Cloud Platform Engineer (AWS/Terraform + Python)

Lenstra; Paris; Hybride; EUR 48 000 - 75 000; Plein temps

Avantages offerts par ce poste

Meal vouchers

3 days onsite / 2 remote

Résumé du poste

Lenstra in Paris is seeking a DevOps Engineer (AWS/Terraform) to design, industrialise, and operate a scalable cloud platform that enables teams to deploy applications quickly and safely.

You will build reusable Terraform modules, manage multi‑account AWS environments, and define golden paths for containerized, serverless, and traditional workloads. Strong Python, Terraform, and CI/CD expertise are required, with fluency in English and French.

Qualifications

• 3+ years in DevOps/SRE/Platform Engineering with 2+ years in production cloud work.
• Bachelor's or Master's in CS/Engineering (or equivalent).
• Strong Terraform mastery: modules, state, testing, release.
• Extensive cloud experience: VPC, IAM, EC2/ASG, EKS/ECS, RDS, DynamoDB, S3, Lambda, CloudWatch.
• Python backend development for APIs; full-stack capability when needed.
• CI/CD expertise; Git workflows and reviews.
• Containers with Docker/Kubernetes; Helm, registry, and supply chain security.
• Excellent collaboration; fluent English and French.

Responsabilités

• Design and develop advanced Terraform modules aligned with AWS best practices.
• Evolve a multi-account AWS setup with governance and secure deployment.
• Define infrastructure blueprints for containerized, serverless, and traditional workloads.
• Build and maintain CI/CD pipelines for infra and apps (Jenkins/GitLab CI).
• Implement policy-as-code, security tooling, and automated plan/apply workflows.
• Operate and harden the platform with monitoring, logging, and incident handling.
• Manage Terraform state, module lifecycles, and multi-environment patterns.
• Automate repetitive tasks and contribute to L2/L3 support and post-mortems.

Connaissances

Terraform

AWS

CI/CD

Python

Docker/Kubernetes

Security best practices

English & French

Formation

Bachelor's/Master's in CS/Engineering

Outils

Jenkins

GitLab CI

OPA/Conftest

tfsec

Checkov

Atlantis

Spacelift

Terraform Cloud

Description du poste

Lenstra was founded by passionate computer science engineers with a proven track record of delivering high-quality solutions. By combining technical excellence with a strong vision, we support top-tier clients across industries such as Banking & Insurance, Luxury, and Technology.

Our expertise is structured around four core pillars: Software Development, DevSecOps, Data & AI, and Product. Through a holistic understanding of our clients’ environments, we help them address their most complex challenges—from building robust software and secure cloud platforms to designing data-driven solutions that accelerate business impact.

The role is part of the Platform Engineering team - the core of products delivering by providing a reliable, secure, and scalable cloud platform. As a DevOps Engineer (AWS/Terraform), your mission is to design, industrialise, and operate the platform and tooling that enable teams to build, deploy, and evolve their applications quickly and safely on AWS.

Responsibilities

• Design and develop advanced, reusable Terraform modules (networking, security, compute, data, edge) aligned with robust architectural standards and AWS best practices.
• Evolve a multi-account (AWS Organisations, Control Tower/SCPs, governance, identities) to provide a secure, scalable deployment framework.
• Define infrastructure and application blueprints (“golden paths”) for containerized (EKS/ECS/Fargate), serverless (Lambda), and traditional (EC2/ASG) workloads, including networking, observability, and security.
• Build and maintain CI/CD pipelines for infrastructure and applications (Jenkins/GitLab CI), including testing, policy-as-code (OPA/Conftest), security (tfsec/Checkov), and automated plan/apply (Atlantis/Spacelift/Terraform Cloud).
• Operate and harden the platform: monitoring/alerting/logging/tracing (CloudWatch, OpenTelemetry, Prometheus/Grafana, OpenSearch, Datadog), SLI/SLO definition, capacity management, backups and disaster recovery.
• Secure the environment: least-privilege IAM, KMS, Secrets Manager, patching, secret management (SOPS), IaC/image scanning.
• Manage Terraform at scale: remote state (S3 + DynamoDB locking), versioning strategy, module lifecycle, multi-environment patterns, driftdetection/remediation Identify and automate repetitive tasks (Bash/Python tooling, Terraform automation, or AI copilots) to accelerate deployments and migrations.
• Contribute to L2/L3 support, incident management and post-mortems; produce clear documentation and ensure knowledge transfer.

Qualifications

• Minimum 3 years in DevOps/SRE/Platform Engineering and at least 2 years of hands‑on production experience on cloud.
• Bachelor’s or Master’s degree in Computer Science/Engineering (or equivalent).
• Strong mastery of Terraform: module design, providers, state management, structure and best practices, testing and release.
• Deep cloud computing expertise: VPC/Transit Gateway, IAM, EC2/ASG, EKS/ECS/Fargate, RDS, DynamoDB, S3, ALB/NLB, Route 53, Lambda, CloudWatch, Systems Manager, KMS, Organisations/Control Tower.
• Proficient in Python for backend development: able to design, build, and maintain APIs (not just scripting) — comfortable working full-stack when a tool or platform component calls for it.
• Strong DevOps practices and CI/CD experience; Git, MR/code review.
• Containers and orchestration (Docker, Kubernetes/EKS), packaging (Helm), registry and supply chain security.
• Excellent collaboration skills; ability to translate product needs into simple, robust, secure technical solutions.
• Fluent in English and French.

Benefits

• Salary from 48k to 75k — based on seniority and interview performance, no surprises
• Meal vouchers — 50% covered by Lenstra
• Paris — 3 days onsite /2 remote