Frontend Software Engineer - H/F

JOIN MARGOMARGO is a consulting firm specializing in Data, Artificial Intelligence, and Software Engineering. We bring together top experts and focus solely on technically complex missions.Since our inception in 2005, MARGO has maintained a unique positioning to engage in the most stimulating projects in the market and recruit the best talents.Today, we have over 400 employees across Paris, London, and Warsaw, covering six areas of expertise within the banking and financial markets, insurance, energy, industry, and technology sectors.RECRUITMENT CONTEXTWith more than 20 years of uninterrupted growth, our ambition is to accelerate this by strengthening our new team of Practice Managers.You will receive support and guidance from our COO, Raphaël Le Lièvre, who will work with you to define a joint strategy aimed at growing your Practice.The role of the Practice Manager is essential in supporting, retaining, and projecting consultants. It is a challenging position with multiple functions, critical to the growth of the group.YOUR MISSIONS AS A PRACTICE MANAGERYou will be responsible for the Software Engineering Practice, composed of 80 consultants and 3 manager consultants.Your role includes:Management- Manage and enhance the performance and career development of your team.- Support the onboarding of new team members.- Foster a vibrant professional life for consultants.Recruitment- Actively participate in recruiting your team.- Ensure the quality of selection processes from technical validation to the end of recruitment.Delivery- Oversee successful project delivery and client satisfaction.

Join Advens as a Practice Manager specializing in Operational Technology (OT). In this pivotal role, you will lead and oversee our OT practice, ensuring the integration of innovative technological solutions that enhance operational efficiency. Your leadership will drive the strategic direction of our OT initiatives, enabling our clients to navigate the complexities of digital transformation.

JOIN MARGOMARGO is a consulting firm specializing in Data, Artificial Intelligence, and Software Engineering. Bringing together top experts, MARGO focuses exclusively on technically complex missions.Since our inception in 2005, we have chosen a unique positioning to engage in the most stimulating projects in the market and to recruit the best talents.Today, we have over 350 employees spread across Paris, London, and Warsaw, covering six areas of expertise within the banking and financial markets, insurance, energy, industry, and technology sectors.RECRUITMENT CONTEXTWith over 20 years of continuous growth, our ambition is to accelerate this by strengthening our new team of Practice Managers.You will receive support and guidance from our COO, Raphaël Le Lièvre, who will work with you to define a common strategy aimed at expanding your Practice.The role of the Practice Manager is crucial in supporting, retaining, and projecting consultants. This is a challenging position with multiple functions, vital for the growth of the group.YOUR MISSIONS AS A PRACTICE MANAGERYou will take responsibility for the Data & Architecture Practice, consisting of 20 consultants.Your role includes:Management- Manage and develop the performance and careers of your team- Support the onboarding of new team members- Foster the professional life of consultantsRecruitment- Actively participate in the recruitment of your team- Ensure the quality of selection processes from technical validation to the end of recruitmentDelivery- Promote and support the offering and domain of expertise...

Role Overview iliad-free is looking for a Software Development Engineer (F/H) to join its team in Paris. This role focuses on building and improving software that supports the company’s telecommunications services. What You Will Do Design and develop software solutions for iliad-free’s user-facing and internal systems Write, test, and optimize code to improve performance and reliability Collaborate with team members to deliver features that improve user experience Location Paris

Nous recherchons un Infirmier en santé au travail (F/H) passionné par le bien-être des employés et la prévention des risques professionnels. Dans ce rôle, vous serez responsable d'assurer une bonne santé physique et mentale au travail, en fournissant des conseils, des évaluations et des interventions appropriées.Vous travaillerez en étroite collaboration avec les équipes RH pour développer et mettre en œuvre des programmes de santé au travail, tout en participant à des initiatives de sensibilisation et de formation. Ce poste est idéal pour un professionnel soucieux d'améliorer la qualité de vie au travail et de promouvoir un environnement de travail sain.

