Michał Kaliński, Developer in Warsaw, Poland
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Michał Kaliński

Verified Expert  in Engineering

Bio

Michał is a seasoned software developer passionate about data, from analysis and transformation to presentation. He has a professional career of 15+ years in the IT field and more than five in BI development with Tableau, SQL, Oracle, and Excel. Michał enjoys working with Tableau, deep-dive into the client's needs, presenting and delivering stunning dashboards that not only showcase the data but that walk users through creating a unified experience towards conclusions.

Portfolio

Radiant Law Limited
Tableau, R, Dashboards, Data Visualization, Data Engineering, MySQL...
Billennium
Tableau, SQL, HTML, CSS, Python, Oracle, Agile, Scrum, Snowflake...
ITDS
Tableau, Agile, Scrum, SQL, Jira, Data Visualization, Dashboards...

Experience

  • SQL - 15 years
  • Excel VBA - 10 years
  • SQL Server DBA - 8 years
  • Agile Project Management - 8 years
  • Dashboards - 6 years
  • Data Visualization - 6 years
  • Tableau Desktop Pro - 6 years
  • Agile - 5 years

Availability

Part-time

Preferred Environment

Tableau Desktop Pro, SQL

The most amazing...

...thing I've built is a predictive app. It is used by the client as the base to year-to-year budget discussions to calculate the hourly engineering rate.

Work Experience

Data Engineer with Tableau Expertise

2022 - PRESENT
Radiant Law Limited
  • Cooperated in defining full matter workflow to generate key data for reporting purposes in MySQL database. Developed a set of procedures to create a data transformation/aggregation pipeline. Optimization and maintenance.
  • Developed and maintained Tableau dashboards to report law matters at various dimensions, levels, and calculations.
  • Cooperated closely with the CEO to define the BI solution path of reporting and maintaining. Redefined the previous R code to redirect to database scheduled automated workflows.
Technologies: Tableau, R, Dashboards, Data Visualization, Data Engineering, MySQL, Business Intelligence (BI), Tableau Server, Data Analysis, Data Analytics, Dashboard Development, Data Modeling, Dashboard Design, Data Reporting, Relational Databases, Data Integration, Database Architecture, ETL, Data Structures, Data Warehousing, Microsoft Excel, JSON, T-SQL (Transact-SQL), CSV, Business Analysis, Windows, Database Administration (DBA), Databases, Reporting, Reports, Automation, Microsoft Word

Senior Tableau Architect

2018 - PRESENT
Billennium
  • Played a key role in cooperating with Billennium's customers in the BI projects.
  • Designed Tableau, data, big data, software, and business solutions.
  • Led and coordinated the software development team.
  • Created PoCs and reports for several clients, answering their needs.
  • Collaborated on designing and delivering a sales dashboard for a monitoring system.
  • Developed a set of dashboards for a TV company with Tableau and Snowflake cooperation.
Technologies: Tableau, SQL, HTML, CSS, Python, Oracle, Agile, Scrum, Snowflake, Business Intelligence (BI), Tableau Server, Google Sheets, APIs, Data Analysis, Data Analytics, Dashboard Development, PostgreSQL, Data Modeling, Redshift, Data Engineering, Dashboard Design, Amazon Web Services (AWS), Microsoft Power BI, Data Reporting, Data Science, Relational Databases, Data Integration, Database Architecture, ETL, Data Structures, Data Warehousing, Microsoft SQL Server, Microsoft Excel, JSON, T-SQL (Transact-SQL), Google Data Studio, CSV, Business Analysis, Windows, Database Administration (DBA), Databases, Data Warehouse Design, Reporting, Reports, Visual Basic for Applications (VBA), Microsoft Word

