Senior Developer

Mendix – the leading low-code application development platform:

The Mendix Platform uses visual modeling to abstract long-form coding out of application development. Our customers use Mendix to create and deploy better software for the enterprise, faster. Mendix enables collaboration between business users and developers to work together throughout the development process.

Read our Customer Stories to learn more about the wealth of software and solutions global organizations have built with the Platform.

At Mendix we strive to maintain a diverse, open, and safe working environment where people can be their true selves. We value every voice, celebrate individuality, and appreciate the diversity of thought and experience. People who work here are driven, smart, and really good at what they do.

As this market evolves, we encourage people of all skill levels to work with the platform, both for clients and candidates. Apply today to discover how you can make a meaningful impact with Mendix.

About the Team:

Our unit is responsible for driving innovation within Mendix, as we work on cutting-edge technologies like Shopfloor connectivity or democratizing Generative AI solutions as part of our global R&D organization.

Our local team in Berlin develops innovative solutions so our customers can create smarter applications for shopfloor operators with a great end-user experience.

About the Role:

We are seeking an experienced and dynamic Senior Developer to join our growing team. This role is ideal for a passionate developer with expertise in TypeScript, JavaScript, React, and Node.js. The successful candidate will play a critical role in designing, building, and maintaining scalable web applications while mentoring and guiding junior team members to grow and excel.

Key Responsibilities:

• Design, develop, and maintain full-stack applications using TypeScript, JavaScript, React, and Node.js. Among other technologies like HTML5, CSS3, Java and C#.
• Collaborate with cross-functional teams, including product managers and designers, to translate business requirements into technical solutions.
• Ensure high performance, scalability, and reliability of applications through best coding practices and robust testing.
• Conduct code reviews, provide constructive feedback, and uphold high standards for code quality.
• Mentor and coach junior developers, fostering a culture of continuous learning and improvement.
• Participate in architectural decision-making to guide the development of innovative solutions.
• Troubleshoot, debug, and optimize code to ensure optimal performance and user experience.
• Stay up-to-date with industry trends, emerging technologies, and best practices to drive innovation.

You’re the innovator we need if:

• You have proven experience as a Full-Stack Developer, with a strong portfolio of projects demonstrating expertise in TypeScript, JavaScript, React, and Node.js.
• Possess a strong understanding of modern web development tools, frameworks, and libraries.
• Have hands-on experience with RESTful APIs & microservices architecture.
• Are familiar with CI/CD pipelines, version control systems (e.g., Git), and agile methodologies.
• Have direct experience mentoring and coaching junior developers, with a track record of fostering professional growth.
• Are a strong problem-solver, with attention to detail, and the ability to handle complex technical challenges.
• Have excellent communication and collaboration skills, with the ability to work effectively in a team environment.
• BONUS: Experience with cloud platforms (AWS, Azure, GCP) and DevOps practices is a plus.

Additional requirements that would be helpful to have are:

• Experience with WebSockets.
• Experience with Electron and OS integration.
• Knowledge of developing accessible & responsive web pages.
• You know what product development life cycle requires, such as setting up a CI/CD pipeline with automated tests and (remote) observability.

What’s in it for you?

• Competitive salary with regular reviews and opportunities for advancement.
• 30 days PTO.
• Hybrid work environment and flexible working hours to accommodate a healthy work-life balance.
• Career development training and opportunities with a dedicated training budget for professional development.
• 2 crafting days per month.

Experience a culture like no other at Mendix:

• We’re flexible in adopting new technologies and methodologies if that makes the product better or our lives easier. Each scrum team is free to choose its own tech stack, so you can always try that latest new idea, framework or design pattern. Our teams are small so that you can have a real influence. We care about open standards, and we’re also big fans of Test-Driven Development. We’re constantly improving our Continuous Integration process, which monitors the quality of our product and makes the lives of our developers and testers easier.
• Every month, we have crafting days when developers are invited to work on whatever they want. For example, people work on a bug that somehow never got prioritized, try out a cool new technology that may be useful to us (now or in the future), build an automated goal counting mechanism for the football table, or a Lego Mindstorms setup to control the elevator.
• We like people who take ownership, and try to give everyone as much freedom as possible. This means there’s as little process as we can get away with, because we don't want to get in your way. We also strive to stay as flat as possible. Do you have an issue? Speak up and let us know. Even though our client base consists of large enterprises, we do not allow a bureaucratic culture to enter our R&D department. We value the start-up culture that has brought us so much success. We are a tech company, not a project-oriented organization.

If you see a job description and think, “I’d be perfect for that” but your experience doesn’t align perfectly with the qualifications – don’t let that hold you back. We’re always eager to hire talented, passionate candidates – so give it a try and apply.

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