# Oleksandra Postavnycha

Oleksandra Postavnycha is a remote worker on Himalayas, Full-stack Developer (AI/ML, desktop) at NDA, based in Ukraine.

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

```text
AI Engineer at NDA who built Python LLM pipelines with RAG, context management, and agent tool calling.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Ukraine |
| Authorized to work in | Ukraine |
| Salary expectations | 30k+ USD |
| Job categories | AI Engineer, Full Stack Developer |
| Skills | Large Language Models, RAG, Embeddings, Vector Databases, Context Management, Prompt Engineering, AI Agents, Tool calling, Model Evaluation, Workflow Automation, Traditional ML, regression, Tree Models, Clustering, Python |

## About

```text
At NDA, I developed and integrated LLM solutions in Python, including a text-processing pipeline using local quantized models served through vLLM. I also built retrieval over embeddings in a vector database to narrow context when the model struggled with the full reference catalog.

I built agent workflows with tool calling and reference sets to evaluate answer quality after prompt or model changes. My work also included prompt engineering, low-code workflow automation, and logging, metrics, and dashboards for containerized services.

Alongside AI/ML work, I developed Delphi (VCL) desktop modules with MS SQL Server, taking tasks from client requirements to release. For several months, I assigned tasks and priorities, tracked deadlines, and resolved blockers.
```

## Experience

### Full-stack Developer (AI/ML, desktop)

NDA

```text
Developed AI/ML solutions including text processing pipelines, RAG systems, and agent workflows. Built desktop modules with Delphi and managed tasks from requirements to release.
```

Skills: Python, VLLM, RAG, Embeddings, Vector-Databases, Prompt-Engineering, Agent, Tool-calling, Docker, CI-CD, Prometheus, Grafana, Delphi, MS-SQL-Server, Claude-Code

## Education

### Kyiv Polytechnic Institute

Bachelor's degree, Computer Modeling of Physical Processes

```text
Bachelor's degree in Computer Modeling of Physical Processes, specializing in Physics and Astronomy.
```

### Hillel IT School

Manual QA course, Manual QA

```text
Completed a Manual QA course and received a certificate.
```

## Tech stack

- PostgreSQL
- Jira
- Python
- Grafana
- Prometheus
- Linux
- Git
- Docker
- vLLM
- Claude Code

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

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