Stelios Chiotis
Senior Data Visualization Specialist at Userlane- Claim this Profile
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English Native or bilingual proficiency
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Greek Professional working proficiency
Topline Score
Bio
David Kellas
I have worked with Stelios for just over 5 years and during that time he has always been dedicated to achieving high calibre results on each project he is involved in. Stel's attention to detail particularly shines through when designing and constructing dashboards for our most complex client projects. Stel utilises his Adobe skills to construct detailed wireframe walkthroughs and translates these into clean, intelligible Tableau dashboards. Stel is always keen and eager to take on new projects, regularly going above and beyond to ensure success. Stel has a critical eye for picking out key details others sometimes miss and recognises the importance of best practices in his approach, this is the difference that makes Stel not just a fantastic data visualisation expert but a great BI Consultant. His strong work ethic is matched by his strong technical and presentation skills. Always a pleasure to work with I highly recommend Stel to any future employer.
Jonathan (Buster) Chaytor
I worked with Stel on several projects while we were in Product Management together at Questback/Tivian, he was greatly valued in our small team both for his data visualisation skills (which was central to the app we were developing) but also for his design skills. He was constantly suggesting improvements and was consulted on all kinds of design queries as his opinion was so valued. Many of his designs made it into several iterations of the software because of their enduring clear and attractive qualities. He is also a Tableau expert user and shared his valuable knowledge freely with colleagues. We dealt with complex data from several sources sometimes requiring cleaning and Stel always put data quality and validation as a top priority, mistakes in the data never got past him. He is also a very diligent, hard worker, we pulled some long shifts when there was pressure from management to deliver and I’m proud of what we created. On top of all his professional qualities he’s also a lovely person and I enjoyed working with him tremendously, I would count myself lucky if I was to work with him again in future.
David Kellas
I have worked with Stelios for just over 5 years and during that time he has always been dedicated to achieving high calibre results on each project he is involved in. Stel's attention to detail particularly shines through when designing and constructing dashboards for our most complex client projects. Stel utilises his Adobe skills to construct detailed wireframe walkthroughs and translates these into clean, intelligible Tableau dashboards. Stel is always keen and eager to take on new projects, regularly going above and beyond to ensure success. Stel has a critical eye for picking out key details others sometimes miss and recognises the importance of best practices in his approach, this is the difference that makes Stel not just a fantastic data visualisation expert but a great BI Consultant. His strong work ethic is matched by his strong technical and presentation skills. Always a pleasure to work with I highly recommend Stel to any future employer.
Jonathan (Buster) Chaytor
I worked with Stel on several projects while we were in Product Management together at Questback/Tivian, he was greatly valued in our small team both for his data visualisation skills (which was central to the app we were developing) but also for his design skills. He was constantly suggesting improvements and was consulted on all kinds of design queries as his opinion was so valued. Many of his designs made it into several iterations of the software because of their enduring clear and attractive qualities. He is also a Tableau expert user and shared his valuable knowledge freely with colleagues. We dealt with complex data from several sources sometimes requiring cleaning and Stel always put data quality and validation as a top priority, mistakes in the data never got past him. He is also a very diligent, hard worker, we pulled some long shifts when there was pressure from management to deliver and I’m proud of what we created. On top of all his professional qualities he’s also a lovely person and I enjoyed working with him tremendously, I would count myself lucky if I was to work with him again in future.
David Kellas
I have worked with Stelios for just over 5 years and during that time he has always been dedicated to achieving high calibre results on each project he is involved in. Stel's attention to detail particularly shines through when designing and constructing dashboards for our most complex client projects. Stel utilises his Adobe skills to construct detailed wireframe walkthroughs and translates these into clean, intelligible Tableau dashboards. Stel is always keen and eager to take on new projects, regularly going above and beyond to ensure success. Stel has a critical eye for picking out key details others sometimes miss and recognises the importance of best practices in his approach, this is the difference that makes Stel not just a fantastic data visualisation expert but a great BI Consultant. His strong work ethic is matched by his strong technical and presentation skills. Always a pleasure to work with I highly recommend Stel to any future employer.
Jonathan (Buster) Chaytor
I worked with Stel on several projects while we were in Product Management together at Questback/Tivian, he was greatly valued in our small team both for his data visualisation skills (which was central to the app we were developing) but also for his design skills. He was constantly suggesting improvements and was consulted on all kinds of design queries as his opinion was so valued. Many of his designs made it into several iterations of the software because of their enduring clear and attractive qualities. He is also a Tableau expert user and shared his valuable knowledge freely with colleagues. We dealt with complex data from several sources sometimes requiring cleaning and Stel always put data quality and validation as a top priority, mistakes in the data never got past him. He is also a very diligent, hard worker, we pulled some long shifts when there was pressure from management to deliver and I’m proud of what we created. On top of all his professional qualities he’s also a lovely person and I enjoyed working with him tremendously, I would count myself lucky if I was to work with him again in future.
David Kellas
I have worked with Stelios for just over 5 years and during that time he has always been dedicated to achieving high calibre results on each project he is involved in. Stel's attention to detail particularly shines through when designing and constructing dashboards for our most complex client projects. Stel utilises his Adobe skills to construct detailed wireframe walkthroughs and translates these into clean, intelligible Tableau dashboards. Stel is always keen and eager to take on new projects, regularly going above and beyond to ensure success. Stel has a critical eye for picking out key details others sometimes miss and recognises the importance of best practices in his approach, this is the difference that makes Stel not just a fantastic data visualisation expert but a great BI Consultant. His strong work ethic is matched by his strong technical and presentation skills. Always a pleasure to work with I highly recommend Stel to any future employer.
Jonathan (Buster) Chaytor
I worked with Stel on several projects while we were in Product Management together at Questback/Tivian, he was greatly valued in our small team both for his data visualisation skills (which was central to the app we were developing) but also for his design skills. He was constantly suggesting improvements and was consulted on all kinds of design queries as his opinion was so valued. Many of his designs made it into several iterations of the software because of their enduring clear and attractive qualities. He is also a Tableau expert user and shared his valuable knowledge freely with colleagues. We dealt with complex data from several sources sometimes requiring cleaning and Stel always put data quality and validation as a top priority, mistakes in the data never got past him. He is also a very diligent, hard worker, we pulled some long shifts when there was pressure from management to deliver and I’m proud of what we created. On top of all his professional qualities he’s also a lovely person and I enjoyed working with him tremendously, I would count myself lucky if I was to work with him again in future.
Credentials
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Tableau Desktop 10 Qualified Associate
Tableau SoftwareDec, 2016- Nov, 2024
Experience
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Userlane
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Germany
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Technology, Information and Internet
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1 - 100 Employee
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Senior Data Visualization Specialist
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Aug 2022 - Present
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Tivian
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United States
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Software Development
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1 - 100 Employee
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Data Visualization Specialist
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Apr 2021 - Aug 2022
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Questback
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Norway
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IT Services and IT Consulting
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1 - 100 Employee
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Tableau Engineer
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Apr 2017 - Apr 2022
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Ve Global
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United Kingdom
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Advertising Services
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1 - 100 Employee
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Business Data Analyst
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Oct 2014 - Apr 2017
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Rexel UK Ltd
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United Kingdom
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Wholesale
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700 & Above Employee
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Data Content Manager | Data Analyst
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Sep 2011 - Sep 2014
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Splashdirect
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United Kingdom
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Manufacturing
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1 - 100 Employee
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Web Content Manager
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Jan 2009 - Mar 2010
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Education
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Middlesex University
BSc (Hons), Computing Science (Graphics & Games) -
Mill Hill County High
High School