Senior Software Engineer - Innovative Solutions at Cint | Barcelona

Join our dynamic team at Kantox as a Senior Elixir Software Engineer in beautiful Barcelona! As a key player in our software engineering team, you'll contribute to our innovative platform, primarily built on Ruby on Rails, while also leveraging Elixir and Elixir/Phoenix.We pride ourselves on a collaborative culture that embraces diverse perspectives and believes in continuous improvement. Our engineering philosophy is centered around teamwork, where we challenge each other to enhance our knowledge and practices.Your ResponsibilitiesEnsure the stability and performance of our codebase, addressing application issues proactively.Design, implement, and test new features while managing maintenance and upgrades.Conduct code reviews to enhance the skills of your peers, ensuring efficient and effective requirements.Participate in support rotations, providing timely assistance to colleagues.Contribute ideas for process improvements, engage in technical discussions, and maintain thorough documentation.Your ProfileMinimum 4 years of experience as a Senior-level engineer proficient in Elixir.A collaborative team player with the ability to build consensus while being open to feedback.Strong advocate for automated testing, with a solid understanding of test-driven development.Adept at breaking down complex features into manageable tasks for agile sprints.Committed to continuous improvement and self-driven with minimal supervision.Understanding of balancing short-term tasks with long-term sustainability.A passion for technology and engagement with fellow engineers to drive excellence.A University degree in Computer Science (Master’s preferred) or equivalent experience.

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.

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.

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.

Elevate Your Career with Zynga!At Zynga, we unite people through the joy of gaming. As a premier force in interactive entertainment and a distinguished label of Take-Two Interactive, our games have amassed over 6 billion downloads—bringing players from 175+ countries together through enjoyment, strategy, and a touch of friendly rivalry.Our exciting range of games includes everything from exhilarating casino experiences to grand strategy confrontations, challenging puzzles, and engaging social word games. Our beloved titles and recent releases encompass FarmVille™, Words With Friends™, Zynga Poker™, Game of Thrones Slots Casino™, Wizard of Oz Slots™, Hit it Rich! Slots™, Wonka Slots™, Top Eleven™, Toon Blast™, Empires & Puzzles™, Merge Dragons!™, CSR Racing™, Harry Potter: Puzzles & Spells™, Match Factory™, and Color Block Jam™—and many more!Founded in 2007 and headquartered in California, our teams stretch across North America, Europe, and Asia, collaboratively crafting unforgettable gaming adventures. Whether you’re strategizing, matching, or competing, Zynga is where entertainment converges with innovation—and where you can advance your career.Join us and immerse yourself in the world of play!Position Overview:We are in search of skilled software engineers to develop services for games that are cherished by millions of players daily worldwide. These services must be capable of scaling to accommodate high user traffic and be crafted with the utmost quality demanded by this competitive sector. We anticipate our developers to maintain cutting-edge technology while also contributing innovative ideas.What You’ll Do:Our backend applications utilize a variety of programming languages and technologies (Golang, PHP, AWS EC2, Kubernetes, etc.), so you should be enthusiastic about working with our legacy code, enhancing, maintaining, and continuously refactoring the backend of our games.Your role extends beyond just coding; you will collaborate with mobile developers, data analysts, and systems engineers to integrate your components, while also creating technical designs, documentation, and sharing knowledge, as well as training other team members.As a backend engineer, you will be integrated into our games team and work closely with game design, player experience, mobile, and other departments, participating in business decisions as part of our technology strategy.

Join cint as a Senior Software Engineer and play a vital role in shaping the future of our technology. In this dynamic position, you will be responsible for designing, developing, and maintaining high-performance software systems that enhance our products and services.We are looking for a passionate individual with a strong foundation in software engineering principles who is eager to collaborate within a team-oriented environment. Your contributions will directly impact our innovative solutions and drive the success of our company.

Join us at Fever, the premier tech platform dedicated to enhancing cultural and live entertainment experiences globally.Our mission is to democratize access to culture and entertainment. Utilizing our advanced technology and data-driven strategies, we are changing how audiences engage with live events. Every month, over 300 million individuals across more than 40 countries discover unforgettable experiences on our platform, while we empower event creators to innovate and grow their reach.We proudly collaborate with industry giants such as Netflix, F.C. Barcelona, and Primavera Sound, delivering internationally acclaimed experiences and backed by leading global investors. Impressive, isn’t it?To further our mission, we seek exceptional talent with a proactive mindset, eager to contribute to the future of entertainment. Are you ready to be part of this journey?The engineering team is the backbone of our user-friendly iOS and Android applications and website, responsible for developing, enhancing, and maintaining all Fever services, ensuring that users have outstanding experiences.About the RolePosition: Senior Software Engineer (Backend Platform)Location: SpainWe are looking for a highly skilled software developer with a proven track record of delivering exceptional results. A person who values code quality and emphasizes doing things correctly, not just completing tasks.Collaborate within an agile, cross-functional team alongside other talented software engineers and product designers.Develop production-quality code and implement solutions capable of handling significant traffic.Mentor team members through code reviews, architecture design sessions, and pair programming.Receive mentorship from colleagues in areas where you seek to grow.During your onboarding period, you will:Engage in a structured program designed to facilitate a smooth transition into your role.

