Technical Architect - Java - Financial Markets - Critical Systems | Practice SE MARGO

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.

Join Margo Group as a Full Stack Developer specializing in Java and React. We are seeking a talented and motivated individual to contribute to our innovative projects and help shape the future of our tech solutions. As part of our team, you will work closely with designers and product managers to refine our offerings and deliver high-quality software solutions.

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.

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.

Who are we?At MARGO, our consultants engage in what truly matters: complex projects that blend intellectual challenges with real business impact. We collaborate 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 newly established team led by Paul Blois, Practice Manager at MARGO for the past 5 years. Working alongside him means gaining in-depth knowledge of the company, receiving close guidance in your professional development, and contributing to demanding IT projects with significant impacts for our clients.Your missionsYou will join a newly formed team at a leader in the energy sector, tasked with designing an algorithmic trading platform dedicated to battery energy storage. This strategic project aims to stabilize the electrical grid by injecting energy during peak consumption.As a C# Developer, you will contribute to building a robust, scalable, and high-performance solution capable of managing assets across Europe and the United States.Your responsibilities include:- Trading Engine Development: Design the software components enabling algorithmic trading in Intraday markets.- Asset Optimization: Implement and run complex optimization models (considering weather, market prices, and consumption profiles).- Backtesting Platform: Develop a secure and efficient environment for traders to test and validate their algorithmic strategies.- Scalability & Evolvability: Participate in the architecture of a solution initially focused on batteries but eventually designed to integrate the entire renewable energy portfolio (wind, hydro, thermal).

About UsAt MARGO, our consultants focus on what truly matters: engaging in complex projects that blend intellectual challenge with real business impact. We support the most prominent players in finance, industry, and technology by 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, who has been the Practice Manager at MARGO for five years. Working alongside him means benefiting from an in-depth understanding of the company, receiving close mentorship in your career development, and contributing to demanding IT projects with significant impact for our clients.Your ResponsibilitiesYou will join a team of 12 professionals tasked with translating complex financial mechanisms into an elegant and resilient software architecture. At the heart of a leading energy company's market activities, you will design the contract modeling engine that manages the group’s risk exposure.As a Senior Python Developer, your challenges will include:- Architecture & Design: Developing and evolving APIs and microservices capable of modeling rich and varied contractual life cycles.- Engineering Excellence: Ensuring code quality and maintainability (Clean Code, extensive unit and integration testing) in an environment where even a minor miscalculation can have direct financial repercussions.- Domain Modeling: Collaborating with business experts to convert complex management rules (gas purchases, P&L tracking, European regulatory constraints) into high-performing data models.- Performance & Scalability: Optimizing services for the aggregation of massive data volumes necessary for real-time risk management tools.

Who are we?At MARGO, our consultants engage in what truly matters: complex projects that combine intellectual challenges with tangible business impacts. 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, our Practice Manager for the past 5 years. Working alongside them means gaining deep insights into the company, receiving close guidance in your career development, and contributing to demanding IT projects that have a significant impact for our clients.Your responsibilities- Design, develop, and optimize a Front Office risk management application covering various financial products.- Enhance and extend existing functionalities to meet real-time business requirements.- Tackle complex performance, algorithmic, and multithreading challenges.- Participate in the design of scalable and robust microservices architectures.- Ensure code quality, maintainability, and security across the solution.- Contribute to code reviews, continuous improvement, and sharing best practices.Languages: Java 17Associated Technologies: NoSQL, microservices, CI/CDChallenges: real-time, low latency, algorithmic complexity, distributed computing, processing large data volumes.Desired ProfileWe are looking for a Java Developer who is passionate about real-time systems and has an interest in financial markets, eager to thrive in complex, high-performance environments.- Master's degree (engineering school or university).- Strong skills in Java, multithreading, performance optimization, and development best practices (SOLID, unit tests).- Experience in developing critical systems, real-time data stream processing; finance experience is a plus.- Ability to solve complex technical problems and collaborate with multidisciplinary teams.