BI Consultant

2020 - 2022
ITDS
  • Collaborated with the client, UBS, providing consultancy expertise in proofs-of-concept (POC) development, report optimization, and BI systems design.
  • Added new clients and new Tableau solutions to the company's portfolio.
  • Developed competencies in big data solutions and banking operations.
  • Designed Tableau, business solutions, and PoCs for several clients.
  • Optimized and implemented new solutions on the clients' BI software, following best practices.
  • Collaborated on the design and delivery of model relations dashboards.
  • Engaged with several professionals while working on the banking report solution.
  • Helped recruit new team members, ensuring they met the required technical knowledge.
Technologies: Tableau, Agile, Scrum, SQL, Jira, Data Visualization, Dashboards, Business Intelligence (BI), Tableau Server, Data Analysis, Data Analytics, Dashboard Development, Data Modeling, Data Engineering, Dashboard Design, Amazon Web Services (AWS), Data Reporting, Data Science, Relational Databases, Data Integration, Database Architecture, ETL, Data Structures, Data Warehousing, Microsoft SQL Server, Microsoft Excel, T-SQL (Transact-SQL), Google Data Studio, CSV, Business Analysis, Microsoft Power BI, Windows, Database Administration (DBA), Databases, Data Warehouse Design, Reporting, Reports, Automation, Visual Basic for Applications (VBA), Microsoft Word

Co-founder and IT Consultant

2017 - 2019
KRK Partnerzy Digital Solutions
  • Co-founded a technological and business organization focused on IT and BI services.
  • Acquired experience in day-to-day management and supervision.
  • Managed clients, team-building exercises, and software, as remote specialists.
  • Conceptualized and built a digital project to predict work efficiency granted by the EU founding.
  • Supervised web page development as part of my role.
Technologies: Agile, Scrum, Waterfall Development, Tableau, .NET, SQL, PHP, JavaScript, Data Integration, Database Architecture, ETL, Data Structures, Microsoft SQL Server, Microsoft Excel, Windows, Databases, Reports, Microsoft Word

Senior Data Engineer

2017 - 2018
Baker Hughes, a GE Company
  • Owned the BI environment, cloud and stationery, the data warehouse (SQL Server, Greenplum), and Tableau reports.
  • Supported 20 projects with day-to-day and ad hoc reporting needs.
  • Managed the complete software solution in close cooperation with internal customers as the consulting expert on BI trends.
  • Followed Agile and Scrum methodologies throughout project management.
Technologies: Tableau, SQL, HTML, CSS, Oracle, Greenplum, SQL Server DBA, Business Intelligence (BI), Tableau Server, APIs, Data Analysis, Data Analytics, Dashboard Development, Data Modeling, Data Engineering, Data Reporting, Relational Databases, Data Integration, Data Structures, Microsoft SQL Server, Microsoft Excel, T-SQL (Transact-SQL), Microsoft Data Transformation Services (now SSIS), CSV, Windows, Database Administration (DBA), Databases, Reporting, Reports, Automation, Microsoft Word

Lead Software Engineer

2015 - 2017
GE Company Polska (EDC)
  • Developed, updated, and managed SQL servers and the data flow DB integration process.
  • Used a SQL EDC DB to create business quality and operations metrics.
  • Developed, under request, C#, VBA, Access, and batch files business tools to help integrate the whole process.
  • Implemented Tableau for reports and data preparation.
  • Doubled the operational reports portfolio by adding reports based on demand and capacity.
  • Created and standardized the work in SQL server and Tableau environment, increasing the number of frequent users by more than 40%.
  • Prepared SQL queries of ad-hoc and regular business data reports.
  • Participated in the business operations meetings to update business strategy upon metrics and results.
  • Provided business-level user support for operational metrics data consistency, SQL, and Tableau.
  • Acted as a coach in Excel VBA EDC at the center of skills of excellence.
Technologies: Tableau, SQL, HTML, CSS, Oracle, Greenplum, SQL Server DBA, Business Intelligence (BI), Tableau Server, Data Engineering, Relational Databases, Data Integration, Data Structures, Microsoft SQL Server, Microsoft Excel, T-SQL (Transact-SQL), Microsoft Data Transformation Services (now SSIS), CSV, Windows, Databases, Automation, Visual Basic for Applications (VBA), Microsoft Word

