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nerou GmbH Tech Stack

ML-powered analytics for biological wastewater treatment optimization

IT Services and IT Consulting Köln, Nordrhein-Westfalen 2–10 employees Founded 2021 Partnership

nerou is a two-year-old Cologne-based startup applying machine learning to wastewater treatment operations. The company runs a lean, intern-heavy engineering team (5 engineers, 3 data scientists, 3 designers) actively hiring across all functions — a hiring velocity pattern typical of early-stage product companies scaling from MVP to production. Their tech stack is pragmatic (Python, Angular, SQL, Linux) and their project list reveals simultaneous product work (REST API, time-series SQL queries, UI redesign) and commercial motion (marketing, social campaigns), suggesting a shift from pure engineering toward customer acquisition.

Tech Stack 11 technologies

Core StackFigma Miro Trello Python Angular PHP Linux PHPUnit SQL Bash LinkedIn

What nerou GmbH Is Building

◆Challenges

Complex daily decision making
Costs for operators
Resource and environmental savings
Reducing operating costs
Complex decision-making in wastewater treatment
Managing large data sets
Need marketing support
Managing changing influences
Cost reduction for operators
Plant operation optimization

▲Active Projects

Data visualization of biological measurements
Ui design development
Rest api endpoint development
Software and website redesign
Design library maintenance
Sql query development for time series data
System administration
Custom solution planning
Marketing strategy development
Online and social media campaigns

Hiring Activity

Accelerating15 roles · 9 in 30d

Department

Engineering

5

Data

3

Design

3

Marketing

3

Frontend

1

Support

1

Seniority

Intern

15

Junior

1

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About nerou GmbH

nerou builds software for biological wastewater treatment plants, using machine learning algorithms to analyze process parameters and recommend daily operational adjustments. The platform consolidates sensor data from treatment systems, analyzes trends, and surfaces cost-reduction and environmental-savings opportunities to plant operators. Founded in 2021 and headquartered in Köln, nerou operates as a small partnership and is actively hiring across engineering, data, design, and marketing roles — all positions currently in Germany. Their customers are water treatment operators focused on reducing operating costs and optimizing plant efficiency.

HeadquartersKöln, Nordrhein-Westfalen

Company Size2–10 employees

Founded2021

Hiring MarketsGermany

Frequently Asked Questions

What tech stack does nerou use?

nerou builds on Python, Angular, PHP, SQL, and Linux. Development tools include Figma, Miro, and Trello for design and project coordination.

What is nerou working on?

Active projects include data visualization of biological measurements, REST API development, time-series SQL queries, UI redesign, design system work, and marketing campaign execution.