Senior Software Engineer specializing in AI/ML

Why Join dLocal?At dLocal, we empower some of the world's largest companies to seamlessly collect payments across 40 countries in emerging markets. Global brands trust us to enhance conversion rates and facilitate effortless payment expansion. As both a payments processor and a merchant of record in our operating regions, we enable merchants to penetrate the fastest-growing, emerging markets available.Becoming a part of dLocal means joining an incredible global team dedicated to making significant impacts. With over 1,000 teammates from more than 30 nationalities, you will have the opportunity to develop an international career that influences millions of lives every day. We are builders who embrace challenges and prioritize customer satisfaction. If this resonates with you, we are confident you will thrive in our environment.What’s the Opportunity?We are in search of a dynamic Senior Python Software Engineer to join our team, someone who is adaptable and ready to take on diverse responsibilities. Your primary focus will be on software development and creating scalable AI solutions, but you may also engage in architectural design and data analysis from time to time.We seek a proactive builder who takes extreme ownership and has a clear product vision. We aim to move beyond the Proof of Concept stage and need someone who actively identifies and resolves bottlenecks, driving the creation of robust solutions that enhance our engineering ecosystem and deliver measurable, data-driven results.

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.

Veeva Systems is a pioneering organization dedicated to transforming the life sciences sector through our industry-leading cloud solutions. As one of the most rapidly expanding SaaS companies globally, we achieved over $2 billion in revenue last year, with significant growth prospects on the horizon.Our core values drive us: Doing the Right Thing, Ensuring Customer Success, Supporting Employee Success, and Maintaining Speed. In 2021, we made history by becoming a public benefit corporation (PBC), legally committed to balancing the interests of our customers, employees, society, and investors.Embracing a Work Anywhere philosophy, we empower you to choose your ideal work setting, whether from home or in the office.Be part of our mission to revolutionize the life sciences industry, positively impacting our customers, employees, and communities.The RoleAs a Lead Python Engineer at Veeva Link, you will play a crucial role in developing the intelligence framework for Life Sciences, creating interconnected data applications that accelerate drug development and enhance patient outcomes. Our belief is clear: merging high-quality data with cutting-edge software yields tremendous value.Execution is key. We prioritize speed, accuracy, and quality in our daily creations. Our engineering methodology focuses on precise product definitions leading to thorough technical designs. We utilize a modern tech stack to ensure our applications are reliable and deliver a superior user experience.Our initiatives focus on two essential areas:Data-Driven InsightsWe create advanced applications that map and interpret global scientific and medical expertise, offering impactful insights and AI-driven intelligence. Engineers in our team tackle intricate data modeling, entity resolution, and sophisticated machine learning challenges.Intelligent Business WorkflowsOur focus is on developing intelligent workflows that streamline business processes, driving efficiency and effectiveness in the life sciences domain.

About ExoticcaExoticca is an innovative online travel agency that is transforming the way long-distance dream trips are conceived, produced, and sold online. Our brand is built around the mission of "creating life milestones," emphasizing our dedication to delivering exceptional travel experiences that offer the best value while caring for our customers and the planet. We take pride in our dynamic, multicultural team, which is rapidly expanding internationally and is eager to welcome partners who share our vision of building the most progressive travel company of our generation.What We Are Looking ForWe are in search of a Senior Software Engineer who excels as a problem solver. This role demands a versatile engineer who utilizes various technologies—backend, frontend, data, infrastructure, and AI—to address genuine customer and business challenges.You will play a pivotal role within our Customer Service optimization team, where we develop proactive and reactive solutions aimed at enhancing customer experiences on a large scale. Our mission is to anticipate customer issues before they arise and to simplify interactions through AI-driven self-service solutions when customers do reach out.While technology choices are important, the impact of your work is paramount. You will have the opportunity to work with PHP, C#, React, React Native, and modern AI tools, selecting the most effective solutions for each unique challenge without being limited to a single tech stack.Why Join Us?Engage with real, meaningful challenges that have a direct impact on customer satisfaction.Enjoy the autonomy to select the best tools for the task, including AI technologies.Collaborate with a team that prioritizes initiative, ownership, and meaningful contributions over titles and hierarchical structures.Contribute to scalable projects with opportunities to influence architecture, product development, and work methodologies.If you're seeking stimulating problems, independence, and opportunities for professional growth—welcome aboard! Key Responsibilities:Proactive Customer Experience:Develop features that foresee customer needs and alleviate potential friction points.Ensure critical information (e.g., flight details, trip modifications, and additional excursions) is clear, timely, and readily available across applications, websites, and communication channels.Create systems that minimize uncertainty and foster trust through intelligent automation and an intuitive user experience.Reactive & AI-Driven Automation:Assist in designing and building AI-driven chatbots and voicebots to enhance self-service and minimize manual support requirements.Automate customer communications regarding trip alterations (flights, accommodations, schedules).Apply AI strategically to classify, direct, resolve, or fully automate customer interactions.Product & Data-Oriented Engineering:Collaborate closely with the entire team to clearly define problems before writing code.

