Application Software Engineer at Harmattan AI | Lausanne

Join Our TeamAt Harmattan AI, we are at the forefront of developing autonomous and scalable defense systems. With the successful closure of our $200M Series B funding round, our valuation has reached $1.4 billion, allowing us to enhance our teams and capabilities to deliver critical systems to allied forces.Our commitment to excellence is driven by a set of …

About UsHarmattan AI is at the forefront of creating cutting-edge autonomous defense systems that are both scalable and mission-critical. Following our recent $200 million Series B funding round, which has valued us at $1.4 billion, we are on an ambitious path to expand our teams and capabilities to support allied forces effectively.Our innovation is driven by a commitment to real-world impact, excellence, and tackling the most challenging technical problems in a fast-paced and demanding environment. We value rigor, ownership, and execution in every project we undertake.About the RoleAs a Software Engineer - Validation, you will be instrumental in developing the essential infrastructure for testing our systems, effectively creating the "machine that tests the machine." This role bridges Hardware, Software, and DevOps, as you work to construct hardware test benches and software pipelines that allow our validation team to efficiently scale testing from one drone to a hundred.ResponsibilitiesAutomation: Create Python scripts and tools to streamline log analysis, telemetry parsing, and report generation.CI/CD Integration: Collaborate with the software team to embed physical hardware tests into our continuous integration pipeline.HIL Development: Design and construct Hardware-in-the-Loop (HIL) test benches that simulate flight conditions within a lab setting.Bonus: Design mechanical fixtures and jigs using CAD to facilitate consistent physical testing.Candidate RequirementsBachelor's degree in Software Engineering, Embedded Systems, or Mechatronics.Strong proficiency in Python (C++ is a bonus).Experience in building test benches, HIL systems, or automated test equipment (ATE).Familiarity with DevOps tools such as Docker, Jenkins, Git, and working in Linux environments.Bonus: Background in robotics or drones is an advantage.Bonus: Mechanical design skills (CAD) for developing custom testing rigs.We are eager to hear how you can contribute to shaping the future of autonomous defense systems at Harmattan AI.

Join Our TeamAt Harmattan AI, we are pioneering the future of defense technology by building autonomous and scalable systems that serve the needs of allied forces. Following our successful $200 million Series B funding round, which has elevated our company’s valuation to $1.4 billion, we are rapidly expanding our teams to enhance our capabilities in delivering mission-critical systems.We are guided by our core values: creating technologies that make a tangible impact in the real world, striving for excellence in all our endeavors, setting lofty goals, and embracing the toughest technical challenges. Our work environment is demanding, where rigor, ownership, and execution are paramount.Your RoleAs an Embedded Software Engineer, you will become an integral member of our dynamic team focused on developing state-of-the-art UAV systems. You will build upon the existing groundwork laid by our talented team, contributing to the design of software architectures, establishing development environments, and integrating drivers and algorithms for sensors and systems. Working in close collaboration with our Algorithmic teams, your skills will be vital in advancing Harmattan AI’s mission and nurturing a culture of technical excellence.

Join Avaloq, a leader in the fintech industry, as an AI Software Engineer. In this pivotal role, you will leverage cutting-edge technologies to develop innovative AI solutions that drive our business forward. Collaborate with a talented team of engineers and data scientists to create robust, scalable applications that enhance user experience and operational efficiency.

Position: AI Software EngineerType: Full-timeLocation: LausanneStart Date: May 2026About UsAt Visium, we empower enterprise leaders to shape their AI and Data strategies, spearhead large-scale transformations, and implement AI solutions throughout their operations, ensuring that their organizations remain resilient and forward-looking. With our expertise in strategy, architecture, cloud engineering, analytics, artificial intelligence, and machine learning, we enable our clients to harness and expand the potential of their data.We are dedicated to pioneering a brighter future and fostering ethical organizations. Join our community of curious, ambitious, and compassionate individuals who are committed to building a world that inspires awe.Your RoleAs an AI Software Engineer at Visium, you will play a pivotal role in designing, developing, and deploying AI solutions that provide tangible business value to our clients. You will serve as the technical authority within the team, setting high standards for code quality, architectural decisions, and contemporary AI methodologies while fostering the growth of your colleagues.Key Responsibilities:Lead intricate, end-to-end AI software engineering projects from initial scoping to production deployment.Work closely with senior client stakeholders to translate business goals into effective technical strategies.Guide and mentor colleagues through code reviews, paired programming, and practical support.Promote and drive the adoption of best practices in software engineering across all areas of practice.Contribute to internal knowledge sharing through technical presentations, documentation, and community sessions.Support internal R&D initiatives and enhance Visium's capabilities.

