Gentis
Gentis
Home

JobsMissionsMediaUse cases
You can reach us anytime via
hello@gentis.com

Vacancies

Find your dream job

Websphere senior expert

18/06/2025
Fixed termBelgiumHybrid
Copied to clipboard
Job description

Role Overview: As a Senior IBM WebSphere ND & Liberty Cloud Engineer, you will oversee the management and modernization of a legacy WebSphere ND infrastructure, while serving as a subject matter expert in facilitating migration to the IBM Liberty cloud solution. This position requires a keen focus on delivering robust, scalable solutions and acting as a technology referent within a dynamic, cross-functional team based primarily in Belgium.

  • Infrastructure Management: Maintain and optimize the existing IBM WebSphere ND platform, ensuring its stability and operational excellence across business-critical environments.
  • Cloud Migration: Lead and support the transition of traditional WebSphere applications to IBM Liberty within a private cloud, working alongside architects, infra suppliers, and technology engineers to create a future-proof platform.
  • Team Guidance: Guide and mentor a team of engineers, ensuring the delivery of high-quality support, incident resolution, and implementation in line with the group's technology roadmap and standards.
  • Stakeholder Collaboration: Work closely with internal customers, service providers, and APS production support teams. Facilitate communication and alignment between IT divisions across Belgium and France.
  • Technical Responsibilities: Build, maintain, and monitor environments, focusing on JVM performance, Red Hat Linux administration, Java-based applications, and secure deployments using TLS/SSL.
  • Methodology: Contribute to Agile/Scrum teams; utilize modern CI/CD practices and ITIL processes to ensure high standards of availability, security, and disaster recovery.

Required Experience and Skills:

  • Extensive hands-on expertise in IBM WebSphere ND (traditional BASE) and IBM Liberty (Core, Base), with more than 10 years of relevant experience.
  • Deep proficiency in Java, Apache Tomcat, Red Hat Linux administration, and networking technology.
  • Experience with shell scripting, preferably Bash, as well as infrastructure-as-code tools such as Terraform and Ansible Tower is advantageous.
  • Experience with monitoring, troubleshooting, and performance tuning JVMs in high-availability environments.
  • Familiarity with Agile methodologies, ITIL practices, continuous deployment, disaster recovery, and cloud/containerization paradigms (CaaS).
  • Knowledge of ServiceNow and LDAP administration is a plus.

Working Environment: Hybrid work model (Belgium-based, with travel to France as necessary); collaboration within multinational teams; willingness to work outside standard business hours when required. Professional fluency in English is essential; proficiency in French is recommended, and Dutch is a plus.

Profile description

We are looking for candidates who demonstrate a passion for enterprise technology and thrive as subject matter experts in complex, large-scale infrastructures. The ideal person naturally combines both deep technical expertise and a service-oriented mindset, confidently guiding teams through the management of legacy systems and ambitious migrations towards modern cloud solutions.

  • Expertise & Technical Mastery: We value seasoned professionals with an established track record in managing IBM WebSphere Network Deployment and Liberty environments, especially individuals experienced in leading lifecycle transitions from on-premise to private cloud solutions. A robust background working with Java-based applications, Apache Tomcat, TLS/SSL, and extensive Red Hat Linux administration is essential. Familiarity with related tools such as Terraform, Ansible Tower, and CaaS is highly appreciated.
  • Transversal Collaborators: The right candidate enjoys working cross-functionally, thriving in agile, multinational environments, and building bridges between multiple stakeholders. This includes seamless collaboration with international teams, architects, service providers, and vendor partners to shape and deliver a future-proof platform vision.
  • Leadership & Vision: We seek someone inspiring—capable of mentoring and guiding technology engineers while actively contributing to a roadmap aligned with strategic group objectives. The ideal candidate leads by example, championing reliability, security, and best practices (Agile/Scrum, ITIL, continuous deployment, disaster recovery) while nurturing a strong team spirit.
  • Service Mindset & Commitment: We appreciate individuals who demonstrate reliability, adaptability, and an unrelenting commitment to supporting internal customers and production operations. A willingness to participate in occasional travel and flexible work hours underscores a dedication to service excellence.
  • Communication & Multilingual Skills: Superior communication in English is required for success in this role; proficiency in French is highly valued, and Dutch is a welcome asset, fostering smooth stakeholder exchanges in a multicultural setting.
  • Qualifications: A Master’s degree or equivalent proven expertise, supported by over a decade of hands-on experience in relevant technology domains, is expected.

We are seeking proactive engineers who are driven to learn, enthusiastic about operational excellence, and resilient change agents eager to enable transformative technology journeys within a collaborative and diverse environment.

