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Sylvain CombraqueSC

Sylvain Combraque

Cloud engineer | Golang, Docker expert

€700/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sylvain

Leveraging my experience in Go through the creation of a distributed HTTP cache (Souin) used by Caddy, Træfik, and other reverse proxies, I am accustomed to high availability, stability, and ease-of-use challenges.
As a Go architect, I assist you in establishing, maintaining, and optimizing your software and applications.

I intervene on the following points:
- Improving code quality, setting up linters (golangci-lint), writing functional and end-to-end tests to ensure application longevity
- Creating Caddy modules, Træfik plugins, Skipper filters, gin, fiber middlewares
- Performance and security audits of internal tools
- Setting up CI/CD optimized for GoLang (Github Actions, Gitlab CI, Azure pipelines, etc...)

Accustomed to agile, scrum, safe methodologies, I am available for architecture, development, and coaching projects.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • ONEEX
    Go / Infra Architect
    DEFENSE AND MILITARY
    November 2025 - Today (9 months)
    Paris, France
    Creation of a backend in Go to scan identity documents (passport, ID card, driver's license). Use of Tesseract for Optical Character Recognition (OCR), Gin as a web framework, and SQLite for data storage on the device. Creation of a VueJS front-end to provide user feedback during document capture. Implementation of unit, integration, and end-to-end tests with godogs. Monitoring and tracing with Prometheus and Open-telemetry, and notifications on Signal for confidentiality. Use of Docker for local development, deployment using Ansible on machines connected to Tailscale subnets. Management of a team of 4 developers as a Go technical lead.
    Golang Ansible Monitoring OpenTelemetry KYC
  • Freelance
    Go - ReactJS Architect
    TECH
    September 2017 - Today (8 years and 11 months)
    Paris, France
    Audits, developments, coaching, expertise on various technologies. Server management, OpenTelemetry/Grafana monitoring, and Swarm/Kubernetes cluster setup. From simple website creation to pure performance, I help companies create, maintain, and evolve their IS while training various teams.
    HTTP cache React.js Infrastructure Performance Improvement Golang
  • Pour La Gloire
    Webmaster
    ARTS AND CRAFTS
    January 2025 - Today (1 year and 7 months)
    Paris, France
    Realization of the merchandise sales website for the Lille rapper Ben PLG (https://pourlagloire.store). Use of NextJS, utilization of the Bigwax GraphQL API for carts and item retrieval to determine sold-outs and remaining stock by size or combo. Implementation of an internal dashboard including alerting and graphs to track sales using chart.js. Use of native contexts, dispatching native JS events, and integration of the bandsintown API to retrieve concerts. Automatic deployment on Netlify, optimization and caching of assets, implementation of classic webvitals.
    Hugo TailwindCSS Turbo GraphQL Next.js

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Education

  • University Technology Diploma, Computer Science
    University of Reims Champagne-Ardenne
    2017
    Diplôme universitaire de technologies, Informatique

Skill set

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