Senior Backend Software Engineer jobs in Lausanne – Browse 79 openings on RoboApply Jobs

Senior Backend Software Engineer jobs in Lausanne

Open roles matching “Senior Backend Software Engineer” with location signals for Lausanne. 79 active listings on RoboApply Jobs.

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Nexthink logo
Full-time|On-site|Lausanne

About the Role Nexthink is hiring a Senior Backend Software Engineer in Lausanne. This role focuses on building and maintaining backend systems and APIs that power our data platform for digital employee experience. What You Will Do Design, develop, and maintain backend components and APIs Work closely with other engineers to deliver reliable and scalable sol…

Apr 15, 2026
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Nexthink logo
Full-time|Hybrid|Lausanne

Join our dynamic team at Nexthink as a Senior Backend Software Engineer, where your passion for backend development will help shape the future of AI-driven products. You will play a pivotal role in designing and building scalable, high-performance backend systems that serve millions of users globally.In this position, you will architect and implement backend solutions that facilitate large-scale data processing and real-time interactions. Collaborating closely with product, infrastructure, and frontend teams, you'll ensure our systems are resilient and efficient, ready to support rapid product evolution.As a cross-functional team member, your ability to convey complex technical ideas in a straightforward manner will be crucial. You will thrive in a collaborative setting, where your contributions will enable the delivery of innovative, AI-powered experiences at scale.

Mar 9, 2026
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Adaptyv logo
Full-time|Hybrid|Lausanne / Hybrid / Remote

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.

Feb 23, 2026
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Nexthink logo
Full-time|Hybrid|Lausanne

Nexthink is on the lookout for a dynamic Principal/Staff Backend Software Engineer who will spearhead the technical strategy, architecture, and execution of our expansive AI chat agent platform. This groundbreaking system is poised to cater to over 20 million users globally, marking it as one of the most ambitious backend projects within Nexthink.In this pivotal role, you will transcend traditional implementation duties by establishing the technical roadmap, shaping cross-team design directives, and acting as a trusted advisor to engineering leadership and product teams. You will confront challenges related to scalability, reliability, and performance while collaborating with AI/ML, Infrastructure, and Security teams to create production-ready AI solutions.This position offers significant impact and ownership, allowing you to make essential architectural decisions and mentor senior engineers, ensuring that Nexthink’s AI systems are built to adapt and grow with future demands.Key Responsibilities:Define and drive the technical vision and architectural strategy for the AI chat backend platform.Lead the design of highly scalable, low-latency, distributed systems that support over 20 million global users.Collaborate with product, infrastructure, and AI/ML teams to align engineering efforts with business goals.Provide technical leadership across multiple teams, influencing design patterns, coding standards, and industry best practices.Architect and deliver fault-tolerant APIs and services capable of managing large-scale real-time workloads.Promote observability, performance, and resilience throughout the tech stack.Function as a mentor and multiplier, enhancing the technical acumen of senior engineers.Lead technical deep dives, design reviews, and roadmap alignment discussions with leadership.Incorporate security, compliance, and cost-efficiency into the design from the outset.

Feb 17, 2026
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Harmattan AI logo
Full-time|On-site|Lausanne

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.

Mar 17, 2026
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neuralconcept logo
Full-time|On-site|Lausanne

What You Will DoIn the role of Senior Frontend Engineer, you will play a pivotal role at the convergence of 3D technology and artificial intelligence, driving innovation in engineering software interfaces.Your responsibilities will include:Designing and developing high-performance applications that simplify interactions with intricate 3D models, physics datasets, and AI processes.Working closely with design and product teams to craft engaging user experiences, leveraging AI for real-time adaptability.Creating and implementing scalable, reusable UI components suitable for extensive simulation datasets.Collaborating across the technology stack to develop integrated architectural solutions and deliver comprehensive features.Establishing and upholding best practices in frontend architecture, testing, and code quality.Guiding the team to stay ahead in the rapidly changing tech environment through mentorship and code reviews.Contributing to enhancements in the design system.

Mar 3, 2026
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Visium logo
Full-time|On-site|Lausanne, Vaud, Switzerland

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.