Join Our TeamAt Quadrivia, we are revolutionizing healthcare technology with Qu, a fully controllable and customizable AI assistant crafted by clinicians for clinicians. We tackle the pressing shortage of healthcare professionals by providing timely, personal, and dependable support for a variety of clinical tasks throughout the care continuum. Qu is tailored for healthcare providers, payers, and pharmaceutical companies, ensuring easy customization and seamless integration into existing workflows for optimal assistance across the care spectrum.Your ImpactAs a Senior Backend Software Engineer, you will architect and develop the robust backend systems that power the Quadrivia clinical AI platform. This includes building high-availability services, creating event-driven architectures, developing data pipelines, and establishing orchestration layers for our clinical AI agents.This position is highly technical and hands-on, playing a critical role in ensuring our systems' reliability, safety, and performance.

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 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.

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

As a Senior Backend Software Engineer at Blacklane, you will join one of our autonomous agile teams. Your contributions will enhance the services that drive our innovative platform, improve our back-office systems, and address integration challenges that enable our business partners to seamlessly connect with Blacklane.Our tech stack comprises Ruby, Go, TypeScript, and Java services, designed through Domain-Driven Design (DDD). These services are deployed within our Kubernetes cluster and communicate via domain events using SQS and Kafka. We utilize a variety of data storage technologies, including PostgreSQL, MySQL, Elasticsearch, Redis, and DynamoDB. For infrastructure and cloud resources, we primarily leverage AWS, managing provisioning through Terraform.

Wizeline is a global digital services company that works with clients ranging from mid-size businesses to Fortune 500 enterprises. The team focuses on building and improving digital products and services, helping organizations strengthen their digital capabilities and modernize their core technology. Role overview This Senior Fullstack Software Engineer position is based in Barcelona. The role centers on solving complex technical challenges for clients, with an emphasis on human-centered digital experiences and integrating intelligence such as AI, machine learning, and data-driven solutions. Who we’re looking for Wizeline seeks candidates who are passionate about technology and eager to take on new challenges. A strong interest in developing digital solutions and working on innovative projects is important for this role.

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.

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.

GenLayer Labs – Barcelona (Hybrid)Join us at GenLayer Labs, a pioneering decentralized AI research collective that is revolutionizing the trust infrastructure for the AI Age. We are the creators of GenLayer—an innovative, AI-driven Court of the Internet, a synthetic jurisdiction where autonomous agents and protocols can reason, transact, and govern at machine speed with unparalleled sovereignty, transparency, and trust. Our cutting-edge infrastructure empowers autonomous agents and smart contracts to access real-time web data, interpret natural language, and resolve disputes through AI consensus.Backed by industry leaders like Maelstrom (Arthur Hayes), Arrington Capital, and North Island Ventures, we are forging a new paradigm of decentralized infrastructure focused on trustless decision-making for the AI era.Role OverviewWe are on the lookout for an AI-First Developer / Builder who is eager to explore and create prototypes, tools, and internal systems that expand the potential of intelligent contracts and AI-enabled infrastructure.You will work closely with a compact, talented technical team in a dynamic AI-assisted development environment, utilizing tools such as Claude Code, OpenClaw, and other agent-based workflows to drive rapid exploration and development.This role is perfect for someone who: Thrives on rapid development. Is adaptable to ambiguity and experimentation. Integrates AI agents into their daily workflow. Is passionate about working with innovative AI and blockchain technologies.Your Responsibilities Develop AI-driven tools, prototypes, and internal systems. Create Python backends and APIs for AI-enhanced features. Work with LLMs, agents, and RAG pipelines. Prototype AI-assisted developer workflows. Experiment with novel AI capabilities for intelligent contracts. Design small full-stack applications (backend and simple frontend). Utilize AI copilots and agents extensively in development. Collaborate closely with a small team to rapidly test and iterate on ideas.

