Keystone Solutions is seeking a Senior Fullstack Java Developer for a consultancy mission at a client site. The organization operates in a complex technological environment, combining a historical application landscape with modern components. This role involves participating in a structural transformation of the IT landscape, modernizing architectures, reducing technical debt, adopting Cloud solutions, and ensuring compliance with regulations, including NIS2.
The existing applications cover critical areas such as unemployment regulation, payments, debt management, and financial and accounting processing. Some of these systems rely on legacy technologies, while new Cloud/hybrid architectures are emerging. The architect plays a key role in harmonizing, securing, and aligning these architectures.
As a consultant representing Keystone Solutions, you will carry out the following responsibilities:
Master's degree in Computer Science or equivalent experience.
Very good command of French, Dutch, and English.
Remote work is possible (2 days per week) after 2 weeks of on-site presence.
If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.
Duration: 01/10/2026 - 31/12/2026 3 months • (full time)
Dutch
Level Active knowledge
English
Level Active knowledge
French
Level Active knowledge
At Keystone Solutions, we specialize in bridging technology and talent to deliver a seamless IT experience.
With a focus on efficiency and innovation, we streamline your IT services, ensuring that you can focus on what you do best while we handle the complexities of your IT ecosystem. From strategic planning through to execution, we are your partners in creating a harmonious technological environment that propels your business forward.
Our Services:
- Hyperautomation: Embrace efficiency with Keystone Solutions' hyperautomation. Integrating Al, ML, and RPA, we automate and optimize your business processes, elevating operational excellence and decision-making.
- IT Consulting: Our IT consultancy at Keystone Solutions navigates you through the complexities of technology. We provide strategic insights, from system architecture to digital transformation, fueling your business growth.
- Software Development: Keystone Solutions excels in crafting custom software tailored to your needs. From innovative apps to system integrations, we transform your ideas into dynamic digital solutions.
- IT Security: Secure your digital landscape with Keystone Solutions. We offer comprehensive cybersecurity measures, from risk assessments to incident response, safeguarding your data and operations.
