Spezialist Application Services K8s (m/w/d)

Stellenbeschreibung

CGI ist einer der weltweit größten unabhängigen Anbieter von IT- und Geschäftsprozess-Dienstleistungen. Allein in Deutschland sind wir an 25+ Standorten mit rund 4.700 Mitarbeiter:innen vertreten und bieten Dir beste Bedingungen für Deine Karriere in der IT. Als innovatives Unternehmen setzen wir auf die Vernetzung von Systemen und Menschen, die Grundlage für den Erfolg vieler Projekte und Unternehmen. Unsere Kundenprojekte sind überwiegend im Raum Berlin und Köln angesiedelt. Zur Verstärkung unseres Teams suchen wir engagierte und erfahrene (Senior) technischen Applikations-Administrator, der unser Team verstärkt und dazu beiträgt, unsere IT-Systeme effizient zu verwalten und weiterzuentwickeln.

Aufgaben

• Verantwortung für die technische Administration und den Betrieb von Applikationen in einer komplexen IT-Umgebung
• Überwachung und Optimierung der Systemperformance sowie der Verfügbarkeit von Anwendungen
• Implementierung und Pflege von Konfigurationsmanagement-Lösungen (z.B. Ansible) zur Automatisierung von Deployments und Systemkonfigurationen
• Verwaltung und Wartung von Datenbanken (z.B. MongoDB, Oracle) sowie Sicherstellung der Datenintegrität und -sicherheit
• Einrichtung und Pflege von Monitoring-Lösungen (z.B. Grafana, Prometheus, ELK) zur proaktiven Überwachung der Systeme
• Unterstützung bei der Fehlersuche und Problemlösung in Zusammenarbeit mit anderen IT-Abteilungen
• Dokumentation von Systemkonfigurationen, Prozessen und Best Practices

Qualifikation

• Mehrjährige Erfahrung in der technischen Applikationsadministration oder einem verwandten Bereich
• Fundierte Kenntnisse in der Administration von Linux oder Windows basierten IT-Systemen
• Erfahrung im Konfigurationsmanagement, idealerweise mit Tools wie Ansible
• Praktische Kenntnisse in Monitorlösungen wie Grafana, Prometheus oder ELK Erfahrung im Umgang mit Datenbanken wie MongoDB, Oracle oder ähnlichen Technologien
• Sehr gute Fähigkeiten zur Problemlösung sowie ein stark ausgeprägtes analytisches Denkvermögen

Was wir bieten:

• Bei uns findest du Kolleg*innen, mit denen die Zusammenarbeit Spaß macht. Wir begegnen uns offen, duzen uns über alle Positionen hinweg und denken nicht in Hierarchien oder Silos.
• Dank unseres „Metro Market“-Modells kannst du meist dort arbeiten, wo du lebst.
• Du profitierst von flexiblen Arbeitszeiten und hast je nach Kundensituation die Möglichkeit, von zuhause zu arbeiten.
• Einen Teil deines Bruttogehalts kannst du in CGI-Aktien investieren – bis maximal 3 % des Monatsgehalts geben wir für jeden Euro einen weiteren hinzu.
• Außerdem beteiligen wir dich am Unternehmenserfolg: Du erhältst eine Gewinnbeteiligung, die sich nach deiner individuellen Leistung richtet sowie danach, wie wir als Unternehmen unsere finanziellen Ziele erreichen konnten.
• Mit Jobticket und Jobbike fördern wir umweltfreundliche Mobilität. Abhängig von deiner Rolle und Projektsituation sind auch Bahncard oder Elektro-Firmenwagen möglich.
• Sabbatical oder Elternzeit werden unterstützt. Sie sind bei uns kein Karriere-Stopper!
• Wir unterstützen dich, auch wenn es einmal nicht so gut läuft: Du kannst Sonderurlaub nehmen, und unsere Beratungshotline steht dir mit Rat und Tat zur Seite.
• Eine Vielzahl an Events und Freizeitaktivitäten stärkt deine Verbundenheit mit deinen Kolleg*innen.

Together, as owners, let’s turn meaningful insights into action.
1976 gegründet und nach wie vor familiengeführt, ist CGI heute einer der weltweit größten unabhängigen Anbieter von IT und Business Consulting. Ein hohes Maß an Eigenverantwortung, Teamwork, Respekt und Zusammenhalt machen das Arbeiten bei uns besonders. Bei uns kannst du dein volles Potenzial entfalten!

