Expert Java Developer / Agile / Scrum Delivery Master

Join Keystone Solutions as a consultant for a long-term mission with our client, a federal, independent administration responsible for assessing international protection requests in line with Belgian, European, and international standards. The program you will support is a major modernization initiative called eDossier, composed of multiple projects with a tight delivery timeline through at least the end of 2028. As a Keystone Solutions consultant, you will operate within the client’s expert team to coordinate, design, and implement secure, robust solutions while ensuring disciplined Scrum/Agile delivery. This is a hands-on role with a strong emphasis on engineering excellence and delivery leadership; it is not a pure lead or pure advisory position, nor an agile coach role.

This position is delivered under Keystone Solutions’ consultancy model. You will work closely with the client’s stakeholders and expert teams, primarily on site, applying Keystone’s consulting practices to drive outcomes. The role requires strong on-site collaboration (minimum three days per week at the client site) to foster team spirit and velocity. Contracts are for a fixed term, immediately terminable, and can be extended based on positive evaluations; the mission is planned to run at least until the end of 2028.

• →Design, develop, manage, and decommission IT solutions within the scope of the team, contributing as a core member of a multidisciplinary, cross-functional squad with a customer-first mindset.
• →Guide the team across the full stack and the overall IT design solution to create secure and robust solutions, bring applications into production, and maintain them in collaboration with peers.
• →Act as Scrum/Agile Delivery Master, contributing to all sprint events (planning, refinements, retrospectives, demos, dailies).
• →Co-create and maintain a medium- and long-term release calendar for multiple initiatives, factoring in external dependencies, short-term focus, and forward-looking projections.
• →Continuously develop your own expertise while gathering, updating, and disseminating knowledge about new tools and practices within the team.
• →Apply strong analytical and problem-solving skills to tackle complex challenges and deliver effective solutions.
• →Communicate effectively with technical and non-technical stakeholders to fully understand and meet project needs.
• →Work independently and proactively while thriving in a collaborative environment.

• Mandatory degree: Higher education in computer science (short or long type) or a civil engineering degree from a recognized European college or university. The diploma must be submitted together with the CV.
• Commitment to continuous learning to stay current with the latest sustainable trends and innovations, focusing on software/solution developments using structured and unstructured data in hybrid cloud environments.
• 10+ years of hands-on experience with API design/definition and development.
• 10+ years of hands-on experience with microservices development and integration.
• 10+ years of hands-on Java SE experience.
• 5+ years of hands-on experience with Java SE 10+.
• 5+ years of hands-on experience as a Scrum/Agile Delivery Master, optionally combined with roles as a Java developer or software architect, in greenfield software projects using APIs, microservices, eventing, and cloud.
• 5+ years of hands-on experience with event-driven architecture and systems (event sourcing and event handling).
• 5+ years of hands-on experience implementing agile frameworks such as SAFe and LeSS.
• 5+ years of hands-on experience with software design (cloud, APIs, microservices, eventing).
• 3+ years of hands-on experience as a Scrum/Agile Delivery Master in cloud-native software projects.
• 3+ years of hands-on experience with Azure DevOps for managing agile software/solution delivery.
• Ability to propose alternative solutions and make recommendations that account for the broader context.
• Excellent listening skills, flexible attitude, and the ability to communicate with both technical and non-technical stakeholders.
• Knowledge and use of Behavioral- or Domain-Driven Design, Development, and Testing is a plus.
• Knowledge of the Angular framework is a plus.
• Not a fit if seeking a pure lead and/or pure advisory function. Emphasis is on hands-on coordination, follow-up, adjustment, design, and implementation.
• On-site collaboration required three days per week; candidates seeking four days of telework are not a match for this mission.

Due to the nature of the responsibilities and the bilingual work environment, an excellent active knowledge of English is required, as well as an excellent knowledge of Dutch and French.

• Based on pre-selection, candidates are invited to an individual interview.
• The interview assesses soft skills, motivation, understanding of the role, required competencies, level of experience and expertise, and language skills.
• Invitations are organized in waves/contingents of up to five candidates. If no candidate is selected in a wave, the next wave is invited. The process repeats until a candidate is selected by the jury.

• Consultancy nature of work: Operate on site at client locations as a Keystone Solutions consultant, embedded with expert teams to drive measurable outcomes.
• Dynamic projects: Tackle diverse, real-world challenges across complex modernization initiatives, expanding your exposure to cutting-edge architectures and delivery practices.
• Turbo-charged learning and development: Access continuous learning opportunities and knowledge sharing, enabling you to master new tools, methods, and patterns while delivering value.
• Ambition skyrocketing within a consultancy framework: Accelerate your career by taking on high-impact responsibilities in varied client engagements, supported by Keystone’s delivery standards.

As a K-Stone, you embody Keystone Solutions’ core values on every engagement: customer-centric collaboration, engineering excellence, integrity in delivery, and continuous improvement. You bring these values to each client project while working hand in hand with stakeholders to deliver secure, robust, and sustainable solutions.

• This mission seeks a Solution Engineer with a Java cloud engineering background and strong, recent experience as a Scrum/Agile Delivery Master. It is not an agile coach role.
• You will join an ongoing initiative, which presents a significant challenge and requires resilience, adaptability, and a positive can-do mindset.
• The team is composed entirely of senior expert profiles; you will collaborate closely with experienced engineers, analysts, and business stakeholders.
• Candidates must be ready to submit their diploma together with their CV during the application process.

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.

Join Keystone Solutions as a consultant for a long-term mission with our client, a federal independent administration dedicated to protecting individuals who face persecution or serious harm if returned to their country of origin. In line with Belgian, European, and international standards, our client examines every application for international protection individually, objectively, and impartially.

