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Description

With 8 years of experience in application development and deployment, I can assist you with the following missions:

Blockchain:

- DevOps + Blockchain Expertise (Ethereum, Substrate/Polkadot)

- Deployment and monitoring of blockchain nodes

- Deployment and scaling of applications communicating with a blockchain

- Securing keys (e.g., Hashicorp Vault) and validator nodes

DevOps:

- Creation and maintenance of cloud infrastructure (AWS, GCP) with Terraform

- Linux system administration with Ansible

- Application deployment on Kubernetes (EKS, GKE)

- Serverless deployment (Amazon Lambda/ECS, Google Cloud Run/Function)

- Implementation of CI/CD pipelines (Gitlab CI, Jenkins, Github Action)

- Setup and operation of a monitoring stack: logs, metrics, and traces (Grafana, Prometheus, ELK, Loki, Jaeger/Tempo)

Back-end:

- Java / Spring Boot, Node.js, or Python microservices development

- REST, GraphQL, GRPC API development

- Persistence management on relational (PostgresSQL, MySQL) or non-relational (Mongo, Cassandra) databases

- Performance testing (Gatling)

Front-end:

- UI Development (React/Angular)

- E2E Testing (Cypress)

Languages

French
Native or bilingual
English
Native or bilingual
Chinese
Conversational

Workplace preferences

Remote only

Primarily works remotely

Parity Technologies
Devops Engineer
TECH
November 2020 - Today (5 years and 7 months)
Day to day tasks :
Operate and monitor public and test nodes of the Polkadot and Kusama blockchains as well as parachains (eg. Statemint)
Operate and monitor private Ethereum nodes in fully managed networks
Deploy and monitor internal tools and create CI/CD automation leveraging technologies such as Kubernetes, Terraform and Hashicorp Vault
Develop custom tooling and strategies for the successful operations of blockchain nodes

Significant contributions :
Lead the Testnet team responsible for operating Parity’s public-facing (Westend, Rococo) as well as internal Polkadot test networks
Designed a Kubernetes based deployment of Polkadot testnets that can be scaled to 1000 validators
Overhauled the AWS infrastructure of a private Ethereum network operated on behalf of the United Nations World Food Programme (Building Blocks project)
Successfully migrated a production Ethereum blockchain to new infrastructure
Implemented a blockchain disaster recovery process
Migrated blockchain nodes from VM-based to Kubernetes-based deployments
Blockchain Amazon Web Services Terraform Ansible Prometheus GCP Kubernetes
Liquidshare
Site Reliability Engineer
BANKING AND INSURANCE
June 2019 - October 2020 (1 year and 5 months)
Paris, France
- Creation and maintenance of Liquidshare's cloud infrastructure on AWS and GCP with Terraform
- Deployment of the Liquidshare platform in a containerized environment (Docker, Kubernetes, Istio) and management of managed services (PostgreSQL, Kafka)
- Setup of CI/CD (Gitlab, Jenkins, Nexus, build runners)
- Development of "in-house" tools for continuous deployment (Kotlin, Go, Python)
- Operation of an Ethereum blockchain node cluster (Hyperledger Besu)
- Implementation of security best practices including secret management (Hashicorp Vault), encryption at rest and in transit, vulnerability scans, firewalls...
- Setup of a complete monitoring stack (Scalyr, Prometheus, Istio)
AWS Google cloud Terraform Blockchain Kubernetes Vault Prometheus Jenkins Gitlab PostgreSQL
IPPON TECHNOLOGIES
Full-Stack Engineer
DIGITAL AND IT
January 2016 - May 2019 (3 years and 5 months)
Paris, France
Completed 3 one-year assignments for Renault Digital, Tessi Document Services, and Paris Turf on full-stack development projects:
- Spring Boot microservices development
- Angular & React front-end development
- DevOps activities: CI/CD, Kubernetes and Cloud deployment, monitoring
Spring boot JHipster React.js Angular Node.js API Kubernetes PostgreSQL Prometheus Amazon Web Services Cassandra