Applied AI Engineer - Agentic AI for Scientific Workflows

About Us: Axiomatic AI is pioneering a groundbreaking suite of AI systems that leverage the scientific method's rigor. By fusing deep learning with formal logic and physics-based modeling, we engineer verifiable and interpretable AI solutions that empower human researchers in high-stakes scientific and engineering endeavors. Our Mission: We aim for a transfo…

About Axiomatic AI Axiomatic AI builds AI systems that bring the rigor of the scientific method to reasoning. By combining deep learning, formal logic, and physics-based modeling, the team develops interpretable and verifiable AI tools designed to support human researchers in scientific and engineering tasks. The company's 30×30 mission targets a 30-fold increase in the speed, affordability, and accessibility of semiconductor and photonic hardware development by 2030. This vision drives efforts to reshape hardware design and simulation, moving research breakthroughs toward real-world products. Research Internship Overview This Research Internship centers on the intersection of AI, formal methods, and scientific reasoning. The role suits PhD candidates interested in advancing AI for science and engineering, especially those who want to build tools that verify scientific results. Interns will focus on research into automated verification of scientific reasoning. Projects may include developing AI agents for complex mathematical formalization, designing knowledge retrieval systems, and exploring both formal and informal verification workflows. What You Will Do Develop tools for formal reasoning, such as improved library search, theorem retrieval, and formalization assistants. Explore Lean metaprogramming or related formal methods tools for scientific applications. Create verification pipelines for complex equation derivations, connecting AI and physics. Work with researchers to define a focused project that advances internal capabilities and research understanding. Conduct scientific research suitable for publication at leading conferences (ICLR, ICML, NeurIPS) or contribute to major open source initiatives. Locations Boston, US / Toronto, Canada / Castelldefels (Barcelona), Spain

About Axiomatic AI Axiomatic AI develops AI systems grounded in scientific rigor. By combining deep learning, formal logic, and physics-based modeling, the team builds interpretable and verifiable AI that supports human researchers in scientific and engineering work. Mission The company is working toward a 30× improvement in the speed, accessibility, and cost of semiconductor and photonic hardware development by 2030. The goal: transform hardware design and simulation, moving innovations from research into real-world applications. Role Overview: AI Research Scientist – Scientific Reasoning This position centers on developing reliable and trustworthy AI for scientific and engineering domains. The role involves designing verification pipelines, analyzing and curating data, benchmarking systematically, and diagnosing design issues to recommend improvements. Collaboration is key: the team includes Mathematicians, AI Engineers, Software Engineers, Lean4 developers, Physicists, and other AI scientists. What You Will Do Project Contribution and Technical Execution: Design and implement formalization and validation strategies for scientific applications. Innovation and Learning: Stay current with new research and technologies, integrating advances to strengthen product impact. Cross-Team Collaboration: Work closely with AI and development teams to integrate solutions, encourage open communication, and support technical quality. Knowledge Sharing: Share insights and best practices to support team learning and growth. Location Barcelona, Spain

Join Prosper AI as an AI StrategistLocation: Barcelona (On-site)Type: Full-timeAbout Prosper AIAt Prosper AI, we are revolutionizing healthcare through our innovative AI Phone Agents that provide human-like expertise while drastically cutting costs. Our AI agents streamline administrative tasks such as patient scheduling, claims status checks, and benefit verifications, aiming to eliminate $200 billion in administrative waste, thus allowing healthcare professionals to concentrate more on patient care.About the RoleAs an AI Strategist, you will be pivotal in deploying and optimizing our AI agents across some of the most intricate healthcare organizations globally. You will lead strategic initiatives from configuration to full-scale production, ensuring measurable impacts for our clients. Your insights will help refine our external deployments and internal best practices.Key ResponsibilitiesOversee the complete deployment of AI agents on Prosper AI’s platform for U.S. healthcare clients, including hospitals and clinics.Collaborate with clients and internal teams to map out administrative workflows and pinpoint areas ripe for AI-driven automation.Evaluate deployment performance data to identify challenges and promote continuous improvement.Create and enhance internal playbooks and frameworks to expedite future deployments.Transform complex operational challenges into actionable strategies that connect technology with healthcare operations.Who You AreHolds a Bachelor’s degree or higher in Computer Science, Engineering, Business, Economics, or a related field.Possesses strong analytical skills with the ability to dissect complex processes for AI impact.Demonstrates a passion for the convergence of AI, healthcare, and operations.Thrives in a dynamic startup environment with evolving priorities and significant ownership.Bonus: Familiarity with healthcare workflows, LLMs, automation tools, or enterprise software deployments is a plus.

