Software Engineer - Tooling at Harmattan AI | Paris

About the RoleMaki is at the forefront of revolutionizing talent acquisition and management through innovative AI solutions. As an AI Engineer, you will blend machine learning research with software engineering to create impactful AI features. Your responsibilities will range from designing evaluation pipelines to integrating AI models into production systems, ensuring they are safe, efficient, and scalable.Develop AI Features: Create and implement comprehensive AI functionalities that enhance Maki’s HR agents, from initial prototypes to full production.Experiment with LLMs: Assess, fine-tune, and validate state-of-the-art models (both open-source and commercial) to optimize performance, cost, and safety.Create Evaluation Pipelines: Design frameworks to evaluate the accuracy, reliability, bias, and business impact of AI-driven functionalities.Scale Optimization: Focus on latency, caching, and cost-optimization techniques to prepare AI features for enterprise deployment.Safety & Compliance: Collaborate with security and product teams to ensure AI features adhere to enterprise standards for privacy, fairness, and reliability.Cross-Functional Collaboration: Work alongside product managers, designers, and engineers to transform ideas into deliverable features.Continuous Learning: Stay updated with the latest AI research, tools, and frameworks to keep Maki at the forefront of technology.

About MakiMaki is revolutionizing the HR landscape with fully autonomous AI hiring agents. Our technology streamlines the hiring process, from sourcing and screening to interviewing and selection, allowing HR teams to concentrate on what truly matters: engaging top talent and driving organizational success. Trusted by industry leaders such as H&M, BNP Paribas, and FIFA, Maki automates 90% of the screening and interviewing process, reducing time-to-hire by threefold and decreasing turnover by 20-30%.At Maki, we’re not just offering another tool; we’re shaping the future of AI-powered talent acquisition.Your Role as a Data Engineer Data EngineerAs a Data Engineer at Maki, you will create the data infrastructure that empowers our AI agents, product analytics, and customer insights. Your goal is to transform raw data into actionable insights, enabling every team at Maki to enhance decision-making, discover product opportunities, and provide an exceptional customer experience.Your responsibilities will include:Developing and maintaining essential data pipelines and models that drive product and business insights.Defining the collection, structuring, and tracking of product data to gain deep insights into user behavior and product performance.Creating clean, reliable, self-service data assets that empower Product, Customer Success, and Engineering teams to quickly explore and answer critical questions.Standardizing our metrics and data language to ensure the organization operates from a unified source of truth.Promoting data reliability and quality to guarantee our systems scale with accuracy, transparency, and trust.

About UsMaki is revolutionizing the recruitment landscape with cutting-edge autonomous AI hiring agents. Our technology seamlessly manages the entire hiring process—from sourcing and screening to interviewing and selection—allowing HR teams to focus on what truly matters: finding exceptional talent.Leading brands such as H&M, BNP Paribas, and FIFA trust Maki to streamline their hiring processes, automating up to 90% of screening and interviewing, thereby tripling the speed of hiring and reducing employee turnover by 20 to 30%.At Maki, we are not just another HR tool; we are pioneering the next wave of AI-driven talent acquisition.Your Role at MakiAs a Software Engineer Intern, you will collaborate with our engineering team to design and enhance the AI systems that power Maki. Your role will involve contributing meaningful features to our product, learning rapidly, and shaping the application of modern AI in large-scale recruitment.

About the Science TeamAt Maki, our Science Team is at the forefront of revolutionizing the hiring landscape through groundbreaking innovation, rigorous methodologies, and collaborative efforts. Under the leadership of our Head of Science, Aiden Loe, and in close partnership with our COO, Paul-Louis Caylar, this dynamic team is dedicated to creating exceptional content that distinguishes our platform in the industry.Our mission goes beyond mere assessment creation and validation; we are committed to continuous innovation. Our diverse projects include:Expanding a state-of-the-art library of tests and tools.Crafting customized activities and experiences tailored for our clients.Analyzing and optimizing AI-driven scoring algorithms and large language models (LLMs) to ensure fairness, accuracy, and transparency.Utilizing psychometric expertise to develop reliable, valid, and impactful assessments.Creating analytical tools that assess candidate and job data to accurately predict performance and potential.Guiding clients in leveraging assessment data to enhance their workforce strategies, encompassing everything from talent acquisition to development and retention.Conducting original research to investigate emerging psychological and technological trends and disseminating insights through publications, presentations, and client reports.Collaborating with regulatory bodies and industry leaders to establish new ethical standards in AI usage and hiring practices.Equipping internal teams and clients with the necessary knowledge and skills to effectively comprehend and apply psychological and AI-driven insights.As Maki evolves, the Science Team plays a pivotal role in enhancing user experiences, refining assessments, and encouraging widespread adoption—all while upholding the highest scientific standards.As a People Scientist, your influence will extend beyond routine tasks; you will be an integral partner in shaping the future of recruitment and delivering outstanding outcomes for our clients.About the RoleThe People Scientist operates at the intersection of psychometrics, AI, and research, ensuring that Maki’s automated scoring systems are scientifically sound, equitable, and consistently enhanced.

