Backend Developer at Codeway | Barcelona

ABOUT CODEWAYAt Codeway, we are dedicated to developing and launching mobile applications that connect with millions of users swiftly.With a proven track record of delivering top-tier apps such as Cleanup (the leading iPhone storage cleaner worldwide), Retake AI (the foremost AI face editing app in the US), and Learna AI (the premier AI language learning app globally), along with over 50 additional applications in productivity, edtech, wellness, and entertainment, we are at the forefront of mobile innovation.Since our inception in 2020 in Istanbul, we have expanded into a dynamic team of over 300 individuals worldwide. With more than 400 million downloads, we are recognized as one of Europe’s fastest-growing consumer tech companies, and now, Barcelona is set to be the next major chapter in our journey.We are committed to building a robust team, efficient systems, and a vibrant culture that will propel Codeway into its next phase of growth. Join us for an exhilarating journey in the Barcelona tech landscape.POSITIONWe are currently seeking a highly motivated Spanish Learning Designer to be an integral part of our innovative product studio, Learna AI.In this role, you will create compelling Spanish lesson content and structured educational pathways rooted in effective language teaching methodologies. Your collaboration with product managers, AI engineers, and designers will be crucial in enhancing the learner experience, ensuring that our content is pedagogically sound, engaging, and seamlessly integrated into our app.This position is pivotal in expanding Learna's offerings beyond English, focusing specifically on Spanish language learning.Why Join Learna AI?Become a key player at the intersection of language education, AI, and innovative product development. This opportunity allows you to shape the experiences of thousands of learners globally as they practice and enhance their Spanish skills through real-time, AI-driven conversations.If you have a passion for teaching Spanish and are eager to create scalable learning experiences powered by AI, we invite you to connect with us.

About Codeway:At Codeway, we are dedicated to developing and launching mobile applications that quickly achieve global reach.With a proven history of creating top-tier applications—including Cleanup (the leading iPhone storage cleaner worldwide), Retake AI (the top AI face editing app in the United States), and Learna AI (the premier AI language learning app globally)—we have successfully launched over 50 applications across various sectors such as productivity, education technology, wellness, and entertainment, all contributing to the evolution of consumer mobile technology.Since our inception in 2020 from a small team in Istanbul, we have expanded to a global workforce of over 300. With our applications garnering more than 400 million downloads, we are rapidly positioning ourselves as one of Europe's fastest-growing consumer tech companies, with Barcelona being the next significant milestone in our journey.Rooted in Istanbul and expanding in Barcelona, we are cultivating the talent, systems, and culture necessary to propel Codeway into its next phase of growth. Join us for an exhilarating journey within the Barcelona tech landscape.About the Role:At the forefront of innovation, you will contribute to Retake, which utilizes proprietary AI models to enhance photographs while maintaining authenticity and realism. The challenge lies not just in the AI technology itself but in the productization of this capability—transforming complex, probabilistic systems into seamless, trustworthy, and culturally relevant user experiences. This position melds:◦ AI capabilities◦ Human perception◦ Consumer preferences◦ Usability for the mass marketYou will play a pivotal role in defining how millions of users engage with AI on a daily basis—without consciously realizing it. This is a senior-level position with substantial ownership in a rapidly scaling B2C product. Your work will extend beyond mere screen design to include shaping interaction models, establishing quality standards, and defining the optimal user experience for natural AI editing.What You'll Do:◦ Take complete ownership of the design process for key product initiatives—from initial concept through to final implementation.◦ Transform AI capabilities into user-friendly, one-tap interactions.◦ Define user understanding, control, and trust in AI edits.