Apr 14, 2026
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Harmattan AI logo
Full-time|On-site|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 core values: creating technologies that have a meaningful impact, striving for the highest standards in our work, setting ambitious objectives, and tackling the most complex technical challenges. We thrive in a challenging environment that demands rigor, ownership, and high-level execution.Your RoleAs an Application Software Engineer in our R&D team based in Lausanne, Switzerland, you will play a pivotal role as one of the founding members of a new team focused on developing the ground control station (GCS) software that underpins our autonomy stack. Your key mission will be to design and implement industrial-grade ground control software.

Feb 26, 2026
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Speechify logo
Full-time|On-site|Lausanne, Switzerland

Speechify is hiring an iOS Core Product Software Engineer based in Lausanne, Switzerland. The position focuses on building and refining iOS applications, with an emphasis on user experience and app performance. Key responsibilities Develop and improve core features within Speechify’s iOS apps Collaborate with product, design, and engineering teams to deliver solutions that users appreciate Ensure each release meets high standards for performance and reliability Role focus This role centers on delivering smooth, reliable experiences for iOS users. Expect to work closely with others to bring thoughtful improvements to the app’s core functionality.

Apr 25, 2026
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Nexthink logo
Full-time|On-site|Lausanne

Role overview Nexthink seeks a Software Engineer to strengthen its Virtualization Monitoring and Troubleshooting Platform. The focus is on creating and refining tools that help deliver better digital workplace experiences for users worldwide. What you will do Design, develop, and enhance solutions for monitoring and troubleshooting virtualization environments Collaborate with cross-functional teams to address technical challenges Support performance improvements across the platform Location This position is based in Lausanne.

Apr 22, 2026
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Adaptyv logo
Full-time|Hybrid|Lausanne / Hybrid / Remote

Join Adaptyv, a pioneering company revolutionizing biology experimentation with AI-driven automation.We are on the cutting edge of agentic science, where AI models are capable of designing innovative proteins, formulating hypotheses, and refining experimental outcomes. However, these models still rely on human intervention to conduct experiments—a process that can take months. We are creating a robust infrastructure that empowers AI agents to interact with the physical world seamlessly.Currently, over 50 organizations, including major biopharmaceutical companies, leading AI laboratories, and numerous techbio startups, are leveraging Adaptyv's automated lab for their wet lab experiments.Our automated laboratory operates on a sophisticated software and hardware ecosystem, comprising API-controllable lab instruments valued at millions of USD, meticulously orchestrated devices through intricate workflows, comprehensive monitoring of lab activities, processing pipelines for complex physical data, and AI systems designed to troubleshoot production outcomes and expedite assay development.As we expand rapidly, we are seeking skilled professionals to meet the soaring demand for AI-enhanced wet lab experimentation.Position OverviewIn this role, you will contribute to LabOS, our internal software platform, by developing the orchestration layer that manages everything from experiment scheduling to execution and data processing. This is a full-stack product engineering opportunity situated at the intersection of software and real-world biology.Your daily tasks may include:Developing interfaces and APIs that provide scientists and AI agents with real-time visibility into lab operations.Creating custom AI agents and tools to automate decision-making throughout the experiment lifecycle, from protocol design to troubleshooting.Transforming proprietary hardware into devices that can be controlled programmatically via APIs.Designing scheduling systems that manage multiple lab instruments with complex dependencies.You will take ownership of significant components of our product. As part of a small team, your contributions will have a substantial impact on our development.

Feb 23, 2026
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Harmattan AI logo
Full-time|On-site|Lausanne

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.

Apr 7, 2026
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Isomorphic Labs logo
Full-time|On-site|Lausanne; London

