Senior Fullstack Java Developer

  • Full-time

Company Description

Merkle, a dentsu company, powers the experience economy. For more than 35 years, the company has put people at the heart of its approach to digital business transformation. As the only integrated experience consultancy in the world with a heritage 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 categories such as digital transformation and commerce, experience design, engineering and technology integration, digital marketing, data science, CRM and loyalty, and customer data management. With more than 16,000 employees, Merkle operates in 30+ countries throughout the Americas, EMEA, and APAC.

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Job Description

Are you passionate about designing and developing robust, scalable, and efficient backend systems? Do you thrive in a dynamic environment where you can contribute to architectural decisions and stay updated with industry trends? If so, we have an exciting opportunity for you!

Join our team as a Senior Fullstack Java Developer and be a part of shaping the future of our technology stack.

The role requires a full-time on-site presence for the first 3 months due to the nature of the current project. Afterwards, flexibility is offered, with 1 fixed and 1 flexible remote day per week.

Here are some of the exciting tasks awaiting you:

  • Design and develop robust, scalable, and efficient backend systems and APIs.
  • Design and build service-oriented solutions on Docker and Kubernetes environments.
  • Work with relational databases (e.g., MySQL, PostgreSQL) and optimise queries, schemas and indexes.
  • Create or optimise algorithms for data processing, transformation, and validation.
  • Integrate with other enterprise systems, using industry-standard integration technologies and best practices.
  • Ensure high-quality code that meet security and performance standards
  • Adhere to coding standards, security guidelines, and best practices.
  • Diagnose and resolve complex technical issues promptly. Ensure timely bug fixes and improvements.
  • Conduct thorough code reviews and provide constructive feedback.
  • Propose technical solutions and contribute to architectural decisions.
  • Participate in the enhancement of frontend components.
  • Work closely with cross-functional teams (product owners, other developers) to understand requirements.
  • Stay updated with industry trends, Java advancements, and best practices.
  • Share knowledge within the team and contribute to continuous improvement.


A mix of the following is the person we are looking for:

  • 10+ years of experience in Java development (Java 18+)
  • Strong experience with the Spring framework. Familiarity with Spring Security
  • Experience with reporting libraries (e.g. Jasper) is a plus
  • Proficiency in SQL, PostgreSQL is a plus
  • Experience with HTTP REST APIs and general networking concepts
  • Good knowledge of modern front-end technologies, Angular is a plus
  • Knowledge of Docker; Kubernetes experience preferred
  • Good systems skills (Linux) are a plus
  • Delivery experience within an agile environment using Scrum
  • Familiar with source code management using Git
  • Experience with the Atlassian stack (Jira, Confluence, Bamboo)
  • You are methodological, autonomous, a fast learner and a team player
  • Excellent spoken and written skills in French and/or English
  • EPFL diploma or equivalent

Additional Information

We work with highly motivated people, who support and enrich each other. We live the possibilities of the digital world through home office, meaning you can work anywhere with flexible (annual) working hours. We also value face-to-face exchanges - coffee or tea, biscuits or fruit are all welcomed on board and shared throughout our offices. 

If you ever feel the need to take a break from the digital world, we love to get hands on together and use pens, paper, and whiteboards for brainstorming sessions. Need to clear your head? Hit the foosball table or PlayStation. We can as well benefit from extra time-off for our wellbeing, volunteering activities or important personal matters. For networking and (brain) food, we offer regular exchange formats, like meetings, tech labs and more. Not enough? We are full believers in education and support training, whether it be internally or externally. We support you. 

If you feel inspired by us, we’ll probably be inspired by you. Join us now and apply online to make sure we match each other’s expectations. We value diversity and are committed to creating an inclusive environment. We welcome all qualified candidates - regardless of your gender or background, please indicate your salary expectations and possible entry date. We look forward to hearing from you! 

We value diversity and therefore welcome all applications - regardless of gender, nationality, ethnic and social origin, religion/worldview, disability, age, as well as sexual orientation and identity.  


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