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Location

Poland

Rate

$55  / per hour

Years of experience

34+

About

I am a highly analytical software engineer with over eight years of experience as a Solution Architect at renowned companies such as Fiserv, Credit Suisse, Roche, mHipoteczny Bank, and Orange. My expertise spans Business Intelligence, Data Modeling, Data Warehousing, and ETL processing, with a deep understanding of Oracle, MS-SQL, MariaDB, Elasticsearch, MongoDB, and Snowflake. I am an authorized ORACLE University trainer, certified in SQL, DBA, PL/SQL, and Java, as well as an experienced MS-SQL trainer. My technical skills include Java, Perl, Python, JavaScript, React, Node.js, HTML5, Ajax, and CSS. My experience includes working on large-scale projects, developing and advising on data warehouse solutions, business intelligence applications, and enterprise-level software systems. In my role at Fiserv, I served as the Senior Architect and Head of Development for Enterprise Data Management, leading the development of robust data solutions. At Credit Suisse, I managed the Polish department for Global Money Market, overseeing the development and delivery of critical systems. My tenure at Roche involved architecting intranet solutions and data warehouse architectures. At mHipoteczny Bank and Canal+, I focused on Oracle ETL, DWH, and Business Intelligence development. My diverse experience also includes significant project management roles at Orange Telecom and Television Polsat, where I managed various technical and business projects, from ERP systems to mobile payment solutions. With a strong foundation in both technical and managerial skills, I have a proven track record of delivering complex projects on time and within budget.

Tech Stack

Oracle, JavaScript, PL/SQL, SQL, XML

Experience

  • Solution Architecture Development: Designing and developing comprehensive solution architectures for enterprise data management, business intelligence, and data warehousing projects at companies like Fiserv, Credit Suisse, Roche, and mHipoteczny Bank.
  • Project Management: Leading and managing large-scale IT projects using methodologies such as ITIL, Agile, SCRUM, and Prince2. This includes overseeing project planning, execution, and delivery while ensuring adherence to timelines and budgets.
  • Data Warehouse and ETL Processing: Developing and maintaining data warehouse solutions, including ETL processes, data modeling, and data integration, to support business intelligence and analytics needs.
  • Technical Leadership and Team Management: Leading development teams, providing technical guidance, and mentoring team members to ensure high-quality code and successful project outcomes.
  • Business Intelligence Development: Creating and implementing business intelligence solutions, including data analysis, reporting, and visualization, to support decision-making processes within organizations.
  • Training and Certification: Serving as an authorized ORACLE University trainer, delivering training sessions on SQL, DBA, PL/SQL, and Java, and certifying professionals in Oracle Business Intelligence and other related technologies.
  • Technical Advisory and Consulting: Providing expert advice on technical and business aspects of technology, including ETL, IT, and telecommunication, to organizations such as Orange Telecom and Television Polsat, and managing various technical projects and initiatives.

Employment history

Senior Architect, (Head of Development), Fiserv (Firstdata Polska) January 2020 - present

Develop comprehensive solution architectures for enterprise data management projects, ensuring alignment with business requirements and technology standards.
Create high-level design documents and technical specifications to guide the development and implementation of data management solutions.
Lead the development team in building and maintaining enterprise data management systems, including data warehouses, ETL processes, and data integration solutions.
Oversee the entire development lifecycle, from requirements gathering and design to coding, testing, and deployment.
Define and implement data management strategies, including data governance, data quality, and data security policies.
Ensure that data architecture and infrastructure support the organization’s goals for data accessibility, reliability, and performance.
Conduct regular code reviews and provide technical guidance to ensure that development practices adhere to best practices and coding standards.
Implement tools and processes for continuous integration and continuous delivery (CI/CD) to streamline development workflows and improve code quality.

Regional Manager for Poland (Global Money Market), Credit Suisse September 2017 - January 2020

Lead the Polish department responsible for the development and delivery of Global Money Market (GMM) applications, ensuring high-quality and timely project completion.
Oversee the end-to-end development lifecycle, from initial requirement gathering through design, development, testing, and deployment.
Serve as the Senior Architect for UserPortal, Oracle, Java, and Unix-based systems, providing technical direction and architectural guidance to the development team.
Design and implement robust, scalable, and secure solutions that meet the needs of the Global Money Market business unit.
Manage a team of developers, analysts, and testers, providing leadership, mentorship, and performance management to ensure a high-performing team.
Conduct regular team meetings, code reviews, and one-on-one sessions to ensure alignment with project goals and technical standards.

Architect, independent expert, Roche May 2018 - June 2019

Design and develop the architecture for Roche’s intranet, specifically focusing on user report pages to ensure seamless access to critical business information.
Collaborate with business stakeholders to understand reporting requirements and translate them into technical specifications and design documents.
Monitor and optimize the performance of the intranet user report pages and data warehouse solutions to ensure fast response times and high availability.
Identify and resolve performance bottlenecks in ETL processes and data retrieval operations.
Design and implement a robust and scalable data warehouse architecture to support Roche’s data storage, retrieval, and analysis needs.
Develop data models and schemas that ensure data integrity, accuracy, and accessibility for business intelligence and reporting purposes.

