Senior Sanitation Engineer

Role Overview Veolia Environnement S.A. is hiring a Senior Sanitation Engineer for the Barcelona office. This position leads complex sanitation projects and plays a key part in shaping wastewater management strategies. Main Responsibilities Lead the planning and execution of sanitation projects, from design through implementation. Ensure all work meets envir…

Join Datavant as a Senior Platform Engineer and play a pivotal role in shaping our platform's architecture and functionality. We are seeking an innovative and technically proficient individual who thrives in a fast-paced environment. You will be responsible for developing scalable solutions, ensuring the reliability of our services, and collaborating with cross-functional teams to enhance our platform's features.

Axiomatic AI offers a Software Engineering Internship focused on Platform and DevOps. This position is available in Boston, US or Castelldefels (Barcelona), Spain. Role overview Interns will join experienced engineers to support platform reliability and efficiency. The work centers on refining development workflows and deployment processes. Projects often involve applying artificial intelligence to practical challenges. What you will do Collaborate with engineers to enhance platform performance Assist in improving development and deployment pipelines Contribute to initiatives that use AI in real-world applications Internship experience Direct involvement with current platform and DevOps methods Insight into active AI projects Work closely with a knowledgeable engineering team

Role Overview Delivery Hero is looking for a Senior iOS Software Engineer to focus on logistics and order tracking within our UI SDK team. This role centers on building and improving mobile features that support a smooth user experience across our delivery platforms. What You Will Do Design and develop iOS components for logistics and order tracking using our UI SDK. Work closely with product and design teams to refine mobile app features. Contribute to the quality and reliability of our mobile applications. Location This position is based in Barcelona.

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 innovative team as a Staff Software Engineer within the Database & Streaming team at Tech Foundations. We are dedicated to delivering exceptional experiences and driving the rapid innovation and growth at Delivery Hero.As part of the Tech Foundation Team, you will play a pivotal role in enhancing foundational systems that empower faster feature development, bolster security, and ensure reliability across our global engineering landscape. Your contributions will enable our teams to build, scale, operate, and deliver high-quality features that impact millions of users worldwide. Our mission is to simplify the complexities associated with stateful resource management, allowing engineers to focus on creating outstanding products rather than struggling with infrastructure. We create systems that offer secure access, compliant resources, and effortless provisioning. You will face challenges that span every facet of our organization, all while operating at an industry-leading scale. Our team is characterized by curiosity, pragmatism, and a commitment to providing a seamless experience for our users.If you thrive on solving complex problems and transforming technical challenges into clear solutions, you will find your place with us.Your Responsibilities:Design, develop, and maintain high-performance services that support the company’s Database & Streaming provisioning systems.Expand our Kubernetes Operator ecosystem through the development of custom-built operators.Create tools that streamline resource provisioning, access, and governance across numerous AWS accounts and GCP projects.Enhance the architecture of our internal Streaming Ecosystem to improve scalability, reliability, and developer experience.Collaborate with engineers, product managers, and security experts to develop self-service workflows that balance agility with compliance.Engage in team discussions and propose innovative solutions to enhance automation, performance, and user satisfaction.

About Us:Wizeline is a leading AI-native technology solutions provider dedicated to developing innovative, AI-driven digital products and platforms. We collaborate with clients to harness the power of data and AI, expediting their market entry while facilitating transformative business changes. As a diverse community of innovators, we cultivate a culture centered on growth, collaboration, and impact.Join us and discover what we can achieve together!Are You the Right Fit?Excited about the opportunity? Let’s ensure you align with the role:Key Responsibilities:Engage in meetings with the experimentation team to align on objectives.Analyze, develop, and follow up on requirements to ensure project success.Develop A/B tests for our web platforms to enhance user experience.Conduct thorough reviews of experiments through unit testing and manual testing.Collaborate with cross-functional teams to define requirements and request adjustments to applications.Work closely with UI/UX designers to implement effective designs.Manage code repositories to ensure version control and documentation.Participate in code and peer reviews to uphold quality standards.

About the Role Vonage is hiring a Java Software Engineer for the Cloud Engineering team in Barcelona, Spain. This team focuses on the Vonage Video Platform, with an emphasis on improving PaaS backend systems. The work centers on optimizing cloud resource management and provisioning, as well as designing scalable architectures for distributed computing. What You Will Do Develop new features for the Vonage Video Platform. Enhance backend systems with a focus on quality, fault tolerance, and performance. Design and implement scalable, distributed solutions. Work with real-time communications technologies. Use data to guide improvements in service building and scaling. What Makes This Role Stand Out This position offers the chance to deepen expertise in large-scale, highly available systems. The team includes experienced engineers who share a strong interest in cloud infrastructure, media technologies, and real-time communication. Joining Vonage means working on impactful projects that shape how businesses communicate globally.

Join the Team at dLocal!At dLocal, we empower some of the largest global enterprises to seamlessly collect payments across 40 emerging markets. Our innovative solutions help renowned brands enhance conversion rates and ease the complexities of payment expansion. Serving as both a payment processor and a merchant of record, we facilitate our merchants' growth in the world’s most rapidly evolving markets.By joining dLocal, you will become part of a dynamic and diverse global team, collaborating with over 1000 teammates from more than 30 nationalities. Your role here will have a significant impact on millions of people's daily lives. We are a team of builders who embrace challenges and prioritize customer satisfaction. If you resonate with our values, we believe you will thrive in our environment.

