Senior Infrastructure Engineer (m/f/d)

About the Position

Senior Infrastructure Engineer (m/f/d)

Stuttgart, GER | Düsseldorf, GER

Full-time | Permanent employee

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Let’s Start with our Story

Every great career begins somewhere, and this one starts here. We are a team that believes in big ideas, bold moves, and the people behind them. This is where you could be part of something exciting!

Onventis is the European Source-to-Pay Intelligence. For more than 25 years, Onventis has supported mid-sized enterprises at six locations in making their procurement and finance processes more sovereign. Through its modular SaaS product portfolio, Onventis connects an end-to-end source-to-pay process with a European operating model in a protected data environment. Today, around 1.2 million users from over 1,000 companies with 4.5 million suppliers process an annual transaction volume of 40 billion euros via the Onventis Network.

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Why This Role Matters

In this role, you will directly shape the functionality, performance, and scalability of our products from an operational perspective. From day one, your contribution will solve operational challenges for our customers and teams.

▶ Watch: Life at Onventis

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Your Role at a Glance

As a Senior DevOps Engineer, you will help us modernize and scale our infrastructure as we transition services from on-prem to Microsoft Azure. You’ll design and build reliable, secure, and cost-efficient platforms.

• Cloud Migrations: Plan and execute the migration of workloads from on-prem to Azure with minimal downtime and clear roll-out plans.
• Design Reliable Platforms: Build highly available, scalable infrastructure leveraging Azure services (e.g., AKS, VMs, Storage, Vault, Azure SQL, and many more).
• Infrastructure as Code: Implement and maintain a Cusing Terraform/Bicep; enforce modular design, state management, and policy guardrails.
• CI/CD & Release Engineering: Own and optimize build/test/deploy pipelines (Octopus, Azure DevOps/GitHub Actions)
• Observability & SRE Practices: Define and shape the future logging & monitoring platform for product related services. Improve telemetry (logs/metrics/traces) and reduce toil via automation.
• Security & Compliance: Implement identity & secrets management platform for secret rotation & secret management.
• Operational Excellence: Improve backup/restore, DR/BCP, capacity planning, run books, and patching strategies.
• Mentoring & Enablement: Coach engineers on DevOps/SRE fundamentals; contribute to standards, reusable templates, and internal documentation.

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Your Experience and Skills

Required Qualifications

• 6–10+ years in DevOps/SRE/Platform Engineering roles with production ownership.
• Cloud expertise across compute, service migration, storage, identity, security, and governance with a strong focus on Kubernetes Platform for Orchestration. Experience with Azure Cloud & AWS cloud is a strong plus.
• IaC mastery: Terraform (preferred) or Bicep; modules, workspaces, remote state, and policy integration.
• CI/CD: Azure DevOps and/or GitHub Actions for multistage deployments, environment strategies, and approvals.
• Containers & Orchestration: K8s and AKS (cluster design, node pools, autoscaling, ingress, service mesh, Kong and Helm).
• Observability: Experience with Azure Monitor, Log Analytics, Application Insights, Prometheus/Grafana, or Open Telemetry.
• Coding, Scripting & Automation: Strong in PowerShell and/or Python; Experience with .NET/C# family and bash familiarity.
• Networking: Solid grasp of VNETs, subnets, peering, routing, load balancing, private endpoints, DNS, and hybrid connectivity (VPN/ExpressRoute)
• Security-first mindset: IAM, RBAC, least privilege, secrets management, image scanning, patching, and vulnerability remediation.
• Windows Server Application Stack: Basic experience with Windows Server Application stack favorable

Optional

• Proven on-prem experience (VMware + NetApp storage, firewalls, AD/DNS, backup)

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Our Commitment to You

Our CORE values bring our varied cultural background and products together and more importantly, ensure how we invest in our people. At Onventis, you can expect a performance-focused culture where your achievements are recognized, your goals are prioritized, and your career accelerates. We offer more than just a job: join the Onventis cloud platform for buyers and suppliers! Our solutions are used by 1.2 million registered users in 21 languages worldwide. We live innovation, support each other, grow together, and we show it with real benefits:

• Flexibility: Hybrid work model with modern tools and equipment
• Mobility: Free parking, Job Ticket, JobRad leasing
• Health & Wellbeing: Urban Sports membership, fresh fruit, drinks, and meal subsidies
• Career Growth: Structured on-boarding, training programs, leadership & language courses
• Culture: Friendly team spirit, clear structures, regular team events & gatherings
• Rewards: Attractive salary package, pension plan plus discounts, referral rewards & sabbatical opportunities

Curious about our departments, recruitment steps, or common questions? Everything you need is on our career’s website.

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About us

Onventis is the European Source-to-Pay Intelligence. For more than 25 years, Onventis has supported mid-sized enterprises at six locations in making their procurement and finance processes more sovereign. Through its modular SaaS product portfolio, Onventis connects an end-to-end source-to-pay process with a European operating model in a protected data environment. This allows procurement and finance departments to maintain full control over data, costs, and processes in compliance with policies and legal requirements. The agent-based AI platform Onventis Onix supports the efficient and transparent use of AI throughout the entire procurement process. Today, around 1.2 million users from over 1,000 companies with 4.5 million suppliers process an annual transaction volume of 40 billion euros via the Onventis Network.