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Leonar

Leonar

www.leonar.app

17 Jobs

2 Employees

About the Company

Leonar helps talent acquisition teams hire with efficiency and speed.

With Leonar, teams can automate and personalize candidate communication, unify all recruiting touchpoints into a single system, and get usable data across the entire hiring process.

Listed Jobs

Company background Company brand
Company Name
Leonar
Job Title
Account Executive/Account Manager - Saas Cybersécurité - Cybersécurité
Job Description
**Account Executive/Account Manager - SaaS Cybersecurity** **Role Summary**: Drive B2B sales of managed cybersecurity solutions for SMEs and IT partners, supporting strategic market expansion across France and international markets. **Expectations**: - 2–5+ years of B2B sales experience in cybersecurity or related tech sectors. **Key Responsibilities**: - Prospect and develop new clients via outreach and partnership. - Analyze client needs, collaborate on tailored sales proposals. - Negotiate contracts and close deals to meet quota targets. - Monitor competitive landscape to refine sales strategies. - Build and maintain relationships with IT partners and distributors. - Manage full sales cycle from initial engagement to contract finalization. - Train and support partners on solution implementation. **Required Skills**: - B2B sales expertise in cybersecurity or technology. - Strong client/partner stakeholder communication. - Cybersecurity solution selling interest and SME-focused focus. - Dynamic, creative, and results-driven with teamwork emphasis. - Technical teaching ability to explain complex solutions clearly. **Required Education & Certifications**: None specified.
Paris, France
On site
13-10-2025
Company background Company brand
Company Name
Leonar
Job Title
CTO / Tech founder
Job Description
Job title CTO / Tech Founder Role Summary Founding technical leader for a revolutionary AI‑driven consumer insights platform. Own end‑to‑end design and delivery of multimodal data pipelines, LLM‑based synthesis, dynamic scoring & clustering, scalable infrastructure, and custom visual interfaces. Shape product vision, architecture, and engineering standards in a high‑growth startup context. Expactations - Deliver a production‑ready system from concept to launch within 12‑18 months. - Set technical vision, architecture, and road‑map aligned with business strategy. - Build and mentor a small but high‑performing engineering team. - Maintain technical excellence, scalability, security, and regulatory compliance. - Foster cross‑functional collaboration with product, design, and business stakeholders. Key Responsibilities - Design & implement multimodal data ingestion (video, audio, text) pipelines. - Develop and fine‑tune LLM engines for structured synthesis and rule‐based insights. - Build dynamic scoring, clustering, and personalization modules for user responses. - Architect and deploy scalable cloud infrastructure (k8s, serverless, CI/CD). - Create custom, high‑impact visual interfaces for internal sharing of insights. - Define coding standards, API contracts, and performance benchmarks. - Lead code reviews, testing strategies, and continuous integration. - Drive product iterations, validating feature impact with real users. Required Skills - 5+ years engineering leadership in AI/ML or data‑driven product companies. - Deep expertise in multimodal data processing (video, audio, NLP). - Experience with LLMs—fine‑tuning, prompt engineering, filtering, and rule integration. - Strong background in clustering, scoring, and recommendation algorithms. - Proficiency in Python, JavaScript/TypeScript, and modern web frameworks (React/Vue). - Distributed systems, Kubernetes, and cloud platform (AWS/GCP/Azure). - DevOps: CI/CD pipelines, containerization, infrastructure as code. - Solid database knowledge (SQL/NoSQL) and data warehousing. - Excellent architectural design, performance optimization, and security practices. Required Education & Certifications - Bachelor’s or Master’s degree in Computer Science, Engineering, Data Science, or related field. - Certifications in cloud platforms (AWS Certified Solutions Architect, GCP Professional Cloud Architect) or ML operations are a plus.
Paris, France
On site
Senior
03-11-2025
Company background Company brand
Company Name
Leonar
Job Title
Senior Fullstack Engineer (web/mobile), AgroTech - H/F -
Job Description