Within this administration, a major modernization program is underway, composed of multiple projects with very tight timelines. To continue shaping and delivering this program, our client seeks expert-level profiles who can engage on a temporary basis (fixed-term engagements, immediately terminable, extendable following positive evaluation) through at least the end of 2028. One of the key roles is a Solution Engineer – Scrum/Agile Delivery Master at expert level (10+ years of experience). This is not an agile coach position. The client specifically seeks a solution engineer with a Java cloud engineering background and very strong recent experience as a scrum/agile delivery master. You will step into an ongoing initiative, which presents a significant challenge. You will join a team of highly experienced, competent, and motivated experts.

If you are aligned with the client’s core mission and match the tasks and competencies described below, we encourage you to apply as a Keystone Solutions consultant.

Important on-site expectation: this is not a pure lead or pure advisory-only role. The emphasis is on hands-on coordination, follow-up, adjustment, design, and implementation. Candidates seeking four days of telework will be disappointed: to foster team spirit, the client requires on-site presence three days per week at their Brussels office located near Brussels-Midi station.

• Consultancy nature of work: You will operate on site at the client’s premises as a Keystone Solutions consultant, collaborating daily with stakeholders while benefiting from Keystone’s guidance, tooling, and community.
• Dynamic projects: Tackle a fast-paced program today and, over time, access diverse client engagements across industries and technologies, broadening your impact and experience.
• Turbo-charged learning and development: We champion continuous learning with mentoring, knowledge-sharing, and access to modern engineering and delivery practices that accelerate your growth.
• Ambition skyrocketing: Varied client missions create clear pathways to expand responsibility, impact, and seniority within a consultancy framework.
• Our values in action: Being a K-Stone means living our values—excellence, ownership, integrity, and empathy—at every client site, in every ceremony, design decision, and delivery milestone.

• A higher education degree in computer science (short or long type) or a civil engineering degree from a recognized European college or university is mandatory. Include a copy of your diploma with your CV when applying.
• Commitment to continuous upskilling on sustainable trends and innovations, primarily focusing on software/solution developments leveraging structured and unstructured data in hybrid cloud environments.
• 10 years of hands-on experience in the design/definition and development of APIs.
• 10 years of hands-on experience in the development and integration of microservices.
• 10 years of hands-on Java SE experience.
• 5 years of hands-on experience with Java SE 10+.
• 5 years of hands-on experience as a scrum/agile delivery master, possibly combined with the role of Java developer or software architect, within greenfield software projects using the following technologies: APIs, microservices, eventing, and cloud.
• 5 years of hands-on experience with event-driven architecture and systems (event sourcing and event handling).
• 5 years of hands-on experience implementing agile frameworks such as SAFe and LeSS.
• 5 years of hands-on experience with software design (cloud, API, microservices, eventing).
• 3 years of hands-on experience as a scrum/agile delivery master within cloud-native software projects.
• 3 years of hands-on experience with Azure DevOps to manage agile software/solution delivery.
• Ability to propose alternative solutions and make recommendations on choices to be made, considering the entire context.
• Excellent listening skills, flexibility, and the ability to communicate with both technical and non-technical stakeholders.
• Knowledge and use of Behavioral-Driven or Domain-Driven Design, development, and testing is a plus.
• Knowledge of the Angular framework is a plus.

• Due to the nature of the tasks and bilingual working environment, a very good active knowledge of English is required, as well as a very good knowledge of Dutch and French.

• →Leverage a broad and diverse skill set to design, develop, operate, and decommission IT solutions within your team’s scope.
• →Act as an energetic Solution Engineer with a passion for IT and a positive can-do mindset. Be a core member of a multidisciplinary, cross-functional, customer-driven team.
• →Contribute directly to the team’s goals. Support the client and actively help deliver quality products to end users. Collaborate with other engineers, analysts, and business stakeholders—joint problem-solving, advanced design, and delivery are essential.
• →Understand the full stack and IT solution design to guide the team in designing and developing secure and robust solutions, bringing applications into production, and maintaining them in cooperation with other team members.
• →As scrum master, use your technical expertise and experience to contribute to all sprint events (planning, refinements, retrospectives, demos, daily). Co-create a medium- and long-term release calendar for various initiatives, accounting for external dependencies. Balance near-term focus with forward-looking projections.
• →Continuously develop your expertise while gathering, updating, and disseminating knowledge on new tools and practices within the team.
• →Apply strong analytical and problem-solving skills to tackle complex challenges and deliver effective solutions.
• →Communicate effectively with both technical and non-technical stakeholders to fully understand and meet project needs; collaborate as a strong team player.
• →Work with sufficient maturity to operate independently and proactively when needed.

• Hands-on role with emphasis on coordination, follow-up, adjustment, design, and implementation; not a pure lead or pure advisory-only function.
• Hybrid presence aligned with the client’s policy: on site three days per week in Brussels (near Brussels-Midi station); this is not a four-days-remote position.
• Engagement is planned through at least the end of 2028; fixed-term, immediately terminable, and extendable upon positive evaluation by the client.

• Following a preselection process, candidates may be invited to an individual interview.
• During the interview, soft skills and motivation are assessed alongside role understanding and hard skills (required competencies, experience level, expertise level, language skills).
• Interview invitations occur in waves/contingents of up to five candidates. If no candidate from a wave is selected by the jury, candidates from the next wave are invited. This process repeats until a candidate is selected.
• Please include a copy of your diploma with your application to facilitate screening.

• Blend deep solution engineering in Java/cloud with pragmatic scrum/agile delivery mastery, directly shaping and shipping secure, robust, cloud-native solutions.
• Apply expertise in APIs, microservices, event-driven architectures, and Azure DevOps in a high-stakes public-sector program—then carry those learnings to future client missions with Keystone Solutions.

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.