Du darfst dich vom ersten Tag an als Miteigentümer:in von CGI verstehen. Wir lassen unsere Vision gemeinsam Wirklichkeit werden. Wir profitieren von unserem gemeinsamen Erfolg und haben die Möglichkeit und die Verantwortung, die Strategie und Ausrichtung unseres Unternehmens aktiv mitzugestalten.

Deine Arbeit schafft Mehrwert. Du findest innovative Lösungen und stärkst dein Netzwerk aus Kolleg:innen und Kunden. Gleichzeitig hast du Zugang zu globalen Ressourcen, um große Ideen zu verwirklichen, neue Chancen zu nutzen und von der immensen Branchen- und Technologie-Kompetenz zu profitieren.

Du bringst deine Karriere voran, da du in einem Unternehmen arbeitest, das auf Wachstum und Langlebigkeit ausgelegt ist. Du wirst von Führungskräften unterstützt, die deine Gesundheit und Zufriedenheit fördern – und dir Möglichkeiten bieten, deine Fähigkeiten zu vertiefen und deinen Horizont zu erweitern.

Zentso builds and operates CloudToolz, a revenue-critical SaaS platform layered on top of iMIS RiSE association management software, serving clients across the UK, Europe, United States, and Asia Pacific. The platform encompasses workflow automation, form building, CRM, CMS, and payment processing capabilities delivered to organisations in multiple sectors.

We are seeking a motivated IT Infrastructure and Security Engineer to support the global infrastructure and security posture underpinning CloudToolz and Zentso's internal systems. This is a hands-on, junior-to-mid-level role working closely with the IT Infrastructure and Security Lead and the CTO, assisting with day-to-day operations, security tasks, and the ongoing migration toward a containerised, Kubernetes-based deployment model. The successful candidate will be comfortable working across a distributed, multi-region environment, contributing directly to uptime, security, and compliance outcomes for a production platform.

A key part of this role is supporting Zentso's transition to Kubernetes and helping build out an observability practice around Grafana OSS, alongside contributing scripts and small applications that automate and support infrastructure operations.

Tasks

Infrastructure and Platform Operations

• Help manage global infrastructure spanning Windows Server 2022, SQL Server, MongoDB, Redis, and Cloudflare across four regions, supporting the availability, performance, and scalability of the revenue-critical CloudToolz platform.

• Support deployments of new CloudToolz releases (ASP.NET Core, integrating with Dynamics, iMIS, Salesforce, and native CRM/CMS) and contribute to the Kubernetes migration, including cluster operations such as deployments, scaling, network policies, and RBAC.

• Help build and maintain a Grafana OSS observability stack — dashboards, alerting, and integration with metrics, logs, and traces.Assist with DNS, CDN, WAF, and DDoS protection via Cloudflare; monitor system performance and participate in incident response and recovery.

• Maintain documentation, runbooks, and disaster recovery procedures.

• Write shell scripts and small infrastructure-related applications (automation tools, monitoring utilities, internal dashboards) in coordination with the Infrastructure Lead.

Security Operations

• Support identity and access management, endpoint protection, and vulnerability management.

• Help administer policies across Microsoft 365, Bitwarden, Bitdefender GravityZone, and KnowBe4.

• Contribute to GDPR/ISO 27001-aligned data protection policies, security awareness training, phishing simulations, and threat monitoring/response.

IT Systems Administration

• Support Microsoft 365 administration (Exchange Online, SharePoint, Teams, Entra ID) and Salesforce administration within scope.

• Share responsibility for endpoint security and password management configuration.

Strategy and Continuous Improvement

• Provide input on infrastructure scaling, architecture decisions, and the containerisation roadmap.

• Support infrastructure-as-code adoption and automate routine operations using PowerShell, shell scripting, and other languages.

• Contribute to sprint planning for environment-level requirements and participate in on-call rotation.

Requirements

Essential

• 2+ years of experience in IT infrastructure, cloud operations, systems administration, or DevOps.

• Hands-on experience with Windows Server 2022, SQL Server, MongoDB, and Redis in operational contexts.Practical Cloudflare experience (DNS, WAF, CDN, security features).

• Working proficiency in Microsoft 365 administration, including Entra ID, Exchange Online, and SharePoint.

• Hands-on Kubernetes experience: workload deployment, basic cluster operations, networking (ingress, network policies), and RBAC.

• Solid understanding of networking fundamentals (firewalls, VPNs, DNS, access control).

• Working knowledge of GDPR and experience supporting compliance controls.

• Ability to write shell scripts and program in at least one modern language (e.g. Python, Go, C#, JavaScript/TypeScript), with willingness to build small infrastructure-related applications and tools.