Job location
We are looking to fill 1 positions.
Copied to clipboard

Similar jobs

ICT
08/07/2025

Développeur Backend Laravel Sénior

En tant que Développeur Backend Laravel Sénior, le poste implique d’être pleinement investi dans la conception, l’implémentation et l’optimisation de la plateforme applicative. Tu t’attacheras à développer de nouvelles fonctionnalités, tout en perfectionnant celles déjà existantes pour garantir une performance optimale.Participer activement au cycle de développement, du découpage du backlog jusqu’aux mises en production en mode sprint.Coder des modules complexes en reliant les problématiques métiers et l’architecture technique.Maintenir et améliorer la qualité du code, et appliquer rigoureusement des tests unitaires et fonctionnels avec PHPUnit.Diffuser et formaliser les bonnes pratiques de développement au sein de l’équipe technique.Interfacer et sécuriser les échanges d’informations à l’aide d’API REST et d’authentification OAuth2.Utiliser la stack technique composée de Laravel/PHP, MySQL, Docker, GitLab CI/CD, Jira et AWS, avec une expertise attendue sur le développement de packages Composer, le stockage de données (ElasticSearch) et l’architecture event sourcing.Collaborer dans un environnement d’intégration et de livraison continue (CI/CD) et sur des problématiques DevOps liées à l’infrastructure cloud et au déploiement.Contribuer à l’évolution technique de l’équipe, tout en participant au maintien d’un environnement de travail convivial et innovant.

Fixed termBelgiumOn site
ICT
07/07/2025

Medior Full-Stack Developer & Tech Lead (NextJS, Supabase, TypeScript)

Functieomschrijving:Bijdragen aan de ontwikkeling van een moderne NextJS-toepassing die gebruikmaakt van Supabase, Deno en TypeScript, met een focus op zowel frontend- als backendwerkzaamheden.Geleidelijk het technisch leiderschap overnemen en de richting bepalen van het project, inclusief het maken van beslissingen over architectuur en technologieën.Verantwoordelijkheid nemen voor de full-stack ontwikkeling, waaronder het ontwerpen, implementeren en onderhouden van microservices en het opzetten van databasemodellen (bij voorkeur PostgreSQL).Binnen een team in Gent (Zwijnaarde) werken, waarvan drie tot vijf dagen per week op kantoor, in nauwe samenwerking met collega’s.Actief communiceren over technische keuzes, vooruitgang en de visie voor het project, zowel in het Nederlands als het Engels.Verantwoordelijkheden:Nieuwe functionaliteiten uitdenken en ontwikkelen voor het platform.Architecturale beslissingen nemen met betrekking tot microservices en schaalbaarheid.Onderhouden en verbeteren van bestaande codebase met TypeScript en JavaScript.Beheren van client-server communicatie en (optioneel) bijdragen aan productmanagementtaken.Zorg dragen voor actuele kennis van recente technische ontwikkelingen.Wij bieden:Een jong, dynamisch team.Flexibiliteit in werktijden en zelfstandigheid in het uitvoeren van taken.Beschikking over een bedrijfs-laptop (MacBook).

Fixed termBelgiumOn site
ICT
07/07/2025

Expert(e) Analyse de Risques Cybersécurité (Mission)

RESA recherche un(e) Expert(e) Analyse de Risques de Cybersécurité pour accompagner la mise en conformité aux directives NIS 2 et Cyber Resilience Act (CRA).Mission d’une durée initiale de 5 mois et demi, renouvelable. Travail partiellement possible en télétravail après une période d’adaptation, avec une présence requise sur le site de Liège au moins 4 jours/semaine.Réalisation et revue d’analyses de risque cybersécurité en conformité avec NIS 2 et CRA, en s’appuyant sur une solide expertise technique.Identification des vulnérabilités techniques, incohérences d’architecture, points de défaillance uniques, faiblesses de redondance et des dispositifs de secours.Analyse des impacts techniques et organisationnels sur les métiers, la continuité d’activité (BCM) et la sécurité de l’information.Formulation de recommandations concrètes visant à renforcer la sécurité, la résilience et le respect des cadres réglementaires applicables.Appui technique transversal pour relier exigences métiers, architectures informatiques, et enjeux de résilience, en binôme avec un spécialiste gouvernance et métier.Les activités quotidiennes comprennent l’évaluation et la gestion des vulnérabilités, la gestion de la sécurité des endpoints, ainsi qu’une participation active aux échanges en français et en anglais pour garantir la robustesse des analyses et des livrables en contexte international.

