Site Reliability Engineer

The position

Job description

As our Site Reliability Engineer you are responsible for implementing and maintaining scalable infrastructure and systems that ensure the reliability, performance, and security of our production environments. This hands-on position bridges the gap between development and operations, applying software engineering principles to infrastructure and operational challenges. This role involves close collaboration with Development teams, Security teams, and other stakeholders to build and maintain robust systems, implement automation, and support operational excellence through SLOs (Service Level Objectives) and observability. Additionally, you will contribute to incident management, capacity planning, and implementing infrastructure as code practices across the organization.

You will report to the Platform Engineering Manager and you are integrated within the Platform Team.

Key Responsibilities

Technical Leadership & System Design

• Collaborate with Development teams on infrastructure architecture, deployment strategies, and operational requirements.
• Design and implement monitoring, alerting, and observability solutions.
• Contribute to infrastructure as code initiatives and maintain deployment automation pipelines.
• Implement security best practices in context and maintain compliance requirements.
• Design and maintain disaster recovery and backup strategies.

Operational Excellence & Process Implementation

• Contribute to incident response efforts and drive resolution of technical issues.
• Develop and maintain runbooks and documentation for operational procedures.
• Ensure proper logging and monitoring across all systems.
• Increase automation initiatives to reduce manual operations.
• Maintain and improve SRE practices across the organization.

Cross-team Collaboration & Knowledge Sharing

• Work with development teams to implement operational readiness requirements.
• Collaborate with Security teams on infrastructure security measures.
• Provide technical mentorship to developers on operational practices.
• Lead knowledge sharing sessions and documentation efforts.
• Partner with Engineering Managers to improve development workflows and tools.

Benefits @Welcome to the Jungle

• Salary range : €52K - €65K
• 4-day work week after your first month
• 5 weeks of paid vacation
• Flexible remote work
• 75% of Navigo Pass or 20€ monthly sustainable allowance
• Alan health insurance – 66% covered for you and your children, 40% for your partner
• Meal vouchers - Swile Card – €9 per working day, 50% funded by Welcome

Preferred experience

You !

• You have at least 4 years of infrastructure/systems engineering experience and want to maintain a strong hands-on technical focus.
• You’re comfortable:
  • Building and maintaining large-scale distributed systems.
  • Managing incident response according to SLA.
  • Implementing automation and self-healing systems.
  • Developing utility scripts and functions.
  • Working in both French and English, in a remote context.
• It’s not required, but having experience with our tech stack (Ruby, Elixir, React.js) is a significant advantage.
• You have strong problem-solving skills and can troubleshoot complex systems issues.
• You’re reliability-focused: passionate about building resilient systems, measuring and improving reliability through data-driven approaches, and establishing sustainable operational practices.
• You demonstrate excellent communication skills and can effectively collaborate with various technical and non-technical stakeholders.

Learn more about our stack :

• Our main cloud provider is AWS ;
• We use Kubernetes as our container orchestrator ;
• Our Infrastructure-as-Code is managed with Terraform and Terragrunt ;
• We use ArgoCD and CircleCI as our integration and deployment tools ;
• We use OpenTelemetry & Datadog to monitor our platforms ;
• Our applications runs on GNU/Linux systems, like Debian