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Barış sezer

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Open Source

Routewise

An open-source route optimisation API written in Go and Python, starred by 1,200+ developers on GitHub.

Project

2024

Client

Open-source project

Service

API & developer tooling

Timeline

Ongoing

Location

Remote

Overview

Why I built it

Small delivery teams kept asking for route optimisation that didn’t cost thousands a month. I started Routewise as a weekend project to give them a fast, free alternative.

How it works

A Go core for the routing engine, Python bindings for data teams, a REST API with OpenAPI docs, and a CI pipeline that benchmarks every pull request.

Where it is now

Routewise has 1,200+ stars on GitHub, 40 contributors, and is used in production by two delivery startups.

Barış Sezer

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Letters

Occasional notes on new projects and what I’m learning.

© 2026 Barış Sezer

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