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Hugo VantighemHV

Hugo Vantighem

Staff Engineer & Distributed Systems Architect

€1,000/day
Montpellier, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Hugo

Distributed Systems Architect & Staff Engineer

Over 10 years of experience in designing, making reliable, and rescuing high-load critical architectures (EDA / Microservices). My focus: transforming complexity and technical debt into highly available and resilient systems.

Leadership & Risk Audit:
I intervene to identify structural breaking points (deadlocks, contention, dual-writes, atomicity flaws) before they impact production. I formalize clear technical paths via ADRs and support teams in raising their engineering standards.

Augmented Engineering & AI:
Pioneer in integrating LLMs into the core of delivery processes. I design RAG architectures connecting business data to AI models, and drastically optimize refactoring and productivity cycles through modern tooling (Cursor, Claude Code).

Expertise & Stack:

Languages: Go (Historical Expertise), Java/Kotlin (Spring Boot)

Data & Messaging: Apache Kafka, CDC, Temporal.io, Event Sourcing, CQRS

Resilience Patterns: Transactional Outbox, Saga, Idempotence, Circuit Breaker

Infra: GCP, Kubernetes
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • OVHCloud
    Tech Lead / Architecture
    TECH
    September 2022 - Today (3 years and 9 months)
    Montpellier, France
    Redesign of the Bare Metal and Network provisioning backend (global critical systems).

    Technical Audit & Risk Analysis: In-depth study of database locking mechanisms. Identification and documentation of critical contention scenarios.

    Solution Design (Target Design): Development of an architectural target based on state machines (Temporal) to transform synchronous workflows into resilient processes.

    Golang Expertise & Patterns: Development of fundamental components using DDD and Hexagonal Architecture to isolate business logic from infrastructure dependencies.

    Quality Support: Lead on complex code reviews and definition of testing strategies (Gherkin/BDD).
    Temporal Domain Driven Design Golang Event-driven architecture
  • Visiperf
    Architect / Golang Tech Lead
    SOFTWARE PUBLISHING
    March 2021 - August 2022 (1 year and 5 months)
    Montpellier, France
    Transformation of a Legacy monolith into a cloud-native event-driven platform.

    Event-Driven Design: Architecture based on Event Sourcing and GCP Pub/Sub for managing sales and payment flows (Stripe).

    Observability: Implementation of latency monitoring and tracing via distributed tracing (Jaeger).

    Cloud Engineering: Full automation of infrastructure via Cloud Build / Cloud Run.
    GCP Golang Stripe Git Event-driven architecture
  • Altran
    Tech Lead / Java Architect
    SOFTWARE PUBLISHING
    May 2018 - March 2021 (2 years and 9 months)
    Montpellier, France
    Orchestration: Design and implementation of Java Spring Boot / Kafka architectures on Kubernetes (Openshift/Rancher).

    Automation: Provisioning of complex environments via Ansible and monitoring via Prometheus.

    AI Innovation: First integration of cognitive services (IBM Watson).
    Apache Kafka Spring boot Elasticsearch OpenShift Jenkins

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Education

  • Information Systems Engineering Degree
    EPSI
    2013

Skill set

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