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Applied AI Engineer

Remote from Spain·Added 23 days ago

Action1

7 open roles

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Overview

Job details

Fully remote
Per the ad.

Requirements

Have the right to work in Spain
Action1 doesn't mention sponsorship in the ad.
Work in English
English is required, per the ad.

Pay & benefits

What you'll get

Fully remote work, giving you the flexibility you need in the modern world
A collaborative environment encouraging you to own your domain and implement best practices
Stable income, benefits, flexible working hours, and opportunities for promotion.
Friendly and professional peers, eager to help and help you grow.
A multitude of interesting challenges and opportunities.

Requirements

What we're looking for

Strong software engineering fundamentals with hands-on ownership of production systems; Python required
Solid LLM application development experience, including context design, structured outputs, and orchestration
Hands-on experience with LLM evaluations, including experiment design, regression detection, gating, and observability
Experience building and operating backend services/APIs in production
Experience designing multi-service architectures and reliable integrations, including stable service contracts, retries, and failure recovery
Working knowledge of operating production databases, including schema design, indexing, migrations, and backup/restore
Hands-on experience with containerized workloads
Ability to balance output quality, latency, and cost in production AI systems

Nice to have

Experience with agentic systems or RAG, including evaluation
Experience building lightweight user interfaces
Experience shipping high-adoption internal developer or operations tooling
JavaScript/TypeScript
AWS deployment and operations experience
Experience with runtime isolation and sandboxing for sensitive execution
Experience in B2B SaaS, security, compliance, or data governance contexts

The role

We are looking for a Applied AI Engineer to build and operate LLM-powered internal solutions, tools, automations, and customer-facing AI features end-to-end.

We are not building AI for the sake of AI, or to follow hype or impress investors. We care about AI that works in real life and solves actual problems.

Technology choices and product decisions are not simply handed down from the top. You will have room to shape the solution, challenge assumptions, choose the right tools, and influence the result.

What you'll do

Build and operate LLM-powered internal solutions, tools, and automations end-to-end
Ship customer-facing AI features
Drive technical decisions from design through production rollout
Own systems in production, including monitoring, reliability improvements, and incident response participation
Build and maintain LLM evaluation workflows, including quality/safety checks, baselines, and regression detection
Partner with R&D, product, and security teams
Evaluate emerging AI technologies and patterns, and advocate adoption when justified

Technology we use

You do not need to have experience with every tool listed below, but this is the environment we work with now:

Python, uv, FastAPI, PydanticAI
PostgreSQL, Docker, Docker Compose
AWS: EC2, ECR, S3, Lambda
Interfaces and tooling: Streamlit or similar tools, pytest, ruff, pyright, OpenTelemetry

About Action1

Action1 is a cybersecurity company specializing in cloud-based patch management and remote monitoring and management (RMM) solutions. Its platform helps IT teams automate patch deployment, manage endpoints, and respond to vulnerabilities across distributed networks. The company is headquartered in Houston, USA, and serves a global customer base, positioning itself as a leader in the patch management niche.

Action1 has established a presence in Spain, with open roles for a Product Security Engineer and a QA Engineer for its desktop application, indicating a growing technical hub in the country. The company's work culture emphasizes innovation in IT security, and it offers opportunities for international professionals to contribute to a product used by organizations worldwide. With a focus on engineering and security, Action1 is an attractive option for those looking to work in a fast-paced, security-focused environment.

Founded: 2018
Employees: 100–500
Headquarters: Houston, USA
Website: action1.com

Good to know if you are moving

Action1 offers a fully remote-friendly work environment, which can be appealing for international hires looking to work from Spain.
The company is focused on cybersecurity, a high-demand field, providing strong career growth opportunities for security engineers.
Open roles in Spain include Product Security Engineer and QA Engineer, indicating a need for technical talent in the region.
As a global company with a Houston HQ, Action1 provides exposure to international clients and a diverse team.
The company's platform is used by IT teams worldwide, offering a chance to work on products with a broad user base.

In their own words

About the company & team

Action1 is an autonomous patch management platform trusted by many Fortune 500 companies. Cloud-native, infinitely scalable, highly secure, and configurable in 5 minutes - it just works and is always free for the first 200 endpoints, with no functional limits. By pioneering autonomous OS and third-party patching with peer-to-peer patch distribution and real-time vulnerability assessment and remediation without needing a VPN, it eliminates routine labor, preempts ransomware and security risks, and protects the digital employee experience.

In 2026, Action1 was recognized by Inc. 5000 as the fastest-growing founder-led cybersecurity company in America. At the helm of Action1 are industry veterans Alex Vovk and Mike Walters, American entrepreneurs who founded Netwrix, which has grown into a multi-billion-dollar industry-leading cybersecurity company.

All open roles at Action1