Senior Fullstack .NET Engineer (SDLC x AI)

At Affirm, we are transforming the credit landscape to offer a more transparent and user-friendly experience. Our mission is to empower consumers to buy now and pay later without hidden fees or compounding interest.Join our innovative Servicing International team as we lead Affirm's global expansion by developing a robust platform for launching our products in emerging international markets. In this role, you will specifically focus on purchase protection, including handling disputes and refunds—an essential aspect of the customer journey, supported by significant investment. Your collaboration will be key as you work closely with European engineers and our global Servicing Engineering team to create cohesive and scalable solutions. If you are driven by the desire to craft exceptional user experiences and are excited about the challenges of entering new markets, we invite you to help shape the future of Affirm's platform and extend our global reach.

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.

Managing expenses can often be chaotic and cumbersome, creating challenges not only for finance teams but for every individual involved. At Pleo, we are on a mission to revolutionize this experience. Our innovative spend management solutions streamline financial processes, making them efficient, empowering, and surprisingly effective for both finance teams and employees—our goal is to help businesses 'go beyond'.The name 'Pleo' translates to 'more than you’d expect', and living by this principle has been our key to success over the past decade.We are currently at a crucial stage in our evolution; every action we take has a significant impact on our 40,000+ clients, our business trajectory, and our shared success. We seek individuals who take pride in identifying customer needs, transforming complex challenges into straightforward solutions, respectfully questioning established methods, and aspiring to achieve greatness. With ambitious goals propelling us forward, we acknowledge that we haven't mastered everything yet—and that’s part of the excitement! We are a dedicated, forward-thinking, and importantly, kind team of over 850 individuals from more than 100 nationalities, all committed to shaping the future of business spending together.About the RoleWe are in search of a Senior Software Engineer to become a key member of our Demo Experience Platform team at Pleo. In this role, you will empower various internal customers and stakeholders to engage with, test, and demonstrate Pleo through our demo and sandbox environments, contributing to Pleo’s Platform organization. If you are enthusiastic about enhancing our sales demo experience, boosting our sales conversion rates, streamlining our product development processes, or facilitating seamless integrations within our API ecosystem, this opportunity is tailored for you!You will report to our Senior Engineering Manager and collaborate closely with teams across multiple departments, particularly in Go-to-market, to drive success. Our tightly-knit team of four is highly collaborative and committed to optimizing the demo experience for Pleo.Key ResponsibilitiesAs a Senior Software Engineer in our Demo Experience team, you will:Lead initiatives to design, develop, and maintain innovative solutions that enhance efficiency across various departments.Collaborate with cross-functional teams to identify improvement opportunities for demo, sandbox, and testing account experiences.Engage in code reviews, conduct post-mortems, and provide mentorship to fellow engineers.Proactively tackle technical debt while guiding the team through technical challenges and migrations.Contribute to the execution, delivery, and quality assurance of projects.

Join Rithum™, the world's most reliable commerce network that revolutionizes how brands, suppliers, and retailers collaborate to create seamless e-commerce experiences. Our innovative platform empowers brands and retailers to drive growth, optimize operations across various channels, expand product offerings, and improve profit margins.With over 40,000 companies relying on Rithum to enhance their business across numerous channels, generating more than $50 billion in annual GMV, we equip our clients with commerce, marketing, and delivery solutions that ensure optimized consumer shopping journeys from start to finish.OverviewOur Engineering Team is home to some of the industry's top engineering talent, dedicated to refining processes, enhancing quality, and developing advanced techniques aimed at delivering top-notch software solutions. The distinction between traditional QA and software engineering is blurred, with quality considered at every stage of development.We take pride in our highly motivated team, which focuses on working smarter rather than harder. With the authority to make local decisions, we minimize bureaucratic overhead. Our commitment to operational excellence is supported by a DevOps culture and a “you build it, you run it” philosophy. We embrace a Lean approach to product development, applying agile workflows such as Scrum and Kanban based on team directives. We continuously evaluate our tech stack to ensure we deliver the highest quality software, with a strong emphasis on Continuous Delivery, automated testing, and continuous integration.As a Senior Software Engineer in our Retailers business function, you will be responsible for crafting efficient, well-structured, and maintainable code, serving as a subject matter expert and a mentor to less experienced engineers. You will collaborate closely with our lead designers and architects to propel our product forward while ensuring scalability, maintainability, and performance across our product suite.