About the RoleAt Maki, we harness the power of data to drive innovation across our AI agents, enhance user experiences, derive customer insights, inform our internal strategies, and support predictive analytics. We are excited to welcome our first Data Lead who will establish our data foundation and play a crucial role in transforming data into a valuable product at Maki.This position is a builder role, where you will design systems, model data, reveal insights, and integrate AI into user interactions with information.Collaborating closely with our Product, Engineering teams, and Founders, you will help lay the groundwork for our long-term data strategy.Your ResponsibilitiesData FoundationsDesign, develop, and manage data pipelines (ingestion → transformation → serving).Take ownership of our data lake/warehouse and model high-quality production tables.Implement monitoring, testing, documentation, and governance practices to ensure data integrity.Data Exposure & InsightsManage dashboarding solutions (Looker, Metabase, or equivalent).Deliver reliable datasets and self-service analytics tools for stakeholders.Assist with customer SQL requests and conduct internal ad-hoc analyses.Construct the semantic layer to facilitate both internal and external insights.Data as a ProductCreate embedded data experiences within Maki’s products.Explore and implement AI-driven interfaces (natural language querying, automated reporting).Collaborate with the product team to transform raw data into customer value.

Join Our Innovative Science TeamAt Maki People, our Science Team is at the forefront of transforming the hiring landscape by embracing innovation, rigorous methodologies, and collaborative efforts. Led by our esteemed Head of Science, Aiden Loe, and in close partnership with our COO, Paul-Louis Caylar, our team is dedicated to the creation of high-caliber content that distinguishes our platform.We go beyond the conventional creation and validation of assessments; we strive to innovate. Our initiatives encompass:Developing an advanced library of assessments and tools.Designing customized activities and experiences for diverse client needs.Assessing and enhancing AI-driven scoring algorithms and large language models (LLMs) to promote fairness, accuracy, and transparency.Utilizing psychometric expertise to construct reliable, valid, and impactful assessments.Creating tools that analyze candidate and job data for precise predictions of performance and potential.Assisting clients in leveraging assessment data to refine their workforce strategies, from recruitment to development and retention.Conducting original research to probe into emerging psychological and technological trends, and disseminating insights through publications, presentations, and client reports.Collaborating with regulatory bodies and industry pioneers to set new benchmarks in ethical AI usage and hiring practices.Empowering internal teams and clients with the knowledge and skills necessary to effectively apply psychological and AI insights.As Maki continues to expand, the Science Team plays a pivotal role in understanding user experiences, refining assessments, and promoting broader adoption, all while adhering to the highest scientific standards.Your role as a Senior Psychometrician will extend beyond routine responsibilities; you will be an essential partner in shaping the future of recruitment and driving superior outcomes for our clients.

