

- **Company:** OPSWAT
- **Location:** Ho Chi Minh City, Vietnam
- **Posted:** 2026-08-24
- **Last confirmed live:** 2026-09-06
- **Apply:** https://www.opswat.com/jobs/4726018005?gh_jid=4726018005

## Job description

OPSWAT, a global leader in IT, OT, and ICS critical infrastructure cybersecurity, delivers an end-to-end platform that gives public and private sector organizations and enterprises the critical advantage needed to protect their complex networks, secure their devices, and ensure compliance. Over the last 20 years our commitment to innovative technology has earned the trust of more than 1,700 organizations, governments, and institutions globally, solidifying our role in protecting the world’s critical infrastructure and securing our way of life.

The Position

MetaDefender Core is OPSWAT's file security platform, trusted where the stakes are highest: nuclear plants, defense networks, and the banks that move the world's money. The most sensitive of those customers cannot send a single byte to anyone's cloud, so the AI must run entirely on their hardware, inside the product.

This role is for the engineer who would rather own a model than call someone else: you build the training data, the fine-tuning, the evaluation, and you make the call on what ships. Every AI assistant you have ever used lives in a data center; yours will run on the customer's own hardware, inside some of the most protected networks in the world.

## What You Will be Doing

- Own the model track end to end: training data, fine-tuning runs, evaluation, and release, with scope and ownership growing by level.
- Build and maintain the evaluation gate for every model to change and make it something the team trusts more than its own intuition.
- Build the data pipelines that produce training datasets, enforcing grounding so the model can only state what it has actually read.
- Shape how the agent behaves: its instructions, its tool contracts, and how it recovers when the model gets something wrong.
- Own the model's security posture: harden it against prompt injection and misuse, make sure it never exposes internal information, and never lets itself be steered into guiding users toward unsafe actions.
- Serve models on constrained customer hardware: quantization, inference runtimes, and the memory / latency / quality trade-off.
- Ship into a production Rust service, collaborating closely with the engineering team, Product Management, and QA.

## What We Need from You

- Bachelor's degree in a technical field or equivalent practical experience.
- Experience fine-tuning open-weight LLMs using LoRA, QLoRA, or similar techniques.
- Strong Python, including building data pipelines for training datasets.
- Experience keeping model output grounded: retrieval-backed generation, hallucination control, and output traceable to a source the model reads.
- Experience with LLM serving and inference (e.g. vLLM, Ollama), including quantization and the memory / latency / quality trade-off on constrained hardware.
- Familiarity with tool-calling / agent-based LLM applications.
- Ability to design and run model evaluations for non-deterministic systems: you can name a metric you designed and the number you moved.
- Working knowledge of SQL.
- Strong verbal and written communication skills in English: the language of the team, the docs, and the prompts.
- Self-motivated, adaptable, and comfortable owning a track in a fast-paced, team-oriented environment.

It Would be Nice if You Had

- Rust literacy (able to read and modify existing service code).
- Experience with agent frameworks (e.g. ADK-style).
- Awareness of LLM security risks: prompt injection, data leakage, misuse.
- Compact models deployed on-premises, offline, or resource-constrained environments.
- Evaluation tooling for LLM systems: LLM-as-judge, regression suites, human review loops.
- Cybersecurity concepts, or experience building components of a security product.

OPSWAT is an equal opportunity employer. We celebrate diversity and are committed to providing an environment where equal employment opportunities are extended to all employees and applicants, free of discrimination and harassment of any type. All employment decisions are based on individual qualifications, job requirements, and business needs without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other category protected by federal, state, or local laws.

Recruiting Agencies: we do not accept unsolicited resumes from third party agencies for any of our open positions. To submit resumes for our jobs, there must be a recruiting contract approved by our legal team and endorsed by both parties. We are currently not accepting additional 3rd party agencies at this time.

## About OPSWAT

## Company Overview
- **One-liner**: OPSWAT protects the world’s critical infrastructure by securing every file, device, and data transfer across IT, OT, and air-gapped networks using its AI-powered MetaDefender Platform.
- **Entity Type**: Private (venture-backed; $125M total funding raised; bootstrapped for many years)
- **Headquarters**: Tampa, Florida, United States
- **Founded**: 2002
- **Founders**: Benny Czarny

## Core Business
- **Primary industry**: Cybersecurity (critical infrastructure protection)
- **Target customers**: B2B, Enterprise, Government – including nuclear facilities, defense networks, energy grids, financial institutions, and other mission-critical organizations.
- **Mission / purpose**: “Trust no file. Trust no device.” – prevent known, unknown, and AI-generated threats from reaching the systems the world depends on.

## Products & Services
- **MetaDefender Platform** (SaaS / On-premises / Hybrid): Unified cybersecurity platform providing file security, email security, removable media protection, network security, cross-domain transfer, endpoint compliance, and cloud security. Key technologies: Deep CDR™ (Content Disarm and Reconstruction), Metascan™ Multiscanning (30+ anti-malware engines), AI-driven threat prediction, Adaptive Sandbox, Proactive DLP, and File-Based Vulnerability Assessment.
- **Peripheral & Removable Media Protection**: Kiosk-based scanning and compliance enforcement for USB drives and transient assets.
- **Managed File Transfer**: Secure cross-boundary file movement with built-in threat prevention, policy enforcement, and audit trails.
- **Data Diode & Security Gateway Solutions**: Hardware-enforced unidirectional data transfer for air-gapped and segmented networks.
- **Email Security**: Neutralizes weaponized attachments and embedded threats using Deep CDR and Multiscanning.
- **Access & Endpoint Security (OESIS Framework)**: Assesses device posture before granting network access, covering managed and unmanaged devices.
- **OPSWAT Academy**: Professional certification in Critical Infrastructure Protection (CIP) – 28 courses, 456,000+ registered students, 268,000+ certified.

