Site Reliability Engineer (f/m/d)

Worldline; Brussel Hoofdstad; On-site; EUR 70,000 - 100,000; Full time

Job summary

Worldline is seeking a Platform Engineer/SRE to join our team responsible for the Worldline Authorization software suite, including WLP FO. You will ensure system reliability, automate pipelines, and support both on-call and incident response activities across production environments.

We value experts in Linux, databases, Kubernetes, and cloud tooling who can drive improvements in monitoring, incident management, and CI/CD, collaborating with global teams to maintain high service levels.

Qualifications

• Experience administering Linux-based systems.
• Experience with Oracle or PostgreSQL databases.
• Scripting skills in Korn shell and/or Python; Kubernetes experience preferred.
• Solid CI/CD and cloud familiarity (GCP, Terraform, GitLab).
• Strong monitoring with Prometheus and Grafana; incident tooling (PagerDuty).

Responsibilities

• Monitor performance, availability, and reliability of systems and apps, ensuring SLA adherence.
• Maintain the Application Platform and implement monitoring/alerting.
• Participate in incident response and post-mortems; lead outages if needed.
• Drive automation to improve CI/CD pipelines and operations.
• Handle on-call duties and collaborate with cross-functional teams.

Skills

Linux

Oracle DB

Postgres DB

Shell scripting

Python

Kubernetes

ServiceNow

Prometheus

Grafana

PagerDuty

CI/CD

GCP

Terraform

Puppet

GitLab

Networking

Analytical skills

On-call availability

Job description

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 dedicated tribe responsible for the development and services of the Worldline Authorization software suite, "Worldline Pay Front Office" (WLP FO). Our team combines expertise in card payment authorization and switching with components for card management back office solutions and fraud detection.

Day-to-day responsibilities

• Monitor the performance, availability, and reliability of our systems and applications, ensuring adherence to SLAs.
• Ensuring the correct running and maintenance activities of the Application Platform
• Implement and maintain monitoring and alerting systems to proactively identify issues.
• Have a holistic end-to end view on the service: application, underlying infrastructure and other dependencies.
• Release/scripts/packages/libraries installation in production
• Guarantee that the service you are in charge can be installed, configured, changed, and operated I compliance with regulation, security and the expected service levels.
• Improve through automation, the pipeline from development to operations (Ci/CD) and all operations on the service.
• Change request management
• Participate and validate service designs and changes, with the mission to ensure that quality of operations will remain at the proper level.
• Lead incident response efforts during outages or major incidents, coordinating with cross-functional teams to ensure timely resolution.
• Conduct post-mortem analyses to identify root causes and implement corrective actions.
• Availability for on call activities out of business hours – Stand‑by
• Ensure 2nd Line of support for incidents and problem management
• Identify gather and analyze metrics and events from both infrastructure and application to provide capacity planning, performance improvements and incident analysis.
• Performing technical and business monitoring of application platforms through alerting tools (I.e Zabbix, Grafana, PagerDuty, Prometheus)
• Propose application related evolutions to improve service and deliver quality
• Partner with infrastructure provider as the voice of service delivery

Who are we looking for

We look for big thinkers. People who can drive positive change, step up and show what’s next – people with passion, can‑do attitude and a hunger to learn and grow. In practice this means:

• OS: Knowledge/experiences with Linux;
• DB: Knowledge/experiences with Oracle or Postgres DB
• Knowledge/experiences with Korn Shell Scripting, Python, Kubernetes
• Knowledge about ServiceNow tool for ticketing
• Knowledge and experience with monitoring tools like: Prometheus, Grafana, PagerDuty
• Experience on CI/CD, Network management (debugging network issues)
• Cloud oriented: GCP knowledge (other provider knowledge/experiences could be a plus; I.e. AWS)
• Cloud management tools: Terraform, Puppet, Gitlab
• Analytical skills (capable to deep dive into analysis to find solutions), team working, full autonomy, accountability, strong proactivity
• On call duty availability

At Worldline you’ll get the chance to be at the heart of the global payments technology industry and shape how the world pays and gets paid. On top of that, you will also:

• Be part of a company guided by a strong purpose to do good and recognized as top 1% of the most sustainable companies in all sectors worldwide.
• Work with inspiring colleagues and be empowered to learn, grow and accelerate your career

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.

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.

Learn more about life at Worldline at Jobs at Worldline