Join our dynamic team at Maki as an AI Deployment Architect, where you will play a crucial role in configuring, deploying, and enhancing our AI agents for enterprise clients. This position blends product development, engineering, and customer service, allowing you to convert business needs into effective configurations. You will ensure that each deployment meets client expectations and adapt quickly to maintain optimal performance and system stability.As a key technical partner, you will assist customers with configuration choices, address complex issues, and influence the design and execution of AI-driven screening processes. Furthermore, you will serve as a vital feedback link between our field operations and product teams, highlighting trends that warrant platform integration and validating new functionalities with real-world users.This role is highly technical and hands-on. As we expand our deployments across various industries and regions, you will help establish the benchmarks, tools, and best practices necessary for scaling our agents effectively.Key Responsibilities:Design and modify screening workflows based on client requirements.Configure state prompts, tone settings, voice selections, transitions, and conditional logic.Establish and manage custom vocabularies for ASR as needed.Conduct and oversee demonstrations; support pilot projects from inception to completion.Troubleshooting and Improvement:Examine conversation logs to pinpoint errors or discrepancies.Perform isolated state tests for focused debugging.Rapidly iterate on prompts and configurations to enhance performance.Utilize SQL for analyzing behavioral patterns, diagnosing systemic problems, and confirming enhancements.Client Collaboration:Guide clients on screening design, personas, and best practices for AI-enabled interviews.Clearly articulate technical concepts, limitations, and trade-offs.Manage expectations during pilot phases; create structured feedback systems for ongoing improvement.Act as a reliable advisor throughout deployment and iteration processes.Product Collaboration:Highlight recurring patterns and feature requests to the product team.

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.

Join Maki as a Security Engineer Intern and dive into the dynamic world of cybersecurity. This internship is your opportunity to gain hands-on experience in protecting our systems and data against malicious threats. Work alongside experienced professionals in a supportive environment that fosters growth and learning.

About UsHarmattan AI is at the forefront of defense technology, specializing in the development of autonomous and scalable defense systems. Following a successful $200 million Series B funding round, which has positioned the company with a valuation of $1.4 billion, we are actively expanding our teams and capabilities to deliver cutting-edge, mission-critical systems to allied forces.Our mission is guided by strong values: we prioritize creating technologies that have a tangible impact, strive for excellence in all endeavors, set ambitious goals, and tackle the most challenging technical problems. Our work environment is demanding, fostering a culture of rigor, ownership, and exceptional execution.

About UsHarmattan AI is at the forefront of developing autonomous and scalable defense systems, poised to redefine the landscape of defense technology. Following a successful $200 million Series B funding round, which has elevated our valuation to $1.4 billion, we are excited to expand our teams to deliver mission-critical solutions to allied forces.Our operations are underpinned by a commitment to creating technologies that produce tangible real-world impacts. We strive for excellence in all endeavors, set ambitious goals, and embrace challenging technical projects. Within our high-stakes environment, we expect rigor, ownership, and effective execution.About the RoleWe are in search of a dedicated Quality Engineer who will play a crucial role in ensuring that quality standards and requirements are meticulously integrated throughout the entire product design and development lifecycle. You will collaborate closely with Project Managers and Engineering teams, spearheading quality planning from the design phase through to the Start of Production, while ensuring compliance with ISO 9001, EN 9100 standards, and our internal quality gates.

About UsAt Harmattan AI, we are at the forefront of innovation in the defense sector, creating autonomous and scalable systems that are reshaping the future of military operations. Following our successful $200M Series B funding round, which has elevated our valuation to $1.4 billion, we are poised for significant growth and are expanding our talent pool to enhance our capabilities in delivering mission-critical solutions to allied forces.Our core values drive our work ethic: we are committed to developing technologies that make a tangible impact, striving for excellence, setting high standards, and embracing complex technical challenges. We thrive in a challenging environment where commitment, accountability, and execution are paramount.About the RoleWe invite applications for the position of Quality Engineer. In this role, you will play a pivotal part in the deployment and ongoing enhancement of our Quality Management System (QMS) across our global operations. Collaborating closely with the Senior Quality Engineer, you will help uphold our high standards of quality, assist with audits, and facilitate effective communication between various teams.

About UsHarmattan AI is an innovative leader in developing autonomous and scalable defense systems. With a recent $200M Series B funding round, valuing us at $1.4 billion, we are dedicated to expanding our expertise and capabilities to deliver essential systems for allied forces.Our mission is guided by our commitment to creating impactful technologies, striving for excellence, setting ambitious goals, and tackling complex technical challenges. We thrive in a demanding environment that values rigor, accountability, and execution.About the RoleAs an FPGA Engineer, you will collaborate closely with our existing FPGA team, focusing on RF and signal-processing elements of our projects. This role is ideal for a highly autonomous individual who is comfortable taking ownership and making technical decisions. You will be responsible for the design and implementation of the FPGA-based signal-processing pipeline, working in tandem with hardware and embedded software engineers to ensure a robust, high-performance wireless link between drones and ground stations.