Join the dynamic technical teams at iad Business Factory, where you will work under the guidance of an Engineering Manager. You will be part of a collaborative squad consisting of developers, Product Owners, Project Managers, Quality Assurance specialists, and designers, all focused on enhancing our Playiad application.Your role will involve developing innovative web-oriented projects as well as evolving and maintaining existing features in a continuous improvement mindset.You will be integrated into the Grow Squad within the MLM Tribe, responsible for core MLM model developments including sponsorship, onboarding, accreditation, real estate training, organizational dynamization (gamification), and genealogical evolution across various geographies. Your primary responsibilities will include:Developing based on concepts established by the technical management (Clean Architecture, TDD, DDD, BDD, etc.),Understanding the business needs of each user story (product culture),Ensuring high quality in deliverables through test-driven development,Engaging in self-directed learning and staying updated on technologies and best practices,Adopting a straightforward and pragmatic approach to development,Collaborating closely with your product family members,Ensuring the reliable operation of applications in production ("You build it, you run it"),Adhering to software craftsmanship principles and XP practices. Technical stack:Development: PHP, SymfonyDatabases: PostgreSQL, MySQLInfrastructure as Code: Terraform, AnsibleAWS: EC2/ECS, RDS/Aurora, Lambda/Step Functions, API GatewayCommunication systems: RabbitMQ, AWS SQS, SNSLinux environment, Shell scripting, Cron jobs, etc.CI/CD tools: GitHub, Docker, GitHub Actions, Jira, Confluence

Join Believe as an Engineering Manager, where you will lead a talented team of engineers in driving innovative projects. You will be responsible for overseeing engineering processes, ensuring the delivery of high-quality software solutions, and fostering a collaborative environment.As an Engineering Manager, you will collaborate with cross-functional teams to define project roadmaps, set priorities, and mentor team members to achieve their professional goals. Your leadership will be crucial in aligning technical solutions with business objectives.

Ubisoft Entertainment S.A. seeks a Software Engineer (MLOps) to join its Paris team. This position centers on improving machine learning operations that help shape and enhance gaming experiences. Main responsibilities Collaborate with teams from different disciplines to build and maintain solutions supporting machine learning workflows. Work on optimizing and streamlining the deployment and management of machine learning models. Apply technical expertise to support ongoing development and drive innovation in MLOps practices. Location This role is based in Paris.

Who Are We?Safran.AI, formerly known as Preligens, is a subsidiary of Safran Electronics & Defense, specializing in cutting-edge artificial intelligence solutions for analyzing high-resolution satellite imagery, full motion video (FMV) streams, and acoustic signals. Our innovative technologies are utilized in the aerospace, defense, and government sectors.Since our inception in 2016, we have been developing complex algorithms and software to automatically analyze, detect, and identify military-relevant objects from commercial and governmental data sources.As part of Safran since September 2024, Safran.AI is also playing a pivotal role in the group's transformation by applying AI solutions to the realm of Industry 4.0. For example, automated image analysis can assist inspectors in identifying potential anomalies in critical components through digital imaging.At Safran.AI, innovation and the mission to create a safer world are at the heart of our operations. By joining our team, you will collaborate with passionate and multidisciplinary teams (engineers, researchers, developers) among the most talented in the industry, all driven by a shared passion for technological excellence. We provide a stimulating work environment that encourages creativity and initiative, where every idea is valued. Your Mission, Should You Choose to Accept ItReporting to the Software Product Line Manager, the Software Product Manager is a key player within the product function at Safran.AI. You will define the strategy, develop, and implement software solutions. Collaborating closely with AI and Software engineering teams, as well as commercial and market teams, you will transform strategic vision into actionable roadmaps. You will frame and define product specifications, prioritize the implementation of new features, and ensure that products deliver genuine value to users and the organization. You will serve as the custodian of the strategic vision and actively participate in its development alongside the Product Line Manager.

About Us Safran.AI, formerly known as Preligens, is a subsidiary of Safran Electronics & Defense, specializing in artificial intelligence solutions for analyzing high-resolution satellite imagery, full motion video (FMV) streams, and acoustic signals. Our innovative solutions are implemented in the aerospace, defense, and governmental sectors. Since 2016, our company has been developing sophisticated algorithms and software that automatically analyze, detect, and identify military-relevant objects from both commercial and governmental data sources. Following our integration into Safran in September 2024, Safran.AI is also playing a pivotal role in the group’s transformation by applying AI solutions to Industry 4.0 sectors. For example, automated image analysis through AI aids inspectors in identifying potential anomalies in critical components from digital images. At Safran.AI, innovation and the creation of a safer world are at the core of our mission. By joining us, you will collaborate with passionate, multidisciplinary teams (engineers, researchers, developers) among the industry's most talented professionals, all driven by a shared commitment to technological excellence. We provide a stimulating work environment where creativity and initiative are encouraged, and every idea matters. Your Mission, Should You Choose to Accept It As part of Project Robin, an innovative solution for monitoring strategic sites via satellite imagery and AI, already in production with several clients, you will join a team of 7 developers. Together, you will focus on evolving various backend modules with strong scalability and modularization challenges (data pipeline, database, API, orchestration, deployment). Note: The ability to obtain a Defense clearance is mandatory for this position. As a Senior Software Engineer, you will play a central role in bringing your technical expertise to the design, development, and implementation of our complex software solutions. Your responsibilities will include:→ Maintaining and evolving web applications (Python/FastAPI and JavaScript/React).→ Designing, developing, and maintaining our backend infrastructure and automated pipelines (Python, Airflow, PostgreSQL).→ Collaborating closely with all teams and subject matter experts to understand end-user needs.

