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! ⭐