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Posted Jobs
Explore current and recent Castellum Labs job roles across business development, design, SOC/SIEM engineering, and threat intelligence. Open each role to view the detailed job description and apply instructions.
Business Development Manager
Cybersecurity business development role focused on sales campaigns, marketing execution, customer conversations, follow-ups, and initial service pitching.
Role Overview
This role is for cybersecurity marketing and sales activities focused on email campaigns, social media, customer calls, customer follow-ups, and web meeting scheduling.
Primary Activities
- Email campaigns
- Website optimization and SEO support
- Social media content management
- Cold and warm calling campaigns
- Follow-ups after campaigns
- Initial pitching on web calls
Skills Needed
Strong communication, creative writing, basic social media knowledge, presentation ability, productivity tools, and confidence in customer conversations.
Best Fit
Good for people who want to build a serious cybersecurity and IT-infra specific business development career, not a generic sales role.
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Business Development Intern
Entry-level business development role derived from the Business Development JD, suitable for fresh MBA candidates or early-career candidates interested in cybersecurity sales and marketing.
Role Overview
This role supports cybersecurity business development activities and prepares fresh candidates for a permanent sales and marketing role.
Expected Activities
- Email campaign support
- Customer research and database updates
- Social media and campaign support
- Follow-up tracking
- Learning cybersecurity service positioning
Skills Needed
Good communication, willingness to learn cybersecurity services, basic presentation skills, writing ability, and discipline in daily execution.
Best Fit
Freshers who want to build a long-term sales and marketing career in cybersecurity, not people looking for a light internship certificate.
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Graphics Designer and Web Developer
Creative and website role for cybersecurity product, marketing, and sales activities, focused on content creation, website updates, SEO, and sales collateral.
Role Overview
This role owns design creatives, website updates, brochures, decks, service collateral, event material, and product UI/UX support.
Responsibilities
- Create social media creatives, images, PDFs, and posts
- Create explainer videos for services and products
- Maintain company website with weekly updates
- Create brochures, flyers, and sales collateral
- Support product teams with UI/UX concepts
Skills Needed
Adobe Creative Suite, strong portfolio, design principles, composition, color theory, website publishing, SEO basics, and attention to detail.
Best Fit
A designer who can also maintain web pages and publish content. Pure design-only candidates will not be enough for this role.
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SOC/SIEM Administrator
SOC/SIEM engineering role focused on SIEM stack administration, detection rules, alerting, dashboards, incident runbooks, automation, and platform components.
Role Overview
This role works on engineering and infrastructure of an advanced SIEM/SOC solution stack for collection, storage, correlations, alerting, and incident lifecycle management.
Responsibilities
- Configure SIEM rules and alerts
- Build dashboards and visualizations
- Maintain incident runbooks
- Support incident automation
- Work on OpenSearch, ELK, Cortex, Linux, shell, and Python
Skills Needed
Linux, cloud, shell, Python, security fundamentals, GitHub, cyber attack concepts, threat intelligence, and interest in SOC/SIEM engineering.
Best Fit
People from networking, sysadmin, Linux, cloud, or security automation backgrounds who want to build and operate SOC/SIEM platforms.
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Cyber Threat Intelligence Trainee
Technical trainee role focused on darkweb hunting, OSINT, threat research, darkweb signal analysis, and utility development using Python and shell.
Role Overview
This trainee role prepares the candidate to become a next-generation threat intelligence analyst with focus on darkweb, OSINT, investigations, and cyber threat research.
Responsibilities
- Conduct deep hunts on darkweb
- Analyze breaches, chatter, stolen data, and darkweb findings
- Review platform-generated darkweb signals
- Use OSINT tools and methods
- Develop utilities using Python and shell
Skills Needed
Cyber threats, attack vectors, OSINT tools, darkweb exploration, Tor network knowledge, Linux, Git tools, cloud basics, Python, Perl, and shell.
Best Fit
Freshers or early-career candidates who have already explored OSINT, darkweb, threat research, Git tools, and cyber investigations on their own.
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Cyber Threat Intelligence Analyst
Deep technical threat intelligence role focused on darkweb investigations, OSINT, threat actor tracking, threat source research, and darkweb data analysis.
Role Overview
This is a deep technical role for darkweb search, investigations, hunting, threat actor research, OSINT correlation, and cyber threat intelligence analysis.
Responsibilities
- Conduct deep hunts on darkweb sources
- Analyze findings, breaches, chatter, files, and stolen data
- Review technology platform signals
- Track threat actors, threat sources, and threat data
- Develop tools for darkweb data analysis
Skills Needed
Practical knowledge of cyber attacks, exploitation models, formal OSINT, Tor, Git tools, darkweb exploration, Linux, cloud environments, Python, Perl, and shell.
Best Fit
People who can show real OSINT/darkweb work, tools, scripts, investigations, final-year projects, internships, or self-driven research.
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