Join the Ubisoft AI Initiatives team and help architect the future of information lifecycle management at Ubisoft. From advanced hybrid search pipelines to sophisticated agentic reasoning capabilities, we create tools that transform raw data into swift, informed decision-making. If you are eager to push the boundaries of collaboration between humans and AI to tackle complex challenges, this position is perfect for you.We are seeking an experienced Senior Software Engineer to become a vital member of our team focused on developing scalable back-end systems that power these cutting-edge AI applications.ResponsibilitiesAs a Senior Software Engineer – AI Applications, you will play a crucial role in designing and building essential services that enable our solutions. You will work at the intersection of AI, enterprise cloud applications, large-scale data processing, and cloud infrastructure, with numerous opportunities for growth and impact. This role requires a solid understanding of modern architectures, AI/ML integration, and a genuine passion for solving complex problems.Architect and develop back-end systems: Design and implement high-performing, scalable back-end services to support AI applications.Optimize performance: Ensure low-latency serving and high throughput for AI models, agents, and APIs while optimizing speed and reliability.Collaborate with teams: Partner with data scientists and ML engineers to integrate advanced AI models and agents into production, ensuring smooth deployment and monitoring.Cloud infrastructure: Build and maintain cloud-native solutions using platforms like AWS or Azure, focusing on scalability, security, and cost management.Technical leadership: Mentor junior engineers, conduct code reviews, and contribute to the team’s overall technical strategy.Technology watch: Stay updated on the latest trends in AI, cloud computing, and engineering, and propose innovative ideas.Joining our team as a Senior Software Engineer – AI Applications offers a unique opportunity to work on cutting-edge projects that shape the future of AI technology. You will have the chance to:Engage in continuous learning to stay at the forefront of AI advancements.Take on more responsibilities and influence the strategic direction of our AI products while contributing to high-impact innovation.

About UsAt MARGO, our consultants focus on what truly matters: intricate projects that combine intellectual challenges with real business impact. We partner with leading players in finance, industry, and technology to design and develop high-performance software solutions, including distributed architectures, cloud platforms, real-time systems, and large-scale critical applications.Why Join the Software Engineering Practice?You will be part of a team led by Paul Blois, our Practice Manager for the past five years. Collaborating with him means benefiting from his in-depth knowledge of the firm, receiving close mentorship for your personal development, and contributing to demanding IT projects that have a significant impact on our clients.Your ResponsibilitiesJoin an international team of electronic trading experts dedicated to developing high-performance market solutions. Your tasks will include:- Designing and enhancing trading bots capable of executing complex real-time strategies.- Optimizing performance (latency, multithreading) and managing high data volumes.- Ensuring robust C# code, adhering to SOLID principles, with testing and code reviews.- Contributing to the management of Cloud infrastructures (Azure) and data security.Candidate ProfileWe are looking for a C# developer passionate about real-time systems and interested in market finance, eager to thrive in complex, high-performance environments.- Educational background: Master’s degree (engineering school or university).- Strong skills in C#, multithreading, performance optimization, and best development practices (SOLID, unit testing).- Experience in developing critical systems, processing real-time data streams; experience in finance is a plus.- Ability to solve complex technical problems and collaborate with multidisciplinary teams.- Enthusiasm for demanding environments.