About Codeway:At Codeway, we create and launch innovative mobile applications that engage millions of users globally.Our portfolio includes industry-leading applications such as Cleanup (the top iPhone storage cleaner globally), Retake AI (the leading AI face editing app in the US), and Learna AI (the best AI language learning app worldwide), in addition to over 50 other applications across sectors like productivity, edtech, wellness, and entertainment. We are committed to shaping the future of consumer mobile technology.Founded in 2020 with a small team in Istanbul, we have rapidly expanded to a global team of over 300 professionals. With more than 400 million downloads, we are among the fastest-growing consumer tech companies in Europe, and Barcelona marks the next significant milestone in our journey.As we establish our presence in Barcelona, we are dedicated to building a dynamic team, robust systems, and a vibrant culture that will propel Codeway into its next growth phase. Join us for an exhilarating journey in one of the most exciting tech environments in Barcelona.About the Role:In this pivotal role, you will bridge the gap between AI models, user behavior, and conversion.The quality of Retake’s output is directly influenced by the inputs provided by users. Your challenge will be to enhance users' willingness to provide these inputs through improved clarity, perceived value, and trust.You will oversee the entire first-session experience — from image uploads to the first enhanced output — and be accountable for the performance metrics that define success.This entails ownership of both the user experience and its associated metrics.You will be directly responsible for improving essential metrics such as upload completion rates, first-generation rates, activation, early retention, and paywall engagement.Collaborating closely with design, data, engineering, and our internal AI research teams, you will continuously refine user interactions with the model. By identifying user pain points and areas of confusion, you will prioritize improvements that reduce input requirements, enhance clarity, and boost output consistency.This role goes beyond superficial onboarding tasks; it's about creating a seamless user journey that drives engagement and satisfaction.

Codeway builds consumer apps that reach millions, with a focus on AI creativity, wellness, learning, and productivity. The company emphasizes user experience, speed, and quality, supported by strong in-house technology and data teams. Barcelona is an important hub for Codeway. The local team values ownership, quick action, and high engineering standards. Engineers work closely with products, influence key decisions, and see their contributions reach users quickly. Role overview The Growth Manager (Web) role brings together data analysis, campaign optimization, creative strategy, and partnership management. This position helps shape Codeway’s performance marketing and contributes directly to company direction. The team seeks someone who communicates clearly, understands data, brings initiative, and enjoys exploring new advertising ideas. Curiosity about growth in all its forms is valued. What you will do Own end-to-end marketing: Take full responsibility for a web product’s marketing, including user acquisition strategies from start to finish. Manage the creative pipeline: Generate and test ideas, propose hypotheses, oversee execution, and provide feedback. Run and optimize campaigns: Oversee and improve campaigns on platforms such as Google, Meta, TikTok, and others. Build external partnerships: Develop relationships with partners and agencies, and coordinate with ad network teams. Leverage data and dashboards: Design and track BI dashboards, monitor insights, and ensure campaigns meet KPIs as they scale. Collaborate with product: Work closely with product teams to understand user motivations and help shape monetization strategies. Drive growth initiatives: Lead additional projects that support company goals. Location This position is based in Barcelona.

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.

Join Our Team as an Affiliate Marketing ManagerAbout Codeway:At Codeway, we are passionate about creating and promoting mobile applications that make a difference. Our portfolio includes industry-leading apps such as Cleanup, Retake AI, and Learna AI, which have collectively garnered over 400 million downloads worldwide. Founded in 2020, we have rapidly expanded from a small team in Istanbul to over 300 professionals globally. Now, we are setting our sights on Barcelona to further fuel our growth and innovation in the consumer tech sector.Your Role:We view affiliate marketing not merely as a channel but as a key growth engine. As the Affiliate Marketing Manager, you will spearhead our affiliate strategy, cultivating lucrative partnerships and unlocking new revenue streams. You will be responsible for building a robust affiliate ecosystem, managing relationships, and driving performance optimization.

Role Overview Codeway is hiring an Employee Experience Specialist in Barcelona. This role focuses on improving the workplace environment and supporting employee satisfaction. The goal: help shape a culture where employees feel engaged, productive, and included. What You Will Do Work with teams across the company to design and deliver initiatives that enhance daily work life Identify and address employee needs to strengthen engagement and belonging Support efforts to boost organizational effectiveness through people-focused programs What Matters Here Genuine interest in people and workplace culture Commitment to making Codeway a place where employees thrive Collaboration with colleagues from different departments

Role Overview Keywords International is hiring an In-House Spanish Linguist based in Barcelona, Catalonia. This role focuses on supporting localization and translation projects for a range of clients and content types. What You Will Do Review and refine Spanish translations for accuracy and cultural relevance Collaborate with team members to deliver high-quality localization services Apply a strong attention to detail to ensure consistent, precise language use What We Look For Fluency in Spanish and strong command of language nuances Experience or interest in translation and localization Keen attention to detail Location This is an in-house position based in Barcelona, Catalonia, Spain.