Fixed termBelgiumHybrid
ICT
07/07/2025

Security Architect – DevSecOps & SSDLC

Position Overview: The Security Architect – DevSecOps & SSDLC plays a critical role in ensuring that security is seamlessly integrated at every stage of the software development lifecycle, from initial design through deployment and ongoing management. This role directly supports a large-scale initiative to enhance data exchange standards and develop a centralized system within a liberalized energy market.Embed Security by Design and Security by Default: Proactively integrate robust security principles and controls from the outset of software design and throughout feature development.Champion Security Across CI/CD: Ensure that security remains a continual focus across the entire CI/CD pipeline as well as the broader software development lifecycle, applying best practices and innovative solutions.Support Compliance and Cyber Resilience: Oversee and maintain compliance with regulatory and industry standards, while ensuring the project’s resilience to cyber risks and threats.Contribute to Strategic Initiatives: Participate in and provide security expertise to initiatives aimed at improving data exchange and creating scalable solutions for the evolving energy sector.Technical Expertise: Apply advanced knowledge in DevSecOps, Secure Software Development Lifecycle (SSDLC), and tools integration—particularly within Azure DevOps and, where relevant, other platforms such as CircleCI, integration or endpoint security solutions.Security Testing and Evaluation: Lead and execute security assessments and integration testing, applying automated tooling to monitor and enhance the security posture of platforms supporting development teams.Advise on Identity & Access Management: Take ownership of identity and access management security aspects for systems, supporting secure architecture decisions and implementations.Required Linguistic Skills: Advanced written and spoken proficiency in English and either French or Dutch; strong knowledge of the second national language is highly desirable.Education: Bachelor’s or Master’s degree preferred.

Fixed termBelgiumHybrid
ICT
04/07/2025

Développeur Back-End JavaScript

Mission : Au sein d’une entreprise innovante spécialisée dans la gestion de fonds d’investissement, le développeur back-end JavaScript intègre une équipe technique dédiée à la création et à l’amélioration continue de plateformes sur mesure. En collaboration quotidienne avec un Business Analyst, il participe activement à la conception et à l’implémentation de nouvelles fonctionnalités tout en élaborant des rapports adaptés aux besoins métiers.Développement de microservices robustes en environnement JavaScript back-end et Go, adaptés à des architectures distribuées.Intégration et gestion de bases de données MongoDB et d’outils de recherche avancés via Elasticsearch.Utilisation d’Azure pour le déploiement et la gestion de l’environnement cloud.Mise en place de flux de données asynchrones avec Kafka pour assurer la fiabilité et la scalabilité du traitement d’informations.Collaboration étroite avec l’équipe technique pour garantir la cohérence du développement et la qualité constante du code.La mission, d’une durée initiale de six mois (avec renouvellement possible), est localisée à Belval puis Kirchberg. Les échanges techniques seront menés en français et en anglais, offrant un contexte international exigeant.

Fixed termLuxembourgOn site
Engineering
02/07/2025

Project Manager – High & Medium Voltage

Day-to-day responsibilities:Manage multiple high and medium voltage projects valued between €500,000 and €10 million, under the guidance of a senior project manager.Oversee projects from the pricing phase—including quotation requests and contract signing—through successful completion and delivery.Coordinate and supervise execution, ensuring safety, quality, financial targets, and timely delivery are met.Prepare project offers, negotiate with clients, suppliers, and subcontractors, and ensure effective contract management.Generate regular financial progress reports for management, identifying risks and opportunities.Lead and guide teams of supervisors and technicians, fostering strong teamwork in daily tasks and project challenges.Collaborate closely with engineering teams to develop appropriate technical concepts for each project.Organize planning meetings with project managers and supervisors to optimize resource deployment.Scope and objectives:Take full ownership of assigned projects within set budgets and deadlines, reporting to senior management.Focus on continual improvement in project control, contract management, and document preparation.Emphasize the use of Microsoft Office 365 and Microsoft Teams for planning, communication, and documentation.Apply advanced risk assessment methods to maintain high project standards.Ensure effective people management and motivational leadership within project teams.Languages required: Excellent Dutch; good French and English.

PermanentBelgiumOn site

The perfect match is only one step away.

Send us your CV directly and we will put you in touch with one of our specialised recruiter who will guide you in the search of your dream job!

Phone number
Phone
Candidates

Testimonials

“The Gentis consultants have always taken a number of factors into account in order to present us with the right candidates. The people we've recruited are still here, and personally I'm very happy with the new additions to the team.”
Joakin / Deputy-AMLCO, PPS
“The outcomes were impressive! Over 3 to 4 years, we’ve closed more than 20 deals. Gentis provides a seamless channel to connect with candidates via various avenues.”
Morgan / HR, CAF
View use cases
Blog

Recruitment articles

15 min read
17 Jan 2025

How to implement your employer brand strategy in 7 steps

Employer branding is a marketing concept that is essential for any company that wants to support its attractiveness and promote loyalty among its talent. While the reasons to build a solid and positive employer brand are clear, you cannot simply wave a magic wand for it to be successful. It requires a series of actions.

10 min read
05 Aug 2024

Essential employer branding trends in 2024

Employer branding has become essential for companies that want to stand out in the war for talent. In 2024, your employer brand should be authentic, embrace diversity and be flexible to attract the best profiles.

15 min read
15 May 2024

Employer branding: 7 mistakes you don’t want to make

Back Market, KPMG, Dassault, Shine… These different sized companies all have a strong employer brand that ensures their attractiveness and loyalty and makes their competitors pale by comparison.

Employer Branding
View all

Join our vibrant community of professionals and discover your potential to make a difference in the world.

Stay up to date with our latest news!