About UsAt MARGO, our consultants focus on what truly matters: tackling complex projects that combine intellectual challenges with real business impact.This is why we support leading players in finance, industry, and technology on their most strategic projects in Data Science, Machine Learning, and Artificial Intelligence.Why Join the AI Practice?You will be part of a team led by Hamza Bouanani, the AI Practice Manager at MARGO, and Lead Data Scientist at BNP Paribas.Working alongside him means joining a team of passionate experts, being technically and methodologically challenged, and contributing to high-impact projects for clients.Your ResponsibilitiesWe are seeking a Machine Learning Engineer to join our teams and engage at the heart of our clients' Data strategies (Industry, Finance, Energy). Your primary objective will be to industrialize Machine Learning algorithms and ensure their production lifecycle.You will operate on three major technical axes:1. Industrialization & Deployment (Model Serving)- Transforming research models (Proof of Concept) into robust, tested, and optimized production code.- Developing high-performance APIs (FastAPI, Flask) to expose models to business applications.- Containerizing solutions (Docker) and orchestrating on clusters (Kubernetes) to ensure scalability and high availability.2. MLOps Architecture & Automation- Designing and maintaining CI/CD pipelines dedicated to Machine Learning (automated retraining, model validation).- Implementing and managing data flow orchestration tools (Airflow, Kubeflow, Dagster).- Managing versioning of data and models (DVC, MLflow) to ensure reproducibility of experiments.

Join our dynamic team at myjobcompany1 as a Test Engineer (H/F) in the vibrant city of Paris! We are seeking a passionate individual to contribute to the development and execution of robust testing strategies to ensure the quality of our innovative software products. As a Test Engineer, you will collaborate closely with our development team, identifying and resolving defects while enhancing overall product performance.

Established in France and the United States, Gojob is at the forefront of AI-driven recruitment.Our Mission: To develop cutting-edge innovations that make the job market more fluid and accessible while assisting each individual with dignity.At Gojob, we believe in staffing instantly, at scale and with care.As a member of the French Tech 120 (FT120) since 2021 and recognized in the Next 40 in 2025, Gojob has been twice honored by the prestigious Financial Times ranking and received B Corp certification in 2023, continuing its ascent in the employment market.Our project is built upon three pillars:Innovation: Our 100% tech ecosystem, data infrastructure, and our AI “Aglaé” revolutionize recruitment processes and redefine individual support. From sourcing and matching to onboarding and training, technology permeates Gojob.Efficiency: We are committed to delivering concrete and transparent operational results: over 95% service rate and an average staffing time of just 24 minutes. For our “Gojobbers”, we offer unique support tailored to their professional journey, including financial services, online training, and 24/7 support.Impact: As a B-Corp and Social Economy Enterprise (ESS), our mission is embedded in our statutes, and we manage our activities with indicators related to our impact on the job market.Key Figures:- 80,000 recruitments for large groups and SMEs- 40% revenue growth in 2024- €25M invested in Research & Development- 2,000,000 applications processed by AI each year- 20,000 conversations managed by AI each week- 2,000,000,000 matching scores calculated by AI weekly

Join the Information Systems and Telecommunications Department (DSIT) at RTE, where we are committed to providing a modern and efficient information system that meets the diverse needs of our business sectors. In a rapidly evolving context, our information system must continuously adapt and innovate to play a vital role in preparing the electric network of tomorrow.This position is nestled within the DSIT's Software Asset Management (SAM) team, known as SILLAGE, which consists of 8 dedicated individuals working closely with procurement, finance, legal experts, and IT teams. You will be responsible for ensuring compliance and optimizing the performance of software asset management.As we refine our software licensing management policy, we are seeking a Software Asset Management Specialist to join our SAM division and support the maturation of our processes.Your primary responsibilities will include:1. For the assigned software publisher scope:Manage the software asset repository within our internal SAM tool (USU solution): registering purchases, monitoring usage, analyzing discrepancies.Establish and verify compliance in the use of paid licenses by constructing evidences of usage and ownershipCentralize data related to license inventory.Alert in case of detected non-compliance and contribute to their resolution.Respond to audits conducted by publishers in conjunction with IT and Procurement teams.Optimize the license portfolio (where possible, reallocating unused licenses).Based on contract deadlines and reported needs, manage license purchases and renewals while seeking cost optimization:Collaborate with IT teams (projects and infrastructure managers) to contribute to strategic discussions on license needs.Review contracts to identify licensing conditions, applicable metrics, and various licensing models and deployment techniques.Contract the appropriate model/volume under the best financial conditions, negotiating contracts with Procurement or leveraging the Software Distribution Market (MDL) as needed.Support technical projects related to license monitoring, optimization, and addressing potential non-compliance issues.Oversee the license budget: consolidating costs, projecting expenses, and analyzing variances.2. More broadly:Contribute to the structuring of internal SAM processes and lead the licensing theme within DSIT.Stay updated on the latest developments from software publishers.