About Prosper AIProsper AI is at the forefront of innovation, specializing in AI Phone Agents designed for the healthcare sector. Our mission is to deliver human-like expertise while dramatically reducing operational costs. Our AI Agents efficiently manage a variety of tasks such as patient outreach, claims status inquiries, benefit verifications, prior authorizations, scheduling, and balance reminders. We are dedicated to eliminating $200 billion in administrative waste, enabling healthcare professionals to devote more time to patient care instead of administrative duties.Your RoleJoin us at Prosper as we redefine the capabilities of real-time AI technology. As a Software Engineer, your primary focus will be on designing and scaling our robust platform, including low-latency speech and LLM pipelines, orchestration layers, and reliability systems that empower our AI voice agents to engage in complex healthcare conversations with clarity and efficiency. This position is a full-time, on-site opportunity based in Barcelona with the potential for relocation to our New York office.Qualifications1-3 years of hands-on experience in developing end-to-end software solutions, from architecture to deployment.Proficiency in technologies that drive our stack, particularly FastAPI (Python) for backend development and React (TypeScript) for frontend.Experience in managing large-scale distributed systems with asynchronous workload orchestration.Familiarity with LLMs, AI agents, or other machine learning models is advantageous; we utilize Pipecat for our voice agents.A founder mindset: take ownership and work diligently, viewing Prosper as a stepping stone to your future entrepreneurial endeavors.Prepared to tackle the complexities of deploying AI voice agents for thousands of daily calls.Bachelor’s or Master’s degree in Computer Science, Engineering, Mathematics, Physics, or a related field (or equivalent experience).Interview ProcessInitial conversation to discuss your background, aspirations, and career goals (30 minutes).Completion of a take-home challenge to be reviewed in the subsequent interview.Discussion of your solution with our engineering team to evaluate your approach and thought process.

Axiomatic AI is seeking interns for a software engineering program centered on AI and agentic systems. This internship gives participants a chance to work on projects aimed at solving real-world challenges, guided by experienced professionals in the field. Role overview Interns will join teams focused on the design, development, and implementation of AI-driven solutions. The work involves hands-on experience with agentic systems and exposure to current technologies in artificial intelligence. What you will do Contribute to the creation and deployment of AI-based solutions Work closely with team members and industry experts to address technical problems Build practical skills in agentic systems and related tools Locations Boston, US Castelldefels (Barcelona), Spain

