CMS developer

Dentsu Aegis Network; Rotterdam; On-site; EUR 40.000 - 60.000; Full time

Job summary

A leading digital solutions provider is seeking a CMS Developer to create and customize digital experiences for top-tier brands. This role involves collaborating with UX/UI designers and developers, utilizing enterprise CMS platforms, while ensuring high-performance and user-friendly websites. The ideal candidate will have solid experience in CMS development, a keen attention to detail, and a proactive approach in team settings.

Benefits

3 extra Well-being Days

2 Social Impact Days for charity work

Extensive learning and development opportunities

Hybrid work model (2-3 days in the office)

Qualifications

• Experience customizing CMS templates and modules.
• Hands-on experience with enterprise CMS platforms.
• Familiarity with version control systems and CI/CD pipelines.

Responsibilities

• Develop and maintain websites using enterprise CMS platforms.
• Collaborate with designers for UI/UX implementation.
• Troubleshoot and resolve CMS-related issues.

Skills

HTML

CSS

JavaScript

Problem-solving

Attention to detail

Education

2–4 years of experience in CMS development

Proficiency in at least one server-side language (C#, PHP, Java)

Tools

Optimizely

Sitecore

Magnolia

Git

Job description

Job Description:

Are you passionate about building high-performance digital experiences that are both scalable and user-friendly? As aCMS Developer, you’ll be responsible for developing, customizing, and maintaining content management system (CMS) solutions that power engaging digital platforms for top-tier brands.

You’ll collaborate closely with UX designers, front-end developers, and content strategists to bring websites and digital ecosystems to life. This role is ideal for someone with a solid technical foundation in CMS platforms and a passion for clean, maintainable code and user-centric design.

Key Responsibilities

• Develop and maintain websites and digital platforms using enterprise CMS platforms such as Optimizely, Sitecore, Magnolia, or similar.
• Customize CMS templates, components, and modules to meet client-specific needs.
• Integrate CMS platforms with third-party services, APIs, and marketing technologies.
• Collaborate with designers and front-end developers to ensure seamless implementation of UI/UX designs.
• Optimize websites for performance, accessibility, and SEO.
• Troubleshoot and resolve CMS-related issues and bugs.
• Participate in code reviews and contribute to the continuous improvement of development practices.

Qualifications

• 2–4 years of experience in CMS development.
• Proficiency in HTML, CSS, JavaScript, and at least one server-side language (e.g., C#, PHP, Java).
• Hands-on experience with one or more enterprise CMS platforms (e.g., Optimizely, Sitecore, Magnolia, Adobe Experience Manager).
• Familiarity with version control systems (e.g., Git) and CI/CD pipelines.
• Solid understanding of web performance, security, and accessibility best practices.
• Strong problem-solving skills and attention to detail.
• Ability to work effectively in cross-functional teams.

Nice to Have

• Experience with headless CMS architectures and JAMstack.
• Familiarity with cloud platforms (e.g., Azure, AWS) and containerization tools (e.g., Docker).
• Knowledge of personalization, localization, and multi-site management.
• Experience working in an agency or consultancy environment.

What We Offer

• A dynamic, international work environment with colleagues from around the globe.
• A challenging position at a successful company in a growing market.
• A fun and inclusive culture—think foosball, table tennis, themed events, and team parties.
• 3 extra days off (yes, at Merkle we take your well-being very seriously) - in addition to 25 annual vacation days, there are 3 Well-being Days.
• 2 Social Impact Days - you can volunteer for a charity of your choice.
• Extensive learning and development opportunities, including a wide range of personal and online training.
• A hybrid work model, with 2-3 days in the office and the rest working from home.
• A competitive salary and excellent secondary benefits.

Where You’ll Work

You’ll join a talented, diverse team of professionals in our Amsterdam or Rotterdam office. We’re a group of curious problem-solvers who thrive on collaboration, creativity, and making the impossible possible. At Merkle, we value initiative, celebrate individuality, and never forget to have fun along the way.

About Merkle

Merkle is a leading data-driven customer experience management (CXM) company, delivering personalized experiences across platforms and devices for top global brands. With deep expertise in data, technology, and analytics, Merkle helps clients unlock powerful consumer insights and drive hyper-personalized marketing strategies. As part of the dentsu network, Merkle operates in 145 markets with over 65,000 employees worldwide.

In the Netherlands, our 150+ experts work with clients like Albert Heijn, Vattenfall, Odido, and VodafoneZiggo. We’re proud partners of Google, Adobe, Salesforce, and Selligent.

Company Description

Merkle, a dentsu company, powers the experience economy. For more than 35 years, we've put people at the heart of digital business transformation. As the world's only integrated experience consultancy with deep roots in data science and business performance, Merkle delivers holistic, end-to-end experiences that drive growth, engagement, and loyalty.

Merkle’s expertise has earned recognition as a “Leader” by top industry analyst firms in digital transformation, commerce, experience design, engineering and technology integration, digital marketing, data science, CRM and loyalty, and customer data management.

With more than 16,000 employees globally, Merkle operates across 30+ countries in the Americas, EMEA, and APAC regions. In Denmark, we have over 300 talented colleagues working from offices in Copenhagen and Aarhus.

For more information, visitwww.merkle.com.

Inclusion and Diversity:

At Merkle we believe in the power of diversity. Wewelcome all applications regardless of age, disability, gender reassignment, marital or civil partner status, pregnancy or maternity, race, colour, nationality, ethnic or national origin, religion or belief, sex, or sexual orientation.

Contact:

We look forward to receiving your application for any questions, please contact the TA in charge of this role: David Ryall, Senior Talent Acquisition Partner, EMEA, NE by email at:[e-mail] EMEA, NE. #LI-MERKLE #LI-Onsite #LI-DR2

Location:

Rotterdam

Brand:

Merkle

Time Type:

Full time

Contract Type:

Fixed Term Contract (Fixed Term)