Senior Python Developer

Lengow — France · Posted ~3 weeks ago

Senior

Skills

Python Backend development Software development Data-driven applications SaaS

🔓 Log in to save this job, tailor your resume & track your apply process — 7 days free, no card needed.

Log in to add to target list

Summary ✨ AI‑Generated

A senior Python developer is sought to contribute to a SaaS platform focused on data-driven digital commerce. The role sits within a small autonomous product team and involves building and evolving software for complex business domains. Collaboration with product and engineering leadership and other developers is central to the position.

Highlights

Senior Python engineering role within an autonomous product-team structure. The position offers collaboration with experienced product, data, and engineering professionals while contributing to scalable SaaS and data-driven technology used across international markets.

Description

Lengow is a leader in intelligent e-commerce solutions that help brands and retailers drive profitable growth across the digital shelf. With powerful feed management, global price monitoring, and robust data capabilities, Lengow's comprehensive SaaS product suite enables merchants to amplify product visibility online, outrun competition with informed pricing, multiply sales on marketplaces, and monitor brand presence among distributors. Since 2009, Lengow has fueled digital growth for over 3,600 customers across thousands of marketing and sales channels in over 60 countries. Our Tech Team The Tech, Data, and Product team comprises 70+ people from diverse backgrounds, working in our offices in Nantes, Paris, and Barcelona. Our products are developed thanks to six autonomous product Teams, each working on a specific business domain. The teams are led by a Product Manager and Engineer manager working with a dedicated small team of developers (from 4 to 8) Purpose of the job: We are seeking a highly skilled and experienced Senior Python Developer. The ideal candidate will have extensive experience in Python development, a deep understanding of clean architecture principles, and a strong background in CI/CD practices, particularly using GitHub Actions and ArgoCD. You will play a key role in designing, developing, and maintaining our software applications, ensuring they are scalable, maintainable, and robust. Your main tasks would be as follows : Development: Design, develop, and maintain high-quality Python applications and services Clean Architecture: Implement and advocate for clean architecture principles to ensure a scalable, maintainable, and testable codebase CI/CD Pipeline Management: Design, implement, and maintain CI/CD pipelines using GitHub Actions and ArgoCD to automate workflows, deployments, and infrastructure management Code Review and Mentorship: Conduct code reviews, provide constructive feedback, and mentor junior developers to uphold best practices and coding standards Testing: Develop and maintain unit, integration, and end-to-end tests to ensure software quality and reliability Technical environment: Langage : PythonFramework : Django, Celery, FastAPIDB : PostgreSQL, Redis, AWSOutils : GitHub, Jira, Datadog, Docker, RabbitMQ Hiring process: Phone call with Alexandre our HRInterview with one of our Engineering ManagerTechnical test and restitution with Clément Head of Engineering and members of the tech teamOffer letter Requirements We are looking for someone with the following experiences and skills: Experiences : 4 years as Software developer in Python or other Object oriented programming languageProven ability to integrate AI Agents into the development lifecycle (e.g., automated code reviews, agentic testing, or AI-driven CI/CD) to enhance developer productivity and software quality Skills & soft skills : Python Django, PostgreSQL, Celery, Docker Design & ArchitectureLeadershipCurious / Autonomous / Good analytical skills / Force of proposal / Problem Solver At Lengow, we value diversity in all its forms and are committed to equal opportunities. All applications are considered based on skills and qualifications, including those from candidates with disabilities. Benefits ✨ Joining Lengow is also an opportunity to benefit from many advantages : Ticket restaurant 8 euros by dayMalakoff Humanis Private insurance & Prevoyance3 Remote days per weekFlexible hoursBike mileage allowances or 50% of transportation ticketsRemote allowancesProfessional events (Devoxx, Meetup ...) and regular internal cohesionWeekly Happy Break on Thursday Evening at the office with food and beverageSyntec forfait jours with RTT - 218 annual working days, ie minimum 9 days off on top of 5 weeks legal paid leaveChoose your laptop OS. You can work on MacOS, Windows or Linux