About UsAt Visium, we empower enterprise leaders to craft their AI and data strategies, drive transformative initiatives, and effectively integrate AI into their operations—ensuring that their organizations are resilient and future-ready. As a spin-off from Visium, we are channeling our extensive enterprise knowledge into a groundbreaking product: a category-defining Agentic AI solution tailored specifically for pharmaceutical companies.Our product is anchored in AI designed for highly regulated sectors, operating where complexity, compliance, and trust are paramount. Our mission is clear: to expedite the delivery of life-saving medications to the market, making the process faster, more cost-effective, and safer, thereby unlocking significant benefits at scale.With deep roots in enterprise AI and an ambitious vision for the future, we are building a team of innovators, engineers, researchers, and product thinkers to shape a product that is not only technically superior but also transformative.Join us on a mission to redefine the future of work, creativity, and knowledge. Are you ready to help us construct the future of Agentic AI?Role OverviewWe are in search of a Full-Stack Software Engineer eager to help us create the foundation of our Agentic AI Platform from the ground up. You will translate cutting-edge AI concepts into real, production-ready software utilized by scientists and researchers daily.Your responsibilities will encompass the entire stack: from developing intuitive frontends that simplify complex AI systems to designing robust APIs and backend services that facilitate autonomous agents. You will work collaboratively with ML engineers, product designers, and domain experts to forge a platform that merges human expertise with intelligent automation.This role is hands-on and impactful, granting you significant ownership. You will play a critical role in making architectural decisions, experimenting with innovative agentic frameworks, and helping to establish what “state-of-the-art” signifies in the realm of trustworthy AI for life sciences.If you thrive in dynamic environments, are passionate about creating groundbreaking solutions, and aspire to influence the next generation of intelligent software, we would be excited to connect with you.Your daily activities might include:Designing and implementing full-stack features that bring agentic workflows to life for scientists and researchers.Creating orchestration layers, retrieval pipelines, and APIs for intelligent agents using Python and FastAPI.Developing user-friendly and high-performance frontends in React and TypeScript for configuring and monitoring AI agents.Collaborating with ML engineers to integrate LLMs, embeddings, and RAG systems into production settings.Building and maintaining cloud-native infrastructure using containers, Kubernetes, and CI/CD automation.Contributing to architectural decisions, SDK design, and enhancing the developer experience.

Join our elite AI Special Forces team at Darwin AI! We are seeking a dynamic and enthusiastic AI Support Specialist who is committed to providing rapid, effective, and high-quality assistance to our clients. If you are passionate about technology and AI, and enjoy tackling challenges head-on, this role is a perfect fit for you.As an AI Support Specialist, you will be instrumental in addressing client inquiries and resolving issues related to their AI agents. You will serve as the frontline for clients needing assistance with technical problems and system integrations. Your ability to troubleshoot effectively and collaborate with teams across Customer Success, Product, and Engineering will ensure that our clients receive exceptional support and maintain a strong relationship with Darwin AI.Your responsibilities will include:Responding to customer inquiries through platforms such as WhatsApp, email, and Slack, ensuring swift responses and high satisfaction rates.Troubleshooting and resolving technical issues, particularly those involving AI behavior, configuration, and API integrations.Monitoring alerts from internal tools and acting upon customer feedback submitted through the Darwin platform.Collaborating closely with Product and Engineering teams to escalate complex issues and contribute to product enhancements.Documenting support activities in our systems to maintain accurate records of issues and solutions.Identifying recurrent issues and assisting in the development of internal documentation and FAQs.Teaming up with Customer Success and Onboarding to provide a seamless customer experience.Auditing AI interactions to discover bugs or areas for improvement.Ensuring that all critical feedback and issues are resolved within agreed service level agreements (SLAs).

Role overview This Research Scientist position at NielsenIQ focuses on Generative AI and applied research, based in Barcelona. The role leads projects that apply advanced AI techniques to deliver research results with real-world impact. Work centers on designing and implementing AI solutions that help advance industry knowledge and improve NielsenIQ’s products. Collaboration and impact In this role, collaboration is key. The Research Scientist works closely with a team of researchers and engineers, exploring new applications for AI technologies. The group aims to expand the possibilities of AI and strengthen the value of NielsenIQ’s offerings through innovative research and development.