• Strong communication skills and ability to work independently within a distributed, multi-time-zone team.

Preferred

• Experience with Grafana OSS, Prometheus, and Loki.

• Familiarity with Docker, containerd, Helm, and kubectl.

• Certifications such as MCSA, CompTIA Security+, CKA, or equivalent.

• Familiarity with ISO 27001 audit/certification processes.

• PowerShell scripting for automation and reporting.

• Exposure to Terraform, Pulumi, Ansible, CI/CD, or GitOps.

• Salesforce administration experience.

Benefits

This is a full-time, permanent position based in Berlin, Germany, offered on a remote-first basis. The CloudToolz platform operates continuously across multiple regions; the role includes on-call and out-of-hours escalation responsibilities.

Salary range:
€55,000 – €75,000 per year

Performance bonus:
Discretionary, based on individual and company performance

Pension:
Employer contribution in line with local requirements

Flexible working:
Remote-first; flexible hours with availability for global coordination

Probation:
6 months

Compensation is commensurate with demonstrable experience and the scope of the role. The range reflects a small-business context while remaining competitive for the Berlin IT market for this level of responsibility.

About Zentso

Zentso is a software company specialising in association management technology. We build and maintain the CloudToolz platform, which extends iMIS RiSE with advanced workflow automation, forms, analytics, CRM, CMS, and payment processing capabilities. Our clients include national professional associations, peak bodies, and member-based organisations across Australia, the UK, and the Asia Pacific region.

We operate as a small, distributed team with a strong emphasis on technical ownership, direct communication, and pragmatic decision-making. The right person for this role will be someone who takes genuine satisfaction in keeping complex systems running reliably and securely, and who can operate with a high degree of autonomy.

Note: Please include a cover letter with your CV explaining why you believe your qualifications and experience make you a strong fit for this position.

Expleo is seeking a Senior Android Payments Developer to lead the development of card acceptance applications on POS devices and play a key role in a legacy modernisation programme. You will design and implement secure, high-performance Android software for payment terminals (including PAX devices), collaborate with QA, product and programme teams, and drive payment certification with major card schemes.

This is a relocation opportunity for anyone open to relocating to Ireland and is fully onsite in Nenagh, Co. Tipperary.
Verantwortlichkeiten

• Android POS Development

• Design and implement Android applications for POS terminals, delivering clean, maintainable Java/Kotlin code for embedded Android/AOSP-based devices.
• Integrate with POS hardware: implement and validate drivers and SDK integrations for card readers, PIN pads, NFC/contactless, EMV readers, printers and peripherals (experience with PAX SDKs expected).
• Implement payment flows: authorisation, settlement, reversal and offline-capable flows; ensure correct handling of EMV, contactless and magnetic stripe scenarios.

• Certification & Compliance

• Prepare artefacts, run test suites and coordinate payment certification activities with card schemes and acquirers (Visa, Mastercard, Amex).
• Address scheme audit findings and remediation promptly.
• Implement secure coding practices and support PCI and terminal security requirements (PCI PTS, EMV kernel considerations).
• Liaise with security and HSM teams on key management interfaces.

• Legacy Transformation

• Migrate and refactor legacy payment codebases to modern architectures (modularisation, services, secure SDKs), preserving backward compatibility and minimising customer impact.

• Performance & Observability

• Profile and optimise application performance, improve startup times and memory usage.
• Add telemetry and diagnostics to aid support and SRE teams.

• Automation & CI/CD

• Build and maintain automated build, test and release pipelines for terminal images and application packages.
• Support automated regression and device farm test runs.

• Collaboration & Mentoring

• Review peers’ code, share knowledge across the team, and work closely with QA leads, programme managers and product owners to align delivery priorities.
• Participate in post-release reviews and drive root-cause analysis for critical incidents.

Qualifikationen

• Bachelor’s degree in Computer Science, Software Engineering, or a related field.

Erforderliche Fähigkeiten

• Strong analytical skills, attention to detail and methodical approach to debugging and problem resolution.
• Effective verbal and written communication; able to prepare technical artefacts for certification and present technical trade-offs to stakeholders.

Erfahrung

• Strong hands-on Android development experience (Java and Kotlin) on embedded/AOSP variants used in POS devices.
• Proven experience with POS device SDKs and hardware integration—experience with PAX devices highly desirable.
• Deep understanding of payment terminal flows, EMV transaction lifecycle, contactless/NFC processing.
• Familiarity with payment scheme certification processes (Visa, Mastercard, Amex).
• Awareness of PCI DSS, PCI PTS and EMV kernel behaviours; understanding of secure key management and HSM interactions.
• Experience with automated testing and CI/CD for mobile/embedded applications.
• Proficient with modern toolchains: Android Studio, Gradle, Git; experience with Jenkins/GitLab CI/Azure DevOps.
• Competence in debugging on physical devices, handling serial/USB/Bluetooth/NFC communications, and analysing logs from constrained environments.
• Experience in the payments domain (e.g. Nexo Standards, EMVCo, PCI/PTS compliance) is highly desirable.

