IT Security Officer

Salary: 20 000 - 30 000 PLN net + VAT (B2B)

Callstack supports and inspires top industry leaders in shipping better digital products and services to their users. We are a team of high-level experts in cross-platform development and consultancy. We co-create the technology, collaborate with the Meta team on setting the direction for the future growth of the React Native framework, and much more!

We are recognized in the React Native Community as contributors to Open Source projects, organizers of React Universe Conf, as well as speakers at international conferences. We also organize regular community meetups in our HQ in Wrocław, Poland.

We truly believe that you can get the best out of people when you give them a chance to participate and develop. At Callstack you are the one to decide in which area you want to grow, you’ll have an individual self-development budget to empower your competencies and gain new skills.
Our goal is to give every employee the opportunity to speak up and introduce their ideas to build the future together.

Join us and work with the TOP Silicon Valley and Fortune 500 companies in the USA!

We are looking for an IT Security Officer who will take ownership of our day-to-day IT security and infrastructure operations. You’ll be responsible for keeping our systems, devices, identities, and data secure, while also supporting employees and continuously improving our security processes.

This role combines hands-on cybersecurity, IT infrastructure, endpoint management, incident response, compliance, and security awareness. You’ll work closely with employees across the company, internal teams, external security specialists, auditors, and technology vendors.

As an IT Security Officer you will:

• Manage and continuously improve IT security policies, procedures, and controls.

• Maintain and develop security tools, including SentinelOne EDR/XDR, SIEM, and Kandji MDM.

• Monitor security alerts, investigate threats, and coordinate incident response and remediation.

• Manage vulnerability management, endpoint security, access controls, MFA, VPN, and network security.

• Oversee backups, disaster recovery, and data protection.

• Support cloud and email security, including SPF, DKIM, and DMARC.

• Coordinate security audits, penetration tests, risk assessments, and ISO 27001/GDPR compliance.

• Maintain ISMS documentation, security KPIs, and compliance records.

• Support vendor security assessments and customer security questionnaires.

• Promote security awareness and continuously identify opportunities to improve and automate security processes.