Recommended expert
Doncho Panayotov
AI Engineer / Data Scientist
Experience
Sep 2023 - Present
2 years 7 monthsGermany
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 monthsGermany
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 monthsGermany
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.
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Telecommunication (3 years), Energy (2.5 years), Healthcare (2.5 years), Information Technology (2.5 years), and Retail (2.5 years).
Telecommunication
Energy
Healthcare
Information Technology
Retail
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Business Intelligence (5.5 years) and Information Technology (5.5 years).
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
NativeGerman
AdvancedEnglish
AdvancedSpanish
AdvancedEducation
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
Profile
Created
Last Update
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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 (IT) and Retail.
Which business areas is Doncho most experienced in?
Doncho is most experienced in business areas like Business Intelligence and Information Technology (IT).
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 (IT).
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.
How to hire Doncho?
To hire Doncho, click the Meet button on the profile to request a meeting and discuss your project needs.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
1000
750
500
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Market avg: 820-980 €
Market avg: 820-980 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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