Senior Cloud Engineer

About the Position

As Senior Cloud Engineer, you take full ownership of our AWS cloud environment and make sure our SaaS platform stays secure, performant, and resilient as we scale. You modernize and automate our 100% cloud-based infrastructure, using your deep AWS and DevOps expertise. Together with our Platform Team, you drive DevOps best practices across engineering. And you don't just keep systems running: you look for ways to make our infrastructure faster, safer, and more resilient.

Time to grow. Time to thrive.

We are Nmbrs. We build smart business software that removes unnecessary complexity for SMEs and the professionals who support them. Nmbrs brings together four established product organisations - Payroll, Accounting, Invoicing and Reporting - with teams across the Netherlands, Sweden and Portugal.

We are one brand with a shared ambition, while continuing to work from the expertise and strengths of our individual organisations. We join forces where it makes sense, while keeping teams, expertise and decision-making close together.

For this role, you'll join Nmbrs Accounting in Rotterdam, working closely with the colleagues in your local team while being part of the wider Nmbrs organisation.

Responsibilities

• Continuously refine and optimize our AWS infrastructure, with a sharp focus on scalability, maintainability, and security - you don't wait for something to break before improving it.
• Manage, monitor, and scale our Windows, SQL Server, and Linux servers, plus our Kubernetes (EKS) clusters, to keep everything highly available.
• Lead technical infrastructure projects end-to-end - from architecture design and testing to monitoring and security - partnering with product engineering teams on complex architecture needs.
• Collaborate closely with our Platform Team to evaluate, iterate, and roll out DevOps best practices across the wider engineering organisation.

Requirements

• 5+ years of hands-on experience managing production environments on AWS, with deep expertise in core services: networking (VPC, subnets, routing, security groups), EC2/Auto Scaling, S3 storage tiers, and RDS (backup/restore, patching, performance tuning).
• Experience managing Windows Server in a cloud environment, combined with hands-on experience working with relational databases.
• Solid hands-on production experience with Kubernetes (EKS configuration & maintenance), Docker, Helm, and ArgoCD, plus proven experience setting up and maintaining Windows Servers in a public cloud environment.
• Strong proficiency in Infrastructure as Code (Terraform, CloudFormation, Ansible, Chef, or Puppet) and CI/CD pipelines (Azure DevOps or GitHub Actions), with scripting skills in PowerShell, Bash, or Python for deployment, monitoring, and application management.
• Strong written and verbal communication skills in English.
• Comfortable owning infrastructure decisions independently, while treating security and resilience as non-negotiable.

Nice to Have

• Hands-on production experience with CloudFront/CDN, ElastiCache, Lambda, or SQS/SNS.
• Relevant cloud certifications (AWS Solutions Architect, DevOps Engineer, etc.).
• Hands-on experience with cloud infrastructure for AI/ML workloads (e.g. general MLOps principles, vector databases, or data pipelines) and leveraging AI-driven development tools to optimize workflows.

We Offer

• Personal development: A generous training budget, available directly after your probation period, for specialized certifications, courses, and training to solidify your technical expertise.
• Time off and flexibility: 28 vacation days (and the option to buy 5 extra days), plus the possibility of Workation: up to 5 weeks per year of remote work.
• Well-being & focus: Access to lifestyle coaches, healthy lunches, and other initiatives that contribute to your well-being and focus, including the possibility to lease a bike via Lease-a-Bike.
• Financial security: A base salary ranging €6000 - €7500, depending on seniority. Plus attractive benefits, such as full pension coverage.
• Optimal workplace: The best hardware, including a home-office budget to set up your remote workspace.
• Plenty of opportunities: Enjoy the speed and autonomy of an innovative software initiative, backed by the stability, vast resources, and global career network of the Visma Group.
• Team & culture: Participate in team-building days and other Nmbrs events that strengthen the close team spirit in a diverse and international environment.

Application Process

1. Apply: Apply now! We will contact you as soon as possible.
2. Get to know us: Meet us through our Talent Acquisition Team.
3. Technical test: Prepare a test that showcases your skills well.
4. Second interview: Take a technical deep dive with our Cloud Engineer and Software Architect.
5. In-office interview: Meet our People & Culture Manager and Software Development Manager.
6. Offer: If we see a match - you'll receive an offer!