KARELYS MENDOZA

JLL, Frankfurt – Germany                                                                                                                                            07/2023 - Present

Global Valuation Advisory & Digital Consultant

Working on global standards for the valuation business line while cooperating with teams in several countries. Currently focused on the EMEA Region.

Continuously enhance UI/UX components through systematic evaluation and development of precise usage requirements.

Relevant role within the valuation business to develop and implement strategic internal operational tools that drive continuous process improvement and deliver measurable value.

Assisting various development efforts of tools and software components, such as E2E solutions, CRM software, databases, process automation, etc. This includes accompanying the development cycle from requirements to tests and roll-out from a business side.

Supporting the maintenance of the digital ecosystem including internal and external applications. 

Skills: Business Strategy · User Interface Design · End to End Solutions · Valuation · User Experience (UX) · Microsoft Power Automate · Microsoft Power Apps · Continuous Improvement · Digital Strategy · ARGUS Enterprise

Stadtdaten, Frankfurt – Germany                                                                                                                                            09/2022 - Present Co-Founder/Data Analyst

Making key Real Estate data accessible to everyone to help people make better decisions. 

Skills: Self-employment · Pandas (Software) · Data Visualization · Data Analytics · Cloud Computing · SQL · Tableau · Python (Programming Language) · Microsoft Power BI · Business Strategy · Real Estate

JLL, Madrid - Spain                                                                                                                                                             09/2016 – 03/2021  Senior Consultant Capital Markets – Residential Investment

JLL is a Technology company providing Real Estate services. They help their customers to improve their decision-making processes by providing accurate market analysis and asset value estimation. 

Managed multi-million euro Capital Markets transactions throughout Spain, using ML/AI/Big Data tools (such as GEA), and feeding accurately huge databases.

Responsible for Real Estate market analysis and asset value estimation. Also responsible for analyzing the different Business Strategies and choosing the most optimal one for each project.

Build trust with buyer/seller customers. The CRM of these customers is done with CapForce/SalesForce. 

Skills: Valuation · Consultation · Communication · Business Intelligence (BI) · Data Analytics · Microsoft Power BI · Creative Problem Solving · Business Strategy · Real Estate, “ad hoc” ML/AI tool, CapForce/SalesForce

JLL, Madrid - Spain                                                                                                                                                             02/2014 – 09/2016  Commercial Manager of Residential Asset

Responsible for the commercialization of foreclosed residential assets. Portfolio management valued at approximately €83M, comprising more than 400 Real Estate assets.

Participated in the creation of an “ad hoc” web tool for the management of residential Real Estate assets.

Skills: User Experience (UX) · Valuation · User Interface Design · Creative Problem Solving · Real Estate · Microsoft Office · Bienes inmuebles 

Grupo Rentalis, Madrid - Spain                                                                                                                   10/2012 - 05/2014  Founder/Commercial Real Estate Consultant 

Portfolio management of 45 properties - Commercialization of the product, preparation of asset value estimation, preparation of economic and financial feasibility studies. Responsible for the closing of operations, through the elaboration and management of the signing of contracts and delivery of keys – Management of the company.

Skills: Consultation · Rentals · Self-employment · Creative Problem Solving · Real Estate · Microsoft Office

Apartyment Soluciones de Vivienda, Madrid - Spain                                                                                              12/2010 – 08/2012 Commercial Real Estate Consultant

Portfolio management of 135 properties - Commercialization of the product, preparation of asset value estimation, preparation of economic and financial feasibility studies. Responsible for the closing of leasing operations, through the elaboration and management of the signing of leasing contracts and delivery of keys – Property Management – Management of the company.

Skills: Consultation · Rentals · Creative Problem Solving · Negotiation · Real Estate · Microsoft Office

Bovis Lend Lease, Madrid - Spain                                                                                                                                 06/2008 – 06/2009 Construction Manager Junior - Internship 

New Wyeth-Farma Pharmaceutical Building Project - €9.5 million

Wyeth-Farma Office Building Refurbishment Project - €2.6 million

Coordination of subcontractors and sequence of activities to be executed in the "urbanization package" of the new building (Gantt). Budget of €120.000 - Cost and time control by applying the "Earned Value" - Support in the preparation of the "Cost Plan" for the Refurbishment Project of the office building -Planning in MS Project. 

Skills: Project Management · Microsoft Project · Microsoft Office

Baruta City Hall, Caracas – Venezuela                                                                                                                             10/2005 – 02/2008 Specialist in Urban Management

Systematization of the calculation, notification, collection and follow-up of the Special Added Value Tax to manage the financing of urban plans. Collection of ca. €916,000.

Skills: Microsoft Office

TRANSyT – Research Center UPM, Madrid - Spain                                                                                                   05/2005 – 09/2005 Researcher - Internship 

Development of a strategic environmental assessment ("Environmental Screening") based on the "Strategic Environmental Assessment of infrastructure plans of the Community of Castilla y León". ArcGIS (GIS) was used to quantify and qualify direct and indirect impacts. As an additional result, modifications to the infrastructure plans proposed by national entities were recommended.

Skills: ArcGIS Products · Microsoft Office

DATA ANALYST IN POWER BI (06/2025 – 09/2025)

Datacamp – app.datacamp.com (Certification available)

CRASH COURSE ON PYTHON (09/2022 - 12/2022)

Google Coursera

ENTERPRISE DESIGN THINKING PRACTITIONER (05/2022 - 06/2022)

IBM

GOOGLE CLOUD DIGITAL LEADER TRAINING (11/2021 - 04/2022)

Google Coursera

MASTER'S DEGREE IN REAL ESTATE MANAGEMENT (10/2009 – 06/2010)

UNIVERSIDAD EUROPEA DE MADRID (Madrid, Spain)

MASTER'S DEGREE IN PROJECT AND CONCESSION MANAGEMENT AND FINANCING (02 - 12/2008)

UNIVERSIDAD EUROPEA DE MADRID (Madrid, Spain) 

URBAN PLANNER (09/1999 – 11/2005)

UNIVERSIDAD SIMÓN BOLÍVAR (Caracas, Venezuela)

Homologated in Spain with No. 0672263/2009/H02349

Frankfurt am Main (Germany) - +491706128950

Email: karemen@gmail.com