About Thunes Thunes is revolutionizing the global money transfer landscape with its innovative Direct Global Network, enabling seamless real-time payments across over 130 countries and 80 currencies. Our network offers direct connections to more than 7 billion mobile wallets and bank accounts globally, alongside access to 15 billion cards through over 320 different payment methods including GCash, M-Pesa, Airtel, MTN, Orange, JazzCash, Easypaisa, AliPay, WeChat Pay, and many more. Thunes uniquely stands out with its expansive reach, advanced SmartX Treasury System, and robust Fortress Compliance Platform, providing network members with unparalleled speed, control, visibility, protection, and cost-effectiveness for real-time payments worldwide. Our prestigious clientele includes industry leaders such as Uber, Deliveroo, Grab, and WeChat, along with various fintechs, MTOs, PSPs, and banks. Headquartered in Singapore, Thunes operates in 14 global locations including Barcelona, Abidjan, Beijing, Dubai, Hong Kong, Johannesburg, London, Manila, Nairobi, Paris, Riyadh, San Francisco, and Shanghai. For more details, please visit: https://www.thunes.com/ Role Overview We are seeking a passionate Senior Software Engineer (Golang) to join our dynamic Engineering team in Barcelona. This role offers an exciting opportunity to work in the fast-paced FinTech sector, collaborating on a variety of projects and technologies within an innovative environment. The Engineering team is tasked with developing our core business products and deploying them efficiently. We design solutions, tools, and platforms that address business needs, focusing on provisioning, configuration, CI/CD, monitoring, SLA, performance, and uptime. Our meticulous approach ensures we closely collaborate with diverse stakeholders while managing millions of transactions and integrating numerous global partners.

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.

Qualifyze GmbH, founded in 2019, provides digital solutions that help life sciences organizations manage supply chain compliance. The company connects manufacturers, suppliers, and a network of more than 250 auditors and quality experts. With over 4,500 audits delivered across 85 countries, Qualifyze supports more than 1,500 pharmaceutical and healthcare clients worldwide. Their platform offers a broad supplier network and analytics tools to help clients maintain quality standards and reduce supply chain risks. Role overview The Senior Software Quality Assurance Engineer joins the Engineering team in Barcelona. This position focuses on maintaining the quality and performance of Qualifyze’s web applications. The role leads QA activities, develops test strategies, and works closely with cross-functional teams to deliver reliable products. Deep knowledge of testing methods, tools, and best practices is important for guiding the testing process and supporting product stability. Key responsibilities Develop and execute detailed test plans and test cases for web applications. Identify, document, and track defects using bug tracking systems. Collaborate with developers, product managers, and UX/UI designers to understand requirements and maintain high-quality deliverables. Perform regression, functional, and performance testing. Work with Product Managers to define clear, testable acceptance criteria for new features and improvements.

About Us:Are you ready to make a difference? Join our dynamic team and experience a workplace where work meets play!At Rover, we believe that every individual deserves the unconditional love of a pet. Our mission is to facilitate that experience through our innovative app and website, which connects pet parents with loving pet sitters and dog walkers across the US, Canada, and Europe. Since our inception in 2011, we have empowered a community of trusted pet care professionals to manage their own businesses with the support and security of a globally recognized company.Headquartered in Seattle, Washington, we collaborate closely with our teams in Barcelona, San Antonio, Spokane, and various remote locations. Our company has received accolades for being a premier workplace, including recognition in Seattle Business Magazine’s 100 Best Companies to Work For and Washington’s Best Workplaces in the Puget Sound Business Journal. As a fast-growing, agile organization, our leadership team comprises professionals from some of the most respected tech companies worldwide.At Rover, we cherish our pets as much as our people, and we are dedicated to creating a diverse, inclusive, and welcoming community for all pet lovers. This commitment starts with our employees and extends to the entire Rover community.This role is eligible for sponsorship and offers relocation assistance to Barcelona. This is a permanent, full-time position with a hybrid work model (office attendance required on Mondays and Thursdays at our Poblenou office in Barcelona).

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.

Role Overview haufegroup is hiring a Senior Software Engineer with strong Java experience for its Barcelona office. This role focuses on building and maintaining high-performance software that supports client requirements and drives product improvement. What You Will Do Design, develop, and maintain Java-based software solutions Work closely with cross-functional teams to enhance existing products Contribute to technical decisions and ongoing improvements Location This position is based in Barcelona.

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.

Scopely is on the lookout for an enthusiastic Senior Software Engineer to join our innovative Playgami team in the vibrant city of Barcelona on a hybrid working model! At Scopely, we are passionate about our mission and encourage a culture of play in our workplace, collaborating with talented colleagues, and engaging deeply with our player communities. As a global team of gaming enthusiasts, we are dedicated to developing, publishing, and innovating in the mobile games industry, connecting millions of players worldwide every day. The Playgami team is on a quest to create the premier SaaS gaming platform, striving to develop exceptional products for game production, operation, and insights. We power numerous award-winning franchises that are beloved by millions across mobile, web, and PC platforms.

As a Senior Software Engineer II, you will play a pivotal role in developing innovative information systems by analyzing operational needs and creating software solutions. You will lead a dynamic team of developers tasked with building and maintaining both new and existing websites. Your expertise in software engineering, coupled with your ability to communicate effectively and prioritize tasks, will be key to your success in this role. We seek a creative engineer who balances quality with customer-focused solutions, capable of managing multiple responsibilities in a fast-paced environment.

We are seeking a highly skilled and motivated Senior Software Engineer to join our dynamic team at Back Market, focusing on our PayOut and Fraud prevention systems. In this pivotal role, you will design, develop, and enhance software solutions that ensure secure and efficient payment processes while mitigating fraud risks.Your expertise will help us innovate and improve our systems, contributing to a robust and user-friendly experience for our customers. If you are passionate about software engineering and have a keen eye for security and efficiency, we want to hear from you!