About UsAt Harmattan AI, we are pioneering the development of autonomous and scalable defense systems for the next generation. Following a significant $200 million Series B funding round, which values our company at $1.4 billion, we are poised for growth and are enhancing our teams and capabilities to deliver critical systems to allied forces worldwide.We are driven by our core values: creating impactful technologies, striving for excellence, setting ambitious goals, and tackling challenging technical problems. Our work environment is demanding, and we expect rigor, ownership, and high execution standards from our team members.Role OverviewAs an Aerodynamics Methodology & Software Engineer at Harmattan, you will serve as a vital link between aerospace physics and high-performance software engineering. Your primary objective will be to enhance our internal computational ecosystem, oversee our HPC/Cloud infrastructure, and convert research-oriented scripts into production-grade engineering software. You will play a key role in architecting our agentic AI workflows, developing custom MCP servers, and creating LLM-ready repositories to streamline complex simulation processes and design optimizations. You will engineer automated toolchains, enabling our team to rapidly iterate on UAV designs with unmatched precision and speed.Key ResponsibilitiesSoftware Professionalization: Transform research scripts and specialized tools into modular, high-performance, maintainable Python/C++ libraries. Ensure adherence to robust unit-testing and documentation protocols, guiding team members in structured code development.AI-Augmented Engineering & Orchestration: Design agentic workflows and custom MCP (Model Context Protocol) servers to integrate LLMs with internal CFD solvers and databases; document engineering insights into SKILLS.md or CLAUDE.md files for AI-driven code refactoring, automated simulation setups, and intelligent data analysis.MDAO Toolchain Integration: Create a cohesive design environment by developing APIs and automated workflows that connect various tools (e.g., OpenVSP, XFoil, and OpenFOAM) into streamlined optimization cycles.Infrastructure & Scalability: Optimize and manage our calculation infrastructure, including Linux-based HPC clusters (Slurm) and/or cloud computing platforms (AWS/Azure).Aero Database (ADB) Management: Establish the data architecture for storing and retrieving high-dimensional aerodynamic results, ensuring that GNC and flight physics teams have a single source of truth for data.

Jobgether is looking for a Senior Software Engineer to help shape AI SaaS products for business clients. This position is based in Switzerland. Role overview This role focuses on designing, developing, and implementing AI-driven SaaS solutions. The Senior Software Engineer will work closely with colleagues across different teams to deliver software that addresses customer needs. What you will do Design and build AI SaaS applications for business use cases Work with cross-functional teams to refine and deliver software projects Ensure solutions meet quality standards and customer expectations Requirements Extensive experience in software engineering Background in designing and developing SaaS or AI-based products Strong collaboration skills for working with multiple teams

About UsHarmattan AI is a pioneering defense technology company committed to developing autonomous and scalable defense systems. Following our successful $200M Series B funding round, which brought our valuation to an impressive $1.4 billion, we are on a mission to expand our teams and enhance our capabilities to deliver critical systems for allied forces.Our operations are centered around a set of core values: creating impactful technologies, pursuing excellence in all endeavors, setting ambitious objectives, and tackling complex technical challenges. We thrive in a high-pressure environment where accountability, precision, and execution are paramount.About the RoleAs Harmattan's propulsion requirements grow, we are looking to expand our team to expedite the development of essential hardware and software tools. You will become part of a high-impact duo dedicated to constructing advanced motor test benches and the software framework necessary for visualizing and disseminating results across our organization. This hands-on role effectively merges Python software development with practical hardware testing.ResponsibilitiesSystem Development: Design and maintain hardware motor test benches to evaluate motor, propeller, and controller performance.Software Engineering: Create and refine internal Python-based tools for propulsion testbench operations and data visualization.Data Analysis: Develop scripts to compute motor thrust requirements and manage extensive datasets to analyze performance across various hardware configurations.Testing & Reporting: Conduct motor tests, upload findings to our cloud platform, and generate technical reports for internal stakeholders and manufacturers.Collaborative Design: Engage in design meetings for new platforms (e.g., fixed-wing observers), offering expertise on propulsion solutions to fulfill range and autonomy specifications.Tool Democratization: Ensure our internal visualization tools are robust and accessible to the broader Harmattan team.Candidate RequirementsEducational Background: Master’s degree (or equivalent) in Mechatronics, Programming, or a related field; exceptional self-taught individuals with impressive portfolios will also be considered.Technical Proficiency: Proficient in Python, with experience in software engineering and hardware testing.