About UsAt MARGO, our consultants focus on what truly matters: complex projects that blend intellectual challenges with significant 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 Our Software Engineering Practice?You will work alongside an experienced team led by Paul Blois, Practice Manager at MARGO for 5 years, and Prosper Gratian, Practice Lead and C++ Developer. Collaborating with them means benefiting from in-depth company knowledge, receiving close mentorship for your career growth, and contributing to demanding IT projects that have a high impact on our clients.Your Responsibilities- Design, develop, and optimize high-performance C++ components.- Participate in the migration of critical applications.- Contribute to the establishment of an internal framework for cross-functional applications.- Ensure code quality, performance, and maintainability.- Engage in code reviews, continuous improvement, and sharing best practices.Technical Stack: Modern C++ (C++17/20)Associated tools and technologies: Kafka, ElasticSearch, Git, CI/CD, AWS.Challenges: Performance, robustness, and managing large data volumes (processing 9 billion messages).Desired ProfileWe are looking for a passionate C++ developer with an interest in real-time systems and financial markets, eager to thrive in complex, high-performance environments.- Master's degree (engineering school or university).- Strong skills in C++, multithreading, performance optimization, and development best practices (SOLID, unit testing).- Experience in critical systems development and real-time data stream processing.

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 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.

Who Are We?At MARGO, our consultants focus on what truly matters: complex projects that blend intellectual challenge with tangible business impact.We support leading players in finance, industry, and tech on their most strategic endeavors in Data Science, Machine Learning, and Artificial Intelligence.Why Join the AI Practice?You will be part of a team led by Hamza Bouanani, Practice Manager of AI at MARGO, who is also the Lead Data Scientist at BNP Paribas.Working alongside him means joining a passionate group of experts, facing technical and methodological challenges, and contributing to high-impact projects for our clients.Your ResponsibilitiesWe are currently seeking a Data Scientist for a major French industrial group to contribute to a strategic marketing optimization project.Your responsibilities will include:- Development and deployment of Marketing Mix Modeling (MMM) models leveraging large volumes of marketing data (TV, digital, social media, brand experiences, etc.) to measure the impact of investments on sales and brand valuation;- Delivering large-scale models across strategic markets, integrating complex and heterogeneous environments;- Calculating and monitoring key performance indicators such as ROS (Return on Spend) and ROI (Return on Investment) by channel and brand;- Direct interaction with marketing teams to provide recommendations on optimal budget allocation;- Participating in the evolution of code and methodologies in future data migrations;- Contributing to new projects around generative AI applied to marketing content creation.Technical EnvironmentInfrastructure: AzureData Preparation: PySpark, Databricks, SnowflakeML Development: Python (VS Code), AzureMLDevelopment Tools: Git (Azure DevOps), Postman, StreamlitDocumentation: NotionMethodology: Agile / ScrumDesired ProfileWe seek demanding engineers and data scientists passionate about AI and eager to thrive in complex environments.- Education: Master’s degree (engineering school, university, PhD preferred);- Experience in Data Science applied to business challenges (preferably in marketing, pricing, budget allocation, etc.);- Strong analytical and problem-solving skills;- Proficient in programming languages and statistical tools;- Team player with excellent communication skills.

Join Margo Group as a Data Scientist or Machine Learning Engineer within our cutting-edge Practice IA MARGO team. In this role, you will leverage your analytical skills and machine learning expertise to drive innovative solutions that enhance our data-driven decision-making processes.You will collaborate with cross-functional teams, harnessing data to create predictive models and actionable insights that contribute to the success of our projects.

About UsAt MARGO, our consultants engage in what truly matters: complex projects that merge intellectual challenges with real business impact. We support leading players in finance, industry, and technology in their most strategic Data Science, Machine Learning, and Artificial Intelligence initiatives.Why Join the AI Practice?You will be part of a team led by Hamza Bouanani, AI Practice Manager at MARGO and Lead Data Scientist at BNP Paribas. Working alongside him means joining a passionate team of experts, being technically and methodologically challenged, and contributing to high-impact projects for our clients.Your ResponsibilitiesWe are currently looking for an AI Engineer to contribute to a strategic project focused on digitizing risk metric production within a multidisciplinary team led by a Lead Data Scientist.- Predictive MonitoringContext: Production teams handle large volumes of data daily to generate key indicators. Manual monitoring is complicated and doesn’t always guarantee that objectives will be met.Technical Objective: Develop a system capable of predicting daily the likelihood of meeting indicators and automatically identify weak links in the calculation chain.Expected ROI: Streamline the operational teams' work and enhance production deadline compliance.- Agentic AI FrameworkContext: The complexity of tools and procedures complicates manual incident resolution.Technical Objective: Design multiple AI (multi-agent systems) capable of centralizing knowledge, answering user inquiries, and suggesting automated corrective actions.Expected ROI: Assist operational teams daily, reduce their workload, and automate repetitive tasks.