About UsAt MARGO, our consultants focus on what truly matters: complex projects that combine intellectual challenge with real business impact. We support leading players in finance, industry, and technology in designing and developing high-performance software solutions, including distributed architectures, cloud platforms, real-time systems, and large-scale critical applications.Why Join the Software Engineering Practice?You will be part of a team led by Paul Blois, Practice Manager at MARGO for 5 years, and Prosper Gratian, Practice Lead and C++ Developer. Working alongside them provides unparalleled insight into the company, close mentorship for your development, and the opportunity to contribute to demanding IT projects with significant impact for our clients.Your ResponsibilitiesYou will engage in the development of a core application for the front office of an investment bank, a booking tool that provides positioning and performs real-time risk calculations. This tool is essential for the trading floor and other data consumers such as risk management, accounting, and back office. You will be involved in:- Developing new features to enhance performance and reduce latency.- Optimizing code to ensure peak performance, particularly in multithreading and latency management.- Collaborating with front office teams and other client departments.Technical Challenges: Performance, multithreading, and latency management.Rich Functional Environment: You will work in a rich functional environment, interacting with several key departments.Tech Stack: C++ 17

Who are we?At MARGO, our consultants focus on what truly matters: tackling complex projects that combine intellectual challenges with real business impacts. We support major players in finance, industry, and technology in designing and developing high-performance software solutions, including distributed architectures, cloud platforms, real-time systems, and large-scale critical applications.Why join the Software Engineering Practice?You will be part of a team led by Paul Blois, Practice Manager at MARGO for five years. Working alongside them means benefiting from in-depth company knowledge, receiving close support for your career development, and contributing to demanding IT projects with significant impact for our clients.Your Responsibilities- Design, develop, and optimize a new web application for the reporting, tracking, and auditing of insiders (staff with access to sensitive information) for a major banking client.- Participate in defining and implementing a high-performing and scalable architecture.- Address performance optimization challenges in both front-end and back-end systems.- Ensure code quality, maintainability, and security of the solution.- Collaborate closely with product, security, and infrastructure teams for seamless integration.- Contribute to code reviews, continuous improvement, and the sharing of best practices.Languages: Java 17, TypeScriptAssociated frameworks and technologies: Spring Boot, Angular 12, Git, CI/CDChallenges: performance, response time optimization, robustness, and regulatory complianceDesired ProfileWe are looking for a full-stack developer who is passionate about real-time systems and interested in financial markets, eager to work in complex and high-performance environments.- Education level: Master’s degree (engineering school or university).- Strong skills in both back-end and front-end development, multithreading, performance optimization, and good development practices (SOLID, unit testing).- Experience in developing critical systems, real-time data stream processing; experience in finance is a plus.- Ability to solve complex technical problems.

Who Are We?At MARGO, our consultants focus on what truly matters: tackling complex projects that combine intellectual challenges with real business impact. We partner with leading players in finance, industry, and tech to design and develop high-performance software solutions, including distributed architectures, cloud platforms, real-time systems, and large-scale critical applications.Why Join the Software Engineering Practice?You will be part of a team led by Paul Blois, our Practice Manager at MARGO for five years. Working alongside them means benefiting from extensive company knowledge, receiving close support in your professional growth, and contributing to demanding IT projects that have a significant impact on our clients.Your ResponsibilitiesYou will collaborate closely with research and business teams, enabling regular feedback and participation in various strategic changes. The goal is to transform, migrate, and optimize the tools we use.As a Python R&D Developer, your tasks will include:- Developing and adding new features using Python and C++- Participating in the redesign and optimization of various tools- Adhering to development standards and code quality- Implementing tests to reduce technical debt and improve Time to Market- Tackling technical challenges such as real-time processing, parallelization, and high data volumeYou will have the opportunity to grow in an agile and human-sized environment where technical excellence and coding best practices are at the heart of our activities.Technical challenges include algorithmic complexity, real-time performance, optimization, and scalability.Technical Stack: Back End: C++ and Python; Front End: JavaScript; Unix/Linux Environment.