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Loïc PiernasLP

Loïc Piernas

DevOps | Platform Engineer | Automation

€350/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Loïc

I started with software development.
But I quickly realized: to become a solid engineer, I needed a strong foundation in how systems actually work.
So, even before being hired, I asked to join the Unix/Linux team 🐧.
Best decision of my career — it gave me the depth and rigor that still guide me today.


⚙️ System Administration
I worked on infrastructures for multi-billion dollar companies, where availability was critical:
  • Production server maintenance 🖥️
  • Deployment of key services (NTP, repository mirrors, backup agents) 🔧
  • Incident resolution under pressure 🚨
  • This taught me discipline, precision, and unwavering mastery of Linux/Unix systems.

🚀 DevOps & Automation
I then turned to automation:
  • CI/CD Pipelines 🔄
  • Infrastructure as Code with Ansible and Terraform 🏗️
  • Monitoring with Grafana and Prometheus 📊
  • I designed a highly available security service, now used globally 🌍.

I also collaborated with remote teams in France, the United States, Canada, and Mexico 🌎.

💡 Entrepreneurial Side
During my studies, I funded my projects through freelance consulting:
  • Setting up CI systems ⚡
  • Supporting startups with their technical stacks 🧭
  • Developing a fully automated deployment solution for a trading PaaS platform 📈
  • This gave me adaptability and a taste for entrepreneurship.

🌟 What sets me apart
The rigor of large-scale infrastructures + the agility of startups.
I know how to keep systems stable today while designing them to evolve tomorrow.
And I love sharing my knowledge, supporting teams, and ensuring that technology doesn't just work… but works better ✨.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • SitemaBoite
    Founder
    DIGITAL AND IT
    December 2023 - Today (2 years and 6 months)
    Marseille, France
    During my full-time studies 🎓 and my apprenticeship in another city 🏙️, I had to manage a challenge: maintaining two residences simultaneously.
    Rather than opting for a classic student job, I chose to invest my limited free time in freelance consulting 💡.
    This choice not only helped me financially 💶 but also opened doors to the world of startups and small businesses, where agility and pragmatic solutions often matter more than size.
    🔄 Adaptability in Practice

    In this context, I learned to adapt my technical skills to deliver rapid impact.
    I reconciled the rigor of large-scale infrastructures with the changing needs of small teams.
    This gave me a broader perspective on how technology supports businesses of all sizes — and taught me to be both resourceful and adaptable.

    🛠️Missions Accomplished
    • Expert consulting in DevOps and small development projects 🧑‍💻
    • Setting up CI systems to streamline development 🔄
    • Supporting clients in their technological choices to optimize their operations 🧭
    • Developing a fully automated deployment solution for a trading PaaS platform 📈

    👉 This period sharpened my ability to produce results despite constraints, to think like an entrepreneur, and to transform technical expertise into real added value for businesses.
    Cloud computing Infrastructure as Code DevSecOps Rust Bash
  • oXya
    Devops
    DIGITAL AND IT
    January 2023 - September 2025 (2 years and 8 months)
    Valbonne, France
    Moving beyond operations 🔧, I turned to DevOps 🚀 — and that’s where I found room to innovate.
    At oXya, I almost entirely designed, developed, and maintained a highly available security service 🔒, which became a cornerstone of the company’s infrastructure.
    What started as an internal project is now deployed globally 🌍 and actively used by international teams.
    Beyond the technical challenge, I collaborated with a multi-site, remote team spread across France, the United States, and Mexico 🤝 — proving that complex automation can be built and deployed across borders.
    This was a turning point: I was no longer just maintaining systems…
    I was building the backbone of their secure operation.


    *🛠️ Missions & Achievements
    • Design and maintenance of CI/CD pipelines with GitLab CI/CD and AWX/Ansible ⚡
    • Automation of infrastructure provisioning and configuration (Ansible, Terraform) to ensure consistency and scalability 🏗️
    • Creation of monitoring and observability dashboards (Grafana, InfluxDB, Prometheus) for real-time visibility 📊
    • Application and strengthening of modern security practices (OAuth2, JWT, RBAC, secrets management) 🔐
    • Full responsibility for a critical, high-availability security service — from design to deployment and long-term maintenance 🚨
    • Coordination with a distributed team across multiple continents to deploy solutions globally 🌎
    • Participation in setting up the company’s development environment: devcontainers coder, test pipelines, GitLab workflows.
    👉 This phase marked my transition from operations to innovation, showing me the impact of combining automation, security, and teamwork to shape the functioning of large-scale systems.
    Continuous integration Ansible IT-Security Terraform Technical project management
  • oXya
    System administrator
    DIGITAL AND IT
    April 2022 - December 2022 (8 months)
    06560 Valbonne, France
    I started my career managing infrastructures for multi-billion dollar companies 💼, where every system had to function flawlessly.
    An outage wasn't just an inconvenience — it could cost millions 💸.
    Working in this environment taught me early on that reliability, precision, and foresight were non-negotiable.
    Whether maintaining essential services or resolving issues on critical servers 🖥️, I built the foundation of my expertise by operating at scale, under pressure, and with real business impact behind every action.

