Vladan Popovic ============== Senior software and systems engineer ------------------------------------ "Bulevar Oslobodjenja" 150/51, 11042 Belgrade, Serbia Tel : +381621436099 E-mail: vladanovic@gmail.com Profile ======= Skilled software developer and systems engineer experienced in multiple fields with more than 15 years of professional experience. FOSS enthusiast, honorary member of Macedonia's Free Software NGO and Belgrade's first hackerspace. My `Linked-In `_ (https://www.linkedin.com/in/vladan-popovic-957ab733), `GitHub `_ (https://github.com/vladan) `and Gitea `_ (https://gitea.vp.mk/vladan) profiles may provide more info if needed. Skills and toolset ------------------ Extensive knowledge of the web stack. Experienced in developing, designing and automating distributed and monolith systems on various infrastructures. Keen on refactoring for the greater good. Striving for balance between meeting business needs and producing maintainable, tested and well documented software that wouldn’t be usurped by technical debt. I'm a long time GNU/Linux user of many flavors like Arch, RHEL, CentOS, Fedora, Debian, Ubuntu, Alpine, ... I use VIM and Emacs as text and code editors / IDEs, mainly Sphinx (rst) and PlantUML for documentation. Python is the language and ecosystem I have the most experience with. Web apps with Django, Flask, SqlAlchemy, etc. Async network communication with gevent and asyncio, small helper scripts that are too complicated to implement in bash, automation scripts, etc. Rust is the language I spend most of my free time with experimenting on various fields, from low-level queues to frontend web applications in WebAssembly, for which I also use Elm with great joy. For virtualization I use KVM / QEMU, also experimented with Firecracker / Cloud hypervisor and similar new technologies. Used to manage infrastructure on AWS, OpenStack, Apache Mesos and Kubernetes and used Ansible for setting up the servers. I have a fair experience with GitLab CI and Jenkins and have some repos on Drone CI. Experience with Apache Kafka, RabbitMQ, MQTT, ZMQ for message distribution and Protobuf, FlatBuffers, Cap'n Proto for packing objects. NoSQL with Apache CouchDB and fair experience with PostreSQL. Languages --------- Macedonian is my native language. I also speak English and Serbian fluently and have a fair knowledge of German, with a C2 degree in 2001. Work Experience =============== | Aiven (2021-2022) - Site Reliability Engineer ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ SRE in a dynamic multicloud setup consisting of tens of tousands of nodes, offering managed Postgres, Kafka, Clickhouse, Mysql, Elastic/Opensearch, etc. Sigma Technology (2019-2021) - Senior Engineer ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Consultant in Ericsson LabOps team in Linköping - Sweden. Worked on automating the infrastructure procurement for the R&D department in Ericssons own private cloud management solution running on-site. My responsibilities included leading the team, implementing best practices by reviewing most of the code (in Gerrit) and maintaining a Jenkins CI/CD pipeline (code-test-deploy automation). Seavus - Senior Engineer (2019) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Responsible for maintaining a big data pipeline for Sunrise, a Swiss Telecom provider. Based on the Hortonworks appliance (Ambari, Spark, Kafka, HDFS, Hive) with the code written purely in Scala. TradeCore - Python Lead (2017-2018) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Reduced the technical debt by refactoring, planning and discovering bottlenecks and bad/redundant implementations. Improved the development flow, enforced a stronger code review practice and python coding standards for the main product written in Django, which also utilized PostgreSQL, ElasticSearch, Celerry, etc. Introduced a solid CI/CD infrastructure by automating the Selenium tests and frontend packaging for ~25 environments, GitLab Review Apps, etc. RedHat - Software Engineer - OpenStack (2013-2014) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Development and RPM packaging of OpenStack Nova. Tested, debugged and deployed various OpenStack scenarios and use cases. Itekako - Python Lead (2012-2013, 2014-2017) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Designed a scalable cloud solution and built a complete platform for home security cameras with Python, JSON-RPC with TinyRPC, gevent, Protobuf, FFMpeg, uWSGI and Live555, hosted on AWS. Reduced a couple of clients’ development and deployment overhead by dockerizing their complete infrastructures. Created a machine-generated-content service by implementing a ranking algorithm in PostgreSQL and optimized critical DB queries. Asseko - Software Developer (2010-2011) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Part of a new team working on a complete rewrite of a legacy proprietary Banking Software in C# and MSSQL.