Nick V.
100% Job Success
Top Rated Plus

Analytics Wizard for Cloud-Based | Ph.D. Data Engineer & Analyst

What sets me apart? I tailor solutions to your unique needs and business goals - I never use the "one-size-fits-all" approach. Communication is key; I’ve mastered conveying complex concepts to non-technical stakeholders. Plus, expect fast, efficient delivery — I’ve never missed a project deadline. With project management skills, I ensure efficient planning and execution. My industry knowledge and entrepreneurial experience mean I understand both your data and business challenges. ⭐ You can count on professionalism, responsiveness, and a client-centric approach. Let's transform your data into insights together! 📊 Ph.D. in Mathematical Methods | 13+ Years of Data Excellence 🏆 Top-Rated Plus on Upwork with 1,500+ quality hours delivered. 🌟 My team of experts and I excel at data science and analytics, helping businesses optimize their data for improved insights and decision-making. 📞 Let's connect for a free 15-minute consultation on Upwork! ⭐⭐⭐⭐⭐ ❝ Valiotti Analytics has set up dashboards for business intelligence and monitoring, and they advised on the integration and processing of data from heterogeneous sources. We especially appreciate their robust approach to eliciting our requirements and iterating on these. At the same time, they understood our need to deploy intermediate solutions quickly. They always had an ace up their sleeve when it came to tackling any snags, such as handling inconsistencies and load time Optimization.❞ 🗣 Timo Mennle - Economics Program Manager - Worldcoin 🗣 🚀 Top Achievements: • 35+ successfully completed projects • Trusted by,,, and more • Partners with GCP, AWS, Fivetran, dbt, Tableau, and Metabase • Built a reporting system for our EdTech partner from scratch using a proprietary Reporting System Framework 🛠 Expertise: • Data Strategy • Data Warehousing & Engineering • Data Dashboards & Visualizations • Data Analytics & Automation • Machine Learning & Predictive Models 🎯 Trusted by Cloud-Based SMEs, Fortune 500 Companies, and Digital Enterprises 🛠 Data Stacks: • Server technologies: Python, Apache Airflow, Jupyter Notebook, dbt, AWS, Google Cloud, Snowflake. • Databases: ClickHouse, Google Big Query, Amazon Redshift, PostgreSQL, MySQL, Vertica, Snowflake. • BI tools: Looker, Tableau, Redash, Superset, Metabase, Power BI, Plotly, Dash 🟢 Additional Skills: • Modern Data Stack Implementation • Analytics Audit & Consulting • DBA & DevOps • Data Architecture • Advanced Analytics (ML, predictive models) 🤝 Let’s have a free 15-minute call! You describe your task, I suggest the solution and outline the next steps, timeline, and cost estimation. Or let’s have a chat! Just press the ‘Send Message’ button in the top right-hand corner. Looking forward to cooperation!

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  • Tableau
  • Looker Studio
  • ClickHouse
  • Data Ingestion
  • Data Transformation
  • Google Sheets
  • Data Analytics
  • Sales Analytics
  • Report

Get started working with Nick quickly with these predefined projects.

Get started working with Nick quickly with these predefined projects.

You will get a Custom Dashboard Visualization

From $4,500
14 days delivery

You will get a Complete Data Infrastructure Setup

From $25,000
70 days delivery

You will get a Reporting System Framework

From $30,000
70 days delivery

You will get an End-to-End Analytics Solution

From $45,000
70 days delivery


Endorsements from past clients

"Since about since months, Nikolay and his team are doing tremendous work for us. They're sharp, professional, efficient, and excellent communicators. They managed to bring clarity in a very complex and chaotic environment, with a patient, yet ambitious pace. Nikolay is also very present when needed, but can rely on his strong team. I definetly recommend ! "

Léo D. | Co-fondateur
MentorShow Aug 2022


"We've worked directly with Nikolay on multiple long and short-term projects. The results were outstanding! As a global SaaS company based in Europe with +800 employees, Nikolay and his team delivered fantastic results in a professional manner, they posses technical skills that are extremely hard to find in the tech market today. He helped us build our global data platform to empower customer-facing analytics products that excelled. Documentations, code-quality and cross-communications were very professional. I'm looking to my next project with Nikolay! "

Eyas K. | Product Manager
Aircall Aug 2022


"Nikolay and his team are one-of-a-kind specialists providing sufficient knowledge about the most suitable tools and project timelines. The way the project is being handled is commendable. I have been enjoying working with them for several months and our collaboration is still in process."

Cyril V. | Head of Business Intelligence
Betpawa Aug 2022


"Nikolay and his team have worked with our company for several months. I could not be happier with the quality of work, level of commitment, understanding of our needs, and amazing custom approach he developed. We arewent from a situation where we had many unresolved analytical questions to a modern analytical data stack we can now both work with and benefit from. Needless to say, Nikolay is someone I highly recommend to solve your data analytics problems and I personally look forward to working together again in the future."

Danil V. | Operations Manager
Righsoft Labs Aug 2022


"Nikolay performed outstanding work on our project, the workflow was great, especially communication and project management. The result was delivered of a very high quality and within the agreed schedule. Moreover, I would like to mention that our requests for alterations were immediately discussed and implemented. I was happy to collaborate with Nikolay and Valiotti Analytics team and will certainly plan cooperative projects in the future."

Timo M. | Program Manager Economics
WorldCoin Aug 2022