Senior Infrastructure Engineer (m​/f​/d

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 has been a cloud pioneer for digital transformation of purchasing and finance processes since 2000. The cloud-based software Onventis Buyer is an all-in-one procurement system that helps companies manage their business spending to achieve financial control, efficiency, compliance, and cost savings.

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.

As a Senior Dev Ops 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 C#-based solution with Terraform/Bicep; enforce modular design, state management, and policy guardrails.
• CI/CD & Release Engineering:
  Own and optimize build/test/deploy pipelines (Octopus, Azure Dev Ops/Git Hub 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, runbooks, and patching strategies.
• Mentoring & Enablement:
  Coach engineers on Dev Ops/SRE fundamentals; contribute to standards, reusable templates, and internal documentation.

• 6–10+ years in Dev Ops/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, work spaces, remote state, and policy integration.
• CI/CD:
  Azure Dev Ops and/or Git Hub 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 Power Shell 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/Express Route).
• 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.

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

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 show it with real benefits:

• Flexibility:
  Hybrid work model with modern tools and equipment.
• Mobility:
  Free parking,…