Marc MAJEWSKI
IT Consultant at Versusmind- Claim this Profile
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Experience
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Versusmind
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France
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Software Development
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1 - 100 Employee
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IT Consultant
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Aug 2020 - Present
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TALIUM
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France
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IT Services and IT Consulting
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1 - 100 Employee
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Oct 2017 - Present
Implementation of a private blockchain based on Hyperledger Fabric in production; accompanied by caching, monitoring and visualization services:- AWS EC2- Golang (chaincode + microservices | on Raspberry Pi and EC2)- protobuf/JSON (network exchanges)- toml/yaml (config)- bash scripting (network deployment, certificate generation, identity maintenance with LDAP)- InfluxDB / Grafana- containerization via Docker, deployment with Docker Swarm- teamwork, interaction with the client (weekly points)Realization of a proof of concept of diploma storage on the public blockchain Ethereum:- architecture in JAVA, Spring boot, web3j, Factory (design pattern)- CI/CD (Continuous Integration / Deployment)- TDD (Test Driven Development)- interaction with Azure services (Keyvault, Container Registry, WebApp service, HSM)- use of Azure Java SDK- project management, interaction and follow-up with the client (weekly points)Proof of concept of the use of the blockchain for the electronic multi-signature of documents using Hyperledger Fabric- Micro-service architecture (Golang)- Containerized architecture- Setting up a front end (ReactJS)- Project and team managementFeasibility tests of Intel SGX within a production architecture:- Python3- Docker + Kubernetes- SCONE / FortanixRealization of Ethereum Smarts contracts- Solidity- testing in JS (Mocha / Chai)Studies and technology comparisons (Ethereum, Blockchain) and costing Show less
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Mar 2017 - Sep 2017
My mission is to benchmark multiple blockchain solutions with the aim of integrating into a production environment. Technologies studied : - Ethereum -- Parity client, Proof of Authority, private setup- IOTA- Hyperledger Fabric
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Saveurs & Créations
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France
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Food and Beverage Manufacturing
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Project Engineer
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Oct 2015 - Jun 2016
The goal was to continue to design an industrial fish smoking machine. The skills involved were : - Thermodynamics : regulation of the temperature - Fluid mechanics/dynamics : regulation of the air and smoke flows, - Conception : design and 3D-Modelling of the machine, placing of the components, - Automation : choice of the sensors and actuators, Parameterization of the PLC and UI desig- The goal was to continue to design an industrial fish smoking machine. The skills involved were : - Thermodynamics : regulation of the temperature - Fluid mechanics/dynamics : regulation of the air and smoke flows, - Conception : design and 3D-Modelling of the machine, placing of the components, - Automation : choice of the sensors and actuators, Parameterization of the PLC and UI desig-
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Education
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Polytech Nancy
Engineer's degree, Computer Systems Networking and Telecommunications