Join Lodgify as a Senior Data Engineer and take the lead in shaping our robust data platform. In this pivotal role, you'll design, implement, and optimize data pipelines and infrastructure, driving data-informed strategies that propel our company forward. Collaborate with a diverse team of professionals in the heart of Barcelona, where innovation meets technology in the vacation rental industry.

Position: Lead Software Engineer (MLOps, GCP)Employment Type: Full-timeStart Date: March 2026About UsAt Visium, we empower enterprise leaders to shape their AI and data strategies, drive transformative initiatives, and seamlessly integrate AI into their operations, making their organizations resilient for the future. With unparalleled expertise in strategy, architecture, cloud engineering, analytics, artificial intelligence, and machine learning, we help our clients harness and scale the potential of their data.Join us on our mission to create a brighter future by fostering ethical and future-ready organizations. Become a part of our dynamic team of innovators, visionaries, and doers – the Visiumees.Are you ready to join us?Your RoleWe are seeking a highly skilled Lead Software Engineer with a focus on Machine Learning. The ideal candidate will have extensive experience in developing production-grade systems and a strong background in MLOps and ML systems. This role emphasizes software development excellence through clean architecture design, high-quality code writing, and the operation of reliable systems at scale. You will collaborate with business stakeholders to create scalable, maintainable, and impactful ML solutions on Google Cloud Platform.Design, develop, and maintain scalable and reliable software systems that support various ML use cases.Take ownership of production services from end to end (design, implementation, testing, deployment, monitoring).Implement and advocate for software engineering best practices (clean code, architectural patterns, testing, CI/CD).Build and maintain APIs, services, and data pipelines integral to ML systems.Establish MLOps workflows with a strong focus on automation, reproducibility, and monitoring.Design and operate cloud-native systems on Google Cloud Platform.Work closely with ML engineers and data scientists to integrate models into production systems.Effectively communicate with stakeholders and participate in technical decision-making.QualificationsTo qualify for this role, you should possess:A minimum of 6 years of experience in software engineering.Exceptional programming skills and proven experience in building production systems.A solid foundation in software architecture, system design, and distributed systems.Experience applying engineering best practices in real-world scenarios.Hands-on experience with cloud platforms, particularly Google Cloud Platform (GCP).Experience with CI/CD, infrastructure as code, and production monitoring.Strong communication and stakeholder management skills.Willingness to work on-site in Winterthur once a week or travel if based outside of Switzerland.

OverviewThe field of artificial intelligence is advancing at a remarkable rate, with technologies such as large language models (LLMs) and multi-agent systems becoming ubiquitous. At TransPerfect Legal, we are enhancing our AI capabilities to meet the evolving demands of our clients in eDiscovery, document review, and intensive information workflows. Our focus is on pioneering AI-driven solutions that effectively address complex business challenges.As an integral member of the Legal Artificial Intelligence team, the Artificial Intelligence Software Engineer will work collaboratively with AI/ML engineers, product teams, and domain experts. This role involves designing and implementing production-grade product solutions that utilize cutting-edge AI technologies to fulfill our clients' needs.We are seeking a highly skilled individual to join our agile team, tasked with the design, development, and support of AI-powered systems across various applications, including LLM use-cases, information retrieval, agentic workflows, and traditional machine learning strategies. Responsibilities will encompass projects such as classification, information detection, extraction, categorization, and AI-assisted review tools, aimed at deriving meaningful and actionable insights from both structured and unstructured data. Candidates should possess strong experience in modern AI development, scalable infrastructure, and a commitment to continuous learning in the realm of legal technology. While experience in eDiscovery is not mandatory, it is highly valued.

Discover OktaAt Okta, we are redefining security and identity management, empowering individuals to use any technology, on any device, anywhere. Our versatile products, including the Okta Platform and Auth0 Platform, ensure secure access and authentication, embedding identity at the heart of business security and scalability.We embrace diverse perspectives and experiences. We seek lifelong learners who can contribute their unique insights to enhance our team.Be part of our vision! Join us in creating a world where identity is truly yours.As a Staff Software Engineer, you will take on the role of a technical leader and architect for our backend systems. Your responsibilities will include defining the technical vision for our platform, mentoring senior engineers, and tackling complex challenges related to scalability and reliability. Your influence will be critical in establishing engineering practices and architectures that empower teams to deliver high-quality software on a global scale.

Join the innovative team at Fundamental as a Senior Applied Research Engineer in Barcelona. In this pivotal role, you will leverage your extensive expertise in applied research to develop cutting-edge solutions that drive our projects forward. You will collaborate with a dynamic team of engineers and researchers, pushing the boundaries of technology to create impactful products.

