Software Developer

Rotterdam Innovation City; Rotterdam; On-site; EUR 45,000 - 60,000; Full time

Job summary

A technology company in Rotterdam is seeking a talented Software Developer to join their team. You will develop Digital Assistants using cutting-edge AI technologies. Ideal candidates have experience in Node.js and Typescript, a passion for solving problems, and can communicate well in both Dutch and English. Join a dynamic team focused on transforming customer service through innovation.

Qualifications

• 1-2 years working experience with object-oriented programming.
• Genuine enthusiasm about technology and problem-solving.
• Deep respect for Development Hygiene principles.
• Fluent in Dutch and English; German is a plus.

Responsibilities

• Design and code outstanding Digital Assistants.
• Identify and implement platform improvements.
• Work with engineers to implement system connectivity.
• Investigate and evaluate Digital Assistants performance.
• Join meetings to consult on technical matters.

Skills

Node.js

Typescript

PHP

Python

Version control (Git)

Unit testing

Integration testing

Docker

Cloud Technologies

Networking

Job description

Software Developer

AssistYou is looking for a talented, enthusiastic Software Developer to join our team. This is a great opportunity to develop your technical skills. Forget about building webshops and similar projects, you will be learning how to implement and apply LLMs & other AI‑based technologies to create outstanding Digital Assistants for some of the most well‑known Dutch, German, and other European companies. We are focused on voice‑based channels (i.e., telephony), so streaming data, real‑time processing, blending LLMs with code & Cloud Computing are all part of what you will be learning and working on.

What we do

At AssistYou, we build industry‑leading voice assistants ("AI agents") that answer calls for top Dutch enterprises including ANWB, Coolblue, and Eneco. As pioneers in speech technology and AI for customer service, we’re transforming the way businesses and their customers connect over the phone.

Our AI agents blend human qualities, like creativity and empathy, with digital strengths such as unlimited scalability and instant response. We eliminate common frustrations for customers: no more waiting on hold, navigating confusing menus, or repeating information. For companies, this means outstanding customer experiences, empowered support teams, and valuable insights that drive better business decisions.

Who we are

We are a team of 14, made up of software developers, customer success specialists, and sales & marketing managers. Our office is located in the center of Rotterdam, right next to Central Station; just 20 minutes from Schiphol Airport.

Responsibilities

• Designing and coding outstanding Digital Assistants for enterprise companies.
• Helping to identify and implement improvements to our platform based on customer feedback and insights.
• Working with engineers from our customers to implement connectivity between our platform and their systems.
• Investigating, evaluating & fine‑tuning the performance of our Digital Assistants.
• Joining (customer) meetings to consult on technical matters and come up with the smartest way to achieve a customer’s goal using our technology.

Requirements

• Genuine enthusiasm about (our type of) technology and your role.
• Social attitude: our ‘products’ communicate seamlessly: we expect the same from you 🙂
• Problem solver: ideally, you’re someone who has been coding day and night, hitting walls and climbing over them because you get a kick out of ‘solving the puzzle’, ‘seeing the light turn on’, etc.
• At least 1-2 years of working experience
  • with object-oriented programming
  • Primarily in Node.js/Typescript
  • and preferably also PHP and/or Python
• Deep respect for and at least basic working experience with Development Hygiene:
  • Version control (Git), unit & integration testing, (deployment through) Docker, Cloud Technologies, Networking.
• Team player: You’ve proven you can work effectively within a team environment, collaborating with peers to achieve project goals and enhance team productivity.
• Languages
  • Native Dutch speaker
  • Fluent in English required
  • Fluent in German is a big plus

Preferred

• Experience with one or more of the following: implementation of API-based LLM (e.g., GPT), audio processing (including ASR and TTS), PBX, Terraform
• Experience with Google Cloud Platform, in particular; BigQuery, Pub/Sub, Cloud Run&Cloud Functions