Front-end Developer
First seen by Alion on Aug 26, 2026.
Our developers love anything involving software, design and data. They also know exactly how to bend it to their will.
Work on a wide variety of web-based experiences for visitors, users and colleagues alike. Fully utilize and grow your understanding of modern best practices and technologies like Typescript, React and web API’s.
As a front-end developer at Cleopatra Enterprise you’ll have impact on our, worldwide used, SaaS solution Cleopatra Enterprise which is being used by various international organizations like; Shell, Vopak & Heineken. You will be working in a diverse & passionate team of developers. Working in sprints with the team while also taking ownership in shaping your job to create an environment you strive in. Do you want to help us building and expanding Cleopatra Enterprise to make sure our clients finish their multi-million projects within time and budget? Then carry on reading 👇
Tech stack and Qualifications
- BSc degree in Computer Science or relevant field
- Experience developing rich web applications, ideally in an enterprise setting.
- Several years of experience with TypeScript and React.
- Experience with the web development ecosystem in general, including common tools like GIT, NPM, Tailwind, test runners, etc.
- Experience working with web API’s, able to collaborate with back-end developers on design and implementation decisions.
- Capable of delivering well-structured HTML/CSS, with attention for design/UX requirements and best practises.
- Strong communication skills and ability to autonomously solve problems and (where necessary) make recommendations on possible approaches.
What we offer
- Dynamic and international working environment
- A good salary and 29,5 vacation days
- Pension scheme and a performance related bonus
- Flexible working hours and frequent company events
- A modern office, easily reachable from Rotterdam
- Great career growth opportunities in a technology driven organisation
As a front-end developer at Cleopatra Enterprise, you will have the opportunity to prototype and develop cross-platform applications that will enrich our products and services. Affinity with design principles is important and you’re skilled in creating appealing responsive layouts. You have a willingness to research and learn new technologies to solve problems and are able to perform well in a fast-paced environment. As well as possessing excellent analytical and multitasking skills you’ve proven yourself as a front-end developer through your previous work experience.
Project Spotlight
Creating our state-of-the-art project controls software
Cleopatra, our software product, is used by clients worldwide to ensure that their multi-million projects finish within time and budgets. This versatile, powerful Java-driven tool is built in-house by our development team.
Colleague Experiences
“You have a lot of responsibility when you work on Cleopatra, since you build a product directly for our clients. When everything works out in the end, especially after a lot of trial and error, it can be incredibly rewarding. I really feel like I’m contributing to the bigger picture.”
Mark, Lead Software Engineer