Isomorphic Labs is at the forefront of artificial intelligence, striving to unlock profound scientific insights, expedite breakthroughs, and create transformative medicines with the ambitious goal of eradicating all diseases.We envision a future empowered by the remarkable capabilities of machine learning—a future where diseases are effectively controlled or cured, beginning with enhanced and accelerated drug discovery.Join our interdisciplinary team that is pioneering innovative solutions and make a significant contribution towards our lofty objectives, all while thriving in an inspiring and collaborative environment.The world we aspire to create tomorrow is being built today, starting with the culture we cultivate here. It begins with you.About Isomorphic LabsFounded in 2021, Isomorphic Labs (IsoLabs) aims to enhance human health by transcending the Nobel-prize winning AlphaFold system. Our diverse team of drug discovery experts and machine learning professionals has developed potent predictive and generative AI models that quicken scientific discovery at an unprecedented pace.Our name reflects our belief in the inherent symmetry between biology and information science. By leveraging AI's formidable capabilities, we can model complex biological processes to design innovative molecules, predict drug performance, and create groundbreaking medicines to combat some of the world's most serious diseases.We have established a leading drug design engine featuring AI models that operate across various therapeutic areas and drug modalities. Our commitment to innovation drives us to continuously enhance our model architecture and develop state-of-the-art capabilities that advance rational drug design.With each breakthrough, we are inching closer to the promise of digital biology, working tirelessly towards our mission to ultimately conquer all diseases through AI.

Mar 20, 2026
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Harmattan AI logo
Full-time|On-site|Lausanne

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.

Feb 16, 2026
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Isomorphic Labs logo
Full-time|On-site|Lausanne; London

At Isomorphic Labs, we are leveraging cutting-edge AI technology to unlock profound scientific insights, expedite breakthroughs, and develop transformative medicines with the ambitious goal of eradicating all diseases.We envision a future empowered by the remarkable capabilities of machine learning—where diseases are effectively managed or cured, starting with swifter and more efficient drug discovery.Join our dynamic interdisciplinary team that is spearheading groundbreaking innovations and play a vital role in helping us achieve our lofty objectives within a collaborative and inspiring culture.The world we aspire to create tomorrow is being built today—starting with our company culture and with your contribution.About Isomorphic LabsFounded in 2021, Isomorphic Labs (IsoLabs) is dedicated to enhancing human health by advancing the Nobel Prize-winning AlphaFold system. Our diverse team of drug discovery experts and machine learning specialists has developed state-of-the-art predictive and generative AI models that accelerate scientific discovery at digital pace.Our name embodies our belief in the underlying symmetry between biology and information science. By harnessing the powerful capabilities of AI, we model complex biological phenomena to design novel molecules, predict drug performance, and create innovative treatments for some of the world's most challenging diseases.We have established a world-leading drug design engine featuring AI models capable of operating across various therapeutic areas and drug modalities. We continuously innovate model architecture and develop cutting-edge capabilities to enhance rational drug design.Every day, with each breakthrough, we approach our ambitious mission of potentially solving all diseases through AI.

Mar 23, 2026
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Isomorphic Labs logo
Full-time|On-site|Lausanne; London

Join Isomorphic Labs, where we harness cutting-edge AI to unlock profound scientific insights, accelerate breakthroughs, and develop transformative medicines with the aspiration to eradicate all diseases.The future is bright with the immense potential of machine learning. We're on a quest to revolutionize drug discovery, making it faster and more effective.Become a vital part of our interdisciplinary team that fosters groundbreaking innovation, contributing to our ambitious objectives while thriving in an inspiring and collaborative environment.The world we envision for tomorrow starts with the culture we are cultivating today. It begins with you.About Isomorphic LabsFounded in 2021, Isomorphic Labs (IsoLabs) is at the forefront of enhancing human health by leveraging and innovating beyond the Nobel Prize-winning AlphaFold system. Our diverse team of drug discovery experts and machine learning specialists has developed powerful predictive and generative AI models that expedite scientific discovery at digital speed.Our name reflects our belief in the inherent symmetry between biology and information science. By utilizing the robust capabilities of AI, we model complex biological phenomena to design novel molecules, predict drug performance, and create innovative medicines to combat some of the world's most challenging diseases.We have established a leading drug design engine with AI models that operate across multiple therapeutic areas and drug modalities. Our commitment to innovation drives us to continually enhance model architecture and cutting-edge features to advance rational drug design.With each breakthrough, we draw closer to realizing the promise of digital biology and our ambitious mission to ultimately solve all diseases with AI. Your ImpactAs part of the Product Engineering team, you will empower scientists to utilize the latest drug design capabilities and streamline their workflows by providing tools and insights throughout the drug discovery process. Collaborating with engineers, scientists, and ML researchers, you will develop various facets of our AI-powered drug design platform. Your work will span our offices in London and Lausanne, fostering a highly creative and iterative environment.We are still in the early stages of our journey, embracing ambiguity as we learn from each other, ensuring your contributions are impactful and meaningful.

