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Martin D.

@MartinDudumi

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5,0
65
6,3
6,3
97%

Senior Data Expert ( Data and Programming )

$25 USD / Heure
Drapeau de
Albania (12:24 PM)
Inscrit depuis le juillet 1, 2019
$25 USD / Heure
Results-driven Data Expert with 15 years of distinguished experience in: - Mastering advanced MS Excel, MS Access, and SQL. - Expert in leveraging complex Excel functionalities, including intricate formulas, pivot tables, and VBA macros, to deliver actionable insights and streamline reporting processes. - Proven ability to create dynamic dashboards and automate repetitive tasks, significantly enhancing operational efficiency. - Highly skilled in designing and managing sophisticated databases with MS Access, and optimizing SQL queries for robust data management and performance. - Demonstrated success in transforming large datasets into strategic insights and implementing innovative data solutions. - Eager to bring unparalleled analytical skills and advanced technical expertise to drive transformative data-driven strategies in a forward-thinking organization. Furthermore:  Developed and maintained advanced financial models using complex Excel formulas, including VLOOKUP, INDEX/MATCH, and nested IF statements.  Automated data processing and reporting tasks with VBA macros, resulting in a 50% reduction in manual effort and a significant decrease in errors.  Designed interactive dashboards with pivot tables and charts to track key performance indicators (KPIs) and provide actionable insights to senior management.  Conducted in-depth data analysis and created detailed reports, improving data accuracy and supporting strategic decision-making.  Created and optimized Excel spreadsheets for various data analysis projects, including sales forecasting and budget tracking.  Utilized pivot tables and slicers to facilitate dynamic data exploration and reporting for cross-functional teams.  Developed comprehensive data validation and error-checking protocols to ensure the integrity and reliability of data.  Provided training and support to team members on advanced Excel techniques and best practices.  Designed and implemented an MS Access database to manage production and sales interactions, including custom forms, queries, and reporting features.  Integrated SQL Server data with the Access database to provide a unified view of production data, improving production relationship management and sales tracking.
Vérifications
Dans les temps
97 %
Dans le budget
97 %
Taux d'acceptation
94 %
Taux de réembauche
8 %

Portfolio

Portfolio

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Modifications enregistrées
5.0 · 65 Reviews
Commentaires
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I gave Martin a complex excel task that required a lot of specific data and calculations from other areas within the excel sheet and he completed this on the spot and even made changes when I requested them. Amazing work.
Morgan O.
@Morganorance
Drapeau de
werris creek, Australia
il y a 7 mois
Partager
M
good to work with. communicator!
Toni G.
@MtArarat
Drapeau de
Oklahoma CIty, United States
il y a 7 mois
Partager
Avatar de l'utilisateur
Fantastic working with Martin, he was patient and took the time to understand our needs and delivered great work, and was always there to help us troubleshoot.