Lecturer

2013 - 2015
Kotarbinski University of Information Technology and Management in Olsztyn
  • Planned, created, and delivered lessons for classes of 11 to 20 students in the fields of mechatronics and information.
  • Taught students across Excel, VBA, script languages, MATLAB, design, and coding principles.
  • Collaborated with other professionals in defining best practices to help students deliver the best results.
Technologies: MATLAB, Excel VBA, Microsoft Excel, Windows, Automation, Microsoft Word

Lead Software Engineer

2008 - 2015
GE Company Polska (EDC)
  • Developed, maintained, and implemented business and engineering applications while participating in other programming tasks for the oil and gas industry.
  • Improved my competencies and skills as a developer and SQL database administrator.
  • Engaged with multiple stakeholders, including business users, IT developers, high managers, CEOs, global organizations, sales, metrics department, local office community, engineering, operations, quality, project management, and HR.
  • Worked in application development and bug fixing.
  • Participated in all project planning phases, prepared programming documentation, designed and performed application testing, and owned SQL database management tasks.
Technologies: C#, Visual Studio, SQL, Perforce, Windows Presentation Foundation (WPF), Oracle, Excel VBA, Agile, Scrum, Relational Databases, Data Integration, Data Structures, Microsoft SQL Server, Microsoft Excel, Windows, Databases, Automation, Visual Basic for Applications (VBA), Microsoft Word

Prediction Dashboard for an Engineering Site

Built a prediction dashboard for an engineering company's site with over 1,000 employees. It provides automatical calculations of unified hourly rate based on a customized model, including actual demand, upcoming projects, and predicted costs versus capacity and working culture.

Pharma Accessibility and Validation Dashboards

Pharma dashboards depict accessing medicines along countries, regions, and markets based on various kips being calculated and presented to concerned stakeholders. Validation of rules and data consistency is based on external and internal systems and repositories.

TV Dashboards

Built a set of TV dashboards to analyze programs and products viewership and purchases of on-demand TV. The algorithms developed group clients based on their preferences, potential growth rate, and income and are presented on radar charts.
2002 - 2007

Master's Degree in Automatics and Robotics

Gdańsk University of Technology - Gdańsk, Poland

NOVEMBER 2017 - PRESENT

Six Sigma: Green Belt

Lean Six Sigma

NOVEMBER 2016 - PRESENT

AgilePM Foundation

APMG International

Tools

Tableau Desktop Pro, Tableau, Microsoft Power BI, Microsoft Excel, Google Sheets, Microsoft Word, MATLAB, Visual Studio, Perforce, Jira

Languages

SQL, T-SQL (Transact-SQL), C#, Excel VBA, Visual Basic for Applications (VBA), C++, HTML, CSS, PHP, JavaScript, Python, R, Snowflake

Paradigms

Business Intelligence (BI), ETL, Agile, Automation, Agile Project Management, Six Sigma, Scrum, Waterfall Development

Storage

Relational Databases, Data Integration, Databases, MySQL, Database Architecture, Microsoft SQL Server, JSON, Database Administration (DBA), Greenplum, SQL Server DBA, PostgreSQL, Redshift

Platforms

Windows, Oracle, Amazon Web Services (AWS)

Frameworks

Windows Presentation Foundation (WPF), .NET

Other

Data Visualization, Dashboards, Data Engineering, Tableau Server, Data Analysis, Data Analytics, Dashboard Development, Dashboard Design, Data Reporting, Data Structures, CSV, Reports, Optimization, APIs, Data Modeling, Data Science, Data Warehousing, Business Analysis, Data Warehouse Design, Reporting, Computer Science, Robotics, Programming, Algorithms, PLC, Lean Project Management, Microsoft Data Transformation Services (now SSIS), Google Data Studio

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