**Job Title:** Senior Full‑Stack Engineer (Web / Mobile) **Role Summary:** Lead development of scalable web and mobile applications for an AgroTech platform, delivering end‑to‑end features from concept through production while ensuring cross‑platform consistency, high performance, and offline‑first functionality. Collaborate closely with product, design, and engineering teams in an agile environment. **Expectations:** - Own feature lifecycle: design, development, testing, deployment, monitoring, and iteration. - Produce clean, maintainable code with pair programming, code reviews, and debt reduction. - Rapidly prototype and ship improvements, measuring impact on user onboarding and performance. - Integrate AI tooling where appropriate to enhance development or QA. **Key Responsibilities:** - Design and implement intuitive, high‑performance interfaces using React and React Native. - Build and maintain robust backend services (Node.js/TypeScript) and APIs (Supabase, Cloudflare Workers). - Implement offline‑first logic, including conflict resolution for low‑connectivity scenarios. - Develop real‑time data flows with PostgreSQL and Supabase Real‑Time. - Collaborate with Lead Engineer on architecture, code quality, and continuous improvement. - Partner with data and AI teams to integrate AI agents and assistive QA. - Participate in agile ceremonies (sprints, retrospectives, planning) and provide estimates. **Required Skills:** - Strong experience in full‑stack development (React, React Native, Node.js, TypeScript). - Proficiency with PostgreSQL, Supabase, and Cloudflare Workers. - Experience in offline‑first architecture and conflict management. - Familiarity with AI tooling for code assistance or QA. - Hands‑on knowledge of CI/CD pipelines and cloud deployment workflows. - Excellent debugging, testing (unit/integration), and performance optimization skills. - Good communication, collaborative mindset, and ability to mentor peers. **Required Education & Certifications:** - Bachelor’s degree (or equivalent) in Computer Science, Software Engineering, or related field. - Relevant certifications (e.g., AWS Certified Developer, TypeScript Specialist) are a plus.
Paris, France
On site
Senior
03-11-2025
Company background Company brand
Company Name
Leonar
Job Title
Front-end développeur senior
Job Description
Job title Senior Front‑End Developer Role Summary Lead the design, development, and optimisation of high‑performance web interfaces for a large medical lab network. Collaborate closely with product, backend, QA, and design teams to implement scalable features such as dynamic charts, video, and chatbots on the “Mon Espace” platform. Own technical decisions, code quality, and maintainability in a senior, high‑stakes environment. Expectations - 7–10 years of professional front‑end experience, ideally within large or international organisations. - Demonstrated expertise in TypeScript and React.js. - Strong command of performance optimisation, accessibility, responsive design and clean‑code principles. - Excellent analytical, autonomous, and collaborative mindset. - Proficiency in English is mandatory. Key Responsibilities - Develop modern, scalable interfaces and contribute to the architectural evolution of the enterprise portal. - Deliver high‑impact UX features (interactive visuals, video, chatbot) with focus on performance and user experience. - Work in close partnership with the Lead Front‑End, Backend, Product, and QA teams to define and ship features. - Make architectural and technical stack decisions, enforce best practices, and mentor junior developers. - Ensure code quality through rigorous testing, code reviews, and adherence to clean‑code standards. Required Skills - Advanced proficiency in JavaScript/TypeScript and the React.js ecosystem. - Experience with state management, routing, and component libraries in complex, high‑traffic applications. - Understanding of performance optimisation techniques (code splitting, lazy loading, memoisation). - Knowledge of accessibility (WCAG), responsive design, and cross‑browser compatibility. - Familiarity with CI/CD pipelines, version control (Git), and automated testing (unit, integration, E2E). - Strong problem‑solving skills and ability to work collaboratively in a senior, cross‑functional team. Required Education & Certifications - Bachelor’s or Master’s degree (Bac+5) in Computer Science, Software Engineering, or equivalent. - Certifications in front‑end technologies or agile development (preferred but not mandatory). ---
Paris, France
On site
Senior
03-11-2025