ABOUT USAt MARGO, our consultants tackle meaningful challenges through complex projects that blend intellectual rigor with real business impact.We support leading players in finance, industry, and technology on their most strategic initiatives in Data Science, Machine Learning, and Artificial Intelligence.WHY JOIN THE CLOUD TRANSFORMATION PRACTICE?You will work within a team guided by a dedicated Practice Manager at MARGO, who is also deployed at one of our client sites.Collaborating with them means joining a passionate team of experts, facing technical and methodological challenges, and contributing to high-impact projects for our clients.YOUR RESPONSIBILITIESWe are currently seeking a Data Engineer to work with one of our clients in the energy sector within a cross-functional data team. This role encompasses various use cases arising from different departments (trading, data, HR, etc.).Your primary task will be to provide the foundational IT and Data components that serve all teams.In practical terms, our team is looking for Data Engineers and Data profiles capable of contributing to these impactful cross-functional projects.Main Responsibilities:- Support other teams in their data/AI projects- Engage in cross-functional interventions to accelerate and industrialize use cases- Deploy and launch data/AI projects into production- Work with modern technologies and enhance skills in AWS cloud- Make a direct impact on concrete topics such as energy transition, energy mix, and ecology—subjects that matter- Work alongside high-caliber colleagues (high seniority level)- Focus on continuous optimization- Handle large volumes and diverse data sets- Participate in a significant DATA transformationWHAT WE ARE LOOKING FORWe are looking for demanding engineers and data engineers who are passionate about technology and eager to thrive in complex environments.- Graduated from an engineering school or a Master's degree (Bac +5);- Proficient in Python, PySpark, Scala, AWS, Databricks, and SQL- Good command of English to operate in an international environment.WHAT WE OFFER- Ambitious and varied projects, always selected for their added value;- Close support from recognized experts;- ...

About UsAt MARGO, our consultants engage in what truly matters: complex projects that merge intellectual challenge with real business impact. We support leading players in finance, industry, and technology on their most strategic endeavors in Data Science, Machine Learning, and Artificial Intelligence.Why Join the AI Practice?You will be part of a team led by Hamza Bouanani, Practice Manager of AI at MARGO and Lead Data Scientist at BNP Paribas. Working alongside him means joining a passionate team of experts, being technically and methodologically challenged, and contributing to high-impact projects for our clients.Your ResponsibilitiesWe are currently seeking a Data Scientist for a prominent French industrial group. Your role will involve multiple projects:- Pricing Project* Scale price optimization* Estimating the impact of price variations and providing recommendations to maximize group sales and margins* Optimizing prices in line with business constraints through direct interaction with various departments* Participation in production implementation- Customer Segmentation Project* Enhancing data quality to optimize marketing campaign targeting* Developing simple, robust, and efficient classification and regression models- Recommendations* Defining and implementing targeted discounts to retain customers* Creating decision support tools for sales personnel, integrating recommendations on clients and products* Collaborating closely with departments to assess the impact and ROI of recommendations- Your role will also include:* Needs assessment and definition phase with end users* R&D phase: data analysis, testing, and development of effective models* Validation with departments and production implementation with data engineering teams* Monitoring and following up on models via Databricks dashboards.

About the RoleMaki is revolutionizing the field of talent acquisition and management through innovative AI-driven solutions. As a Software Engineer, you will take charge of the entire lifecycle of our AI products, ensuring their success from conception to deployment.Lead Technical Initiatives: Oversee and execute technical projects with a holistic full-stack approach, ensuring an optimal balance between speed and quality.Develop Reliable Systems: Create systems that maintain effectiveness despite unpredictable components, harnessing AI agents in real-world scenarios.Utilize Cutting-Edge Technologies: Keep our technology stack at the forefront by incorporating the latest advancements in Large Language Models (LLMs), vision models, and agent architectures.Collaborate Across Teams: Work with various stakeholders to pinpoint user challenges and engineer immediate solutions that enhance user experience.Who You AreWe seek dynamic, product-oriented full-stack engineers eager to make a significant impact and embrace ownership in a streamlined, high-performance team environment. You should be:Autonomous: A self-starter who drives projects to completion and thrives in leadership roles.Innovative: Passionate about AI technologies and keen to actively apply them in your work.Foundational: Interested in contributing to a high-growth journey by shaping our technology and culture from the ground up.Our Technology Stack:Backend:Typescript, Python, PostgreSQL, Google CloudFrontend:ReactJS, Typescript, GraphQLIf you're enthusiastic about transforming the future of AI-driven hiring, we want to hear from you!Recruitment ProcessMochi Screening: Experience our product firsthand.Interview with Hiring Manager.Coding Assessment.System Design Interview.Final Interview with the CEO.

