Senior CRM Tech Manager

 ⭐️ CoreStar is a dynamic technology company supporting partners in heavy-load industries with high-performance solutions. Our expert teams bring a startup-driven mindset, focusing on innovation, collaboration, and efficiency in every project. At CoreStar, you’ll have the opportunity to grow your skills, tackle exciting challenges, and directly contribute to impactful products.

📌 Key Responsibilities:

• Own the end-to-end lifecycle of sending domains and IPs, including procurement, configuration, authentication, monitoring, warm-up, and optimisation.
• Monitor and improve sender, domain, and IP reputation and overall email deliverability.
• Design and maintain scalable, high-volume email infrastructure, including SMTP/ESP architecture and domain/IP rotation.
• Manage email authentication and alignment across SPF, DKIM, DMARC, and DNS.
• Monitor deliverability metrics, analyse logs, troubleshoot ISP/ESP issues, and lead incident resolution.
• Maintain the health of CRM infrastructure to ensure reliable delivery of customer communications.
• Work with CRM platforms, APIs, email/SMS services, and other IT systems supporting customer communication.
• Use SQL and data analysis to investigate issues, identify trends, and optimise infrastructure performance.
• Work closely with technical teams on requirements, technical specifications, architecture, scalability, integrations, and automation.
• Continuously optimise email infrastructure for reliability, scalability, and deliverability.

📌 Requirements:

• 2+ years of professional experience in email infrastructure and deliverability.
• Strong hands-on experience with high-volume email systems and complex sending architectures.
• Strong technical knowledge of SMTP, DNS, SPF, DKIM, DMARC, and email authentication.
• Experience with IP/domain reputation management, domain warm-up, and deliverability monitoring.
• Experience troubleshooting ISP/ESP delivery issues, SMTP errors, logs, and infrastructure incidents.
• Strong SQL, API, and CRM automation skills.
• Experience with CRM systems and infrastructure supporting customer communications.
• Good knowledge of HTML email layout and template coding.
• Strong analytical, troubleshooting, and ownership skills.

📌 Nice to have:

• Experience launching and operating a custom SMTP server.
• Experience with cold email campaigns and high-volume outbound sending.
• Experience with CRM platforms such as Fast Track, Customer.io, Optimove, or similar.
• Familiarity with email deliverability and warm-up services such as Warmy.
• Experience with communication platforms such as Twilio and similar SMS services.
• Experience with event-driven CRM architecture, automation architecture, and API integrations.
• Experience working with advanced DMARC analytics and deliverability monitoring tools.

📌 Benefits:
🏝 24 working days of paid annual leave 
🤝 6 days of paid sick leave  
🖊 Official employment
📄 Medical insurance
☕️ Coffee zone with fruit & snacks available in the office 
🥗 Corporate Lunch provided by the company
💪 Gym and sports classes 
🙌 Healthy and friendly work atmosphere  
📚 Greek and English language classes (partially covered)

Join us and be one of the Core Stars! ⭐