Oracle ETL, DWH & Business Intelligence Architect - Senior Developer, Bank mHipoteczny January 2016 - October 2017

Design and develop a comprehensive data warehouse architecture to support the bank’s data storage, retrieval, and analysis needs.
Create data models and schemas that ensure data integrity, accuracy, and accessibility, enabling effective business intelligence and reporting.
Develop and implement efficient ETL (Extract, Transform, Load) processes to extract data from various sources, transform it according to business requirements, and load it into the data warehouse.
Ensure ETL processes are robust, scalable, and capable of handling large volumes of data with high reliability and minimal latency.
Lead the end-to-end delivery of data warehouse and business intelligence projects, from initial analysis and design through development, testing, and deployment.
Manage project timelines, resources, and risks to ensure successful delivery of solutions that meet business objectives and adhere to quality standards.

Oracle /ETL/BI Developer, Canal+ May 2014 - March 2016

Design, develop, and maintain IT applications within the AIT framework, ensuring they meet business requirements and industry standards.
Collaborate with cross-functional teams to gather requirements, design solutions, and implement features that enhance application functionality.
Monitor and optimize the performance of IT applications, data warehouse, and ETL processes to ensure fast response times and high availability.
Identify and resolve technical issues, performance bottlenecks, and data quality problems to maintain the reliability and accuracy of BI solutions.
Develop business intelligence solutions, including reports, dashboards, and data visualizations, to provide actionable insights for decision-making.
Work closely with business users to understand their reporting needs and translate them into technical specifications and BI solutions.

AIT Solution Architect / Senior Developer, Orange Telecom November 2013 - August 2014

Data Warehouse development & advising to IT Applications (AIT) Dept.;
Developing of Oracle PL/SQL (IFS – Industrial and Financial System) as well as Informatica PC,

Adviser to President of Supervisory Board - Member of Technical Advisory Board of POLSAT, Television Polsat S. A. April 2000 - February 2013

Advising in technical and business aspects of technology including ETL, IT & telecommunication;
Management of projects: DWH (dedicated ETL procedures), mobile payment, Premium Rate SMS, ERP, Time Scheduling System, Production Scheduling ERP System, infrastructure & data transmission;
Director of Internet Projects
Creating of TV Polsat website (1-st award for the best TV website in 2001 and for the most reliable news portal
in 2002), ERP system for Department of TV Realizations,
Time Scheduling Management emission planning, rights management, reporting for KRRiTV),

Lecturer, Kozminski University WARSAW March 2009 - September 2010

Lecturer at Dept. Of Management – “Multimedia and IT Project Management” – SCRUM.

Member of Board, Karen September 2007 - July 2013

The first in Poland infrastructure of notebook selling company,
Management of Sales Department,
Development of sales, including establishing of new locations

Technical Manager, Consult Sp. z o. o. 2009 - 2010

Lead the planning, execution, and delivery of IT projects, ensuring they align with client requirements and organizational goals.
Coordinate with cross-functional teams to define project scope, allocate resources, and establish project timelines, ensuring successful completion within budget and on schedule.
Manage and mentor a team of IT professionals, including software developers, system administrators, and technical support staff.
Foster a collaborative and productive work environment by providing guidance, conducting performance evaluations, and identifying training and development opportunities for team members.

Technical Manager, ZETO 1994-1998

Develop and implement technical strategies that align with the company’s goals and objectives.
Provide leadership and direction to the technical team, ensuring they are motivated, skilled, and effectively utilized.
Oversee the planning, execution, and delivery of IT projects, ensuring they are completed on time, within scope, and within budget.
Coordinate with project stakeholders to define project requirements, establish milestones, and manage project timelines.
Ensure that all IT projects and services comply with industry standards, regulatory requirements, and best practices.
Implement and oversee quality assurance processes, including code reviews, testing, and documentation.

Assistant at Department of Technical Physics, Information Technology and Applied Mathematics, Technical University of Lodz 1990-2012

Assist in the preparation and delivery of lectures, laboratory sessions, and tutorials for undergraduate and graduate students in subjects related to technical physics, information technology, and applied mathematics.
Provide guidance and support to students during office hours, helping them with coursework, projects, and exam preparation.
Collaborate with faculty members on research projects, contributing to the design, execution, and analysis of experiments and studies.
Assist in the preparation of research papers, reports, and presentations for conferences and publications.
Assist with various administrative tasks, including organizing seminars, workshops, and conferences hosted by the department.
Help in the preparation and grading of exams, assignments, and other assessments, ensuring timely feedback to students.

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