Wojtek Burakiewicz
Verified Expert in Engineering
Software Developer
Amsterdam, Netherlands
Toptal member since July 6, 2020
Wojtek is an experienced Python developer with a passion for APIs and microservices that are simple, scalable, and reliable. Throughout his career, he worked in a nanosecond-sensitive trading environment, on web hosting, and eCommerce platforms. He designed and implemented highly available applications, worked on continuous delivery across the globe, and wrote services handling terabytes of data per day.
Portfolio
Experience
- Python - 12 years
- DevOps - 10 years
- PostgreSQL - 7 years
- Flask-RESTful - 4 years
- Ansible - 4 years
- Amazon Web Services (AWS) - 2 years
- Django REST Framework - 1 year
Availability
Preferred Environment
NGINX, PostgreSQL, Vim Text Editor, PyCharm, Python, Linux
The most amazing...
...continous delivery system I developed was based on Ansible Python and Flask, releasing hundreds of changes per day across the globe.
Work Experience
Site Reliability Engineer
Mambu, GmbH. - SaaS Banking Platform
- Streamlined zero-downtime continuous delivery of highly available applications.
- Designed internal APIs to support a high-throughput build environment.
- Collaborated with the legal team to ensure full compliance of the release process.
Senior Back-end Developer
Optiver
- Developed solutions to automate, monitor, and scale the global production environment.
- Delivered solutions in the form of internal websites, microservice APIs, and command line tools.
- Managed software projects from inception to delivery.
Data Miner, Competitor, Kaggle Master
Kaggle Platform
- Won 2nd place in the MasterCard Data Cleansing Competition. Implemented multiple models to build predictions based on data supplied by MasterCard. https://www.kaggle.com/c/mastercard-data-cleansing-competition-finals/leaderboard.
- Achieved a Kaggle ranking of 90 out of 40,000 platform members in 2014.
- Implemented various machine learning models in R and SciPy. Models ran on AWS EC2 using MongoDB.
Full-stack Developer
Byte Internet
- Developed all aspects of the web hosting platform, including the database, web, file, and mail-server configuration and tuning, IP-level load balancing, firewalls, spam filtering, and caching-proxies.
- Managed a multi-server HA MySQL deployment with replication for high availability, easy maintenance, and transparent database migrations between servers.
- Instrumented MySQL server code to gather per user CPU usage numbers. The numbers translated directly to consumer billing, increasing the company revenue by 10%.
- Set up and provided training for an automated configuration management system using Puppet and Ruby.
Junior Researcher, Ph.D. Student
Centrum voor Wiskunde en Informatica
- Collaborated with a team of physics researchers on the visualization of high volumes of spectroscopy simulation data as a part of his research project.
- Developed a data visualization system using OpenGL and VTK.
- Optimized C++ code to run simulations efficiently.
HPC Programmer
ICM, Warsaw University
- Optimized and vectorized the MetOffice weather forecasting model to run efficiently on CrayX1.
- Parallelized C and Fortran applications using OpenMP (shared memory) and MPI (cluster) techniques.
- Optimized and ported scientific software to run on Cray X1 architecture.
IT Intern
Telekomunikacja Polska
- Simulated company income from VIP customers depending on varying pricing schemes.
- Optimized code to run efficiently and in real-time.
- Developed the back-end to store historical customer data.
Experience
Log Collection System
Education
Master of Science Degree in Applied Mathematics
Warsaw University - Warsaw, Poland
Skills
Libraries/APIs
Flask-RESTful, jQuery, SQLAlchemy, SciPy, Pandas, OpenGL, MPI
Tools
Ansible, Bamboo, Celery, GNU Make, GitLab CI/CD, PyCharm, Vim Text Editor, NGINX, RabbitMQ, Grafana, Puppet, Google Kubernetes Engine (GKE), GitLab, IPython
Languages
Python, SQL, JavaScript, Perl, Go, R, C++, Fortran, Visual Basic
Frameworks
Flask, Django, Django REST Framework
Paradigms
DevOps
Platforms
WordPress, Debian, Linux CentOS 7, Docker, Linux, Magento, Amazon EC2, Amazon Web Services (AWS)
Storage
PostgreSQL, MySQL, MongoDB, InfluxDB
Other
APIs
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