Join Aircall, an innovative unicorn transforming customer communications through AI-powered solutions utilized by over 22,000 businesses globally. Our platform unifies voice, SMS, WhatsApp, and AI into a cohesive workspace that enhances efficiency and revenue.With a mission to empower teams to operate smarter, Aircall’s AI Voice Agent automates routine calls while AI Assist and AI Assist Pro provide streamlined processes and real-time assistance, enabling teams to achieve remarkable results.Headquartered in Paris, Aircall has a robust presence in North America with a headquarters in Seattle and teams across cities including Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our rapidly growing business is supported by leading investors and driven by continuous AI innovation across our diverse product lines.Culture at Aircall: We prioritize customer focus, data-driven decision-making, and the delivery of impactful outcomes. Our values include ownership, continuous learning, and a commitment to thoughtful execution. If you thrive in a collaborative and fast-paced environment where trust and impact are prioritized, you will find your place here.We are seeking an enthusiastic and dedicated Senior Software Engineer to contribute to our expanding Communication Platform department as part of the Number Management team. In this role, you will spearhead the design, development, deployment, and maintenance of essential features that significantly enhance customer value.You will actively promote best practices and mentor colleagues within your team and across the engineering department.Our commitment to quality, excellence, and agility is central to our delivery processes, and you will play a vital role in elevating these standards.

Join Contentsquare as a Senior Fullstack Software Engineer, where you will play a pivotal role in our Growth line, enhancing user conversions and driving customer retention strategies. This position offers the flexibility of being based in our Barcelona or Cairo offices or working remotely from Spain, Italy, Poland, or Portugal. You will collaborate with a diverse team to maximize monetization efforts while fulfilling our users' needs effectively.

Dataiku builds the Platform for AI Success. Enterprises use it as a central layer to design, deploy, and govern AI, analytics, and machine learning projects. The platform connects data sources, cloud infrastructure, and AI services, helping organizations run AI solutions with strong governance and transparency across different environments. Companies around the world trust Dataiku to turn AI into measurable business results. Learn more on the Dataiku blog, LinkedIn, X, and YouTube. Why join Engineering at Dataiku? Dataiku’s platform runs on-premises, in the cloud, and as SaaS. The team works with a wide range of data science and AI technologies, always choosing tools that add real value. Engineers contribute to open-source communities and use the latest LLMs, sharing knowledge with peers worldwide. For more on Dataiku’s engineering culture, visit this page. About the Business Solutions Team The Business Solutions team creates applications that use Dataiku’s data and AI strengths. These solutions are tailored for enterprise use cases, focusing on user-friendly interfaces and workflows. The team supports clients in Manufacturing, Life Sciences, Finance, and more, powering key business and operational processes. Their work helps make 'everyday AI' a reality for customers. What you will do Innovative AI-Driven Solutions: Design, build, and deliver AI-powered applications that solve complex business problems.

Wizeline delivers AI-native technology solutions and builds digital products and platforms for clients worldwide. The company focuses on using data and AI to help organizations launch products faster and drive meaningful change. Collaboration, growth, and making a real impact are central values here. Role overview This Fullstack Software Engineer position is based in Barcelona. The role centers on designing and developing digital products that use AI and data to solve real business problems. Working closely with clients and team members, you will contribute to projects that aim to accelerate time to market and support business transformation. What you will do Build and maintain fullstack applications as part of a collaborative team Work with AI-driven technologies to create innovative solutions Contribute ideas and expertise to deliver high-quality digital products What we value Curiosity and a drive for growth Openness to collaboration and teamwork A focus on making a positive impact through technology

Are you a passionate Fullstack Engineer ready to take on exciting challenges? Join Scopely, a leading interactive entertainment company, where you'll work on innovative gaming projects that captivate millions of players worldwide.As a Fullstack Engineer, you will design and develop robust web applications, ensuring a seamless user experience. Collaborate with cross-functional teams, contribute to architectural decisions, and implement best practices in coding and testing.

