Dominik Zabroń
Senior Software Engineer

Cracow,PL (+48) 790 747 110 dominik.zabron@gmail.com

Summary

Result-oriented Software Engineering Professional with over 14 years of experience in developing and optimizing software solutions, with strong focus on data analysis and transformation. Skilled in stakeholder communication and data storytelling, ensuring alignment of technical solutions with business objectives. Extensive experience in Python development, SQL databases, and data visualization. Demonstrated ability to design and implement efficient data processing pipelines, enhance system performance, and support data-driven decision-making. Strong analytical and problem-solving skills, committed to delivering high-quality data solutions that meet business goals.

Skills

Data Engineering

  • SQL (10 years)
  • Pandas (4)
  • NumPy
  • Data Transformation
  • Data Cleaning
  • Plotly
  • Matplotlib
  • Seaborn
  • Data Visualization
  • Data Analysis
  • Data Quality Assurance
  • Data Storytelling
  • Jupyter Notebooks
  • ETL
  • Business Intelligence

Databases

  • PostgreSQL (7)
  • MySQL (2)
  • Microsoft SQL Server (3)
  • SQLite
  • DuckDB
  • Microsoft Access
  • Redis
  • DynamoDB
  • MongoDB
  • InfluxDB
  • PostGIS
  • Data Mesh

Backend Development

  • Python (13)
  • Django
  • FastAPI
  • Flask
  • Django REST
  • Falcon
  • SQLAlchemy
  • SQLModel
  • Pydantic
  • AsyncIO
  • Celery
  • RabbitMQ
  • Node.js
  • Express.js

Frontend Development

  • JavaScript (4)
  • React
  • Vue.js
  • jQuery
  • HTML
  • CSS
  • LESS
  • Bootstrap
  • Tailwind CSS

DevOps

  • Docker (6)
  • Docker Compose
  • Docker Swarm
  • Ansible
  • Nginx
  • AWS
  • Oracle Cloud
  • Heroku
  • Ubuntu
  • CentOS
  • CI/CD
  • GitLab
  • GitHub
  • Git

Experience

Senior Software Engineering Consultant

Cisco Systems 2019.07 – 2024.03
  • Led cross-functional teams in designing, developing, and deploying scalable software solutions, significantly improving client operations and reducing project delivery time
  • Collaborated closely with stakeholders to define requirements and align software architecture with business goals, resulting in optimized performance and cost efficiency
  • Conducted in-depth code reviews and provided mentorship to junior engineers from diverse cultures, enhancing code quality, security, and overall team productivity
  • Developed and implemented automated testing suites and CI/CD pipelines, reducing release cycles and improving deployment reliability
  • Delivered data-driven insights and strategic guidance to clients on software best practices, helping organizations modernize legacy systems and adopt innovative technologies
  • Spearheaded the development of a data mesh platform, enhancing data accessibility and governance across departments to foster decentralized data ownership and streamlined analytics
  • Architected a workflow orchestration system that optimized task automation, reducing manual effort and improving process efficiency across support operations
  • Built a remote development kit, enabling secure, efficient remote management capabilities that streamlined device connectivity and remote administration
  • Designed and implemented a log anomaly detection system that leveraged machine learning to proactively identify network irregularities, and enhancing operational resilience
  • Tech stack: Python, Pandas, Scikit-learn, FastAPI, Django, Flask, Nginx, Docker (Compose, Swarm), PostgreSQL, InfluxDB, SQLite, JavaScript, React, Vue, Angular

Lead Developer

ReSpo.Vision 2021.02 – 2022.03
  • Designed and optimized high-throughput data transformation pipelines, processing thousands of live records daily from diverse data sources using Python and SQL
  • Established data quality assurance protocols and implemented data cleaning procedures, ensuring accurate, clean data flow through the pipeline
  • Created interactive data visualizations and reports using Python libraries (Plotly, Matplotlib) to communicate insights effectively
  • Collaborated with data scientists and analysts to tailor data structures and workflows, facilitating rapid access to actionable insights
  • Tech stack: Python, Prefect, Pandas, FastAPI, Docker, PostgreSQL, Oracle Cloud, JavaScript,Vue.js