Become part of the revolutionary AI photo application transforming perceptions of beauty worldwide.For years, photo editing apps have largely been indistinguishable, filled with filters and artificial enhancements. Enter Retake, the innovative AI photo app that is reshaping how individuals perceive and showcase themselves online. In just two short years, we’ve achieved over 35 million downloads and exceeded $40 million in annual recurring revenue, establishing ourselves as one of the leading face editing apps globally. We are now seeking a Growth Manager to help us accelerate our global growth, enhance our creative strategies, and launch campaigns that engage millions every month.About Retake & CodewayRetake emerged as a response to the outdated photo editing applications, demonstrating that genuine innovation in this space is not just possible, but necessary. While competitors remain focused on superficial filters and artificial edits, Retake is setting a new benchmark: authentic, natural, and effortless photos, powered by advanced AI technology.Currently, Retake is the fastest-growing face editing app in the world, boasting a global user base and a proprietary AI model that outperforms all competitors. Our mission is straightforward: to make photo editing more engaging, authentic, and accessible for millions. Retake is proud to be part of Codeway Group, one of Europe’s most rapidly growing consumer app companies, on the verge of surpassing $300 million in annual revenue across a diverse range of offerings in AI creativity, wellness, education, and productivity.About the Role:Executing campaigns is easy for many; however, few can truly drive growth. Your role will transcend beyond mere impression purchases to effect real change, integrating data analysis, creativity, and curiosity to elevate a global AI brand.As a Growth Manager at Codeway, you will spearhead the strategy, execution, and performance metrics for one of the world’s most rapidly expanding photo applications. We seek a dynamic, data-driven, and innovative marketer who is excited to experiment, learn, and grow swiftly.

About Codeway Codeway develops and launches mobile apps used by millions worldwide. The company’s portfolio includes Cleanup, a leading iPhone storage cleaner, Retake AI, a top-ranked AI face editing app in the US, and Learna AI, a widely used AI language learning tool. With more than 50 apps across productivity, education, wellness, and entertainment, Codeway has become a significant player in consumer mobile technology. Since its founding in 2020 in Istanbul, Codeway has grown from a small team to over 300 employees across the globe. The company has surpassed 400 million downloads and is recognized as one of Europe’s fastest-growing consumer tech firms. Barcelona is now a key location in Codeway’s ongoing expansion. With strong roots in Istanbul and a growing presence in Barcelona, Codeway is building a collaborative culture and strengthening its systems to support the next stage of growth. The team in Barcelona is central to this new chapter in the company’s journey.

Codeway builds advanced consumer applications, bringing together a diverse team to drive growth in a global market. The Global Mobility Specialist joins the People team in Barcelona and works closely with leadership to support Codeway’s international expansion. Role overview This position designs, implements, and manages programs for international hiring, relocations, and cross-border workforce planning. The Global Mobility Specialist connects HR, Legal, Finance, and Talent, balancing policy development with hands-on execution. The aim is to keep mobility practices compliant, scalable, and focused on employees, always in line with Codeway’s people and business strategies. Key responsibilities Oversee immigration processes for international hires and internal transfers, including visa applications, work permits, and residency authorizations. Collaborate with external immigration providers and legal consultants to ensure compliance with Spanish and international laws. Monitor regulatory changes and assess their impact on mobility programs and workforce planning. Create, document, and update global mobility and relocation policies to match business needs and market standards. Define eligibility criteria, mobility types, and approval procedures to ensure fairness and consistency. Develop governance structures and internal guidelines for all mobility-related initiatives. Manage end-to-end logistics for relocations, including coordination with relocation vendors. Location This role is based in Barcelona.