## Market Standing
- **Valuation / Market Cap**: Not publicly disclosed
- **Key Metric**: Annual Revenue $110M (LinkedIn, 2025 estimate); Total Funding $125M
- **Notable Investors / Partners**: Not explicitly listed in search results, but the company is trusted by 98% of U.S. nuclear power facilities and 1,500+ organizations in 80+ countries
- **Growth Signals**: 854 employees (+16.9% YoY, +167 people); operates in 28 countries (including Vietnam, Romania, Hungary, UK, Israel); pre-validated against NIST 800-53, CMMC 2.0, NERC CIP, Zero Trust, ISO 27001, SOC 2, NEI 08-09 Rev 6

## Competitive Advantages
- **Prevention-first philosophy** – stops threats before execution, unlike detection-based tools.
- **Deep CDR™ Technology** – reconstructs files to remove malware while preserving usability.
- **Multiscanning with 30+ anti-malware engines** – near 100% detection rate.
- **AI embedded natively** – predicts and neutralizes AI-generated threats.
- **Air-gap and cross-domain expertise** – data diodes and security gateways for the most sensitive networks.
- **Regulatory compliance** – validated for the world’s most rigorous standards in nuclear, defense, and critical infrastructure.

## Strategic Focus
- **Deepening AI capabilities** in threat prediction and content verification.
- **Expanding the MetaDefender Platform** to cover more attack surfaces (Cloud, OT, IT).
- **Growing the OPSWAT Academy** to train a global workforce in CIP.
- **Scaling global reach** – already in 28 countries, targeting more government and enterprise segments.

## Why Work Here
- **Culture**: Mission-oriented, innovative, transparent, and collaborative. “You are trusted to do your job” – teams have ownership and autonomy. Open communication across all levels.
- **Remote / Hybrid / Office**: Flexible-work arrangements; global offices in Tampa, Vietnam, Romania, Hungary, UK, Israel, and others.
- **Compensation & Benefits**: Competitive salaries, excellent insurance, stock options, generous PTO, multifaceted reward programs, quarterly/annual reviews.
- **Workplace Wellness**: Green office spaces, workout/exercise facilities, friendly environment, work-life balance emphasis.
- **Training & Development**: OPSWAT Academy provides privileged CIP certification; mentorship and career growth programs.
- **Recognition**: Named one of the best companies to work for in Asia by HR Asia Magazine.

## Sources
1. [OPSWAT Website](https://www.opswat.com/)
2. [OPSWAT Company Page](https://www.opswat.com/company)
3. [OPSWAT About Page](https://www.opswat.com/company/about)
4. [OPSWAT Careers Page](https://www.opswat.com/careers)
5. [OPSWAT LinkedIn](https://www.linkedin.com/company/opswat)

## Other roles at OPSWAT

- [Senior Office Administrator](https://feeny.ai/job/senior-office-administrator-opswat-ho-chi-minh-city-r9n205kt368d) — Ho Chi Minh City, Vietnam
- [Technical Support Engineer](https://feeny.ai/job/technical-support-engineer-opswat-london-england-a9tv44kb48h9) — London England, United Kingdom
- [Talent Acquisition Business Partner](https://feeny.ai/job/talent-acquisition-business-partner-opswat-tampa-florida-tcj2wpqesdvn) — Tampa Florida, United States
- [Joint Professional Services - Technical Support Engineer in Australia](https://feeny.ai/job/joint-professional-services-technical-support-engineer-in-australia-opswat-zfe2tqge17mk) — Australia
- [Technical Product Manager](https://feeny.ai/job/technical-product-manager-opswat-ho-chi-minh-city-dax0gkjt72p2) — Ho Chi Minh City, Vietnam
- [Machine Learning Engineer](https://feeny.ai/job/machine-learning-engineer-opswat-budapest-dmhw8pbg0as7) — Budapest, Hungary
- [Director of Software Engineering - My OPSWAT Portal](https://feeny.ai/job/director-of-software-engineering-my-opswat-portal-opswat-ho-chi-minh-city-y0n9extw29fd) — Ho Chi Minh City, Vietnam
- [AI Security Automation Engineer](https://feeny.ai/job/ai-security-automation-engineer-opswat-ho-chi-minh-city-q9tgc77wzy7k) — Ho Chi Minh City, Vietnam
- [AI Security Engineer](https://feeny.ai/job/ai-security-engineer-opswat-ho-chi-minh-city-bft1b6mk0jhz) — Ho Chi Minh City, Vietnam
- [AI-Native Software Engineer - MD Core](https://feeny.ai/job/ai-native-software-engineer-md-core-opswat-ho-chi-minh-city-0e48gv5g12pr) — Ho Chi Minh City, Vietnam