# Experience

> Engineering roles and long-running projects: Orctatech, Bookmie, HushSense, and independent data-science and machine-learning work.

## Orctatech - Mobile & Software Engineer (2023 - present)

Building production mobile applications with the [Orctatech Engineering Team](https://github.com/Orctatech-Engineering-Team) using Flutter and Dart, and shipping them to the Google Play Store.

- Designed and developed the [Somayen Delivery App](https://play.google.com/store/apps/details?id=com.orctatech.somayendeliveryapp), a multi-sided delivery platform connecting customers, vendors and riders.
- Implemented live order tracking, in-app payments and a responsive Flutter UI, with a focus on performance and maintainability.
- Collaborated within an engineering team on code review, releases and Play Store deployment.

## Bookmie - Founder & Lead Developer (2023 - present)

Bookmie is a management platform to control and track activities in a hostel - handling bookings, rooms and occupancy in one place. The team works out of [Bookmie-Devs](https://github.com/Bookmie-Devs).

- Led product direction and development across mobile and web, building the booking and management flows end to end.
- Coordinated a small developer team to iterate on features and ship improvements.

## HushSense - Blockchain Developer (2025)

[HushSense](https://github.com/Codernointed/hush-sense) is a Web3 project that uses blockchain and sensing to help tackle noise pollution, pairing environmental data with on-chain incentives.

- Contributed to the smart-contract and application logic connecting sensor data to on-chain rewards.
- Explored how decentralized incentives can drive real-world behaviour change around noise.

## Data Science & ML - Data Scientist & ML Engineer (2023 - present)

Independent and collaborative machine-learning work using Python, TensorFlow and the scientific-Python stack, published on [@Codernointed](https://github.com/Codernointed).

- Built **Vision Infinity**, a real-time eye-disease detection and health-checking application powered by deep learning.
- Created a **sound-based anomaly detection** system applying audio signal processing and ML to flag irregularities in real time.
- Completed the British Airways data-science job simulation, covering web scraping, sentiment analysis and predictive modelling.

## Pages

- [About](https://paulbotchwey.com/about)
- [Projects](https://paulbotchwey.com/projects)
- [Mobile projects](https://paulbotchwey.com/projects/mobile)
- [Web projects](https://paulbotchwey.com/projects/web)
- [Data science & ML projects](https://paulbotchwey.com/projects/data)
- [Contact](https://paulbotchwey.com/contact)
- [Privacy policy](https://paulbotchwey.com/privacy)

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Last updated: 2026-08-25