First things first: Why do you need a senior data consultant in your company?
Using data to find answers to your questions means figuring out what to ask in the first place. That can be quite tricky! Here is one of most important skill can be provided. Critical thinking is the role of an analyst to uncover and synthesize connections that are not always so clear. While there are a number of tips you can try to help improve your critical thinking skills, this ability is innate to a real Data analytics consultant.

Second thing: What could experience bring to the project once it's lunched?
A project may be well conceived and adequately financed and the resources may be specialists, but if the effort s of all the participants are not skillfully coordinated and managed, the project may overrun the budget, fail to meet the schedule, or fall short in functional and technical quality. The Project manager has no formal authority, though they are held responsible for the overall success of the project. They are responsible for managing the interaction between all stakeholder groups. That’s why Leadership, Communication, Personal organization, team and risk management are essential to our profession.

Last and not least question to answer is: what tool do you need to visualize your insights?
Before introducing the tool, let's have a quick insight on what is the Data visualization. Actually, it's is the presentation of data in a pictorial or graphical format. It enables decision makers to see analytics presented visually, so they can grasp difficult concepts or identify new patterns. So, to get the pieces together, we need a tool that make the best data visualization operated by a talented consultant, and it couldn't be anything else than a Qlik's product. QlikView-Qlik Sense, are the best In-memory tools to explore data and deliver key insights letting the decision-makers a lead to drive the company to a continuous progress.