Site Reliability Engineer - Senior

Worldline; Verwaltungsregion Seeland; Hybrid; CHF 120,000 - 180,000; Full time

Benefits offered by this job

Hybrid working in Switzerland

25 days annual international remote

Public transport allowance

Meal allowance

Employee share participation program

Job summary

Worldline is seeking a Site Reliability Engineer to join the High Availability Frontoffice Platform team in Switzerland. You will work with DBAs, Cloud Engineers and SREs on a major cloud migration and ongoing reliability of 70+ applications in a microservices architecture.

Responsibilities include managing dual infrastructures with GitLab CI, Docker on RHEL, and a cloud-native OpenShift stack, driving automation, and improving service resilience.

Qualifications

• 5+ years hands-on experience in an SRE or DevOps role, supporting production systems.
• Strong knowledge of RHEL/Linux and containerisation (Docker).
• Experience with cloud and container orchestration platforms.
• Infrastructure automation with Ansible, Terraform; deployments with Helm and CI/CD (GitLab CI).
• Experience in highly available production environments, incident response & monitoring.

Responsibilities

• Ensure reliable operation of the HA Platform and 70+ apps in a microservices setup.
• Manage two infrastructures with GitLab CI deployments, Docker/RHEL and OpenShift cloud-native stack.
• Contribute to architecture decisions and automate for consistency, availability, and compliance.
• Support cloud migration of European infra to Worldline private cloud.
• Lead on-call duties and liaise with teams to improve services and infrastructure.

Skills

SRE/DevOps

RHEL/Linux

Docker

OpenShift/Kubernetes

Terraform

Ansible

GitLab CI

Observability

Incident response

English fluency

Tools

Docker

OpenShift

Kubernetes

Terraform

Helm

Job description

Who We Are

Worldline helps businesses of all shapes and sizes to accelerate their growth journey - quickly, simply, and securely. We are the innovators at the heart of the payments technology industry, shaping how the world pays and gets paid. Our technology powers the growth of millions of businesses across 5 continents. And just as we help our customers accelerate their business, we are committed to helping our people accelerate their careers. Together, we shape the evolution.

Who We Are

Worldline helps businesses of all shapes and sizes to accelerate their growth journey - quickly, simply, and securely. We are the innovators at the heart of the payments technology industry, shaping how the world pays and gets paid. Our technology powers the growth of millions of businesses across 5 continents. And just as we help our customers accelerate their business, we are committed to helping our people accelerate their careers. Together, we shape the evolution.

The opportunity

Join our High Availability (HA) Frontoffice Platform team as a Site Reliability Engineer, where you'll work alongside 7 dedicated professionals including DBAs, Cloud Engineers and SREs, working on exciting projects including our major cloud migration.

Day-to-day Responsibilities

• Ensuring the reliable operation of the HA Platform and its 70+ applications running in a microservices-based architecture, across all platform layers including infrastructure, services and applications
• Managing two distinct underlying infrastructures, both leveraging GitLab CI for automated deployments: one based on containerised application components running on redundant RHEL nodes with Docker and Ansible, and one based on a cloud-native stack leveraging OpenShift (Kubernetes), Terraform and Helm
• Contributing to architectural design decisions and changes whilst driving automation across the platform to ensure consistency, availability and compliance
• Contributing to the cloud migration of the European infrastructure, targeting the Worldline private cloud
• Acting as the voice of operations when interacting with business, development teams and infrastructure providers, proposing and leading service, application and infrastructure improvements
• Participating in remunerated on-call duties (3rd level support) throughout the year, ensuring end-to-end operational continuity of both the database infrastructures and the applications they support

Who Are We Looking For

• At least 5 years’ hands-on experience in an SRE or DevOps role, supporting production systems and contributing to complex technical projects.
• Strong knowledge of RHEL/Linux, microservices and containerisation (e.g. Docker), with experience using cloud and container orchestration platforms.
• Practical experience with infrastructure automation and configuration management (e.g. Ansible, Terraform), application deployment with Helm, and CI/CD pipelines such as GitLab CI.
• Experience managing highly available production environments, including incident response, monitoring, troubleshooting and performance optimisation.
• Experience with observability tools, and willingness to help maintain and develop our logging service based on OpenSearch and Grafana/Prometheus.
• Awareness of security best practices and compliance standards; PCI-DSS knowledge is a plus.
• Able to work independently, document work clearly and collaborate effectively with technical teams and external partners, including under pressure.
• Fluent in English; French and/or German is an asset.

Perks & Benefits

• Hybrid working arrangements within Switzerland with flexible working hours
• 25 days annual international remote working opportunities
• Public transport allowance
• Monthly meal allowance
• Additional benefits including family and leisure activity support
• Employee share participation programme with financial stake in company growth

Shape the evolution

We are on an exciting journey towards the next frontiers of payments technology, and we look for big thinkers, people with passion, can-do attitude and a hunger to learn and grow. Here you'll work with ambitious colleagues from around the world, take on unique challenges as a team, and make a real impact on the society. With an empowering culture, strong technology and extensive training opportunities, we help you accelerate your career - wherever you decide to go. Join our global team of 18,000 innovators and shape a tomorrow that is yours to own.

Learn more about life at Worldline at jobs.worldline.com

We are proud to be an Equal Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex, sexual orientation, gender identity, gender expression, age, status as an individual with a disability, or any applicable legally protected characteristics.