Who is Sonar?Sonar is dedicated to enhancing code quality and security, preventing issues from affecting production environments. We empower developers to be more productive through AI-assisted tools, ensuring a smoother developer experience across diverse workflows. Our platform analyzes all code, whether produced by internal teams, generative AI, or third parties, leading to applications that are more secure, reliable, and maintainable. With roots in the open-source community, Sonar supports an extensive array of over 30 programming languages, frameworks, and infrastructure technologies. Currently, our solutions are utilized by more than 7 million developers and 400,000 organizations globally, including esteemed clients such as the Department of Defense, Microsoft, NASA, MasterCard, Siemens, and T-Mobile.At Sonar, we strive to create exceptional products backed by strong internal teams and a robust culture. We are deeply committed to our mission and are passionate about supporting our users, each other, and our open-source community. We maintain high standards and hold each other accountable for demonstrating positivity, dedication, thoughtfulness, empathy, and passion every day.We make decisions with intentionality and clarity of purpose, while also maintaining a sense of urgency to move swiftly.Our effectiveness and operational efficiency are paramount. We work together as One Team to achieve our collective goals.At Sonar, CODE is more than just an acronym – it embodies a mindset that guides our daily operations.Why You Should Apply:Join us at Sonar, where a team of brilliant, motivated, and driven professionals is dedicated to empowering developers to create better and faster. Our solutions enhance code quality and security while minimizing developer workload, allowing them to focus more on their passions and less on tedious tasks. We address the root causes of issues, improving all code whether authored by developers, generated by AI, or sourced from third parties.We foster a dynamic corporate culture with employees across the globe and hub offices located in the USA, Switzerland, the UK, Singapore, and Germany. Our team members thrive in a collaborative environment where innovation and excellence are celebrated.

DeepJudge creates AI and ICT solutions tailored for the legal sector, operating from its headquarters in Zurich. Founded by former Google engineers with advanced degrees in AI from ETH Zurich, the company is supported by Silicon Valley investors. Its core mission is to build infrastructure that helps law firms and legal departments access and use their institutional knowledge more effectively. Many law firms use similar AI models, but their unique expertise often remains isolated. DeepJudge addresses this by offering enterprise search and AI frameworks that provide immediate access to internal knowledge, enabling automation and supporting knowledge-driven applications. Clients include international law firms such as Gunderson Dettmer, Holland & Knight, Arent Fox, and Cozen O’Connor. The team is growing in both Switzerland and North America, with a focus on surfacing and applying professional knowledge in new ways. Speed, analytical thinking, and a strong commitment to reliable products are central values at DeepJudge. Research and client collaboration are closely linked to deliver solutions that matter in high-stakes environments. Role overview The Applications Team seeks backend software engineers who focus on building dependable systems while remaining flexible. This role involves designing and implementing core backend components for DeepJudge’s web applications. Early participation in design discussions is expected, offering the chance to shape new features and refine existing ones. Over time, the engineer will take on technical leadership for major backend projects. What you will do Develop and maintain Python backend systems for web applications Contribute to backend services written in Rust, C++, and Go as needed Work with a microservices architecture deployed across cloud and on-premises clusters Analyze system performance and manage resources efficiently in varied deployment environments Location This position is based at DeepJudge’s headquarters in Zurich.

Join Harmattan AI as a Systems Engineer and be at the forefront of pioneering artificial intelligence solutions. In this role, you will leverage your technical expertise to design and implement sophisticated systems that enhance AI capabilities. Collaborate with a dynamic team dedicated to innovation and excellence in AI.

About UsHarmattan AI is at the forefront of revolutionizing defense technology, specializing in the development of autonomous and scalable defense systems. With our recent success in securing a $200 million Series B funding round, which has elevated our valuation to $1.4 billion, we are actively expanding our teams and enhancing our capabilities to provide mission-critical systems to allied forces.Our commitment to innovation is driven by core values: creating technologies that have a tangible impact, striving for excellence in all endeavors, setting high aspirations, and tackling the most challenging technical problems. We thrive in a high-pressure environment where rigor, ownership, and top-notch execution are paramount.About the RoleAs a Validation Engineer, you will be instrumental in validating the performance, reliability, and operational readiness of our autonomous defense systems. You will spearhead test campaigns on our systems, providing crucial insights for internal development and helping maintain our competitive edge in the market.

