Senior Software Engineer at affinity | Barcelona

Join Affinity as a Senior iOS Engineer, where you'll be at the forefront of developing innovative iOS applications that enhance user experiences. Collaborate with cross-functional teams to design, build, and maintain high-performance mobile applications. Leverage your expertise in Swift and Objective-C to deliver robust solutions that meet the needs of our users.

The Role: Join our dynamic support team at Affinity as a Technical Support Engineer. This role is perfect for someone with a blend of technical prowess and exceptional communication skills, committed to providing outstanding support for our B2B SaaS CRM platform. You will serve as an essential link between our customers and engineering teams, tackling intricate technical challenges while contributing to the ongoing enhancement of our support organization. What You Will Be Doing: Handle customer inquiries and resolve technical issues promptly through video calls, emails, or chat. Troubleshoot software and API-related problems, guiding customers through technical resolutions. Engage with webhooks, APIs, and various integrations to ensure seamless functionality. Assist customers with setting up or managing Single Sign-On (SSO) integrations. Collaborate with engineering teams to address complex customer challenges and escalate issues as needed. Document customer interactions and technical issues to enhance our knowledge base and internal resources. Participate in periodic on-call shifts as required.

Join Affinity as a Software Engineer II, where you will contribute to innovative projects in a dynamic tech environment. You will collaborate with cross-functional teams to design, develop, and implement cutting-edge software solutions. This role is perfect for individuals who are passionate about technology and eager to take their skills to the next level.

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 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.

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 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).

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.

Role overview Cint seeks a Senior Software Engineer in Barcelona to join the Research and Development team. The focus is on designing and building software solutions that support data collection and market insights. Engineers in this group work closely to refine current systems and create new products. What you will do Work with colleagues to design, develop, and maintain software for data-driven products Improve existing platforms and help shape the architecture of new solutions Use technical skills to address complex challenges and advance technology for market research Location This position is based in Barcelona.

At Hudl, our mission is to build exceptional teams. We attract top talent to foster an environment where you can continuously learn and grow alongside passionate professionals. You're empowered to approach your work in your own unique style while pushing the boundaries of innovation. Our commitment to a supportive culture is evident, as reflected in our recognition as one of Newsweek's Top 100 Global Most Loved Workplaces.We pride ourselves on being the backbone of the sports community, facilitating the lifelong lessons derived from teamwork, dedication, and the inspiration of great coaches. Our solutions empower athletes and teams worldwide to enhance their game through video capture, data analytics, and highlight sharing.Are you ready to make a difference with us?Your RoleWe are seeking Senior Engineers to become integral members of our cross-functional product teams within the Human Performance group. This team is dedicated to creating innovative solutions that profoundly influence how athletes and teams train, compete, and strive for peak performance.As a Senior Engineer, you will:Collaborate with Cross-Functional Teams: Engage with Engineering, Quality Assurance, Product, Design, and Scrum teams to develop full-stack web features.Drive Development and Delivery: Your team will have the autonomy to significantly impact the product area, listening to customer needs to deliver transformative features that elevate the user experience for coaches and athletes.Experiment with New Ideas: At Hudl, we believe in rapid iteration, deploying updates hundreds of times a day. You will have the chance to propose innovative solutions to complex technical challenges and mentor less experienced engineers.Provide Mentorship: Share your knowledge and best practices in development, guiding others in planning, designing, and executing complex projects.

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.