About seQuraseQura is at the forefront of fintech innovation, delivering flexible and user-friendly payment technologies that enhance merchants' ability to attract, convert, and retain customers. We are committed to improving sales performance by customizing solutions across various sectors including Retail, Education, Eyewear, Repairs, and Travel, addressing specific challenges to achieve outstanding results.Our mission is to empower savvy consumers seeking value, convenience, and flexibility in their shopping experiences. We offer innovative payment options that allow customers to save, access interest-free credit, or make manageable payments over 24 months.Founded in Barcelona, seQura is a rapidly growing fintech company expanding its reach throughout Southern Europe and Latin America, boasting over 50% CAGR and nearing €100M in Annual Recurring Revenue. Our exceptional service has earned us the trust of over 5,000 businesses and nearly 2 million shoppers, reflected in our impressive NPS of 87%, a Trustpilot rating of 4.7/5, and a Glassdoor rating of 4.7/5.About the Role We are developing seQura’s Smart Agent platform, an advanced intelligent agent system designed to assist shoppers throughout their purchasing journey. This platform integrates Large Language Models (LLMs) for human-like interaction with retrieval-augmented generation (RAG) utilizing seQura’s data, web crawling, and structured product information.This position focuses on the creation of robust, production-ready backend systems that empower these agents to effectively address shopper needs. AI research, data science, or mathematical modeling are not required, as all necessary frameworks are already established.Key Responsibilities:Design and implement scalable backend systems for agent workflows, managing context, state, and interactions.Safely and efficiently integrate AI agent functionalities with core platforms such as payments, shopper accounts, risk management, and merchant services.Utilize RAG frameworks and structured data to generate intelligent responses without the need for model fine-tuning.Collaborate with Product, Frontend, and other teams to deliver seamless user experiences.

Join our dynamic Operations team at Darwin AI as an AI Onboarding Specialist! We are seeking an individual who is not only enthusiastic about technology and artificial intelligence but also values providing exceptional service. This position is perfect for those who enjoy initiating client relationships, converting requirements into functional AI solutions, and ensuring a seamless implementation process for our new customers.In this crucial role within our Onboarding team, you will be instrumental in the initial phase of the customer journey—helping clients to unlock the potential of Darwin AI from day one.Your responsibilities will include: Facilitating the onboarding process for new client accounts, ensuring all essential information is gathered and configured for a successful launch. Leading kick-off meetings with clients to align expectations, collect requirements, and guide them through the onboarding process. Building and configuring AI assistants utilizing internal tools, tailored to client specifications and business logic. Collaborating with Sales, Customer Support, and Product teams to ensure a smooth transition and cohesive client experience. Maintaining clear and consistent communication with clients via WhatsApp, following up regularly to address any challenges and ensure progress. Delivering the initial version of the AI solution promptly and ensuring it adheres to quality standards before going live. Monitoring and managing onboarding timelines to ensure accounts are launched within the service level agreement (SLA) and are not identified as churn risks. Providing initial training and resources to empower clients in testing and understanding their AI assistant.

Join the cutting-edge AI Special Forces team at Darwin AI! We are seeking a driven and enthusiastic AI Engineer who is passionate about leveraging technology to provide exceptional support to our clients. This role is ideal for individuals who thrive on solving complex problems and have a keen interest in the intricacies of technology and artificial intelligence.As an AI Engineer, you will be at the forefront of client interactions, serving as the primary resource for resolving challenges related to AI agents and their integration with external systems. Your responsibilities will involve direct communication with clients to address inquiries, troubleshoot issues, and collaborate with internal teams including Customer Success, Onboarding, Product, and Engineering to ensure timely and comprehensive resolutions. Your contributions are vital in fostering strong client relationships and enhancing the overall Darwin AI experience.Key Responsibilities:Promptly respond to customer inquiries through WhatsApp, email, and Slack, ensuring high levels of satisfaction.Diagnose and resolve technical issues, particularly those involving AI behavior, configurations, and API integrations.Monitor alerts from internal tools and customer feedback on the Darwin platform to take necessary actions.Collaborate closely with Product and Engineering teams, escalating complex challenges and contributing to product enhancements.Maintain detailed documentation of support activities to ensure accurate tracking of issues and solutions.Identify recurring problems and assist in developing internal documentation and FAQs.Work alongside Customer Success and Onboarding teams to ensure a seamless client journey.Review AI conversations to uncover bugs or areas for improvement.Ensure all critical feedback and issues are addressed within the specified SLA.

Prosper AI creates AI Phone Agents tailored for the healthcare sector. These agents support tasks such as patient communications, claims status checks, benefits verification, prior authorization management, and appointment scheduling. The company aims to reduce administrative waste in healthcare, freeing up professionals to focus on direct patient care. Role overview The Forward Deployed Engineer will contribute to advancing Prosper AI’s real-time voice agent technology. This position focuses on building agents that communicate effectively and integrate smoothly with client systems. High performance and low latency are essential requirements. Collaboration with AI Product Managers is a key part of the role, identifying technical enhancements and fine-tuning agent performance to match each client’s needs. Location This is a full-time role based in Barcelona. There may be future opportunities to transfer to the New York office.