Role Overview Prelude is looking for a Full-Stack Engineer based in Paris, France. This role involves building and maintaining both front-end and back-end features for our applications. The work touches every layer of our systems and directly shapes how users interact with our products. What You Will Do Develop new features across the stack, from user interfaces to server-side logic Maintain and improve existing code to keep applications reliable and efficient Apply software development best practices in daily work Collaborate closely with developers, designers, and product managers to deliver solutions that address real user needs Contribute to our agile development process and help the team adapt as we grow Tech and Collaboration This position offers the chance to work with modern technologies and frameworks. Teamwork is central: engineers, designers, and product managers work together to solve problems and build new features.

About INFINIT:Founded in 2023, INFINIT is a dynamic fintech scale-up that is swiftly expanding its presence across Europe and the Americas.Our mission is to transform the future of small and medium-sized enterprises (SMEs) by placing artificial intelligence at the heart of our innovative all-in-one operating system. With banking as a foundational element, we empower small business owners and their teams to efficiently manage and enhance every facet of their operations using AI-driven solutions.By focusing on niche industries, INFINIT offers bespoke, high-value solutions while developing cutting-edge AI products that unlock substantial growth prospects for our clientele. Our global operations are poised for expansion as we aim to redefine the fintech landscape for SMEs around the world.Join us on our journey to revolutionize the SME economy and create a significant impact through innovation Position Overview:We are seeking a passionate and skilled Full Stack Software Engineer to lead our product development initiatives. This role operates on the principle that exceptional engineers do more than just code; they create impactful solutions that meet business needs. Your main task will be to connect business objectives with technical execution, translating broad goals into well-crafted, deployable features.In this role, you will be required to evaluate project requirements, adopt a product-centric approach within the engineering team, and ensure that each line of code delivers real value. The position necessitates strong software engineering skills combined with keen product insight to prioritize and implement high-impact features in a fast-paced environment.

At Algolia, we are at the forefront of AI-powered search technology, enabling over 17,000 businesses to deliver rapid and predictive search experiences at scale. Each week, we process more than 30 billion search queries — surpassing the combined total of Microsoft Bing, Yahoo, Baidu, Yandex, and DuckDuckGo.In 2021, we secured $150 million in Series D funding, elevating our valuation to an impressive $2.25 billion. This strong financial foundation allows us to continuously enhance our market-leading platform, serving incredible clients such as Under Armour, PetSmart, Stripe, Gymshark, and Walgreens.The TeamThe Frontend Experiences (FX) team is dedicated to inspiring and empowering Algolia users in crafting exceptional UI experiences powered by Algolia. We envision, develop, and decompose advanced UI experiences into modular elements ready for integration into our users' applications. Our suite of UI libraries, including Autocomplete, is widely utilized, even appearing in the Tailwind and React documentation. Additionally, we maintain the InstantSearch library platform, unlocking complex and modern search and discovery applications.Our approach is framework-agnostic; we utilize various frameworks, including Vue.js and React, as well as plain JavaScript (Vanilla JS). We prioritize quality, writing specifications for every feature we release. Our codebase is in TypeScript, fully open-source, and thoroughly tested.Beyond frontend development, we also handle specific backend functionalities that enhance our user experiences, utilizing TypeScript, Go, and Python.The OpportunityWe are seeking a Full-Stack Engineer to join our Frontend Experiences (FX) team at Algolia. In this role, you will significantly influence the design and functionality of Algolia-powered user interfaces. You will assist customers in reimagining the future of how people search for and discover information. Your contributions will be crucial in architecting our platform, which serves as the face of Algolia’s Developer Experience.Your responsibilities will include:Architecting, designing, and developing new iterations of the InstantSearch platform, alongside our open-source libraries and backend APIs.Designing and implementing features that utilize agentic patterns within the Algolia platform and our open-source libraries.Developing new features, troubleshooting issues, and analyzing user feedback for our well-regarded open-source projects.Collaborating with product, design, and marketing teams on the rollout of new projects and websites.Taking ownership of projects, researching, exploring, and delivering innovative experiences.Sharing your expertise to enhance our understanding and improve search and discovery capabilities.