ANYbotics is an innovative and rapidly expanding technology company committed to revolutionizing the field of mobile robotics across diverse sectors. We invite you to join our dynamic and talented team of over 200 professionals, working on pioneering robotic technologies.The OpportunityWe are searching for a Senior Backend Engineer to become a vital member of our agile software engineering team. In this role, you will be responsible for architecting and developing the backend for the next generation of robotic applications for our flagship product, ANYmal. Collaborating closely with your teammates and leading robotics engineers, you will design and implement sophisticated software solutions that empower ANYmal to undertake increasingly complex tasks.The APIs developed by your team will lay the groundwork for strategic partnerships with software and cloud technology providers, facilitating seamless integration into our clients' facility management systems and enabling the creation of comprehensive robotic inspection solutions.At ANYbotics, we continually innovate to enhance the performance and capabilities of our robots, helping clients derive valuable insights from their facilities and processes with efficiency and ease. Leverage your technical expertise in web technologies to contribute to making our robots smarter, more reliable, and user-friendly.The Market & Our TechnologyANYbotics is at the forefront of transforming the industrial landscape by integrating robotics into a wide array of groundbreaking applications that were previously unattainable (refer to our case studies in sectors such as Chemicals, Oil & Gas, Railways, Wind Energy, Mining, and Construction). Our clientele consists of major asset operators and service providers in the industrial sector, pioneering the use of robotic technology for inspection and maintenance tasks. Our solutions facilitate autonomous routine inspections and monitoring of extensive industrial facilities, enhancing safety and productivity. We engineer a variety of customized hardware systems, including the complete robotic platform, actuators, sensors, inspection payloads, charging systems, and software, achieving exceptional mobility, autonomy, and inspection capabilities, often powered by AI. Our technology has been validated through long-term pilot projects, and we are now scaling our solutions for commercialization, deploying them directly in operations at client facilities across the globe.About UsANYbotics is a pioneering robotics firm specializing in advanced autonomous systems. Following a successful Series B funding round, we are poised for significant growth...

About UsPerk, formerly known as TravelPerk, is a cutting-edge platform dedicated to revolutionizing travel and spend management. We streamline cumbersome manual tasks, providing automated solutions for travel bookings, expense management, invoice processing, and beyond. Our mission is to eliminate inefficiencies, helping businesses reclaim valuable time and boost employee morale while fostering innovation.Trusted by over 10,000 companies worldwide, including industry leaders like Wise, On Running, Breitling, and Fabletics, we are addressing the staggering issue of lost productivity—estimated at $1.7 trillion—by tackling the 7 hours of wasted time each employee faces weekly. Established in 2015, Perk has rapidly expanded to a global workforce of more than 1,800 individuals across 12 offices, with headquarters located in London and Boston. We blend innovation, control, and simplicity to transform workplace dynamics and improve employee experiences.Our values drive us—ownership, a commitment to delivering a 7-star experience, and teamwork are at our core. We prioritize curiosity, purpose, and a growth mindset over mere knowledge, ensuring our team members reach their full potential. Our talent pool comprises top professionals from the travel and SaaS sectors, representing over 70 countries. If you're passionate about making a real difference and enhancing the work experience for millions, we want you on our team.Explore more about us at www.perk.com.

Join our exceptional team of developers in beautiful Barcelona, where you can enjoy ocean views from your workspace! As a Senior Front End Software Engineer, you will play a crucial role in designing the user interface of our award-winning FX platform, collaborating closely with our UX, Product, and Tech teams.We are looking for a skilled developer who is proficient in frameworks such as Angular, React, Vue, or similar technologies and is eager to dive into the world of Ember. Previous experience with Ember is not required, as we are committed to providing you with the necessary resources and support to excel in this area, with the potential for you to teach us along the way!Your responsibilities will extend beyond working with Ember. We are actively developing a platform-agnostic component library using Stencil.js and web components, aimed at creating reusable components that can be integrated seamlessly across our growing UI ecosystem. This ecosystem includes frameworks like Ruby on Rails (RoR), Phoenix, and others that we plan to adopt. Our backend primarily utilizes Ruby on Rails, with additional services crafted in Elixir (Phoenix) to manage specific functionalities.At Kantox, we foster a culture of self-motivation and continuous growth. We encourage questions and view mistakes as valuable learning experiences. With a flat management structure, we trust in the expertise and contributions of every team member. You will be part of a highly motivated, diverse, and multidisciplinary team that considers software development to be a collaborative sport.Your mission within KantoxAs a Senior UX/Front-End Developer, your main objective will be to guarantee seamless and intuitive user interactions within our platform. You will work closely with the UX team during daily Stand-Up Meetings (SUMs) to ensure alignment on our shared vision. In this role, you will provide support to the team lead, offering guidance and mentorship to junior and mid-level engineers. Active participation in collaboration with product, QA, and other technical teams will be necessary for reviewing requirements, drafting specifications, and coordinating development and releases. We are looking for a candidate who shows the potential to eventually step into the role of Tech Lead.While English is the primary working language, our multicultural environment often features Spanish, Catalan, French, Russian, Italian, Bulgarian, and many other languages in common areas. A background in finance is not required, as we provide comprehensive training to help you understand our platform and its underlying processes.