Mar 20, 2026
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evooq logo
Full-time|On-site|Lausanne

Join evooq, a forward-thinking technology company, as a Software Engineer, where you will play a crucial role in developing innovative software solutions using Java, Kotlin, and Spring Boot. You will collaborate with a dynamic team to design, implement, and maintain high-quality software applications that meet our clients' needs.

Sep 19, 2025
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Genius Sports logo
Full-time|On-site|Lausanne, Vaud, Switzerland

At Genius Sports, we’re revolutionizing the sports experience for fans around the globe by leveraging cutting-edge technology and unparalleled live data, delivering immersive, interactive, and personalized experiences like never before. Discover more at geniussports.com.About the Role We are seeking a skilled Senior Applied AI Engineer to develop production-grade, multimodal systems (audio/video/text) that transform broadcast and radio feeds into structured, real-time signals and event candidates. You will play a pivotal role in implementing and enhancing “agentic” components, such as sensor agents and decision logic, which power innovative products like Audio Intelligence, semi-automated broadcast-to-data tagging, and highlight/momentum signals.Your technical expertise and pragmatic problem-solving approach will be essential as you collaborate within a team that values Agile delivery principles and continuous improvement. You will adopt a data-driven mindset, embracing the principles of continuous experimentation and validation.Key Responsibilities Develop and maintain multimodal agents:Audio sensor agents (acoustic events, sentiment analysis, alignment)Visual sensor agents (scorebug/overlay interpretation, basic visual cues)Specialist and decision logic components (structured event outputs, confidence scoring, traceability)Implement streaming-friendly pipelines encompassing chunking, normalization, time synchronization, asynchronous execution, and robust retry/backoff strategies for model/tool calls.Develop prompt-as-code with strict JSON contracts, schema validation, and deterministic post-processing to enhance system stability.Enhance system resilience against noisy inputs by:Designing fallback behaviors for degraded modesIncorporating guardrails and confidence thresholdsInstrumenting traces and metrics for latency, cost, and accuracyCollaborate with product, platform, and domain leads to translate sports rules and edge cases into validation logic and integrate outputs into downstream consumers (tagging, live feeds, analytics).Contribute to the evaluation workflow by adding test cases, failure mode categories, and regression checks for prompts and model routing.Stay updated with emerging generative AI technologies, tools, and trends.

Mar 5, 2026
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Neural Concept logo
Full-time|On-site|Lausanne

Your RoleAs a Full-Stack Product Engineer, you will develop robust and scalable backend systems along with high-performance applications that serve as a new intelligence layer within our engineering software, driving the next wave of technological advancement.Your key responsibilities will include:Designing and creating high-performance applications that simplify the handling of complex 3D and physics datasets, as well as AI-driven workflows.Building modular distributed systems deployable on diverse high-performance infrastructures (such as Kubernetes and on-premise HPC).Crafting optimized and user-friendly APIs with a focus on minimizing latency and ensuring reliability.Contributing to the development of high-performance databases and unstructured data management solutions.Working closely with the platform team to integrate observability into all our services.Enhancing delivery processes by evolving CI/CD practices, testing frameworks, and rollout safeguards.Establishing and maintaining automated pipelines utilizing GitHub Actions CI/CD.Collaborating across product development and design teams to craft problem statements and solutions that measurably enhance user value.

Sep 26, 2025
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Visium logo
Full-time|On-site|Lausanne, Vaud, Switzerland

Role Overview Visium is looking for a Platform Engineer to help build and refine core platforms. This role focuses on designing, developing, and deploying scalable systems that support strong performance and reliability. What You Will Do Work with teams across disciplines to deliver solutions that strengthen infrastructure and streamline operations. Apply technical knowledge to improve system availability and efficiency. Contribute to the ongoing development and optimization of Visium’s platforms. Location Based in Lausanne, Vaud, Switzerland.

Apr 20, 2026

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