• Design and implement a multi-region AWS architecture and lead the development of modular Terraform libraries to automate provisioning across diverse geographies • Architect self-healing infrastructure using advanced cloud load balancing, auto-scaling patterns, and Multi-AZ database topologies to ensure high availability • Modernize CI/CD pipelines and implement Blue/Green and Canary deployment strategies to ensure zero-downtime upgrades for a continuously running global network service • Build comprehensive SRE dashboards and implement intelligent alerting frameworks to detect regional outages or capacity exhaustion before they impact customers • Monitor cloud resource utilization and implement scaling policies that perfectly balance performance requirements with cost-efficiency

• Design, develop, and manage infrastructure using Terraform with AWS services. • Implement and maintain CI/CD pipelines using Jenkins and other tools to enable efficient deployment processes. • Manage AWS resources, including VPC, EC2, IAM, S3, RDS, ECS, and Kubernetes. • Apply 'shift-left' security practices, integrating security into the development lifecycle and enforcing security standards and frameworks. • Build, manage, and orchestrate containers using Docker, ECS, and Kubernetes. • Develop and automate scripts in Python and Shell for operational tasks and infrastructure maintenance. • Implement monitoring tools to ensure system health and performance; optimize infrastructure for cost and efficiency.

• Act as technical lead for DevOps/Platform/Release engineering: set direction, standards, and best practices • Architect and govern end-to-end delivery: infrastructure provisioning, configuration management, CI/CD, release processes, and operations • Design and support Windows-based high availability solutions, with deep ownership of Windows clustering (failover/HA patterns, maintenance, upgrades, troubleshooting) • Lead Linux automation and platform standardization (configuration, patching, hardening, performance tuning) • Own Infrastructure as Code strategy with Terraform (modules, environments, state, governance) • Own automation strategy with Ansible (reusable roles, inventories, secure secrets handling, idempotency) • Build and standardize deployments using Octopus Deploy, GitHub, and Ansible (templates, shared steps, release promotion, rollback) • Design and mature CI/CD pipelines (artifact versioning, approvals, promotion strategy, policy-as-code where applicable) • Establish observability standards using VictoriaMetrics/Prometheus (metrics strategy, alerting, SLO/SLA monitoring, dashboards) • Provide production leadership: incident response, RCA/postmortems, reliability improvements, capacity planning • Mentor engineers, review designs/code, and raise overall engineering quality across teams • Produce and maintain architecture docs, runbooks, and platform roadmaps

• Lead, inspire, and grow a team of 6 SREs with diverse profiles (Infrastructure and Application backgrounds) • Create a unified SRE vision while respecting each profile's specificities and career development needs • Provide coaching and mentorship, including for senior/staff engineers on technical leadership • Manage workload, prioritize and make structured recommendations that will be discussed with Engineering management. • Manage external resources: freelancers and specific expertise as needed • Embody and transmit Yousign's vision, values, and Operating Principles • Drive 90% decommissioning by H1 2026, 100% by EOY 2026 • Define post-migration strategy: resilience (eliminate SPOFs), scalability (support growth), rationalization (observability overhaul) • Drive Platform Engineering vision: IDP/DevHub implementation to reduce cognitive load for product teams • Ensure SLA & SLO for critical B2B trust signature service (thousands of customers, millions of users) • Lead incident management with mature processes (on-call, runbooks, war rooms) • Establish and execute crisis communication plans maintaining trust and transparency • Own Build topics: Automation, CI/CD, technical framing, IDP/DevHub implementation, Developer Experience (self-service, golden paths) • Lead cross-functional initiatives to improve platform efficiency and reliability