About Codeway:At Codeway, we are dedicated to creating and publishing innovative mobile applications that connect with millions of users rapidly.With a proven history of developing category-leading applications, our portfolio includes successful titles such as Cleanup (the leading iPhone storage cleaner worldwide), Retake AI (the premier AI face editing app in the US), and Learna AI (the top AI language learning app globally), along with over 50 other applications spanning productivity, edtech, wellness, and entertainment sectors.Since our inception in 2020 with a small team based in Istanbul, we have grown into a thriving global workforce of over 300 individuals. With more than 400 million downloads, we are among the fastest-growing consumer tech companies in Europe, and our Barcelona office marks an exciting new chapter in our journey.As we expand from our roots in Istanbul to Barcelona, we are building a dynamic team and cultivating a culture that will propel Codeway into its next phase of growth. Join us on this exhilarating journey in the Barcelona tech landscape.About the Role:At Codeway, we encourage bold creativity. Instead of simply refining existing ideas, you will have the chance to create groundbreaking work that sets trends. Your designs will reach vast audiences, drive substantial advertising investments, and inspire others in the industry.You will be stationed in Barcelona, collaborating closely with our Growth and Creative teams to transform bold concepts into stunning visuals and motion assets that propel the success of our innovative app. Embrace rapid testing, swift learning, and the use of data to convert ideas into industry-defining successes.Key Responsibilities:◦ Innovate from insights. Collaborate with the Growth and Creative teams to develop bold, testable ideas that evolve into successful outcomes.◦ Create outstanding visual assets. Design high-impact static and motion graphics for user acquisition and marketing initiatives.◦ Expertly utilize design tools. Proficiently use After Effects, Photoshop, Figma, Illustrator, and Premiere Pro to produce exceptional work.◦ Harness AI technologies. Leverage advanced AI tools to enhance your creative output.

Join our dynamic team as a Service Desk Networking Specialist in Barcelona, where you will play a vital role in ensuring the seamless operation of our communication networks. Your responsibilities will include:Ensuring optimal performance and availability of communication networks for users, including staff, clients, customers, and suppliers.Installing, maintaining, and supporting our LAN, MAN, and WAN networks.Maintaining security devices such as firewalls and proxies to safeguard our private networks.

Join Our Team at FundamentalFundamental is at the forefront of artificial intelligence, redefining enterprise decision-making processes. With a foundation established by alumni from DeepMind, we have created NEXUS – the premier Large Tabular Model (LTM) designed specifically for structured data that influences critical business decisions. Supported by top-tier investors and trusted by Fortune 100 companies, we are unlocking unprecedented value for businesses, empowering them with predictive capabilities.At Fundamental, you will tackle unique technical challenges in developing foundational models, contributing to transformative technology that reshapes decision-making for the world’s largest enterprises. This is a chance to become part of a pioneering company and influence the future of enterprise AI.

About HappyRobotHappyRobot is pioneering the future of enterprise operations with our AI-native operating system designed for the real economy. We create a seamless connection between intelligence and action, enabling businesses to manage complex, mission-critical operations autonomously. Our innovative platform leverages real-time insights, specialized AI agents, and a central orchestrating intelligence to optimize processes across various sectors.Our AI operating system accumulates knowledge, enhances efficiency at every tier, and adapts over time. We are initially focusing on supply chain and large-scale industrial operations, where speed, resilience, and ongoing improvement are paramount—allowing human talent to concentrate on higher-value strategic endeavors.To learn more about our mission, please read our Manifesto. HappyRobot has successfully raised $62 million to date, including a recent $44 million Series B funding round in September 2025. Our esteemed investors include Y Combinator (YC), Andreessen Horowitz (a16z), and Base10, who support our vision to transform enterprise operations. We are investing these funds into cultivating a world-class team of individuals driven by a passion for innovation and excellence in a dynamic, fast-paced environment. If this sounds like you, we would love to have you on board at HappyRobot.About the RoleAs a Machine Learning Engineer, you will be at the forefront of developing AI models that facilitate human-like communication. You will operate at the convergence of speech, language, and intelligence—translating advanced research into real-time, scalable systems that power our flagship products. This role presents a unique opportunity to significantly influence both the technology and trajectory of our company as one of our first ML hires. You will oversee the complete lifecycle of machine learning systems, from design to deployment, ensuring we remain leaders in AI innovation.Design, develop, and maintain scalable ML systems, encompassing data ingestion, preprocessing, training, testing, and deployment.Create and refine end-to-end ML pipelines (data collection, labeling, training, validation, monitoring) to guarantee reliability and reproducibility.Implement robust MLOps practices, including model versioning, experiment tracking, CI/CD for ML, and continuous production monitoring.Collaborate closely with product and engineering teams to integrate and deploy models into real-time applications, focusing on efficiency and scalability.