About UsAt Harmattan AI, we are pioneers in developing next-generation defense systems that are both autonomous and scalable. With a recent $200M Series B funding round that has elevated our valuation to $1.4 billion, we are on a mission to enhance our teams and capabilities in delivering vital systems to allied forces.We operate with a commitment to impactful technology, striving for excellence, setting ambitious goals, and tackling complex technical challenges. Our environment is demanding, and we value rigor, ownership, and execution in our work.About the RoleWe are seeking a talented Software Tooling Engineer to create and enhance the internal tools that will allow our operations to accelerate and scale efficiently. This role involves working with our internal data infrastructure and operational workflows, designing high-leverage tools that support teams across the organization.You will combine strong software engineering skills with a deep understanding of user needs, taking ownership of the architecture, development, and deployment of essential tools for Harmattan’s core operational workflows, including AI-powered internal agents, workflow automation, internal data visualization tools, integrations, and lightweight backend services.ResponsibilitiesInternal Tools & AutomationDevelop internal tools and AI/LLM-powered agents utilized by various teams.Create dashboards, visualization tools, and workflow automations to enhance daily operations at Harmattan AI.Operational Workflow EnablementOptimize core operational processes through customized tools, connectors, and integrations with internal systems.Collaborate closely with teams to identify bottlenecks, rapidly iterate, and provide impactful solutions.Backend & InfrastructureDevelop and maintain lightweight backend services that power internal tools (APIs, data storage, metrics, logging).Assist in cloud deployment and integration with CI/CD and data pipelines.Quality & ReliabilitySet and uphold standards for code quality, testing, observability, and documentation.Ensure internal tools are reliable and meet the operational needs of the organization.

About UsHarmattan AI is at the forefront of defense technology, creating autonomous and scalable defense systems. Following our successful $200M Series B funding round, which values our company at $1.4 billion, we are expanding our teams to deliver critical solutions to allied forces globally.We are driven by our core values: crafting technologies that make a real-world difference, striving for excellence in every endeavor, setting ambitious targets, and tackling the most challenging technical problems. Our environment is demanding, where rigor, accountability, and execution are paramount.About the RoleAs a Software Engineer specializing in Infrastructure & Deployment, you will be instrumental in designing the software systems that underpin our manufacturing and production environment. You will be responsible for architecting and maintaining deployment pipelines, automating infrastructure, and managing fleet solutions for our internal production assets, which include engineering workstations, automated test benches, and IIoT components. Your mission is to ensure a high-performance, reproducible, and scalable production line that empowers our R&D and manufacturing teams to operate at an exceptional pace.

Theodo: Pioneering Digital TransformationSince 2009, Theodo has empowered innovative companies to design, develop, and deploy ingenious digital products, leveraging cutting-edge technology and a Lean approach.With exceptional growth over the past 15 years, Theodo now boasts a team of over 700 passionate Software Engineers dedicated to continuous improvement. Our expansion has led to specialized divisions (Theodo Apps, Theodo Cloud, Theodo Data & AI) focused on various technologies and industries (Fintech, Govtech, Healthtech, Consumer Products). By 2025, Theodo aims to achieve a revenue of €100M.Theodo Data & AI: Innovating with Intelligence Established in 2016, Theodo Data & AI is dedicated to guiding clients in shaping and executing their data strategies while developing state-of-the-art artificial intelligence solutions. Our growth trajectory is impressive, with over 30% annual revenue growth, creating exciting opportunities for our team.Join Our Dynamic Team:We work collaboratively across our projects, with the Lead Data & AI Engineer, Data & AI Engineer, and Product Manager ensuring impactful results for our clients.We are seeking a Data & AI Engineer to work across our Data Engineering and Data Science initiatives.- Data Engineering: Focus on data architecture, pipeline construction/migration, and data warehousing to ensure reliable data extraction, transformation, and usability.- AI/Data Science: Involve in predictive modeling, machine learning, computer vision, and MLOps.Your Responsibilities:- Deliver high-quality code within deadlines, ensuring best practices (testing, refactoring) and effective debugging for sustainable solutions.

