Let’s shape the future of finance - together

At Isabel, we believe that real innovation happens when people and ideas connect

That’s why we’re building more than technology, we’re building an ecosystem.

One where every voice counts, and where your work can truly make a difference.

We’re looking for curious minds and collaborative builders. People who believe success means growing together, learning from each other, and challenging the status quo.

If that sounds like you, keep reading.

As our Multibanking platform is a cornerstone of the corporate financial landscape and rapidly evolving (with new legislation and breakthrough technologies), the challenge for our IT Operations teams is twofold: ensuring applications and infrastructure are robust enough to handle massive transaction volumes, while at the same time maintaining the agility and speed to market of a fintech.

As a Site Reliability Engineer you’ll design, build, and operate the platforms and services that power our workloads. You will work closely with developers and platform engineers, ensuring a reliable, secure, and efficient environment that supports rapid business growth:

• Ensuring availability, performance, and latency of critical services

• Driving scalability and capacity planning initiatives

• Implementing monitoring, observability, and incident response practices

• Leading automation and efficiency improvements across the stack

• Enforcing standardization, resilience, and security by design

• Partnering with product teams to enable fast, reliable delivery

What you’ll do

• Apply a software engineering mindset to operations, bridging the gap between development, SRE teams, and infrastructure.

• Implement, maintain, and support AWS environments across dev, staging, and production.

• Ensure services are automated end-to-end, with strong monitoring, observability, and incident response practices in place.

• Define, prioritize, and follow up on non-functional and reliability requirements with product and feature teams.

• Establish and evolve standards, methodologies, and best practices for cloud-native SRE and GitOps.

• Drive scalability, resilience, and security across AWS-based workloads.

• Participate in a 24/7 on-call rotation every 4–5 weeks to support mission-critical services.

What makes you a great fit

• 5+ years of experience as an SRE or Platform Engineer in AWS environments.

• Strong coding skills for automation, pipelines, and infrastructure as code (Terraform, CloudFormation, Ansible, CI/CD).

• Proven experience running production workloads on AWS.

• Expertise with AWS services: EKS, ECS, Lambda, RDS, S3, VPC, IAM, CloudWatch, Route 53, ALB/NLB, WAF, Security Groups.

• Proven 5+ years of hands-on experience with containerization and orchestration on EKS.

• Solid understanding of observability and monitoring tooling (Prometheus, Grafana, ELK/Opensearch, Datadog, etc.).

• Working knowledge with GitOps tooling (ArgoCD) and CI/CD automation.

• Strong security-first mindset, delivering secure-by-design solutions that meet financial industry standards.

• Knowledge of networking (routing, load balancing, firewalls), storage, and virtualization concepts.

• Proactive and improvement-driven; you challenge the status quo to enhance quality and efficiency.

• Fluent in English (and Dutch or French).

Why join us

At Isabel, we offer more than a job, we offer a place to grow, contribute, and thrive.

• A human-sized Belgian company (250 people) where your ideas and impact matter

• 50% hybrid work, flexible hours, and autonomy to manage your time

• Coaching, training, and tailored development paths for every career stage

• A flat, collaborative structure with real ownership and cross-functional work

• Competitive rewards: Flex Income Plan, annual bonus, insurance, meal vouchers

• A strong engagement culture and inclusive mindset

• Easy mobility options: our MOBI strategy supports flexible, low-footprint commuting, whether by bike, public transport, or electric car

• Professional gatherings that encourage collaboration and networking, as well as fun and purposeful activities led by our BeFun team

• A certified Top Employer with 30 years of tech leadership and ambition

Ready to join us?

Your voice, your vision, and your impact all have a place here.

Let’s shape smarter solutions and a stronger digital economy. Together.