Senior Full-Stack Developer

William Hill 2018.07 – 2019.03
  • Architected and developed a dynamic landing page generator, enabling marketing teams to create and deploy campaign-specific pages quickly
  • Implemented a modular, user-friendly interface and backend system, allowing seamless customization of landing pages while maintaining brand consistency and optimizing for conversion
  • Tech stack: JavaScript, React, Node.js, Express.js, AWS, Docker, DynamoDB

Senior Python Developer

William Hill 2017.11 – 2018.06
  • Developed secure APIs to integrate with front-end systems, payment gateways, and third-party providers, enabling seamless communication and interoperability across platforms
  • Collaborated with cross-functional teams to improve payout calculations, and ensure fair play and regulatory adherence in the backend logic
  • Tech stack: Python, Django, Django REST, MySQL, Redis, Celery, RabbitMQ, Nginx, Ansible, Ubuntu

Senior Python Developer

Cherry Group 2016.09 – 2017.10
  • Engineered a high-performance backend system to handle large volumes of real-time transactions, ensuring low latency and high availability in compliance with gaming regulations
  • Optimized data storage and retrieval processes, leveraging caching and database indexing to achieve sub-second response times for critical game functions
  • Built automated monitoring and alerting systems, enabling proactive detection and resolution of backend issues, reducing downtime and improving user experience
  • Tech stack: Python, Django, MySQL, SQLAlchemy, Alembic, Redis, Celery, RabbitMQ, Elasticsearch, Logstash, Kibana, Ubuntu

Python Developer

FutureMind 2016.01 – 2016.08
  • Designed RESTful APIs tailored for mobile app requirements, enabling efficient data exchange and optimizing app performance across multiple devices and network conditions
  • Integrated third-party services and APIs to enhance app functionality, such as real-time notifications and analytics, supporting a seamless user experience and geolocation services
  • Tech stack: Python, Django REST, PostgreSQL, PostGIS, Redis, RabbitMQ, Celery, AWS

Software Engineer

Sesto 2015.06 – 2015.12
  • Developed a robust inventory management system for real-time tracking and analysis of inventory levels, accessible via web and mobile devices
  • Tech stack: Python, Django, PostgreSQL, Bootstrap, HTML, CSS, LESS, Heroku, JavaScript, jQuery

Data Analyst / Senior Data Analyst

SKOK Piast 2013.08 – 2015.03
  • Developed automated reporting dashboards to provide real-time insights into credit, interest rate, and liquidity risks, enabling faster, data-driven decision-making for risk management teams
  • Built and maintained data pipelines that aggregated and processed risk metrics from various sources, ensuring data accuracy and reliability for comprehensive risk assessments
  • Conducted in-depth analysis of historical and current financial data, identifying trends and patterns to support strategic risk mitigation and compliance with regulatory standards
  • Tech stack: Python, Excel, VBA, T-SQL, MS SQL Server

Data Analyst Intern

PwC 2012.11 – 2013.02
  • Analyzed large datasets of journal entries to identify anomalies and ensure data integrity, supporting accurate financial reporting and compliance with auditing standards
  • Tech stack: Excel, VBA, T-SQL, MS SQL Server

Data Analyst Intern

PKP Energy 2011.07 – 2011.09
  • Conducted comprehensive research and analysis on wholesale energy price trends, delivering actionable insights to support pricing strategies and market forecasting
  • Tech stack: Python, Excel, VBA, T-SQL, MS SQL Server

Education

Joint Master Programme in Finance and Accounting

Fachhochschule des BFI Wien, University of Economics in Katowice Quantitative Asset and Risk Management 2010 – 2012

Bachelor in Finance and Accounting

University of Economics in Katowice Financial analyst 2007 – 2010

Languages

Polish: Native
English: C1
German: B1

Interests

  • Investing and Economy
  • Distant travel
  • Gardening
  • Foreign languages
  • History books
  • Strategy games
  • Football (soccer)