Join our dynamic Customer Success team at Darwin AI, where we are dedicated to empowering our clients through innovative technology and artificial intelligence. We seek an enthusiastic and proactive Customer Success Executive who appreciates the significance of delivering outstanding client satisfaction. This role is ideal for someone who excels at nurturing long-term customer relationships and enjoys utilizing data and AI tools to enhance client success with our platform.As a Customer Success Executive, you will be pivotal in guiding our clients towards achieving their objectives, driving product adoption, and minimizing churn. You will serve as the primary liaison for our customers, offering continuous support and forward-thinking solutions to facilitate their business growth using Darwin AI.Key Responsibilities: Oversee the ongoing relationships with designated customers, acting as their main contact for support, updates, and optimization of AI solutions. Facilitate Monthly Business Reviews (MBRs) to evaluate customer satisfaction, assess AI performance, and pinpoint areas for improvement. Engage proactively with clients to discover new use cases, relay product updates, and ensure they are extracting maximum value from our AI solutions. Regularly monitor client accounts for signs of churn risk and collaborate with internal teams to devise strategies aimed at enhancing engagement and retention. Conduct training workshops to boost customer proficiency and encourage deeper integration of our tools. Analyze customer feedback and usage data to identify trends, insights, and potential areas for enhancement. Collaborate closely with Customer Support, Product, and Engineering teams to escalate and resolve technical issues while providing feedback for product enhancements. Maintain precise records of customer interactions and progress utilizing Planhat and other CRM tools.

Join our innovative team at Lodgify as a Senior AI Engineer where you'll lead the development of cutting-edge AI solutions to enhance our platform. Collaborate with a talented group of engineers and data scientists to design, implement, and optimize algorithms that drive our product's capabilities.

About Antai VenturesAntai Ventures, a premier venture studio based in the heart of Barcelona, is dedicated to partnering with visionary entrepreneurs to create groundbreaking and scalable enterprises from the ground up. Since our inception in 2012, we have successfully co-founded over 30 ventures, including notable names like Glovo, Wallapop, PlatanoMelon, and PiperAI. Our portfolio companies have collectively secured more than $1.5 billion in funding, generated over $3 billion in shareholder value, and contributed to the creation of over 5,000 jobs. About JuryoJuryo is pioneering an agentic AI platform tailored for small and mid-sized law firms, with a focus on high-volume B2C legal practices (extranjería, LSO, laboral, deudas, civil). Our innovative voice and WhatsApp agents streamline client qualification, document generation, case management, and billing workflows, resulting in a remarkable 2× increase in lead conversion for our clients.We have transitioned from concept to revenue within mere months:Successfully onboarded multiple paying law firmsAchieved six-digit ARRFacilitated daily interactions (over 200 calls/WhatsApps) by real customersEstablished a clear product-market fit in a vast and fragmented market exceeding €5 billion in Spain aloneAs a co-founder, you will play a pivotal role in defining our vision, establishing the pace of growth, and taking on significant responsibilities. In return, we offer substantial capital backing and hands-on support across various domains including Product, Technology, Design, Go-To-Market, Legal, Talent, Finance, and Fundraising to expedite your journey from inception to success. What You’ll DoCollaborate with the founding team to develop a robust technical vision and transform that vision into a comprehensive, value-driven roadmap.Engage in hands-on coding on a daily basis, utilizing cutting-edge AI orchestration techniques (multi-agent workflows, toolformer, dynamic RAG pipelines) and solid engineering principles (DDD, SOLID, relentless automation) to provide exceptional customer value rapidly.Recruit, mentor, and expand a top-tier engineering team, covering backend, frontend, data, and DevOps, ensuring the delivery of products that customers actively engage with on a weekly basis.Architect high-throughput data pipelines to enhance agent performance while ensuring security and compliance.