Join the dynamic TransPerfect TechOps team, a key contributor to our company's growth and innovation for over a decade. We specialize in delivering advanced technology and services that enhance the experiences of our clients and colleagues alike. From streamlining workflows to establishing foundational services for our GlobalLink platform, our mission is to create user-friendly interfaces that simplify complex systems for all users.About the Position:We are in search of a talented Content Designer with a strong background in copywriting to become a vital part of our Experience Design Team. This role requires a unique blend of marketing acumen and UX writing expertise to craft captivating content across all digital platforms, from product descriptions to marketing campaigns.Key Responsibilities:Content Development, Copywriting, & StrategyCreate clear, engaging content for digital products and marketing collateral.Develop effective micro-copy for product interfaces, ensuring tonal consistency across various user journeys.Establish and maintain content style guides and best practices.Craft persuasive copy for marketing campaigns, case studies, and sales initiatives.Optimization & ResearchLeverage data and user feedback to enhance content performance.Conduct content audits and execute improvements as needed.Engage in user research to evaluate content effectiveness.Implement SEO best practices and optimize content for search engines.CollaborationCollaborate closely with design and product teams throughout the lifecycle of projects.Work with cross-functional teams (consulting, marketing, etc.) to produce impactful content and materials.Facilitate content workshops and training sessions.Ensure a consistent user experience across all platforms.

About UsAt Perk, we revolutionize the way organizations manage travel and expenses through our intelligent platform. Formerly known as TravelPerk, our mission is to eliminate tedious manual tasks that hinder productivity. We automate processes from travel bookings to expense management and invoice processing, allowing teams to focus on what truly matters. With our innovative tools, we aim to reduce the 7 hours of lost productivity per employee each week, a challenge that costs companies $1.7 trillion annually.Trusted by over 10,000 companies globally, including giants like Wise, On Running, and Breitling, we have grown into a thriving team of more than 1,800 people across 12 offices worldwide, with headquarters in London and Boston. Our goal is to combine innovation, control, and simplicity to enhance workplace experiences.Driven by core values such as ownership, delivering a 7-star experience, and teamwork, we prioritize curiosity and a growth mindset to unlock potential. Our diverse talent team consists of leading professionals from the travel and SaaS industries, representing more than 70 countries. If you're eager to make a significant impact and shape the work experiences of millions, we would be thrilled to have you join our team.To learn more, visit www.perk.com.

airapps is looking for a Product Designer in Barcelona to help shape the next generation of their applications. This position centers on designing products that put users first, with a focus on improving both experience and engagement. Role overview Work closely with colleagues from different teams to turn design concepts into real products. The goal: deliver applications that are easy to use and meet high standards for usability and functionality. What you will do Create product designs that prioritize user needs and satisfaction. Collaborate with cross-functional teams throughout the design process. Ensure each product meets usability and functionality goals. Location This role is based in Barcelona.

Hello! We are Fever, the premier tech platform for culture and live entertainment.Our goal? To democratize access to culture and entertainment worldwide. Utilizing our state-of-the-art technology and data-driven strategies, we are transforming how audiences connect with live events. Each month, our platform motivates over 300 million users across more than 55 countries to discover extraordinary experiences, while also providing event creators with data and tools to innovate and expand their reach.Our achievements? Partnerships with renowned industry leaders like Netflix, F.C. Barcelona, and Primavera Sound, delivering internationally acclaimed experiences, and support from top global investors! Quite impressive, wouldn't you agree? To further our mission, we seek passionate individuals with a hands-on approach who are excited to influence the future of entertainment! Ready to embark on this journey?Now, let's delve into the specifics of this role and how you can contribute to Fever's mission.The engineering team is responsible for creating, developing, improving, and maintaining all Fever services, ensuring that more people can enjoy amazing experiences through our user-friendly iOS and Android apps and website.About the RoleWe are in search of a Product Designer to revamp, expand, and govern our existing Design System into a comprehensive, enforceable multibrand product platform that supports various products and devices (web, mobile, and digital kiosks). This role operates at the intersection of Design, Engineering, and AI tooling. You will be responsible for transforming our current Design System into a scalable, enforceable product infrastructure that:Minimizes design and engineering reworkMaintains brand and UX consistency at scaleSpeeds up delivery through reusable componentsFacilitates AI-assisted workflows without compromising qualityYou will collaborate with a dedicated Engineering platform team to ensure design components are effectively implemented in production and embraced across teams.Initially, the role will focus entirely on Design Systems. Once governance and foundational elements are established, the role will transition into a balanced model: maintaining system ownership while integrating into product teams to test and enhance it in real-world scenarios.