Feb 2018 – Sep 2018 · 7 mos · Ljubljana, Slovenia · Remote

• c++: c++20, cmake, Google benchmar, folly, speed log
• Python: pyramid, pytest, Selenium
• Infra: AWS, cloud monitoring, Docker, Docker-compose, Docker Swarm, Kafka, Jenkins (CI & CD), FIX, PostgreSQL, REST, Timescale, WebSockets
• defined and executed technical vision, tech. roadmap
• designed a high performance crypto asset exchange
• lead technical compliance efforts in order to get MTF licence
• lead and implemented PCI DSS compliance
• designed and documented architecture that was audited and complied to ESMA guidelines and MiFID 2
• presented work on international conferences
• identified common compliance problems and improved KYC&AML processes
• worked with compliance department to define compliance vision and (internal) tools
• defined and implemented Continuous Testing, Integration, Delivery and Deployment processes
• lead and mentored teams
• introduced processes for remote work
• worked with leadership to define thread analysis
• defined security protocols and worked with partners on penetration testing
• introduced interdepartmental processes to lower time in meetings
• introduced demo days for the whole company to get feedback and reality check
• structured development processes using Google’s study key findings about high-performance teams (psychological safety, dependability, structure and clarity, meaning, impact)
• defined development workflows
• introduced Weekly tech talks for the tech department

Oct 2017 – Feb 2018 · 4 mos

• Javascript: Vue.js
• Python: Django, pytest, Selenium
• Infra: AWS, cloud monitoring, Docker, Docker-compose, FIX, Jenkins (CI & CD), MySQL, MariaDB, PostgreSQL, REST, WebSockets
• defined interim technical vision and lead the implementation
• lead and mentored the team
• worked with leadership to define 1 on 1 monthly meetings and OKR processes for the tech department
• presented and helped implement Google’s key findings about high-performance teams
• introduced Weekly bug analysis reports reflecting what kind of knowledge the team would benefit from
• introduced Docker and containerized the project
• introduced, designed and implemented CI & CD pipelines
• lead the transition from a legacy project
• introduced QA test automation (pytest, Selenium)
• introduced +10k parameterized tests
• optimized CI pipeline to finish +10k tests under 10min
• full stack development

Apr 2017 – Oct 2017 · 6 mos

• Tech: Python, pytest, Selenium, tox, detox, Django, Vue.js, JS, Jenkins, CI, CD
• full stack development
• introduced, designed and implemented CI & CD pipelines
• introduced QA test automation (pytest, Selenium)
• introduced +10k parameterized tests
• optimized CI pipeline to finish +10k tests under 10min

May 2017 – Sep 2017 · 4 mos

• Tech: pytest, Python, tox, detox, Docker, Docker-compose, Jenkins
• lead and implemented the transition from a legacy financial project
• test automation
• containerized the project (with Docker)
• designed and implemented CI & CD pipelines
• parameterized tests
• lead transition from Python2 to Python3

Nov 2015 – Mar 2016 · 4 mos · Remote

• Tech: Python, React, Jenkins,, NodeJS, JS, Jenkins, Docker, Docker-compose, CI
• solved performance issues
• solved stability and performance issues
• new feature development

Oct 2015 – Jun 2016 · 8 mos · Ljubljana, Slovenia

• Tech: Selenium, Selenium WebDriver, CI, Jenkins, Docker, Docker-compose, Python, Flask, MySQL,
• flake8, pylint
• project lead and main maintainer of Google's GRC-test repository
• automated QA (from 10 days that the QA team needed to 12min parallel execution for fast developer feedback)
• working tight with existing QA team and automating their tests
• redesigned the test suite from grounds up with horizontal and vertical scaling in mind
• wrote Selenium tests that can run in parallel and on multiple nodes
• set up the infrastructure for running tests on distributed servers with Selenium-grid
• integrated tests with company's CI, enabling developers to test their code on every pull request
• all the source code now complies with Google standards

Oct 2015 – Mar 2016 · 5 mos · Remote

• Tech: Python, Bash, AWS, Digital Ocean, Jenkins, CI, Docker, Docker-compose
• designed and implemented plans for product stability
• pushed for and implemented monitoring
• migrated the app from Digital Ocean to AWS
• prepared backup and consistency plans
• integrated acquired product with the existing infrastructure (logging, CI, etc.)

Nov 2013 – Oct 2020 · 6 yrs 11 mos

• IT consultation services with focus on Fintech and Crypto
• Tech: Rust, Python, C++, OnixS low latency FIX engine, Clickhouse, Pandas, Datashader, Dask
• designed and implemented HFT framework for low latency trading and simulation
• designed and implemented data exploration framework for visualizing and exploring HFT data/features (+10B points under 10sec)

Jan 2013 – Nov 2015 · 2 yrs 10 mos · Graz, Austria

• Tech: Python, MariaDB, ZeroMQ, Celery, Docker, Django, Flask, Python multiprocessing, MySQL, Galera cluster, SOAP, REST
• developed an ETL solution from the ground up that scales horizontally and vertically
• supporting DevOps and helping developing a scaling architecture for a multinational from the ground up based on Docker (infrastructure planning, testing and optimization), MariaDB Galera Cluster
• designed load balancing and burn in tests for the cluster, making sure there are no concurrency issues in the project, processing cluster and the DB cluster
• syncing data between multiple clouds
• developing standards and abstractions for data models that fit all the clouds
• coordinating and planing deployments with other cloud providers
• web apps with SOAP, REST interfaces and handling all the peculiarities of the cloud APIs and their limits
• active part in defining standards, processes and culture in the group (git flow, weekly meetings etc.)
• optimizing DB queries and solving locking issues on long running transactions without compromising customer data integrity
• designing backend solutions for UX

Jan 2011 – Jan 2013 · 2 yrs

• Tech: Apache Kafka, Storm, Trident, pyTables, R, ZeroMQ, Python, Blockchain
• built responsive complex event processing platform
• applied machine learning algorithms to streams for responsive analytics and decision support
• worked with fast out of memory databases (e.g. pyTables), multiprocessing and distributed processing in python and R
• analyzed large databases with machine learning algorithms
• administrated server and network infrastructure (Trident, Kafka)

Jun 2010 – Apr 2011 · 10 mos · Ljubljana

• Tech: OpenCV, FPGA, OpenCl, OpenMP, IMKL, C++, Python
• acquired funding from the Slovenian enterprise Fund (“Slovenski podjetniški sklad”) for the A (P2A) and the B round (P2B)
• presented our work at FRI (Faculty of Computer and Information studies), University of Ljubljana
• customer development
• collaborated with research groups
• presented ideas to investors
• implemented research code for enterprise systems
• implemented production grade state of the art machine vision algorithms

Jan 2009 – Dec 2009 · 11 mos

• Tech: linux-kernel, SELinux, FreeRadius
• implemented a solution for monitoring and responding to anomalous/unwanted network patterns such as file sharing
• constructed workable and maintainable distribution bottom up with tight constraints
• managed boot sequence and runlevel
• built custom kernel
• prepared software to work with/in
• ◦ an unknown network topology
• ◦ multi OS environment
• ◦ unknown hardware configuration
• maintained and supported of software for many companies/clients
• managed remote support without compromising client's infrastructure
• wrote usage, maintenance manuals and documentation for non technical users