• 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.

• Working across development, operations, and security teams to ensure applications and infrastructure are secure, compliant, and resilient, while maintaining speed and efficiency in deployment. • Lead the evolution of the software delivery lifecycle by embedding security into every stage of the CI/CD pipeline. • Integrate existing automation frameworks with AI-based solutions to improve coverage, reliability, and efficiency. • Ensure that all AI scripts and programs are fully executable on postal-issued laptops within approved security and environment constraints. • Perform Static and Dynamic Application Security Testing (SAST/DAST), integrated into pipelines. • Collaborate with software developers and IT staff to oversee code releases and deployments. • Design and implement scalable cloud architecture using platforms such as AWS, Google Cloud Platform, or Azure. • Manage containerization technologies such as Docker and orchestration tools like Kubernetes. • Utilize Infrastructure as Code (IaC) tools like Ansible for automated provisioning of infrastructure. • Ensure system reliability through monitoring, logging, and alerting using tools like Jenkins and Git. • Develop RESTful APIs and microservices to facilitate communication between applications. • Maintain databases including MySQL, PostgreSQL, Oracle, and Microsoft SQL Server. • Participate in Agile development processes to improve software delivery cycles. • Troubleshoot issues across the application stack from front-end to back-end services. • Manage and secure cloud environments (AWS, Azure, GCP) and containerized workloads (Docker, Kubernetes). • Implement Infrastructure as Code (IaC) with secure configurations using Terraform, Ansible, or CloudFormation. • Monitor and respond to security incidents, leveraging SIEM tools and observability platforms. • Ensure compliance with industry standards and regulations (ISO 27001, NIST, GDPR, HIPAA, PCI DSS). • Provide training and guidance to teams on DevSecOps best practices.

• 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