About UsHarmattan AI is at the forefront of defense technology, specializing in the development of autonomous and scalable defense systems. Following the successful completion of a $200 million Series B funding round, which has valued our company at $1.4 billion, we are actively expanding our teams and enhancing our capabilities to deliver mission-critical solutions to allied forces.We are driven by our core values: creating technologies with meaningful impact, striving for excellence in all our endeavors, setting ambitious goals, and tackling the most challenging technical problems. Our work environment is dynamic and demanding, where rigor, accountability, and execution are paramount.About the RoleAs an Automation Software Engineer, you will be instrumental in designing and developing the software that powers our automated testing and inspection platforms. Within the R&D department, you will develop robust and scalable automation tools that enhance both product development and manufacturing processes. Your primary focus will be on software development for test automation, while also engaging in the integration of mechanical and electrical components of test systems.

Join our innovative AI Operations team as an early member, dedicated to seamlessly integrating artificial intelligence throughout our organization.In the first few months, you'll collaborate closely with our founding team, gradually assuming responsibility for essential components and features. We are in search of adaptable engineers who are eager to contribute across various facets of our company's foundation during this exciting early stage.We appreciate team members who immerse themselves in their expertise, fostering a culture of knowledge and skill development. This commitment to excellence is expected of everyone on the team.As an AI Engineer, your daily responsibilities will include:Innovative Product DevelopmentWork closely with product and design teams to create and launch AI-driven features that elevate the user experience. Engineer and deploy scalable APIs and microservices that support AI operations in production while monitoring and optimizing performance, cost, and accuracy.Enhancing Developer EfficiencyDesign, develop, and maintain AI-enhanced developer tools that boost productivity, improve code quality, and refine release processes. Integrate AI-driven monitoring, code analysis, and release automation into CI/CD pipelines. Constantly assess new models, frameworks, and APIs (e.g., OpenAI, Anthropic, Hugging Face) to discover advancements that could enhance our engineering practices.Quality Assurance and AutomationAssess and incorporate AI-powered QA solutions that can automatically generate and execute test cases, identify regressions, and highlight anomalies in production. Collaborate with QA engineers to build intelligent validation pipelines that enhance test coverage, reliability, and scalability.Strategic Roadmap DevelopmentParticipate in the creation and ideation of our roadmap. Suggest new AI-driven initiatives and assist in evaluating their potential impact and complexity. Play an active role in shaping our internal standards and best practices for AI development, deployment, and measurement across the organization.

About UsAt Harmattan AI, we are pioneering the creation of autonomous and scalable defense systems that cater to the needs of modern warfare. Following a successful $200M Series B funding round, our valuation has surged to $1.4 billion, prompting an expansion of our talented teams to deliver mission-critical solutions for allied forces.Our mission is driven by core values: developing technologies that create a tangible impact, striving for excellence in our pursuits, setting ambitious objectives, and tackling challenging technical hurdles. We thrive in a demanding environment where rigor, ownership, and execution are paramount.About the RoleWe are in search of a talented Front-End Engineer to become a vital member of our C2 Core team based in Paris. This role involves crafting the operator's interface for our tactical Command and Control (C2) system, focusing on the Human-Machine Interface (HMI) that connects operators with the battlefield.The context you'll be working in emphasizes the significance of managing cognitive load alongside software performance. The user interface you design will be operational on tactical PCs in the field, demanding real-time updates for the Common Operational Picture (COP), the ability to render multiple live video streams, and an intuitive interface for mission planning and fleet command.Key ResponsibilitiesCOP Visualization: Develop interactive maps and 2D/3D geospatial overlays to visualize real-time robot telemetry, sensor data, and mission routes.Real-Time Video Grid: Build a low-latency, robust video player interface capable of managing multiple streams without freezing the main UI thread.Mission Planning & Command: Create interactive tools enabling operators to establish waypoints, configure mission parameters, and issue real-time commands to the fleet.Performance Architecture: Design a state management system that can efficiently handle high-frequency data from the backend bus while preventing UI jitter or memory leaks.Collaborative Development: Collaborate closely with UX/UI designers, backend engineers, and mission planning algorithm developers to streamline workflows and minimize the number of clicks for operators.Optimization: Ensure the UI meets strict performance benchmarks, including consistent 60fps rendering, even during high-frequency map updates.