    🛠️ Missions & Achievements
    • Administration and optimization of Unix/Linux production servers for multinationals subject to strict SLAs 🌍
    • Deployment and maintenance of critical services (NTP servers, repository mirrors, backup agents) 🔧
    • Assisting other administrators with debugging and complex incident resolution, becoming a go-to person in crisis situations 🚨
    • Leading incident responses and root cause analyses, directly improving availability and reducing financial risks 📈
    • Collaborating with DBA, storage, and security teams to deliver infrastructures aligned with business needs and compliance requirements 🤝

    👉 These years provided me with the discipline, resilience, and technical depth that still anchor my work today.
    Linux Virtualization Docker Backup Database administration

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Education

  • IT Engineer
    Institut Mines Télécom - Alès
    2025
    🎓 I studied at the École des Mines d’Alès (EMA) — one of France’s leading Grandes Écoles d’Ingénieurs. EMA’s IT engineering program sits at the crossroads of computer science, systems, and business management, preparing students to face both today’s challenges and tomorrow’s innovations. 📚 What I Studied — The INFRES Track (Informatique & Réseaux) Computer Science & Software Development 💻 Algorithms, programming, and modern software engineering methods. Systems & Networks 🌐 Linux/Unix administration, distributed systems, networking, and cloud infrastructures. Cybersecurity 🔒 Secure architectures, encryption, authentication, and risk management. Engineering Core 📐 Mathematics, and project management — the foundations of rigor and problem-solving. 🧑‍🏫 How I Learned A major strength of EMA is its teaching approach: Most instructors come directly from industry, bringing hands-on expertise and real-world case studies. Others are researchers, exposing students to cutting-edge innovations and emerging technologies. This mix of perspectives created a balance between solid fundamentals and forward-looking innovation. 💼 Beyond the Classroom The program combines academic rigor with industrial immersion: Apprenticeships in real companies 🏢 Hands-on projects tackling real-world challenges ⚡ This dual approach shaped me into an engineer who isn’t just technically skilled, but also adaptable, innovative, and business-aware — able to design, secure, and scale IT systems in both enterprise and startup contexts. 👉 EMA gave me the foundations of rigor, the breadth of technical skills, and the mindset of innovation that have powered every step of my career.
  • Computer Science DUT
    IUT2 Grenoble
    2022
    🎓 I began my studies with a DUT Informatique at IUT2 Grenoble — a two-year, highly selective program in computer science and software engineering. Part of France’s renowned IUT system, it combines academic rigor with hands-on training, giving students both the theory and the practice to thrive in tech. 📚 What I Studied Programming & Software Engineering 💻 Java, C, Python, object-oriented design, full software development lifecycle. Algorithms & Mathematics 📐 Data structures, algorithmic efficiency, logic, discrete math. Databases & Information Systems 🗄️ SQL, relational modeling, normalization, administration. Systems & Networks 🌐 Linux, operating systems, system architecture, TCP/IP networking. Projects & Team Collaboration 🤝 Multiple group projects simulating real-world professional environments. 🔑 What Made It Unique Industry Connection 🏭 Courses taught by both academics and industry professionals, ensuring job-ready skills. Professional Orientation 💼 Internships & applied projects built into the program for real-world experience. Balanced Training ⚖️ Solid theory (algorithms, math, system design) + strong practice (coding, systems, teamwork). 🌟 Reputation & Outcomes The DUT Informatique from Grenoble is well-recognized in France, especially in the Rhône-Alpes region. Graduates are highly employable as junior developers, system administrators, and IT specialists — and many, like me, continue into engineering schools (EMA in my case) to build further on these strong foundations. 👉 My DUT gave me a solid technical base, strong teamwork experience, and the ability to bridge theory with practice — the perfect springboard for my engineering studies and career.

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