Founded in 2020 in Belgium, ATS4IT is part of the Moongy Group, established to strengthen agap2IT’s presence in Europe. Since 2021 we expanded further with the opening of our Danish branch in Copenhagen, and our Spanish brand in Madrid, reinforcing our commitment to being a key player in the European technology landscape. Proximity, transparency, and collaboration define our approach at ATS. We aim to be your trusted partner and the first choice for your technological challenges
Mainframe Developer (Dutch-Speaking)
Location: Brussels, Belgium
Work Model: Hybrid (2–3 days per week on-site)
Duration: Long-term assignment (+1 year)
Languages: Dutch (C1 mínimum) + English (B2 minimum)
Eligibility: Candidates must possess European nationality or a valid work permit for Belgium
NOTE: Due to the high volume of applications received, candidates who do not meet the specified criteria may not be contacted
About the Role
We are looking for an experienced Senior Cobol Developer to reinforce an existing team for a long-term assignment. The consultant must be Dutch-speaking, highly autonomous, and committed to delivering high-quality solutions within an agile environment. This role involves maintaining and enhancing mainframe applications, supporting critical financial processes, and contributing to ongoing development sprints.
Key Skills and Experience
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At least 5 years of proven experience in Cobol programming
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Strong, practical experience with IBM mainframe environments
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Hands-on knowledge of CICS and VSAM
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Experience working with batch processing, job management, and JCL
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Practical use of RDZ for development
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Familiarity with operational tools such as SDSF for monitoring and troubleshooting
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Dutch fluency is mandatory for this role, and professional proficiency in English is expected.
Nice to Have
- A background in financial environments is certainly a plus, though not a strict requirement. What truly matters is your solid experience and confidence working within mainframe ecosystems.
Key Responsibilities
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Work within a classic IBM mainframe environment to ensure the reliability, stability, and performance of both batch and online processes.
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Analyse business and functional requirements, translating them into robust and efficient Cobol solutions.
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Develop new Cobol programs and enhance existing functionalities to support ongoing business needs.
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Provide technical input and contribute to problem-solving during development and maintenance activities.
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Participate actively in sprint ceremonies, taking ownership of assigned tasks and ensuring timely delivery.
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Collaborate closely with colleagues, communicating proactively to support smooth progress within the team.
What We Offer:
- Permanent Contract (CDI) – Long-term stability.
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Attractive salary based on your experience and skills.
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Additional benefits: Meal vouchers and eco-vouchers (electronic), DKV hospitalization insurance, company laptop, holiday allowance, and year-end bonus.
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Vacation: 20 paid leave days + 12 RTT days.
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Free training (technical, behavioral, language) and certifications
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Continuous and personalized career progression support
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Opportunities to work on projects with cutting-edge technologie
At Moongy Group, we stand for equality and diversity. We create a safe and inclusive environment where opportunities are equal for everyone! We do not discriminate based on age, ethnicity, gender, disability, sexual orientation, or any factor other than merit. If you have the skills for the role, we encourage you to apply!
By submitting my CV, I acknowledge that my personal data will be handled by agap2. In fact, agap2, as the controller, will handle my personal data to manage the recruitment process. In particular, the personal data collected by this means will be used for the performance of the pre-contractual procedures necessary for the management of the recruitment process and, specifically, for the following purposes:
- Selection and recruitment;
- Interviews;
- Conclusion of the employment contract;
- Response to business opportunities, among other specific independent purposes that may be appropriately communicated.
I am aware that my personal data may be transmitted to clients, or potential clients, as a response to business opportunities. I am also aware that my personal data will be saved only for the period necessary to fulfill the stated purposes and for a maximum period of four years after the recruitment process has been carried out, and if this is not successful, for the purpose of making new contacts. My personal data will be kept for a longer period where the controller is legally obliged to do so, in particular, for a period of 5 years for the purpose of recording recruitment procedures as required by the Labor Code.
I acknowledge that I can access, at any time, the personal data that concerns me, as well as request its rectification or erasure. When applicable, I may also request limitation of processing and use my right of objection and portability of data. Besides that, I have the right to file a complaint with the National Data Protection Commission. For the exercise of these rights, it is sufficient for me to send the request by sending an email to dpo@agap2.pt.
I declare to be aware and to agree, committing myself to respect the personal data rules defined by the controller.
Our Offers
