Doncho Panayotov - AI Engineer / Data Scientist

Q: Where is Doncho based?

Doncho is based in Tarmstedt, Germany .

Q: What languages does Doncho speak?

Doncho speaks the following languages: Bulgarian (Native), German (Advanced), English (Advanced), Spanish (Advanced) .

Q: How many years of experience does Doncho have?

Doncho has at least 6 years of experience. During this time, Doncho has worked in at least 3 different roles and for 2 different companies . The average length of individual experience is 2 years and 10 months . Note that Doncho may not have shared all experience and actually has more experience.

Q: What is Doncho's latest experience?

Doncho's most recent position is AI Engineer / Data Scientist at Freelance .

Q: What companies has Doncho worked for in recent years?

In recent years, Doncho has worked for Freelance and o2 Telefónica .

Q: Which industries is Doncho most experienced in?

Doncho is most experienced in industries like Telecommunication , Energy , and Healthcare . Doncho also has some experience in Information Technology and Retail .

Q: Which business areas is Doncho most experienced in?

Doncho is most experienced in business areas like Business Intelligence and Information Technology .

Q: Which industries has Doncho worked in recently?

Doncho has recently worked in industries like Telecommunication , Energy , and Healthcare .

Q: Which business areas has Doncho worked in recently?

Doncho has recently worked in business areas like Business Intelligence and Information Technology .

Recommended expert

Tarmstedt, Germany

Experience

Sep 2023 - Present

2 years 7 months

Germany

AI Engineer / Data Scientist

Freelance

Designed and implemented scalable data governance frameworks for healthcare, energy, and telecom enterprises.
Architected data models in Azure Synapse & Power BI, enabling high-performance reporting and scalability.
Led migration of legacy BI systems to cloud infrastructure, improving efficiency and resilience.
Acted as a technical consultant, advising clients on architecture improvements and implementation strategies.

Jan 2023 - Aug 2023

8 months

Germany

Data Analyst / Data Engineer / Data Scientist

o2 Telefónica

Introduced an enterprise-wide data catalog, enhancing discoverability and governance.
Developed complex BI dashboards with DAX & Time Intelligence, delivering key insights to business leaders.
Partnered with business departments to translate requirements into technical implementations, ensuring adoption and impact.
Supported cross-functional teams in enterprise digital transformation initiatives.

Sep 2020 - Dec 2022

2 years 4 months

Germany

E-Commerce Data Manager

Freelance

Built ETL pipelines with Python (pandas, NumPy) for large-scale e-commerce datasets.
Integrated predictive ML models into Django applications to optimize customer experience.
Delivered real-time dashboards in Power BI to support decision-making and revenue growth.

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Telecommunication, Energy, Healthcare, Information Technology, and Retail.

Telecommunication

Energy

Healthcare

Information Technology

Retail

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Business Intelligence and Information Technology.

Business Intelligence

Information Technology

Summary

Multilingual Data Scientist / Solutions Engineer with 4+ years of experience designing and implementing data-driven solutions in enterprise environments. Strong background in Python, SQL, JavaScript, Azure, and BI platforms, with proven expertise in data modeling, system migration, and scalable architectures. Experienced in customer-facing roles, collaborating with business stakeholders to align technology with business value. Passionate about cloud technologies, distributed systems, and AI/ML applications, with excellent communication and problem-solving skills.

Skills

Programming & Data: Python (4+ Yrs), Sql (4+ Yrs), Javascript (4+ Yrs)
Cloud & Platforms: Microsoft Azure (3+ Yrs), Power Bi, Synapse, Microsoft Bi Stack
Architectures: Distributed Systems, Data Governance, Migration Of Legacy Systems
Pre-sales & Consulting: Stakeholder Engagement, Technical Advisory, Enterprise Bi Strategy
Ai/ml: Predictive Modeling, Data Pipelines, Feature Engineering, Real-time Analytics
Other: Agile Methodologies, Cross-functional Collaboration, Presentation & Demo Skills

Languages

Bulgarian

Native

German

Advanced

English

Advanced

Spanish

Advanced

Education

Oct 2022 - Jun 2024

DHBW/FOM University of Applied Sciences for Economics & Management

Bachelor of Science, Business Informatics · Business Informatics · Germany

Sep 2011 - Jun 2015

IES Bernat Guinovart

Professional Training in Administration & Accounting · Administration & Accounting · Spain

Certifications & licenses

Improving Your Business Through a Culture of Health

HarvardX

Data Science: Inference And Modeling

HarvardX

Python For Data Science

IBM

Introduction To Neuroscience

MicroBachelors

Statistics

Experience

Total positions 3

Experience in Telecommunication 3 y

Avg length 1 y 9 m

Longest experience 2 y 6 m

Global Experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles AI Engineer / Data Scientist, Data Analyst / Data Engineer / Data Scientist, E-Commerce Data Manager

Main industries Telecommunication, Energy, Healthcare

Main business areas Business Intelligence, Information Technology

Qualifications

Highest degree Bachelor

Certifications earned 4

Profile

Created

November 2025

Last Update

December 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Doncho based?

Doncho is based in Tarmstedt, Germany.

What languages does Doncho speak?

Doncho speaks the following languages: Bulgarian (Native), German (Advanced), English (Advanced), Spanish (Advanced).

How many years of experience does Doncho have?

Doncho has at least 6 years of experience. During this time, Doncho has worked in at least 3 different roles and for 2 different companies. The average length of individual experience is 2 years and 10 months. Note that Doncho may not have shared all experience and actually has more experience.

What roles would Doncho be best suited for?

Based on recent experience, Doncho would be well-suited for roles such as: AI Engineer / Data Scientist, Data Analyst / Data Engineer / Data Scientist, E-Commerce Data Manager.

What is Doncho's latest experience?

Doncho's most recent position is AI Engineer / Data Scientist at Freelance.

What companies has Doncho worked for in recent years?

In recent years, Doncho has worked for Freelance and o2 Telefónica.

Which industries is Doncho most experienced in?

Doncho is most experienced in industries like Telecommunication, Energy, and Healthcare. Doncho also has some experience in Information Technology and Retail.

Which business areas is Doncho most experienced in?

Doncho is most experienced in business areas like Business Intelligence and Information Technology.

Which industries has Doncho worked in recently?

Doncho has recently worked in industries like Telecommunication, Energy, and Healthcare.

Which business areas has Doncho worked in recently?

Doncho has recently worked in business areas like Business Intelligence and Information Technology.

What is Doncho's education?

Doncho holds a Bachelor in Business Informatics from DHBW/FOM University of Applied Sciences for Economics & Management.

Does Doncho have any certificates?

Doncho has 4 certificates. Among them, these include: Improving Your Business Through a Culture of Health, Data Science: Inference And Modeling, and Python For Data Science.

What is the availability of Doncho?

Doncho is immediately available part-time for suitable projects.

What is the rate of Doncho?

Doncho's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.