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Location

Poland

Rate

$37  / per hour

Years of experience

12+

About

As a Business Intelligence developer and data analyst with over 12 years of experience, I have honed my skills in supporting senior management decisions within the financial and IT sectors. My expertise includes writing advanced T-SQL queries, creating complex stored procedures for financial data analytics, and developing ETL processes using SSIS and Talend. Additionally, I excel in creating ad-hoc and subscription-based reports using SSRS and Power BI, managing and developing databases on MS SQL Server, and developing data warehouses and data vault models. With a strong foundation in mathematics and statistics, I have built and implemented credit scoring models and designed business systems, such as electronic credit applications. Throughout my career, I have held various roles, including Senior Data Warehouse Engineer at RCI Banque, Business Intelligence Developer at Liberty Mutual Insurance, and Fullstack SQL Developer at PwC IT Services. I have successfully developed data warehouses, managed databases, and created ETL processes across different platforms, including AWS and Azure DevOps. My greatest accomplishments include restoring SQL Server functionality, migrating data sources, and creating key performance indicator reports from scratch. With advanced certifications in SQL Server, Power BI, and AWS, I am well-equipped to tackle complex data challenges and provide valuable insights to drive business decisions.

Tech Stack

Database, AWS and Cloud, Azure DevOps, CI/CD, Database Management System (DBMS), GIS, Kafka, MS SQL, Power BI, SQL Server, Ssis, SSRS, T-SQL

Experience

  • Creating and managing data warehouses using T-SQL on MS SQL Server, AWS, and Exasol databases. Developing advanced ETL processes with tools such as SSIS, Talend Open Studio, and Talend Cloud..
  • Crafting complex T-SQL queries and stored procedures to support financial data analytics and other business needs.
  • Generating ad-hoc and subscription-based reports using SSRS and Power BI, along with KPI reports and other analytical tools.
  • Overseeing the development, performance tuning, and administration of databases on MS SQL Server.
  • Working closely with stakeholders to understand their needs and convert them into effective technical solutions.
  • Designing and documenting various business systems, including electronic credit applications and credit scoring models.
  • Managing and developing CRM applications, supporting user requests across different markets, and ensuring data integrity and accessibility.

Employment history

Senior Data Warehouse Engineer, RCI Banque SA June 2022 - Present
  • Developing data warehouse and the underlying data vault model (Data Vault 2.0) using SQL in Exasol database.
  • Creating ETL processes with Talend Cloud, Apache Kafka, and Confluent Kafka.
  • Utilizing tools such as DBeaver, GitHub, and Gliffy diagrams in a Confluence, Jira, and Scrum environment.
Business Intelligence Developer, Liberty Mutual Insurance June 2021 - June 2022
  • Gathering business requirements and translating them into technical solutions.
  • Developing data warehouse using T-SQL on MS SQL Server and AWS.
  • Creating ETL processes using SSIS with Visual Studio, CI/CD pipelines, and Azure DevOps.
Fullstack SQL Developer, PwC IT Services November 2020 - May 2021
  • Creating ETL processes using Talend Open Studio for data integration and SSIS with Visual Studio.
  • Developing and performance tuning of data warehouse using T-SQL on MS SQL Server.
  • Managing tools like CyberArk, Sourcetree, GitLab, Jenkins, and Kubernetes in a Jira environment.
System Administrator – SQL Developer, Elavon September 2018 - November 2020
  • Gathering business requirements and translating them into technical solutions.
  • Managing and developing databases on MS SQL Server as a database administrator.
  • Creating reports using SSRS with Visual Studio and Power BI.
usiness Intelligence Developer -Database Architect / Programmer, Beqom September 2017 - August 2018
  • Gathering business requirements and translating them into technical solutions.
  • Managing databases and creating reports on MS SQL Server using T-SQL and SSRS.
  • Supporting requests from top-tier customers and providing solutions.
Data Analyst / Report Developer, Pitney February 2017 - September 2017
  • Gathering business requirements and translating them into technical solutions.
  • Creating reports using Power BI and SSRS with Visual Studio on MS SQL Server.
  • Working with Salesforce and SAP S/4HANA databases.
Business Intelligence Specialist, Profi Credit September 2016 - February 2017
  • Creating analytical reports and ad-hoc analysis in MS Excel using T-SQL and MySQL.
  • Preparing budget plans for sales and marketing departments.
  • Using tools like Talend Open Studio for MDM and Toad for MySQL.
Credit Risk Team Leader / Senior Risk Specialist, Cooperative Savings and Credit Union August 2012 - August 2016
  • Gathering business requirements and translating them into technical solutions.
  • Building, validating, and monitoring credit scoring/rating (PD) models using STATISTICA.
  • Designing, testing, and documenting an electronic credit application.
  • Developing reports in MS Excel using VBA and T-SQL on MS SQL Server.
Statistics Developer, Kamsoft January 2012 - April 2012
  • Creating sales reports in the area of pharmacy using Oracle databases.

Education history

Silesian University of Technology in Gliwice 2010 - 2012 Computer Science
Faculty of Applied Mathematics
Silesian University of Technology in Gliwice Master of Science in Mathematics / specialisation: Statistics
Faculty of Applied Mathematics
Tom Potanski

“80+ clients have experienced exceptional results from our IT recruitment and software development services.”

