# Kauri Sosi

Kauri Sosi is a remote worker on Himalayas, Senior AI/ML Engineer at Nortal, based in Estonia.

Source: https://himalayas.app/@kaurisosi

```text
Senior AI/ML Engineer at Nortal who designed RAG systems processing over 2.4 million records.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Estonia |
| Authorized to work in | Estonia |
| Salary expectations | 40k+ EUR |
| Job categories | Data Architect, AI ML Engineer, Machine Learning Engineer, Software Engineer, Software Developer |
| Skills | Data Architecture, Data Engineering, Apache Spark, PySpark, Python, SQL, ETL, Data Pipelines, Data Ingestion, data transformation, Distributed Computing, Lakehouse Architecture, Delta Lake, Medallion (Bronze Silver Gold), Data Warehouse Migration |
| LinkedIn | https://linkedin.com/in/kauri-sosi-654513440 |

## About

```text
At Nortal, I architected enterprise AI and data-processing solutions, including reusable ingestion and transformation pipelines that cut processing time from 42 minutes to 11. I also designed RAG systems processing datasets exceeding 2.4 million records.

Before Nortal, I developed machine-learning workflows at Datel and backend data systems at Net Group and Mobi Lab. My work has included production model evaluation and monitoring, Docker-based deployment, and data-processing improvements across enterprise applications.
```

## Experience

### Senior AI/ML Engineer

[Nortal](https://himalayas.app/companies/nortal). Jan 2024 - Oct 2026

```text
Architected end-to-end AI and data processing solutions, improving processing time from 42 to 11 minutes and reducing deployment incidents by 34%. Led architectural reviews and mentored 5 engineers.
```

Skills: Python, SQL, Docker, Apache-Spark, ETL, Data-Pipelines, RAG, LLM, MLOps, CI-CD, Databricks, Lakehouse, Medallion, Delta-Lake, AWS, Azure, GCP

### Machine Learning Engineer

Datel. Jul 2021 - Dec 2023

```text
Developed production-oriented machine learning solutions and data workflows, reducing dataset preparation time from 36 to 13 minutes and prediction defects by 27%. Mentored 3 developers.
```

Skills: Python, SQL, Docker, ETL, Feature-Engineering, Machine-Learning, Deep-Learning, MLOps, CI-CD, Model-Serving, Testing-Automation

### Software Engineer

Net Group. Jan 2019 - Jun 2021

```text
Developed backend data processing and ETL components, reducing average processing time from 28 to 9 minutes. Introduced Docker for consistent development and deployment.
```

Skills: Python, SQL, Docker, ETL, Data-Processing, Backend-Development, CI-CD, Testing-Automation

### Software Developer

Mobi Lab. Jun 2017 - Dec 2018

```text
Built backend application functionality and data-processing components, reducing request-processing time from 1.8 seconds to 620 milliseconds. Integrated services with external components.
```

Skills: Python, SQL, Backend-Development, Data-Processing, Integration, Testing-Automation

## Education

### University of Tartu

Master of Science, Computer Science. 2012 - 2017

```text
Master of Science in Computer Science from the University of Tartu, completed in 2017.
```

## Tech stack

- Apache Spark
- PySpark
- Python
- Scala
- Docker
- SQL
- Delta Lake
- AWS
- Azure

To contact Kauri, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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