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Maciej Tatarek

Independent Contractor

Maciej Tatarek
Berlin, Germany

Experience

Apr 2023 - Present
2 years 11 months
Berlin, Germany

Independent Contractor

Tatarek Development GmbH

  • Offer AI consulting, architecture design, and application development services to businesses, delivering tailored solutions aligned with their unique needs and goals.
  • Specialize in enhancing information access through custom internal knowledge management and customer service solutions.
  • Develop scalable conversational text and voice assistants and copilots for seamless interactions.
  • Build and optimize MLOps and information extraction pipelines for efficient AI deployment.
  • Tech: Python • Javascript • LLM
Jan 2023 - Present
3 years 2 months
Berlin, Germany

CTO / Co-Founder

Plato Digital

  • Collaborated with major pharma companies to enhance communication between pharma and patients, providing education and therapy assistance.
  • Developed a patient-facing cross-platform mobile app for cancer patients, delivering hyper-personalized treatment information in collaboration with clinics.
  • Created a robust analytics system, optimizing user engagement and delivering valuable insights for partners.
  • Implemented a data privacy-compliant AI assistant for medical data collection, ensuring LLM content creation with accuracy and quality.
  • Analyzed data privacy and security guidelines for processing medical information and prepared processes for ISO 27001 certification.
  • Tech: React Native • OpenAI • GCP • LLM
Jun 2020 - May 2023
3 years
Berlin, Germany

AI Engineering Consultant

Accenture

  • Led a high-performing team delivering more than 9 customized conversational AI apps to over 30,000 weekly users.
  • Designed architecture, supervised development, and scaled content and functionality.
  • Improved language model quality and customer satisfaction metrics.
  • Established MLOps pipelines for efficient AI model deployment.
  • Created advanced analytics and conversational AI prototypes in on-premise and cloud environments.
  • Identified and evaluated CAIP and Voice software vendors for digital transformation proposals.
  • Tech: Python • Jenkins • Docker • k8s • LLM
Oct 2018 - Jun 2020
1 year 9 months
Berlin, Germany

Ads Automation & Data Engineer

X24Factory

  • Led the development of an automated advertisement creation and cost management platform, utilizing tracking, inventory and ads performance data.
  • Implemented a data warehouse infrastructure with data streaming pipelines to support real-time data flow.
  • Developed, trained, and deployed deep learning models for product classification and recommendation tasks.
  • Created ETL pipelines for seamless data integration and processing.
  • Tech: Python • GCP • k8s • ELK • Tensorflow • Gitlab • BigQuery
Jun 2017 - Oct 2018
1 year 5 months
Wrocław, Poland

Software Engineer

Opera Software

  • Developed and integrated ML text classification models and information extraction pipelines to enhance Opera News Feed's news recommendation engine.
  • Created monitoring tools for in-browser advertising systems, ensuring seamless ad delivery and performance tracking.
  • Provided Level 3 technical support to partners, resolving mobile payment system issues.
  • Tech: Python • Java • Gitlab • SKlearn • Wireshark • Grafana
May 2017 - Nov 2018
1 year 7 months
Wrocław, Poland

Co-Founder Machine Learning Engineer

Botwise

  • Co-founded Botwise, a knowledge bot platform, seamlessly integrating with company knowledge sources for instant answers.
  • Utilized machine learning techniques, including text vectorization, to enhance search functionality and improve user experience.
  • Designed and developed data pipelines, optimizing search results and user analytics.
  • Tech: Python • Elasticsearch • Tensorflow • W2V
Mar 2016 - Jan 2017
11 months
Wrocław, Poland

Data Analyst Intern

KGHM Cuprum

  • Designed and implemented advanced algorithms for analyzing mining machinery data, employing signal processing techniques and machine learning methodologies.
  • Collaborated with a team of engineers and data scientists to develop innovative approaches for optimizing mining operations.
  • Tech: Matlab • Python

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 Information Technology (7 years), Healthcare (3 years), Pharmaceutical (3 years), Professional Services (3 years), Advertising (1.5 years), and Media and Entertainment (1.5 years).

Information Technology
Healthcare
Pharmaceutical
Professional Services
Advertising
Media and Entertainment

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 Information Technology (9 years), Product Development (9 years), Business Intelligence (8 years), Customer Service (4 years), and Research and Development (2.5 years).

Information Technology
Product Development
Business Intelligence
Customer Service
Research and Development

Summary

Experienced AI Specialist with a track record of delivering innovative end-to-end AI solutions across diverse industries. Expert in consulting and possessing strong technical skills. Proven success in achieving favorable outcomes for clients. Seeking AI solution development opportunities, including rigorous data protection environments.

Skills

  • Develop Scalable Conversational Text And Voice Assistants And Copilots For Seamless Interactions.
  • Software Development
  • Customer Service Automation
  • Build And Optimize Mlops And Information Extraction Pipelines For Efficient Ai Deployment.
  • Business Development
  • Tech: Python • Javascript • Llm
  • Communication
  • Data Engineering
  • Data Analytics
  • Problem Solving
  • Devops
  • Mlops

Languages

German
Advanced
English
Advanced
Polish
Advanced

Education

Oct 2012 - Jan 2017

Wrocław University of Science and Technology

Bachelor of Engineering · Wrocław, Poland

Certifications & licenses

AWS Certified Cloud Practitioner

Profile

Created
Last Update
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Frequently asked questions

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

Where is Maciej based?

Maciej is based in Berlin, Germany.

What languages does Maciej speak?

Maciej speaks the following languages: German (Advanced), English (Advanced), Polish (Advanced).

How many years of experience does Maciej have?

Maciej has at least 10 years of experience. During this time, Maciej has worked in at least 7 different roles and for 7 different companies. The average length of individual experience is 1 year and 4 months. Note that Maciej may not have shared all experience and actually has more experience.

What roles would Maciej be best suited for?

Based on recent experience, Maciej would be well-suited for roles such as: Independent Contractor, CTO / Co-Founder, AI Engineering Consultant.

What is Maciej's latest experience?

Maciej's most recent position is Independent Contractor at Tatarek Development GmbH.

What companies has Maciej worked for in recent years?

In recent years, Maciej has worked for Tatarek Development GmbH, Plato Digital, and Accenture.

Which industries is Maciej most experienced in?

Maciej is most experienced in industries like Information Technology (IT), Healthcare, and Pharmaceutical. Maciej also has some experience in Professional Services, Advertising, Media, and Entertainment and Publishing.

Which business areas is Maciej most experienced in?

Maciej is most experienced in business areas like Information Technology (IT), Product Development, and Business Intelligence. Maciej also has some experience in Customer Service and Research and Development (R&D).

Which industries has Maciej worked in recently?

Maciej has recently worked in industries like Information Technology (IT), Healthcare, and Pharmaceutical.

Which business areas has Maciej worked in recently?

Maciej has recently worked in business areas like Information Technology (IT), Product Development, and Business Intelligence.

What is Maciej's education?

Maciej holds a Bachelor from Wrocław University of Science and Technology.

Does Maciej have any certificates?

Maciej has 1 certificate: AWS Certified Cloud Practitioner.

What is the availability of Maciej?

Maciej is immediately available for suitable projects.

What is the rate of Maciej?

Maciej'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 Maciej?

To hire Maciej, 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.

1200
900
600
300
Market avg: 890-1050 €
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.