About Us:Are you ready to make a meaningful impact? Join our dynamic team at Rover, where work meets play!At Rover, we believe that everyone deserves the unconditional love of a pet. Since our inception in 2011, we have been dedicated to connecting dog and cat parents with trustworthy pet sitters and dog walkers across the United States, Canada, and Europe through our user-friendly app and website. We empower our community of pet care professionals to establish and grow their businesses with the support and resources of a global company.Headquartered in Seattle, Washington, we collaborate with our talented teams in Barcelona, San Antonio, Spokane, and remote locations. Our commitment to creating a fantastic workplace has earned us recognition as one of the 100 Best Companies to Work For by Seattle Business Magazine and Washington’s Best Workplaces by the Puget Sound Business Journal. Our agile, fast-growing company is led by individuals with extensive experience from some of the world's leading tech firms.At Rover, we cherish our furry colleagues as much as our human ones. Our mission extends beyond enhancing the joys of pet ownership; we are equally dedicated to cultivating a diverse, inclusive, and welcoming community for pet lovers, starting with our employees.This position offers relocation assistance to Barcelona. This is a permanent, full-time role with a hybrid work schedule—Mondays and Thursdays in our office located in Poblenou, Barcelona.Please submit your CV in English.Data Engineering at Rover:Data is the backbone of Rover's operations. Our team collaborates with various departments to ensure that the data driving our business decisions is accurate, up-to-date, and dependable, while our reporting infrastructure serves the needs of everyone from analysts to executives.Are you eager to contribute to the modernization of our Data Platform and enhance our ETL tools? If you are enthusiastic about collaborating across teams—from Product to Data Science—this role will offer you the opportunity to engage in exciting projects that make a difference while expanding your knowledge in the 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

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.

We are seeking a passionate Software Engineer who will play a crucial role in ensuring the quality, development, and execution of our innovative software products as part of our dynamic global team.You will join a talented technology department consisting of a diverse group of professionals from various locations, including Barcelona, New York, London, Manchester, Bucharest, and India. If you’re eager to make a significant impact in a rapidly growing organization, we want to hear from you!About TransPerfect – TechOps:The TransPerfect TechOps team has been instrumental in the company’s success for over a decade, providing technology and services that have greatly simplified operations for our clients and internal teams. From enhancing workflows to developing core services for our GlobalLink platform, we strive to create scalable client interfaces that enable users to navigate complex ecosystems effortlessly.

Join the Positive Side of Technology! Known as ZnanyLekarz in Poland and Doctoralia in Spain, we are globally recognized as Docplanner.Our mission is to develop technology that enhances health and longevity. Our innovative products facilitate connections between patients and doctors, streamline clinical workflows, and bolster healthcare systems utilized by millions each month.At Docplanner, engineering is not just about technology; it’s about creating dependable, scalable systems that have a significant human impact. Our solutions influence patients, healthcare professionals, and clinics in crucial, everyday situations, highlighting the importance of quality, discernment, and long-term vision.Looking ahead to 2026, we are enhancing our delivery across various product areas by adopting AI-assisted development, aiming to boost engineering efficiency and elevate our approach to designing, delivering, and evolving systems.Why You Should Consider Joining Us?Imagine the satisfaction of telling your loved ones how your work contributes to a better world. You’ll rest easy knowing your efforts are meaningful and align with your values.We aim to enable healthier, longer lives, starting with your unique contribution. Embracing diverse human experiences enhances healthcare for everyone, and we champion that diversity wholeheartedly. You can choose to work entirely remotely or adopt a hybrid model with our offices located in Barcelona or Warsaw, depending on team allocation.Key Challenges Awaiting YouAs an engineer at Docplanner, you might tackle challenges in the following areas:Marketplace & SearchDevelop a cutting-edge marketplace system, overseeing the entire process from agentic discovery to rebooking. Utilize AI-driven search and onboarding processes to unlock new demand and turn one-time bookings into continuous care pathways.Practice Management Systems (PMS)Create the next-generation software to assist healthcare providers worldwide. Consolidate the current fragmented landscape and harness AI to redefine how doctors can prioritize what matters most: patient care.AI-powered Clinical Tools (Noa Medic)Design AI-driven clinical workflows that exceed basic administrative tasks, establishing essential daily routines for medical professionals.

Join Our Team at Codeway At Codeway, we create innovative consumer applications that enrich the lives of millions globally. Our focus on cutting-edge AI technology, user-centric design, and high-quality standards drives our mission in wellness, learning, and productivity. As a pivotal part of our expanding engineering team in Barcelona, you will be immersed in a vibrant culture that emphasizes ownership, rapid execution, and exceptional craftsmanship. We empower our engineers to influence product decisions and deliver impactful solutions to our users swiftly. Role OverviewWe are on the lookout for a dedicated and skilled Senior DevSecOps Engineer. In this vital role, you will spearhead security awareness initiatives within our development and deployment processes while implementing advanced security solutions through a variety of tools. Your expertise will play a crucial role in safeguarding the integrity, confidentiality, and availability of our applications and data within our expansive cloud infrastructure. Key ResponsibilitiesSecurity Awareness & Training: Design and execute security training programs for development and operations teams, promoting best practices in secure coding and deployment.Security Policies & Procedures: Develop, establish, and enforce security policies, standards, and procedures that align with industry best practices and regulatory requirements.