Profile I am network architect responsible for developing AAA (Authentication, Authorization, and Accounting) platform, deploying new solutions for managing network resources (e.g. IP addresses, services, VLANs) and configuring network devices in automatic way. I push to make configuration or infrastructure as a code, try to automate manual processes and at the end to continuously deploy changes. Furthermore I am interested in E2E architecture of IT & Network systems and new technologies such as Docker or Kubernetes. I develop my skills using MOOC platforms such as Udacity or Coursera.

ExperienceNetwork Architect

Orange Polska — 2011-now

— automation of the process of configuring one of the new services in the production network by extending the self-made web application with the possibility of configuring the network via the platform API — performing AAA audit during onsite mission and preparing recommendations to solve the problem in the Orange Jordan network after massive PPP session disconnections — migration of AAA platform in Orange Poland network for fixed Internet access services — designing and deploying REST API for AAA platform and LDAP directory — deploying AAA platform for Internet service provider SONATEL in Senegal and OTN in Tunisia with conducting training in Dakar and Warsaw — deploying new solutions in Orange Poland network (e.g. IPv6, RFOG) — launching of trails for new services in Orange Poland network (e.g. FTTH, DOCSIS)

Service platforms specialist

Telekomunikacja Polska — 2008-2011

— developing web application for managing IP address and generating configuration for devices in network  — development of AAA platform for B2C and B2B subscribers

CCNA instructor

WAT — 2010

— conducting one semester of the CCNA course

IT administrator

Sollers Consulting — 2008

— administration of LAN network and servers

C# programmer

Gemius — 2007-2008

— developing an application used in the Megapanel PBI research

Sebastian Czech

502 857 398 sebastian.czech@ymail.com

sebastianczech.com

ul. Chałubińskiego 4B/2 05-825 Grodzisk Mazowiecki

Education

Skills

Wojskowa Akademia Techniczna w Warszawie — 2004-2009

studies: computer science, specialty: ICT networks

Polsko-Japońska Wyższa Szkoła Technik Komputerowych w Warszawie — 2011-2012

postgraduate studies: mobile communication networks

Udacity - 2018 Mobile Web Specialist Nanodegree Program

Orange France - 2019 Overall Architect Training

Service platforms (AAA, DHCP, LDAP)

CI/CD (Git, Jenkins, Ansible, Robot framework, CircleCI, GitHub Actions)

Linux / Unix (Debian, Solaris)

Monitoring (Elasticsearch, Logstash, Beats, Kibana, InfluxDB, Prometheus, Grafana)

Virtualization, containerization (OpenStack, Docker)

Messaging (RabbitMQ, Kafka)

Cloud solutions (Kubernetes, Mesos)

Web pages (HTML5, CSS3, AJAX, jQuery)

Applications in cloud (Heroku, Firebase)

Responsive Web Design (MaterializeCSS)

Scripts (Bash, Python)

Web applications - Templates (Thymeleaf, FreeMarker)

E2E IT & Network architecture (UML, patterns, frameworks)

Web applications - Java (Spring Boot)

SQL databases (Oracle, PostgreSQL)

Web applications - Python (Django, Flask)

NoSQL databases (MongoDB, Redis)

Web applications - Go (HttpRouter, Beego)