About UsHarmattan AI is pioneering the development of autonomous and scalable defense systems for the modern era. Following a successful $200 million Series B funding round, which has propelled our valuation to $1.4 billion, we are actively expanding our teams and enhancing our capabilities to deliver essential systems to allied military forces.Our operations are driven by a commitment to create technologies that generate tangible impacts, uphold excellence in all endeavors, set ambitious targets, and tackle the most challenging technical problems. We thrive in a dynamic environment where meticulousness, accountability, and effective execution are paramount.About the RoleIn the capacity of Chief Engineer, you will take full ownership of the architecture, system definition, and execution of our robotic systems, overseeing the journey from initial concept to field deployment. You will collaborate closely with project managers and technical leaders to translate mission objectives into comprehensive system-level designs, orchestrate multidisciplinary engineering teams, and ensure the overall performance, robustness, and reliability of our systems.

About Us:DeepJudge stands at the forefront of AI and ICT innovation in Switzerland, revolutionizing the way law firms and legal departments access and utilize their knowledge. Founded by ex-Google search engineers holding PhDs in AI from ETH Zurich and supported by elite Silicon Valley investors, we are crafting the intelligence infrastructure that empowers the legal sector.While every firm can license our advanced AI models, each possesses unique institutional knowledge. Years of expertise, work products, and precedents often remain siloed across systems, underutilized and hard to access. DeepJudge transforms this challenge, making expertise immediately available via premier enterprise search and AI infrastructure, allowing organizations to automate processes, create knowledge-enhanced applications, and leverage experience as a sustainable competitive advantage.Our technology is trusted by some of the world’s most prestigious law firms, such as Freshfields, Gunderson Dettmer, Holland & Knight, Arent Fox, and Cozen O’Connor. With our headquarters in Switzerland and an expanding team across North America, we are rapidly growing and redefining how professional knowledge is discovered and utilized.At DeepJudge, we prioritize speed, intellectual rigor, and a deep commitment to our creations. By combining groundbreaking research with close collaboration with our clients, we deliver impactful solutions. If you aspire to be part of a team that is shaping the way AI transforms high-stakes knowledge work, look no further.About the Role:We are on the lookout for a Backend Software Engineer to join our dynamic team and take significant ownership from the outset. You will collaborate closely with talented, motivated, and enjoyable colleagues who are enthusiastic about addressing the intricate challenges of building a high-performance product at scale.Our indexing system forms the backbone of our search engine, efficiently processing queries across hundreds of millions of documents in mere fractions of a second. Developing and maintaining these indices under stringent time and resource constraints necessitates the implementation of highly efficient, scalable software. To meet demanding throughput and latency standards, we employ modern technologies in distributed and parallel computing, database systems, and cloud platforms.

About UsHarmattan AI is at the forefront of developing autonomous and scalable defense systems. Following a successful $200 million Series B funding round that valued us at $1.4 billion, we are actively expanding our teams to enhance our capabilities in delivering mission-critical systems to allied forces worldwide.We are guided by our core values: creating impactful technologies, striving for excellence, setting ambitious objectives, and tackling the most complex technical challenges. Our work environment demands rigor, accountability, and high execution standards.About the RoleAs an Electrical Engineer, you will be instrumental in designing and developing electronic boards and embedded systems (SoM) for UAVs, including Flight Controllers, Companion Computers, and Electronic Speed Controllers.Key ResponsibilitiesEmbedded System Design: Architect and design the physical and electrical integration of complex systems utilizing processors, fast memory (DDR, Flash), and peripherals such as embedded computers, sensors, and video processing.Schematic and Routing Design: Create and develop electronic schematics, ensuring board placement and routing meet stringent design specifications while managing fast signal constraints.Physical Integration: Collaborate with the Mechanical Department to ensure seamless integration of the boards into the final product.Sensor Integration: Partner with the GNC (Guidance, Navigation, and Control) Department to ensure efficient sensor integration.Electromagnetic Compatibility: Tackle and resolve EMC challenges while maintaining signal integrity.Troubleshooting: Diagnose and rectify issues in electrical and electronic boards through effective troubleshooting methods.Testing and Validation: Execute testing, integration, and performance validation of electronic boards to ensure they meet operational and design requirements.