About Us: Axiomatic AI is pioneering a new generation of AI systems that leverage the scientific method's rigor. By merging deep learning with formal logic and physics-based modeling, we are developing verifiable and interpretable AI systems that enhance the capabilities of human researchers in critical scientific and engineering domains. Our Mission: 30×30 is our ambitious goal to achieve a 30-fold enhancement in the speed, accessibility, and affordability of semiconductor and photonic hardware development by the year 2030. We are on a mission to transform hardware design and simulation in these sectors, and we are assembling a team of highly driven professionals to translate groundbreaking research into commercial applications. Position Overview: As an Applied Researcher focused on Formal Methods for Physics, you will be an integral part of a dedicated team responsible for creating innovative formal verification tools for science and engineering. Your tasks will include evaluating Lean4 code for formalization, developing specialized Lean4 libraries, ensuring proof integrity, and maintaining high code quality. You will also oversee data curation, conduct benchmarking to assess performance, identify reasoning flaws, and propose effective solutions. Collaboration with our diverse cross-functional team—including Lean experts, mathematicians, physicists, AI researchers, and software engineers—will be crucial for the project's success. This role is based in Barcelona, Spain.If you are not currently located in Barcelona, we still encourage you to apply. Axiomatic is dedicated to attracting top talent globally, and we are willing to discuss relocation support for the right candidate. Your Mission: Lean4 Development: Design and maintain internal Lean4 libraries, ensuring they are scalable, maintainable, and compatible with our AI pipeline. Code Evaluation: Analyze Lean4 code for formalization and correctness against scientific standards, ensuring overall code quality. Data & Benchmarking: Curate datasets, execute benchmarks, and analyze performance outcomes to drive enhancements. Cross-Functional Collaboration: Work closely with our research team to ensure rapid and effective project progress.

We are seeking a highly skilled Senior AI/ML Engineer to join our innovative team at Visium Technologies in Barcelona. In this role, you will be responsible for developing cutting-edge machine learning algorithms and models that enhance our AI capabilities. Your expertise will play a pivotal role in driving our projects forward and contributing to the advancement of AI technology.The ideal candidate will have a strong background in machine learning, deep learning, and AI technologies, along with the ability to work collaboratively in a fast-paced environment.

Who We AreHelsing is a pioneering defense AI company dedicated to safeguarding democratic values. Our mission centers on achieving technological leadership, enabling open societies to make independent decisions and uphold their ethical standards.As advocates for democracy, we recognize our unique responsibility in the thoughtful advancement and application of powerful technologies such as AI. We take this responsibility seriously.Our ambitious team comprises engineers, AI experts, and customer-oriented program managers. We seek mission-driven individuals to join our European teams and leverage their skills to tackle the most intricate and impactful challenges. Our culture is open and transparent, encouraging healthy discussions on the role of technology in defense, its advantages, and ethical considerations.The RoleAt Helsing, we provide AI-driven capabilities and foundational technologies that empower machines to enhance human decision-making. You will have a unique opportunity to develop AI capabilities in a challenging sector where high generalization needs to meet hardware constraints and real-world resilience.As part of a team dedicated to pushing the limits of autonomous robotics through reinforcement learning, your focus will be on designing, training, and deploying RL-based controllers for robots in complex, unstructured, and dynamic real-world environments—areas where traditional control strategies fall short. This role involves enabling robots to perceive and comprehend their surroundings by integrating diverse sensory inputs, including vision, to inform robust and adaptive control strategies. You will manage the entire pipeline, from simulation to deployment, ensuring that learned policies are not only robust and efficient but also primed for real-world operations under stringent hardware limitations.

Join Visium as the AI Engineering & Platform Lead, where you will spearhead innovative AI projects and lead a dynamic team of engineers. Your expertise will drive the development of cutting-edge AI solutions that enhance our platform capabilities. We seek a visionary leader who thrives in a fast-paced environment and is passionate about leveraging AI to solve real-world challenges.