Mark Grennan
About Mark Grennan
Mark Grennan is a Senior Software Engineer at Telnyx, specializing in backend engineering and microservices architecture. He has a strong background in programming with Python and Elixir, and has experience in teaching mathematics and IT.
Work at Telnyx
Mark Grennan has been employed at Telnyx since 2022, initially serving as a Software Engineer specializing in Elixir. He transitioned to the role of Senior Software Engineer in 2023. His work primarily focuses on backend engineering with an emphasis on microservices architecture. During his tenure, he has utilized various technologies and tools to enhance the performance and reliability of software systems.
Education and Expertise
Mark Grennan holds a Master of Science in Computer Science from Trinity College Dublin, which he completed from 2018 to 2019. He also earned a Bachelor of Science in Mathematical Science from University College Dublin between 2006 and 2010. Additionally, he obtained a Post Graduate Certificate in Education in Mathematics Teacher Education from the University of Oxford in 2012. His educational background supports his expertise in software engineering and mathematics.
Background in Teaching
Prior to his career in software engineering, Mark Grennan worked as a teacher at Sandford Park School in Ranelagh, Dublin 6, from 2016 to 2018. He taught subjects including Mathematics, Applied Mathematics, and IT. This experience contributed to his strong analytical skills and ability to convey complex concepts effectively.
Technical Skills and Tools
Mark Grennan specializes in backend engineering and employs a diverse tech stack in his work. He utilizes Python with asyncio, aiohttp, and aiojobs for asynchronous programming tasks. For monitoring and alerting, he incorporates Prometheus, Grafana, and Alertmanager. His experience also includes using Docker, Kubernetes, PostgreSQL, Kafka, and RabbitMQ for developing distributed systems and managing data.