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Salary
$40k – $80k per year (gross)
Location
In office (Vilnius, Kaunas)
Seniority
Senior
Employment
Full-Time

First seen by Alion on Oct 21, 2026.

Overview
Company
Impact
Profile match
Tesonet is a Lithuanian technology accelerator and holding founded in 2008 and headquartered in Vilnius. It builds and scales software businesses in cybersecurity, data and consumer products. Several of the largest Lithuanian technology companies grew out of it.

Job Description

The relentless fight against cybercrime is our daily mission. Our Security team is on the frontlines, building a robust defense system with solid security tools and vigilant monitoring. We don’t just react — we proactively engineer a layered security posture with strong processes and training programs to make passive defenses our first line of attack.

Each day, we leverage a powerful arsenal of industry-trusted security solutions, including, but not limited to, EDR/XDR, MDM, HIDS, NIDS, DLP, or SOAR solutions. We collect threat intelligence information and absorb it in our systems to strengthen our company’s security posture and prevent cybersecurity incidents.

  • Design, configure, and fine-tune security alerts across cloud platforms, firewalls, servers, and endpoints;
  • Own and optimize host-based intrusion detection and cloud monitoring tools, ensuring they operate efficiently;
  • Track threat intel, vulnerability feeds, and security news to stay ahead of emerging risks;
  • Assess new threats against our current security posture. Work with teams to implement fixes and config changes to protect the organisation;
  • Monitor and investigate alerts, distinguish between genuine security incidents and false positives before escalating to specialized teams.

Requirements

  • SOC experience in Threat Intelligence or Detection Engineering;
  • Strong querying skills: write complex queries in KQL, SQL, SPL, or Lucene. Not only relying on pre-built dashboards;
  • Scripting in Python or Bash. Automate triage tasks, interact with security APIs, deploy custom detections;
  • Experience writing detection rules and alerts for HIDS, SIEM, or cloud workload protection platforms;
  • Understanding logging architecture in cloud, next-gen firewalls, and Linux;
  • Hands-on experience with enterprise XDR/EDR;
  • Analytical mindset. Fast, accurate triage to reduce alert fatigue;
  • You regularly consume threat intel and turn it into defensive action.

Company offers

  • Growth and learning opportunities: time dedicated to learning, conferences, online learning platforms, and books for your professional development;
  • Health and wellness: we want you to feel and be your best. That's why we offer various benefits, from online workouts and a physical coach to health insurance and regular mental health checks;
  • Tools of your choice: choose the technical equipment and tools you need to do your best work;
  • Community and celebrations: get ready for long-lasting traditions such as yearly workation, Friday get-togethers, various team buildings and company celebrations;
  • Work-life balance: We encourage working in the office, with the possibility of up to two remote days per week. Plus, with our WFA policy, you can work from almost anywhere in the world;
  • More days off: additional vacation days depending on your tenure;
  • Premium Surfshark accounts: for you, your family, and friends;
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