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Open nowPosted 130 days ago

Software Engineer (HPC & Cloud)

groupeeolen-172175182646 open roles

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Your applicationOpen nowSoftware Engineer (HPC & Cloud)groupeeolen-1721751826

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This job: posted 130 days ago

The posting

Londres · 1 j/sem on-site + remote / Démarrage mi-juin 2026

Contexte

Notre client — éditeur SaaS international — construit une plateforme de calcul distribué GPU-accelerated sur AWS. L'objectif : exécuter des workloads de calcul intensif sur des GPUs partagés en mode service, à grande échelle.

Le projet est 100 % greenfield. Les choix d'architecture sont posés, mais le code distribué n'est pas encore en production. L'équipe SRE centrale gère l'infrastructure sous-jacente — ce rôle consiste à construire le tooling et la couche opérationnelle au-dessus.

C'est un rôle software engineering en premier lieu — observabilité, tooling, cloud ops — avec une dimension HPC. Pas un poste d'infra.

Ce que tu vas construire

Fondations techniques de l'équipe

• Les pipelines CI/CD et environnements de développement pour l'ensemble de l'équipe engineering dès le premier jour

• Le provisioning et la gestion des instances GPU sur AWS (EC2, EKS, IAM, VPC)

• Les outils de benchmarking GPU et de scheduling des runs de performance sur instances cloud

Observabilité de bout en bout

• L'instrumentation complète des services distribués : distributed tracing de bout en bout avec propagation de contexte dans les messages Apache Pulsar, logs structurés, métriques de performance

• Des dashboards de performance sur l'ensemble du cluster et des outils d'analyse comparative entre versions

• Un framework de validation automatique des outputs GPU versus référence CPU (correction numérique)

Contexte distribué dans lequel tu interviens

L'équipe construit des services worker/consumer sur Apache Pulsar, des pipelines de données entre nœuds CPU, nœuds GPU et stockage haute performance (Lustre/FSx), avec des mécanismes de fault tolerance et back-pressure sur des workloads de calcul intensif. Tu opères et instrumentes cette couche — tu n'en es pas le seul auteur, mais tu dois la comprendre en profondeur.

Environnement technique

Apache Pulsar · AWS (EC2, EKS, IAM, VPC) · Kubernetes · Lustre / FSx for Lustre · Go ou Rust · OpenTelemetry / Jaeger · Prometheus / Grafana · CI/CD

Profil recherché

Ce qu'on cherche vraiment :

• Un ingénieur qui a construit du tooling de production pour des systèmes distribués — observabilité, CI/CD, benchmarking — pas uniquement de la configuration d'infra

• Maîtrise de l'observabilité de bout en bout : distributed tracing (Jaeger, OpenTelemetry), métriques, logs structurés

• Capacité à écrire du code robuste en Rust ou équivalent — ce rôle nécessite du software engineering, pas uniquement de l'IaC

• AWS et Kubernetes en production

• Anglais courant — l'équipe est internationale, basée à Londres

Signaux positifs :

• Expérience messaging distribué — Kafka, Pulsar, RabbitMQ, NATS

• Expérience GPU ou HPC : environnements de calcul intensif, benchmarking, stockage haute performance (Lustre, GPFS)

• RDMA ou transport inter-nœuds haute performance

• Rust (un vrai plus)

• Kubernetes Operator ou controller custom en Go

• Contexte scale-up / produit technique : gaming, fintech, SaaS B2B à grande échelle

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