Tom Potanski

Tom Potanski Founding Partner, DevsData

DevsData LLC Reviews 5.0 Rated 5.0 stars
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"The agency led the hiring with a dedicated recruitment team. In the end, the client hired two senior technicians, one from Spain and another from Portugal, greatly enriching its engineering team."
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Sebastian Abdy Saboune
Cofounder & CPO
Twist Solutions, Ltd.
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5.0
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"We consider the developers they recommended exceptionally strong from a technical perspective. I can recommend the services of DevsData to all tech companies in need of exceptional tech talent."
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Garik Suess
Cofounder & CTO
Qualifyze GmbH
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5.0
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"It was a pleasure to work with DevsData. They excelled at commitment, communication skills, and time and team management. They were extremely organized and efficient, and they tackled every part of the project (several projects) with the utmost care."
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Steven Haley
Managing Director
Kroll, Inc.
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5.0
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"DevsData reached out to us, as we've been looking to grow our engineering team in Europe and Poland. Communicating efficiently and professionally, DevsData made a strong impression with their understanding of the recruitment challenges we were facing."
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Karim Butt
Cofounder & CTO
GlossGenius, Inc.
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5.0
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"I really appreciate their ability to adapt to our preferred ways of working, agility and successful delivery."
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Tom McGovern
Managing Director
Idealab, Inc.
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5.0
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"They have really proved their worth and have shown me that my company’s money is really well spent."
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Matthew Wiklo
CEO
Epinote
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5.0
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"I've been working on several IT projects with DevsData for more than five years. There were many software projects they completed for us."
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Christopher Ting
Senior IT Manager
Verus Analytics LLC
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5.0
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"From beginning to end, the cooperation was smooth and contact with DevsData representatives was very easy."
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Patrick Lobocki
CEO
Roesier, Inc.
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5.0
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"From beginning to end, my experience with DevsData was only positive."
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Daniel Goebel
CEO
CoCoHub, Ltd.
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5.0
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"Quality control is rare in this line of business, I think this is the secret sauce of their exceptional quality."
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Paul Polewicz
CEO
Reef Technologies
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5.0
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"This rapid pace and immaculate organization are what stood out to me most about DevsData."
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Joanna Szymanski
Owner & CEO
Xino Sports LLC
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5.0
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"We at Flowr Agency are particularly pleased with the outcomes, notably the superior code quality, speed, and communication. It confidently endorses the agency's services to other marketing firms."
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Loic Moncany
Cofounder
Flowr Agency
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5.0
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"We felt good about our collaboration. They were good people to work with, full of energy, creative, and proactive."
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Christian Cieslak
CEO
Remarkable Ones
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5.0
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"We also recommended DevsData to my business connections as they did a truly fantastic job."
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Matthew Lenicki
CEO
WebCrafters, Inc.
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5.0
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"For DevsData to find four amazing developers so fast - that cannot be just luck."
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Adam Zaczek
Founder
1Security
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5.0
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"Our cooperation has been very efficient, and I love it."
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Adam Janczewski
Founder & CEO
Jutro Medical
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5.0
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"Tom and his team showed great dedication to us as client and allowed wellbee to launch an Alpha stage of our online therapy product in under 1 month from absolute scratch. I need to congratulate them on the very good UX and UI design and good communication skills of the whole team."
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Paul Chrzan
Cofounder and CEO
Wellbee
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5.0
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"Out of all the vendors we work with, DevsData clearly stands out. The quality of developers they deliver is beyond what we've received from any other vendor, and they've been able to send profile recommendations very quickly. I'm happy to be their reference for other companies from Israel and talk about their recruitment abilities and what they delivered for us - we eventually signed over 19 engineers from DevsData. I'm extremely satisfied with this recruitment process."
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Ran Eyal
Program Manager
ZIM
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I agree and accept that DevsData LLC will improve the user experience by collecting, analyzing, and cataloging information about the internet addresses my devices have connected to, as well as details about my devices’ specifications and software versions, and by making automated decisions (not involving sensitive data). This agreement remains in effect for the legally binding period or until either party withdraws. Withdrawal will result in the removal of the user’s data. For further details, please see our privacy policy.

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“I interviewed about a dozen different firms. DevsData LLC is truly exceptional – their backend developers are some of the best I’ve ever worked with. I’ve worked with a lot of very well-qualified developers, locally in San Francisco, and remotely, so that is not a compliment I offer lightly. I appreciate their depth of knowledge and their ability to get things done quickly.”

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Ex-Tesla Engineer,

Mentor at YCombinator

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Tailored recruitment process, trusted market expertise.

“DevsData reached out to us, as we’ve been looking to grow our engineering team in Europe and Poland. Communicating efficiently and professionally, DevsData made a strong impression with their understanding of the recruitment challenges we were facing. They designed a tailored recruitment process for our needs. I was impressed with the technical depth of their approach.”

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Karim Butt

Co-Founder & CTO at GlossGenius, Inc.

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Outstanding vendor, 21 engineers hired.

“Out of all the vendors we work with, DevsData clearly stands out. The quality of developers they deliver is beyond what we've received from any other vendor, and they've been able to send profile recommendations very quickly. I'm happy to be their reference for other companies from Israel and talk about their recruitment abilities and what they delivered for us.”

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Ran Eyal

Senior Manager at

ZIM Integrated

Shipping Services Ltd.

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Proactive partner, exceptional results.

“DevsData demonstrated a strong degree of proactivity, taking time to thoroughly understand the problem and business perspective, and continuously suggesting performance and usability enhancements. Their app exceeded my expectations. I've worked with DevsData on numerous projects over the last 3 years and I'm very happy. Being both responsive and honest in communication.”

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