> Markdown version of [/jobs/ext/2726718-software-engineer-corporate-tooling](https://www.wearedevelopers.com/jobs/ext/2726718-software-engineer-corporate-tooling). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - Corporate Tooling - **Company:** Harmattan AI - **Location:** France - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Code Review, Python (Programming Language), Open Source Technology, Software Engineering, Software Coding - **Published:** September 5, 2026 - **Apply:** https://startup.jobs/software-engineer-corporate-tooling-harmattan-ai-8146957 ## About the Role * 4-7+ years of software engineering experience at a fast-paced, tech-forward company. * Strong architectural instincts and proficiency in Python. You have a proven track record of shipping non-trivial systems to production at scale. * Education: Degree from a top-tier engineering school in Software Engineering. * Exposure to MES or manufacturing systems is a plus. We prioritize sharpness and core engineering excellence over specific tool experience. * Highly ambitious, self-driven and looking for ownership. * Excellent written and verbal communication in English and French, capable of leading diverse principals - from junior members to senior executives ; proven ability to collaborate with both technical and non-technical stakeholders. * Commitment: 100% dedication to Harmattan AI's mission, vision, and ambitious growth plans, ready to go the extra mile to ensure operational excellence. ## Description We are looking for a Lead Software Engineer to architect and scale our Manufacturing Execution System (MES). At Harmattan AI, we treat our MES as a core software product, not just any MES, but essential to our factory's traceability, quality, and analytics. As the first senior in-house hire for this module, you will transition from a high-impact Individual Contributor to an Engineering Manager, building a team. You will co-design the architecture with the Head of Corporate Tooling and set the technical standards that will allow us to scale our organization. Responsibilities Architecture & Strategic Ownership * Review and redesign the strategic architecture of the MES custom layer to support high-scale factory operations. * Drive technical improvements across all features, including quality management, automation, and deep integrations. * Establish and enforce technical standards for the broader MES footprint, covering accounting, purchasing, quality and others. Product Development (ERP / MES) * Translate the current subset of ERP open-source manufacturing into a scalable, industrial-grade MES that supports our factory ramp-up. * Hands-on coding (modules, integrations, and code reviews). * Develop a version 2 of the MES for production, designed to be deployed across the factory. Leadership & Team Building * Grow and manage the ERP/MES engineering team. * Audit existing systems and deliver a comprehensive MES roadmap within your first 90 days. * Mentor junior engineers and serve as the technical reference point for operational tooling. Operational Integration * Work closely with stakeholders in Manufacturing, Quality, and Procurement to translate vague operational needs into clean technical specifications. * Collaborate directly with the Head of Manufacturing and Head of Quality to ensure the MES meets rigorous defense-tech standards. * As a vertically integrated industry, we consider our factory as a product. ## Related Videos - [The AI-Ready Stack: Rethinking the Engineering Org of the Future](https://www.wearedevelopers.com/videos/1706-the-ai-ready-stack-rethinking-the-engineering-org-of-the-future) - [Are Code Reviews Worth It? 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What Now? - Lee Faus](https://www.wearedevelopers.com/videos/1759-ai-killed-devops-what-now-lee-faus) ## Related Articles - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Are Software Engineer Wages Being Pushed Down? A Report on Tech Salaries](https://www.wearedevelopers.com/magazine/417-are-software-engineer-wages-being-pushed-down-a-report-on-tech-salaries) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer)