Full Stack Developer

Heads-up: We're currently not able to sponsor work visas through the IND. To keep things smooth and compliant, we can only consider candidates who already have the right to work in the Netherlands without IND sponsorship.

Furthermore this is a hybrid role based in our Amsterdam office. Only candidates who already reside in the Netherlands and can commute to the office at least 3 days per week will be considered.

About the Billy Grace

Billy Grace is the first fully operational AI Digital Marketing Partner.

A lot has changed in the past 20 years, and so has the role of marketers. We have seen a shift from the creative marketer to a fully data-driven marketer, where analyzing, optimizing and reporting are at the core of daily tasks. Our mission is to free marketing professionals from the never-ending cycle of data management and repetitive tasks. By doing so, we aim to give them more room to be creative and strategic in meeting the needs of their customers, and ultimately drive sustainable business growth.

How? With a fully AI-driven marketing cockpit. 

This AI colleague takes on the responsibilities of tracking, attribution, analysis, automation, and optimization of all aspects o f the online marketing process, freeing marketers from these tedious tasks.

What will you do?

We are a high-potential start-up and are just at the beginning. You will have an impact within a company that can grow very quickly. As a Fullstack Developer, you are responsible for building new features and maintaining the application our customers sign into daily. Plus you will be working our in house tracking pixel. This role puts you close to the product and the data. Other tasks that are relevant for this role are:

• Building and maintaining React.js components

• Designing and implementing Django API endpoints—both ORM-based and raw SQL for high-performance use cases.

• Contributing to architectural decisions as we are growing rapidly

• Writing tests where they count, not for ceremony but for confidence.

• Collaborating with the product teams to build intuitive, performant UIs that make complex data understandable.

• Writing backend logic that loads, transforms, and mutates data, especially for analytics and reporting features.

About you

• Living in the Netherlands

• You’re not afraid to reach out, clarify, and challenge assumptions — you take ownership instead of waiting for perfect specs

• You’re comfortable being accountable for features end-to-end

• Fullstack web application (preferable SaaS) experience (3 or more year)

• Experience with React (3 or more years)

• Experience in django, flask or fastapi (1y)

• Experience writing queries (1 or more years)

• Has had the responsibility for a full software product (end to end)

• Preferably experience with pandas (1 or more years)

• Preferably experience in digital marketing and understanding the basics of how digital marketing campaigns work.

• Preferably experience in AWS services including: Lambda, EC2, VPS, ECS (Fargate), IAM

Team

You are part of the tech team that now consists of five full stack developers, four data scientists and two data engineers. At our company, your managers are also hands-on engineers. We believe great products are built by people who understand the work deeply. That means:

• No unnecessary meetings – only meet when it adds real value.

• No corporate theatre – we keep things focused, practical, and developer-friendly.

• Minimal process, maximum momentum – we avoid the heavy ceremony of typical Scrum/Agile rituals in favor of fast, flexible collaboration.

If you're tired of planning poker and standups that go nowhere, you'll feel at home here.

Working at Billy Grace

We have a unique story, a unique solution, unique vision and a unique momentum. We are a close-knit club of friends with international ambition, where ambitious talent works on a top product. Besides that;

• 25 holidays with a sincere holiday policy;

• A Macbook;

• You have a day off on your birthday;

• Company ski trip (if we hit our target);

• An annual volunteer day, where we give back to society as a team;

• A company-sponsored lunch, where we all eat together;

• Time, space, and opportunities for courses and personal development;

• We also have a partnership with OpenUp – a company you can contact freely and completely anonymously with any questions related to mental well-being;

• Working in the heart of Amsterdam city centre (hybrid);

• You are at the start of a promising start-up with a lot of freedom, responsibility and room for your own ideas.

• Space and time for training & development;

• With unforgettable team outings.