Freelancer profile translated to English.
Back to original languageAbout Jana
What I bring
- 12 years of programming experience, of which6 years professionallyin use
- Hands-on Machine Learning experience: from LLMs & CNNs to lightweight, efficient models
- Quick graspof business logic & new topics
- Team player with initiative – I enjoy my work and even more so good collaboration
Focus Areas
Machine Learning · NLP · Transformer/LLMs · MLOps
Tech Stack
Languages
Python · JavaScript
Development & Deployment
Docker · GitHub Actions · Terraform · Nginx · Jenkins · GitLab CI/CD
Cloud
GCP (Vertex AI, Compute Engine, BigQuery) · AWS (ECS, CloudFormation, S3)
Databases
Elasticsearch · SQL · BigQuery
Visualization
Grafana · Kibana · Adobe Analytics · Plotly · Matplotlib · TensorBoard · AmCharts 4/5
Frameworks & Libraries
ML: PyTorch · Transformers · TensorFlow · Keras · Scikit-learn · SpaCy · Gensim · NLTK
Data: pandas · Kafka · Spark
Web & API: Flask · Django · Node.js · Vue.js · Quasar
Methodology
Scrum · Kanban · CI/CD · Git Flow · Code Reviews · Pair Programming · Test Automation · TDD · Product Lifecycle Management
German
Native or bilingual
English
Fluent
Russian
Conversational
Swedish
Basic
Remote only
Primarily works remotely
Experience
- OttoSenior Data ScientistRETAIL (LARGE RETAILERS)October 2023 - March 2025 (1 year and 5 months)Hamburg, GermanyOptimization of the filter functionality of the online shop otto.de in an interdisciplinary team using LLMs. Development of an MLOps platform with Dagster for automated retraining and deployment of ML models. In addition to LLMs, Fasttext and XGBoost were also used for various multi-label problem sets.
- masem research institute GmbHData ScientistBANKING AND INSURANCEOctober 2022 - September 2023 (11 months)Wiesbaden, GermanyIndependent support of customer projects. The largest client was R+V, for whom I conceptualized and built a platform for semi-automated processing of sensitive data.Team lead and project management for another project in the field of machine learning, with a focus on image processing.
- droxIT GmbHFullstack Developer (Machine Learning)E-COMMERCEAugust 2019 - October 2022 (3 years and 2 months)Mainz, GermanySupport and participation in numerous customer projects in the areas of Data Science and Data Engineering, often with a focus on search algorithms. Development of SaaS solutions, MVPs, data processing and visualization pipelines. Development of proprietary software products in the areas of microservices for machine learning and search technology.
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Education
- Master of ScienceJohannes Gutenberg University Mainz2020Master of Science - MS, Naturwissenschaftliche Informatik
- Bachelor of ScienceJohannes Gutenberg University Mainz2016Bachelor of Science - BS, Informatik