Stellar Cyber

Senior Technical Support Engineer

Portugal full-time Senior Salary not listed
full-time Senior level Technology & IT Curated
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About the role

Join a fast-growing global leader in cybersecurity, trusted by some of the biggest names in the industry. In addition to some of the world’s largest enterprises and government agencies, more than 30% of the world’s top MSSPs rely on our platform. We’re at the forefront of protecting organizations against sophisticated cyber threats using cutting-edge AI and automation technologies. Our culture is built on diversity, openness, and collaboration, fostering creativity and innovation that drives real impact in the market.

We are seeking a Senior Technical Support Engineer to actively participate in advanced technical support operations for our market in Portugal regarding our SIEM and cybersecurity platform. This role is responsible for customer escalations, complex break-fix troubleshooting and operational excellence. The ideal candidate has deep technical expertise and thrives in high-severity incident scenarios.

Please note, as part of our interview process, we may invite candidates for an in-person interview to meet with our team.
Technical & Escalation Management:

Act as the primary escalation point for critical and high-impact customer issues

Lead and perform hands-on troubleshooting for complex break-fix scenarios involving:

SIEM pipelines, log ingestion, parsing, normalization

Network security, IDS/IPS, endpoint, and cloud telemetry

Performance, scalability, and data integrity issues

Participate directly in support ticket rotation, including on-call and weekend coverage

Drive root cause analysis (RCA) and ensure corrective and preventive actions are implemented

Customer Engagement:

Engage directly with customers during Severity 1 / business-impacting incidents

Communicate clearly and confidently with security teams, architects, and leadership

Set expectations, provide status updates, and lead incident resolution calls

Translate technical findings into actionable customer guidance

Cross-Functional Collaboration:

Work closely with Engineering, Product, DevOps, and SOC teams

Advocate for supportability and operational readiness in new releases

Provide feedback from customer issues to influence product improvements

Assist with release validation, upgrades and complex customer deployments

Requirements
Technical Skills:
Deep understanding of:

SIEM architectures and log pipelines

Network protocols (TCP/IP, DNS, HTTP, Syslog)

Linux systems, troubleshooting, and performance tuning

Hands-on experience with:

Log parsing and normalization (regex, JSON, CEF, LEEF)

Cloud platforms (AWS, Azure, GCP)

Security technologies (firewalls, IDS/IPS, EDR, IAM)

Strong troubleshooting skills across distributed systems

Preferred Qualifications:

Experience supporting enterprise or MSSP customers

Background in SOC operations or incident response

Familiarity with Elasticsearch, Kafka, Kubernetes, or similar platforms

Experience operating in 24×7 global support environments

Experience:

5+ years of experience in technical support, systems engineering, or security operations

Strong background in SIEM, cybersecurity, or large-scale observability platforms

Portuguese fluency is a must for this role.

Originally posted on Himalayas

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Senior
Technology & IT Operations Senior Technical Support Engineer Senior level

Likely questions

  1. Tell us about work you have done that is close to the Senior Technical Support Engineer role.
  2. How would you approach your first 30 days at Stellar Cyber?
  3. Which of Operations, Senior and Technical have you used recently, and what did it help you achieve?
  4. How have you led people, improved a process, or made a hard decision in a previous role?
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with Operations, Senior and Technical.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Senior Technical Support Engineer role because I can bring practical experience in Operations, Senior and Technical, learn the team quickly, and contribute to the outcomes Stellar Cyber needs from this hire.

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