Leistungen
What Expleo Offers To Candidates Relocating To Ireland

• Visa sponsorship, where required
• Relocation allowance, reimbursable once you commence in the role
• End‑to‑end relocation support provided through a trusted third‑party relocation partner

At Expleo, we are committed to providing a competitive salary and substantial benefits offering with unique wellbeing, financial and employee recognition programmes.

We pride ourselves on our diverse and inclusive culture and offer a variety of family friendly policies and enhanced leave to help you achieve a healthy work life balance.

By providing significant learning and development opportunities, we encourage individual growth and success throughout your career with us.

• Collaborative working environment – we stand shoulder to shoulder with our clients and our peers through good times and challenges
• We empower all passionate technology loving professionals by allowing them to expand their skills and take part in inspiring projects
• Expleo Academy - enables you to acquire and develop the right skills by delivering a suite of accredited training courses
• Competitive company benefits such as medical and dental insurance, pension, life assurance, employee wellbeing programme, sports and social events, birthday hampers and much more!
• Always working as one team, our people are not afraid to think big and question the status quo.

“We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age”.

At Expleo, we understand that many people experience impostor syndrome throughout their lifetime, please do not let this discourage you from applying for this role. Our Talent Acquisition Team welcomes all CV’s and will consider your application in line with the values, requirements and role competencies.

Platform Engineer
We're looking for a (Senior) Platform Engineer to own and evolve our infrastructure — with a focus on developer experience and the chance to get hands-on with AI systems.

What You'll Do

• Design and maintain cloud infrastructure on AWS using Terraform
• Own and improve CI/CD pipelines for fast, safe deployments
• Manage and scale Kubernetes clusters
• Improve developer experience — making it easy for teams to ship and debug
• Implement monitoring, logging and alerting for full observability
• Configure and optimise CDN infrastructure

You are

• 8-10 years of experience in DevOps, SRE or platform engineering roles
• Expertise in AWS
• Proficient with Terraform and infrastructure-as-code workflows
• Experienced in building and maintaining CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins or similar)
• Solid understanding of Kubernetes — deployment, networking, scaling and troubleshooting
• Strong sysadmin fundamentals — Linux, networking, storage and configuration management
• Comfortable working with relational databases (PostgreSQL, MySQL) and time series databases (TimescaleDB, Prometheus)
• A clear communicator who works well across engineering and data science teams
• Pragmatic and reliable — you know when to move fast and when to be careful

Nice to have

• Experience supporting ML infrastructure — model deployment, GPU workloads or training pipelines
• Background in CDN configuration (CloudFront, Fastly, Cloudflare)
• Familiarity with streaming data or video processing systems
• Interest in MLOps and bridging the gap between ML research and production

Why this role matters
You'll keep our systems running smoothly and help the team ship with confidence. And if you're curious about ML, you'll get real exposure to production AI systems.

What We Offer
Employee Share Options Program for all permanent employees*

An increasing benefits list: currently includes Urban Sports club and quarterly team retreats.

Be on the forefront in defining what artificial intelligence means in manufacturing

Gain hands-on experience in working in an AI-first software company

Supportive and inclusive culture that values diversity and promotes the advancement of underrepresented groups within the company

Collaborate with a diverse (currently more than 10 nationalities) and talented team, working on cutting-edge projects with real-world impact

Network with professionals and leaders in the field, opening doors to potential future career opportunities

We have a very flat hierarchy, open 360° feedback, and flexible working hours

Ethics⚖: We are committed to developing ethical AI software

Don't meet all the requirements?
Almetra is committed to creating a workplace that is diverse, fair, and inclusive. We encourage candidates from all backgrounds, even if they do not meet every qualification, to submit their application. We firmly believe that having a team with diverse perspectives only strengthens our company and drives innovation. Our commitment also extends to providing an accessible environment for everyone, including those with disabilities. Please let us know if you require any accommodations during the application process or while working with us, and we will do our best to support you.

• Only full-time, permanent roles are eligible for stock options. Part-time roles, contract roles, work-student, internships and freelance roles are not eligible for stock options.

Compensation Range: €70K - €85K