Join the Nexthink Engineering department as a Senior Software Engineer, where you will play a pivotal role in developing our innovative Collectors—endpoint agents that gather and analyze crucial OS information from millions of users.These Collectors not only extract valuable insights about operating systems but also facilitate issue remediation, enhancing the overall user device experience. They are a fundamental and intricate component of our product suite, demanding the utmost reliability and performance across platforms such as Windows, macOS, and Linux.• Challenge #1: Develop robust and dependable solutions.• Challenge #2: Implement solutions tailored for multiple platforms, leveraging the unique advantages of each.• Challenge #3: Strive for cross-platform compatibility whenever feasible.Our engineering team thrives on tackling unconventional challenges, distilling them into actionable solutions. They continuously innovate to enhance our products, prototype their ideas, and see them through to production, all while adhering to our stringent standards of quality, performance, and security.

About Our ClientOur client is at the forefront of digital identity and fraud prevention, powering a platform utilized by banks, fintech companies, online marketplaces, and other regulated entities across the globe. Their innovative solutions merge biometric identity verification, document and image processing, along with cutting-edge fraud detection technologies. This enables clients to achieve seamless digital interactions while maintaining rigorous security and compliance standards. Leveraging AI, machine learning, and computer vision, they provide identity verification, mobile deposit, and liveness detection solutions that are crucial for thousands of organizations. About the RoleWe seek a Senior Full Stack Engineer proficient in Go and modern web front-end technologies. As part of a cross-functional team, you will contribute to developing cloud-native identity and fraud products on AWS. Your role will encompass designing and implementing robust APIs in Go while creating user-facing features utilizing contemporary JavaScript frameworks, ensuring both internal and external users enjoy secure and high-performance experiences. What Will You Do?Design, develop, and maintain backend services and APIs in Go, hosted on AWS, employing microservice or serverless architectures.Create responsive single-page and web applications using React and Redux, integrating seamlessly with backend APIs.Develop clean, reusable UI components prioritizing user experience, performance, and accessibility.Implement and uphold automated testing for backend and frontend systems, contributing to CI/CD processes.Collaborate closely with designers, product managers, QA, and fellow engineers for requirement refinement and end-to-end feature delivery.Engage in technical design and architecture discussions, helping to define interfaces between services and frontend applications.Contribute to comprehensive documentation for APIs, frontend components, and critical technical decisions.Participate in Agile ceremonies, actively seeking process enhancements within the team.

Join our dynamic team at alan as a Fullstack Software Engineer (x/f/m). In this exciting role, you will have the opportunity to work remotely from anywhere in Spain, contributing to innovative projects that drive our mission forward. You will be responsible for both frontend and backend development, collaborating with cross-functional teams to deliver high-quality software solutions.

About the RoleAre you ready to build the digital interfaces that will drive the future of next-generation Unmanned Aerial Vehicle (UAV) systems? In this pivotal role, you will play a key part in the design, development, and testing of software systems that facilitate everything from UAV manufacturing to their real-world operational deployment. Your main focus will be creating intuitive, high-performance user interfaces that empower operators and engineers to interact with intricate aerospace systems seamlessly and reliably.At Destinus, we are at the forefront of revolutionizing the defense sector with our groundbreaking UAV technologies. Our innovations are tailored to meet the complex demands of modern defense operations, offering unmatched speed, accuracy, and cost efficiency. Destinus collaborates with government agencies and defense organizations globally to deliver advanced solutions for mission-critical tasks, ushering in a new era of operational efficiency and technological dominance. Join us in pioneering the future of defense through cutting-edge aerospace innovations.Your ResponsibilitiesEngage in the design, development, and testing of systems that span the production and operational phases of our UAVs.Front-End Development - Craft interactive and user-friendly interfaces using React.Back-End Development - Construct a robust backend architecture for efficient data retrieval and processing.DevOps - Oversee and deploy applications on platforms like AWS EC2 and Docker Swarm.CI/CD - Create efficient Continuous Integration and Continuous Delivery pipelines for our systems.Testing - Establish a comprehensive testing suite to validate our mission-critical systems.Monitoring - Develop and implement monitoring solutions to troubleshoot and resolve software issues swiftly.