Veeva Systems is a purpose-driven leader in industry cloud solutions, dedicated to empowering life sciences companies to expedite the delivery of therapies to patients. As one of the quickest-growing SaaS companies in history, we achieved remarkable growth, surpassing $2B in revenue last fiscal year, with an exciting trajectory ahead.Our core values prioritize integrity, customer satisfaction, employee well-being, and speed. Uniquely, we made history in 2021 by becoming a public benefit corporation (PBC), which legally binds us to balance the interests of our customers, employees, society, and investors.Being a Work Anywhere company, we offer the flexibility to work from home or in the office, enabling you to succeed in your ideal workspace.Join us in transforming the life sciences industry, and making a meaningful difference for our customers, employees, and communities.The RoleAt Veeva Link, we are developing the intelligence layer for life sciences, crafting interconnected data applications that speed up drug development and enhance patient outcomes. Our fundamental belief is that merging top-tier data with cutting-edge software provides immense value.Execution is paramount. We believe that progress is driven by speed, precision, and quality in our daily endeavors. Our engineering philosophy focuses on clear product definitions that lead to thorough technical designs. We utilize a modern tech stack to create inherently dependable applications that deliver an exceptional user experience.Our work encompasses two essential domains:Data-Driven InsightsWe build advanced applications that map and analyze global scientific and medical expertise, delivering impactful insights and AI-driven intelligence. Our engineers tackle challenging data modeling, entity resolution, and sophisticated machine learning tasks.Intelligent Business WorkflowsWe design automated workflows that streamline business processes, enhancing efficiency and collaboration across teams.

Plain Concepts seeks a QA Automation Engineer with strong Python skills. This remote role is open to candidates based in Barcelona, Catalonia, Spain. The main goal: improve product reliability by advancing automated quality assurance. Key responsibilities Collaborate with development teams to design and implement automated tests for company products Identify system weaknesses and suggest actionable improvements Help refine and enhance testing strategies and processes Location This is a fully remote position. The core team operates from Barcelona, Catalonia, Spain.

About the Role Affinity is hiring a Senior Software Engineer in Barcelona. This position focuses on designing, building, and maintaining software products that support the company's goals. The team values engineers who enjoy solving complex problems and contributing to ongoing projects.

About UsPerk Technologies, Inc. (formerly TravelPerk) is revolutionizing the landscape of travel and spend management with our cutting-edge platform. Our mission is to eliminate the tedious, manual tasks that hinder productivity, allowing businesses to focus on what truly matters. We automate processes related to travel bookings, expense management, invoice processing, and much more. By addressing the significant issue of shadow work that leads to lost hours and diminished morale, we empower employees to achieve their best work.Trusted by over 10,000 organizations globally, including industry leaders such as Wise, On Running, Breitling, and Fabletics, we are addressing a staggering productivity loss of 7 hours per employee each week, representing a $1.7 trillion challenge.Founded in 2015, Perk has rapidly expanded into a global entity with more than 1,800 employees distributed across 12 offices worldwide, with headquarters in London and Boston. We prioritize innovation, control, and simplicity to transform the working experience for businesses and their employees.At Perk, our values drive us. We believe in ownership, delivering a 7-star experience, and collaborating as one team. Our focus is on curiosity, purpose, and mindset, rather than just knowledge, to unlock your full potential. Our talent team is composed of top professionals from the travel and SaaS sectors, representing over 70 nationalities. If you are passionate about making a real impact and redefining how millions experience work, we would love to welcome you to our team.Visit www.perk.com to learn more.

About Us: At Emburse, we don’t just envision the future—we actively create it. As a frontrunner in travel and expense management solutions, we are dedicated to harnessing the power of technology to deliver exceptional business value and inspire remarkable outcomes. Our AI-driven platform empowers organizations to modernize their financial operations, enhance visibility, and optimize expenditures across the entire enterprise.We are seeking a dedicated and skilled software engineer to join our dynamic team at Emburse. In this senior role, you will play a pivotal part in developing a cohesive and interactive suite of system solutions. Collaborating within an agile development team, you will be responsible for building and refining features of our Enterprise product.

Join our mission to revolutionize banking for everyone.Say farewell to the complexities of traditional banking.Initially starting as a prepaid card, our offerings have evolved significantly over the last decade in the UK. We now provide personal and business bank accounts, along with joint accounts, accounts for 16-17 year olds, a free kids account, and credit cards. Our UK customers can also save, invest, and manage their pensions with us, and we're excited to introduce even more innovative features soon.With our signature hot coral cards, an early access to salary feature, engaging financial education on social media, and our award-winning customer service, we consistently create memorable experiences for our customers!We aim to solve problems and transform lives through Monzo Barcelona, Spain | Competitive salary based on experience + stock options | Hybrid work model: 3 days a week in the officeAbout Our Engineering Teams:Our team consists of over 400 talented engineers who collaboratively design and build our proprietary banking platform. We have ambitious goals for the future, and technology is key to developing a bank that truly resonates with our customers. Engineers at Monzo work across various disciplines to tackle intriguing challenges, which span from user-facing products to critical infrastructure, security, payments, customer operations, financial crime, and data.We are committed to contributing to open-source software. To learn more about our work and culture, visit our blog.