Join Adaptyv, a pioneering company revolutionizing biology experimentation with automation and AI.We are crafting an automated laboratory where AI agents conduct biology experiments autonomously. As we embark on this exciting journey into agent-based science, our AI models are capable of designing novel proteins and proposing innovative hypotheses. However, the execution of these experiments remains a manual undertaking, often taking months to complete. Our mission is to develop the infrastructure that enables AI agents to interact with the physical world.Currently, over 50 companies leverage Adaptyv's platform for their wet lab experiments, including prominent biopharmaceutical firms, cutting-edge AI labs, and numerous techbio startups.Our automated lab integrates an advanced software and hardware architecture, featuring API-controllable lab instruments worth millions, orchestrated devices through intricate workflows, comprehensive observability of lab activities, and robust processing pipelines for complex physical-world data. Additionally, our AI systems expedite assay development and troubleshoot production results.As we experience rapid growth, we are seeking skilled individuals to help scale our capabilities and meet the increasing demand for AI-enhanced wet lab experimentation.About the RoleIn this position, you will create backend systems that empower our lab automation. You will design data pipelines to handle large-scale protein characterization data, develop APIs for integrating laboratory instruments and robotics into our software ecosystem, and collaborate closely with scientists and automation engineers to translate intricate molecular biology workflows into dependable, scalable software solutions. This role goes beyond typical SaaS; you will be programming physical machines to perform precise biological tasks with minimal human intervention.

Who is SonarSource?SonarSource is dedicated to preventing code quality and security issues from reaching production. By enhancing developers' productivity through AI assistance and optimizing workflows, we ensure a more secure, reliable, and maintainable codebase. Our solutions support over 30 programming languages and technologies, making us a trusted choice for more than 7 million developers and 400,000 organizations globally, including renowned names like the DoD, Microsoft, NASA, and T-Mobile.At SonarSource, we are passionate about creating exceptional products backed by strong internal teams and a vibrant culture. Our commitment and dedication to our users, each other, and the open-source community drive our high standards and accountability. We believe in making deliberate decisions with clarity of intention while maintaining a sense of urgency in our operations.We operate as One Team, focusing on effectiveness and operational efficiency. At SonarSource, CODE symbolizes our ethos, shaping our daily operations.Why You Should Join Us:Become part of a dynamic team of talented professionals dedicated to empowering developers to build better and faster. Our innovative solutions not only address symptoms but also tackle the root causes of code quality and security issues, allowing developers to concentrate on what they enjoy most.

At Exa, we are pioneering a search engine from the ground up to support every AI application. Our team is dedicated to constructing a robust infrastructure capable of crawling the web, training cutting-edge embedding models for indexing, and developing highly efficient vector databases in Rust for rapid searching. We proudly operate a $5M H200 GPU cluster that powers tens of thousands of machines, ensuring optimal performance.As a Backend Software Engineer, you will be instrumental in shaping our backend systems. We value flexibility and allow team members to choose projects that align with their skills and interests.

Flexion Robotics creates the intelligence layer for next-generation humanoid robots, drawing on deep expertise in robot reinforcement learning. Founded by scientists from organizations like Nvidia and ETH Zürich, the team has rapidly advanced from early development to deploying real humanoid capabilities. The company is backed by international venture capital and operates from Zürich. Role overview The Simulation Software Engineer will take full responsibility for the simulation stack that drives robot learning at Flexion Robotics. Simulation is central to the company’s approach for scaling intelligence, and this position shapes both the fidelity and efficiency of the simulation platform. The work directly influences how robots learn and perform in real environments. Main responsibilities Simulation stack ownership: Design, develop, and maintain the core simulation infrastructure for robot learning. Oversee its architecture, reliability, and ongoing evolution to meet team needs. Simulation fidelity: Build and refine models for contacts, actuators, deformables, and sensors. Work to reduce the sim-to-real gap, improve physical realism, and validate simulations using real-world data. Training throughput optimization: Enhance the simulation stack for large-scale reinforcement learning. Implement efficient multi-GPU and multi-node pipelines, and resolve bottlenecks to increase training speed. Photorealistic rendering and synthetic data: Extend rendering pipelines to support vision-based learning. Enable domain randomization and generate synthetic datasets for robust perception systems. Software-in-the-loop testing: Maintain infrastructure for validating policies and systems within simulation before hardware deployment. Support rapid iteration and help minimize risks during transitions to real robots. Collaboration: Work closely with engineers and researchers in reinforcement learning, control, perception, and hardware to align simulation with real-world performance and deployment objectives.

Join RIVR, a pioneering Swiss robotics firm dedicated to transforming last-mile delivery through innovative robotics and Artificial Intelligence. Our mission is to empower one human with the capabilities of a thousand, enhancing efficiency and sustainability in delivery processes. With our robust foundation rooted in research and collaboration with ETH Zurich, we are at the forefront of integrating advanced robotics and AI into practical applications that revolutionize logistics.As a Senior Backend Engineer, you will be integral to the design, development, and maintenance of our advanced server-side systems that power our delivery platform. Your expertise will be vital in creating robust, scalable microservices and integrations essential for fleet management, data processing, and operational efficiency in a cloud-native environment. This position requires a strong ability to convert complex business needs into dependable backend solutions.