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Yousign is seeking an experienced Head of SRE to lead our Site Reliability Engineering team through a pivotal transformation phase. You will own the technical leadership and people management of a mature 6-person SRE team, driving our infrastructure migration to completion while shaping the future of our Platform organization. This role is critical as we complete our multi-semester infrastructure migration (90% by H1 2026, 100% by EOY 2026) and transition into a phase focused on resilience, scalability, and Platform Engineering excellence.
Job Responsibility:
Team Management and Leadership (40%): 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
Strategic Vision and Planning (25%): Complete infrastructure migration successfully: Drive 90% decommissioning by H1 2026, 100% by EOY 2026
Drive Platform Engineering vision: IDP/DevHub implementation to reduce cognitive load for product teams
Perform long-term capacity planning (1-2 years): project technical, budget, and headcount needs aligned with business growth
Participate in infrastructure strategy, architecture decisions, and technology trade-offs
Drive sovereign cloud strategy (OVH) and non-hyperscaler expertise
Present strategic recommendations to top management with clear business value articulation
Production Management and Crisis Leadership (20%): 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)
Act as credible spokesperson during crises: manage communication with internal teams, Engineering Council, and external customers
Establish and execute crisis communication plans maintaining trust and transparency
Drive blameless post-mortems and continuous improvement culture
Manage on-call organization and team mental load
Proactively identify and mitigate risks
strengthen resilience mechanisms
Implement disaster recovery and business continuity plans
Platform Engineering and DevOps Culture (15%): Drive Platform-as-a-Product mindset: product teams as customers, focus on reducing their cognitive load
Minimize impact on product teams during infrastructure transformations
Own Build topics: Automation, CI/CD, technical framing, IDP/DevHub implementation, Developer Experience (self-service, golden paths)
Own Run topics: Supervision, monitoring, observability rationalization post-migration
Work closely with Engineering Managers to address cross-team needs
Diffuse DevSecOps/SRE culture within Engineering teams
Lead cross-functional initiatives to improve platform efficiency and reliability
Requirements:
Non-hyperscaler infrastructure: Proven experience with sovereign cloud (OVH, Scaleway) or traditional hosting—not just AWS/GCP/Azure with managed services
Critical production management: Real experience managing major incidents with external customer and stakeholder communication during crises
Confirmed management experience: Minimum 3-5 years managing technical teams (5+ people)
SRE transformation experience: Successfully led SRE transformation in a scale-up environment
Diverse profile management: Experience managing teams with different technical backgrounds (Infrastructure + Application, or similar hybrid profiles)
Long-term vision: Ability to project over 6-12 months on technical evolution, budget, and people planning
Crisis communication: Credible spokesperson in high-pressure situations with internal and external stakeholders
Energy and dynamism: Engaging communication style that inspires and motivates teams
Pragmatism over dogma: "Keep it simple" mindset-technology as a means, not an end
Trade-off thinking: Makes pragmatic decisions based on business context, not only theoretical best practices
Systemic improvement culture: Focuses on long-term solutions rather than "hero mode"
What we offer:
Swile card - Lunch Vouchers covered by 50% by Yousign = 10.50€
Alan - Health insurance: Basic coverage at €62.50/month, 50% paid by Yousign
Life and disability insurance: 100% covered by Yousign
Transportation - Hybrid workers get 50% off their public transportation passes
Leeto - Platform with numerous benefits such as discounts on cinema tickets, theme parks, travels, sports, etc.
Moka.care - 4 free therapy/coaching sessions and mental health content
10 RTT days/year
1 charity day per year, learning & development budget, and more