Ebury empowers ambitious businesses to achieve global growth, and we apply the same philosophy to our employees. We promote innovation, collaboration, and problem-solving, creating an environment where everyone feels valued, supported, and capable of succeeding.If you are a team player eager to revolutionize how businesses operate on a global scale, we would love to connect with you. Join us at Ebury to accelerate your career and help shape the future.Senior Full Stack EngineerLocation: Madrid / Malaga Office - Hybrid: 4 days in office, 1 day remoteThe Lending team at Ebury is on the lookout for a Senior Full Stack Engineer to play a pivotal role within our group. In this full-stack position, you will contribute significantly to the development and enhancement of our lending domain. Our team, distributed across Europe, values your expertise to enhance our platform and provide an outstanding experience for our clients. As a senior member, your technical skills and experience will propel innovation and growth in our channels domain. We emphasize teamwork and commitment within our distributed setup, making effective collaboration a cornerstone of our success.

Ebury seeks a Senior Fullstack Engineer to join the Lending team in Madrid or Malaga. This hybrid role involves four days onsite and one day remote each week. The team focuses on building and improving the company’s lending platform, aiming to deliver a strong client experience and advance platform capabilities. What you will do Design, build, and enhance features in the lending domain Work closely with colleagues across Europe to deliver reliable solutions Offer technical guidance as a senior engineer, supporting innovation and improvements Collaborate with team members to solve problems and deliver results Work environment Hybrid arrangement: 4 days onsite in Madrid or Malaga, 1 day remote Team members are distributed across Europe Collaboration and teamwork shape the team’s daily work

Join Rithum™, the world's most trusted commerce network that accelerates collaboration between brands, suppliers, and retailers to deliver exceptional e-commerce experiences. Our platform empowers over 40,000 businesses to achieve remarkable growth and optimize their operations across multiple channels, collectively representing more than $50 billion in annual GMV. At Rithum, we take pride in offering our customers comprehensive commerce, marketing, and delivery solutions, enabling them to craft optimized consumer shopping journeys from start to finish. Overview Our Engineering Team comprises highly skilled professionals dedicated to enhancing software quality, processes, and techniques. We value quality at every phase of development, blurring the lines between traditional QA and software engineering. We operate with a DevOps culture and a “you build it, you run it” mindset, pursuing operational excellence. As a Senior Fullstack Software Engineer within our Retailers business function, you will be a key contributor, responsible for writing efficient, maintainable code while mentoring less experienced engineers. Collaborating closely with lead designers and architects, you will help to drive our product's scalability, maintainability, and performance.

Join our dynamic team as a Fullstack Engineer specializing in Java and Angular. In this role, you will be responsible for designing and implementing robust software solutions that enhance user experiences and meet our clients' needs. Collaborate with cross-functional teams to drive innovation and ensure the successful delivery of projects.

About Us:At Wizeline, we are a leading global provider of AI-driven technology solutions, crafting innovative digital products and platforms that harness the power of data and artificial intelligence. Our mission is to empower businesses through transformative technology, enabling them to accelerate their market entry and achieve significant growth. We pride ourselves on our collaborative culture, where creativity and innovation thrive among a community of professionals dedicated to making a meaningful impact.With the right talent and visionary ideas, we believe that there are no limits to what we can accomplish together.Are You the Right Candidate?Excited about the opportunity? Let’s ensure you meet the qualifications we’re looking for:

About the Internship Flywire is looking for a Software Engineering Intern to support the Payments Platform team in València. This internship offers hands-on experience alongside skilled engineers, contributing to the development of financial technology products. What You Will Do Help design, code, and test software applications for the Payments Platform Work with team members to improve payment experiences for users Gain exposure to real-world software development in the fintech sector