Curriculum vitae Dmitry Karasik +45 22 46 12 23 dmitry.karasik@gmail.com https://www.linkedin.com/in/dmitrykarasik https://github.com/dk Professional profile Senior software engineer with over 25 years of experience in Linux-based systems, backend development, and infrastructure. Specialized in building stable solutions in complex environments. Combines deep technical expertise with a pragmatic approach and strong problem-solving skills. Extensive experience from professional environments. Core competencies Linux / Unix systems engineering Full-stack development Networking & System architecture Relational databases (SQL) DevOps & Automation Open-Source technologies Performance optimization Problem-solving & Troubleshooting IT Security at system, code, and network levels Professional experience 2018–Present Telia A/S & Norlys A/S Telecommunications Develop and maintain software systems for telecommunications infrastructure, focusing on stable operation and scalability Work across backend development, system integration, networking, automation, and security Contribute to robust production environments with high uptime and performance requirements Ensured system stability and implemented IT security solutions, including code quality and network protocols Technologies: Linux, Perl, Python, C, PostgreSQL, Redis, Telco, SSL, TCP/UDP, Networking, NSO, Automation, SNMP, gRPC, docker, k8s, CI/CD, git/gitlab/github 2012–2017 Novozymes A/S R&D, Biotech Developed software for research and development environments Worked with search, data analysis, and web technologies Contributed to internal tools for managing biological data Technologies: Linux, Perl, PostgreSQL, Xapian, Web, Biotech, Node.js, Vue.js, React 2009–2012 Xact Consulting A/S Language Systems Developed solutions for automatic translation of legacy code systems (CA-Ideal/Natural > EGL/Java) Analyzed and transformed existing codebases Technologies: Perl, Linux, Java, parsing, compiling, CLI tools 2007–2009 Capmon A/S Monitoring Developed a standalone Linux-based monitoring system Integrated with multiple platforms and protocols Technologies: Perl, C, C++, Java, JavaScript, Linux, Windows, WMI/WinRM, SNMP, TCP/UDP 2006–2007 Magenta ApS Web CMS Developed backend solutions for web systems Technologies: Linux, Apache, MySQL, mod_perl 2003–2005 Catpipe ApS Monitoring Designed and implemented an email system to handle high-volume traffic Focused on stability and efficient processing Technologies: Perl, Ruby, PostgreSQL, FreeBSD Education 2000–2003 University of Copenhagen Faculty of Health Sciences PhD in Computer Science – Worked on image analysis and mathematical modeling 1997–2000 University of Copenhagen Computer Science Software development for microbiology research 1990–1995 Dnipro State Chemical University Organic Chemistry Cand.Sci in organic chemistry Additional Information Languages Danish (advanced / professional) English (fluent) Ukrainian & Russian (native) Cultural Background Born in Ukraine, residing in Denmark since 1997 Extensive experience with Danish work processes and collaboration culture Interests Technology, open source, AI, problem solving, running (DHL Relay), playing in a rock band