About the Role

As a Software Engineer at Abykys, you will be responsible for building and extending the platform and backend services while supporting production systems. You will also gather requirements from customers and help shape both technical and product decisions.

Location

Haarlem, Netherlands (Hybrid)

Office Days

Monday & Thursday

Full-time

40 hours

Before You Apply

We're an early-stage startup. Please only apply if:

You have the legal right to work in the Netherlands
You can work from our Haarlem office every Monday and Thursday
You enjoy ownership, ambiguity, and the realities of working in a small startup team
You are looking for the risk/reward that comes with joining a startup

As part of your application, we recommend sending a brief individual motivation (maximum of 200 words) explaining why you want to join an early-stage startup in the data governance space. This can be sent to hello@abykys.com along with your CV and will be considered as part of your application. We will prioritise candidates who apply through this manner.

Build Europe's First Data Exchange

We're building infrastructure that enables organisations to transact data transparently, fairly, and under enforceable legal conditions. Built on research from the University of Amsterdam, THFLR transforms legal agreements into machine-enforceable rules, enabling trusted and scalable data transactions.

We work with organisations including AMS-IX, KPMG, SURF, and the University of Amsterdam.

What We Mean by a Software Engineer

A) A Delivery-Focused Engineer: Independently implement and deploy technical solutions, taking individual ownership for your delivery being reliable and on time. You understand what it means to support a system in a production environment.

B) An Engineer Who Helps Shape the Product: You have the capability and drive to understand the wider business problem by directly communicating with and learning from our customers and partners. This enables you to take ownership of the functional direction of the product. Your technical and functional abilities complement each other, resulting in solving the customer’s problem with speed and accuracy.

Software engineering remains the core of this role. We expect you to build and ship software. We're happy if you're A. If you're A + B, even better.

What You'll Do

Build and extend our platform and backend services
Gather requirements from customers and partners
Support production systems
Help shape technical and product decisions

Technology Stack

Kotlin, Rust, JavaScript

What We Offer

Competitive salary
Stock option participation
25 vacation days
Travel expense allowance
Laptop budget

Requirements

Software Engineering

You should have a strong background in software engineering principles.

Kotlin

Experience with Kotlin is essential for building and extending the platform.

Rust

Familiarity with Rust is required as it is part of the technology stack.

JavaScript

Knowledge of JavaScript is necessary for backend services.

Nice to Have

Startup Experience

Experience working in a startup environment is a plus.

Customer Interaction

Ability to communicate directly with customers to gather requirements is beneficial.

Benefits

Competitive Salary

We offer a competitive salary to our employees.

Stock Options

Participation in stock options is available.

Vacation Days

Employees receive 25 vacation days.

Travel Allowance

A travel expense allowance is provided.

Laptop Budget

We offer a budget for purchasing laptops.