Junior Platform Engineer

Job Title: Junior Platform Engineer

• Location: LabèClient, France (Hybrid – 2 days in a week)

Job Summary

We are looking for a Junior Platform Engineer with a strong focus on frontend development to join our Platform team. The Platform team is responsible for enabling internal developer teams to self-serve their ability to run and own their code in production by creating standard, reusable components and processes. We treat our platform as a product, where our customers are the internal development teams. Your primary mission will be to strengthen our front-end capabilities by developing and maintaining our internal developer tools, including our Developer Portal, Release Portal, and various internal dashboards. You will work closely with a senior platform engineer and gradually expand your skills to other Platform engineering areas such as backend development, infrastructure automation, and Kubernetes operations. This role offers a unique opportunity to learn Platform Engineering practices while leveraging your frontend expertise to improve developer experience across the organization.

Responsibilities

Frontend Development (Primary Focus - ~60-70%)

• Develop and maintain our internal Developer Portal to provide self-service capabilities for engineering teams

• Build and enhance our Release Portal for managing deployments and releases

• Create intuitive user interfaces and dashboards for internal platform tools

• Implement new features and improve existing ones based on developer feedback

• Work with Vue.js and React to build responsive, performant web applications

• Collaborate with backend engineers to integrate frontend components with APIs and services

• Contribute to the design system and component library for internal tools

• Ensure code quality through testing, code reviews, and following best practices

• Gather requirements from internal developer teams to understand their needs

Platform Engineering Activities (~30-40%)

• Participate in the full lifecycle of platform features: design, development, deployment, and monitoring

• Contribute to backend services development (primarily in Golang and Python)

• Learn and contribute to infrastructure automation using Kubernetes and Terraform

• Participate in on-call rotation to support platform services (with gradual ramp-up)

• Collaborate with the team on CI/CD pipeline improvements

• Help optimize developer workflows and iteration speed

• Participate in sprint planning, demos, and retrospectives

• Document features and create user guides for internal tools

Learning and Growth

• Gradually expand your knowledge of Platform Engineering practices

• Learn infrastructure concepts (Kubernetes, cloud services, networking)

• Develop backend skills with Golang and Python

• Participate in team knowledge sharing sessions

• Evaluate new tools and technologies with the team

Profile

Requirements

• Bachelor's degree in computer engineering or related field

• Minimum 5 years of professional experience in frontend development

• Knowledge in Vue.js (Vue 3, Composition API)

• Experience with TypeScript

• Experience with React is a plus

• Proficiency with frontend build tools (Webpack, Vite) and package managers (yarn, npm)

• Understanding of REST APIs and how to integrate them in frontend applications

• Knowledge of HTML5, CSS3, CSS preprocessors like SCSS or SASS and modern Component frameworks (Vuetify)

• Familiarity with Git and collaborative development workflows

• Basic understanding of backend development concepts

• Strong desire to learn and grow into a full Platform Engineer role

• Excellent problem-solving skills and attention to detail

• Team spirit and good communication skills

• Ability to work autonomously while seeking help when needed

• Proficiency in English (oral and written)

Nice to have

• Experience with testing frameworks (Vitest)

• Basic knowledge of Golang or Python

• Familiarity with Docker and containerization concepts

• Experience with CI/CD tools (GitLab CI, GitHub Actions)

• Understanding of Kubernetes basics

• Experience building internal tools or developer platforms

• Knowledge of design systems and component libraries

• Experience with state management libraries (Vuex, Pinia, Redux)