Senior SOC Analyst (Detection Engineering & AI Security)

Plain Concepts Group; España; Remote; EUR 65,000 - 100,000; Full time

Benefits offered by this job

Fully remote work

Health insurance

Training budget & certs

English lessons

Home internet allowance

Gym discounts

Team events & perks

Job summary

Plain Concepts Group is seeking an Agentic Detection & Response Specialist to advance security operations beyond incident response. You will fuse threat investigations with automation, detection engineering, and AI-driven responses across diverse environments.

You’ll lead complex investigations, design detections, and build SOAR playbooks while collaborating with security architects to push agentic capabilities and reduce alert fatigue.

Qualifications

• 6+ years in Security Operations with L3 investigations or advanced escalations.
• Strong background in Incident Response, Threat Hunting, Detection Engineering, and Security Operations.
• Experience across endpoint, identity, network, and cloud environments.
• Hands-on with SIEM and EDR/XDR technologies; familiarity with Microsoft Sentinel/Defender XDR.
• Scripting and automation with Python, PowerShell, APIs; interest in AI and agentic security.
• Fluent Spanish and English; able to own initiatives end-to-end.

Responsibilities

• Lead complex incident investigations and advanced security escalations.
• Analyze activity across endpoint, identity, network, cloud, and SIEM platforms to determine scope and response actions.
• Design, build, and improve detection rules, correlation logic, and investigation queries.
• Develop security automations, integrations, and SOAR playbooks to streamline workflows.
• Collaborate with security architects and engineers to implement AI-assisted and agentic capabilities.
• Identify opportunities to apply AI for enrichment, evidence summarization, and response recommendations.
• Act as a technical reference for L1/L2 analysts, improving escalations and procedures.
• Drive continuous improvement to reduce alert fatigue and increase detection quality and response efficiency.

Skills

SOC operations

L3 investigations

Threat hunting

Incident response

Detection engineering

Security operations

Python scripting

PowerShell scripting

APIs integration

SOAR automation

AI in security

Languages: Spanish & English

Tools

SIEM

EDR/XDR

Microsoft Sentinel

Defender XDR

SOAR platforms

Cloud security tools

Job description

Are you an experienced SOC Analyst ready to go beyond incident response and help shape the future of Security Operations?

At Plain Security Studios, we're transforming traditional SOC capabilities through automation, AI-assisted investigations, and agentic security workflows.

As an Agentic Detection & Response Specialist, you'll combine advanced threat investigations with security automation, detection engineering, and AI-driven response capabilities, helping build the next generation of security operations.

Key Responsibilities

• Lead complex incident investigations and advanced security escalations.
• Analyze activity across endpoint, identity, network, cloud, and SIEM platforms to determine scope, impact, and response actions.
• Design, build, and improve detection rules, correlation logic, and investigation queries.
• Develop security automations, integrations, and SOAR playbooks to streamline operational workflows.
• Collaborate with security architects and engineers to implement AI-assisted and agentic security capabilities.
• Identify opportunities to apply AI for investigation support, enrichment, evidence summarization, and response recommendations.
• Act as a technical reference for L1 and L2 analysts, improving escalations, procedures, and operational maturity.
• Drive continuous improvement initiatives focused on reducing alert fatigue, increasing detection quality, and improving response efficiency.

What are we looking for?

• 6+ years of experience in Security Operations (SOC) with solid experience managing L3 investigations or advanced escalations.
• Strong background in Incident Response, Threat Hunting, Detection Engineering, and Security Operations.
• Experience investigating threats across endpoint, identity, network, and cloud environments.
• Hands-on experience with SIEM and EDR/XDR technologies.
• Experience with Microsoft Sentinel, Microsoft Defender XDR, or equivalent security platforms.
• Scripting and automation experience with Python, PowerShell, APIs, or SOAR technologies.
• Interest in applying AI and Agentic Security concepts to real-world operations.
• Ability to own initiatives from idea to implementation and collaborate across technical teams.
• Fluent Spanish and English.

Nice to have:

• Experience with AWS security services.
• Hands-on experience with Torq, Logic Apps, Azure Functions, or similar automation platforms.
• Security Copilot exposure.
• Experience in MDR/MSSP environments.
• Exposure to AI-assisted investigations, LLMs, agents, or orchestration frameworks.

What do we offer?

• Salary determined by the market and your experience
• Fully remote work (optional)
• Flexible compensation (restaurant, transport, and childcare)
• Fully free health insurance, with a co-payment for dental services
• Individual budget for training or equipment and free Microsoft certifications
• English lessons
• Monthly bonus for electricity and Internet expenses at home
• Discount on gym plan and sports activities
• Plain Camp (annual team-building event)
• Extra perks: events attendance and speakers, welcome pack, baby basket, Christmas basket, discount portal for employees The pleasure of always working with the latest technological tools!

Will you let us know you better?

The selection process: Simple, just 3 steps.

• Phone screen
• 2 interviews with the team

What is Plain Concepts?

Plain Concepts is a global company of over 500 people passionate about technology and innovation. Since our founding, we have grown through technical proficiency and confidence in ideas that others might consider risky, creating custom solutions for our clients. With offices in more than 6 countries, our mission is to continue to drive cuttingedge projects around the world.

We are highly committed to technical excellence. We are known for developing highly customized projects, offering specialized technical consultancy and training.

Thanks to the great work of our technicians, we have been recognized for our ability to lead innovative projects that generate value, from artificial intelligence to blockchain, driving solutions that help companies optimize their performance.

What we do at Plain Concepts?

We pride ourselves on being a 100% technical team, dedicated to crafting custom projects from scratch, offering expert technical consultancy, and providing top-tier training.

• Our approach goes beyond traditional outsourcing; we focus on creating value together with our clients.
• Our teams are diverse and multidisciplinary, operating in a flat, collaborative structure.
• We live and breathe AGILE principles, ensuring flexibility and efficiency in everything we do.
• Knowledge-sharing is at our core: from supporting each other internally to contributing to the broader tech community through conferences, events, and talks.
• Innovation drives us — even the boldest ideas are welcome here.
• Transparency underpins all our relationships, fostering trust and long‑term partnerships.

Want to learn more?

At Plain Concepts, we certainly seek to provide equal opportunities. We want diverse applicants regardless of race, colour, gender, religion, national origin, citizenship, disability, age, sexual orientation, or any other characteristic protected by law.