About AbacumAbacum stands at the forefront of Business Planning solutions tailored for finance teams. Our innovative platform automates reporting, enhances collaboration, and streamlines planning and forecasting, empowering finance teams to transition from mere number crunching to making strategic decisions.Founded in 2020 by visionary former CFOs, we have rapidly expanded to a global workforce of 100+ talented individuals representing 30+ nationalities. With our headquarters in New York and additional offices in London and Barcelona, we are proud to serve esteemed clients such as Dish Networks, Strava, BetterUp, Kajabi, JG Wentworth, Abridge, Cortex, among many others.Having successfully raised over $100 million, we recently concluded our $60M Series B funding round in June 2025, led by Scale Venture Partners with strong backing from Cathay Innovation, Y Combinator, Atomico, Creandum, and angel investors from Adyen, Zapier, and Twitch.Our ambitious mission is to redefine Business Planning—join Abacum and be part of this groundbreaking journey!We are looking for...An enthusiastic Senior Frontend Engineer who thrives on solving intricate, market-defining challenges—such as developing a real-time, multidimensional calculations engine!This is a rare opportunity to engage in an agile coding environment, directly influence our product, and shape our engineering culture and technical design.If you are someone who takes pride in ownership of your work, learns swiftly, and is eager to contribute to something extraordinary, we invite you to apply!

About Us:Are you ready to make a difference? Join our passionate team at Rover, where work meets play!At Rover, we believe that everyone should experience the unconditional love of a pet. Since our founding in 2011, we have dedicated ourselves to connecting pet parents with caring pet sitters and dog walkers through our innovative app and website. Our platform spans neighborhoods across the US, Canada, and Europe, empowering a community of trusted pet care professionals to build their own businesses with the support of a global organization.Headquartered in Seattle, Washington, we collaborate closely with our vibrant teams in Barcelona, San Antonio, Spokane, and remote locations. Recognized as one of the best places to work, Rover has earned accolades from Seattle Business Magazine and Puget Sound Business Journal. As a fast-growing, agile company, our leadership team is comprised of veterans from some of the world's most esteemed tech companies.At Rover, pets are valued as much as our human team members. We strive to enhance the joys of pet ownership while nurturing a diverse, inclusive, and welcoming environment for our employees.This is a full-time, permanent, hybrid role (Mondays & Thursdays in our office at Poblenou, Barcelona).Software Engineer PositionAre you a dedicated and detail-oriented Software Engineer eager to leverage your technical expertise to develop customer-centric products that enhance the lives of pet owners? We are seeking an enthusiastic engineer to join our Barcelona team.In this role, you will be a vital contributor to our platform, working alongside cross-functional teams to solve complex technical problems and deliver robust, scalable solutions. If you are passionate about honing your craft and contributing to a supportive community, we would love to hear from you!

About G2 - The CompanyG2 stands as the largest and most reputable software marketplace globally. By joining G2, you become a part of a leading team dedicated to empowering businesses with reliable insights and strategies derived from real software users, helping them to maximize their potential.In an exciting development, we have collaborated with Capterra, SoftwareAdvice, and GetApp to create a comprehensive online resource for software data and insights. With over 200 million annual visitors and 6 million verified reviews, we have established ourselves as the go-to platform for software buyers, enabling them to make informed and swift decisions.We're just beginning our journey! Our mission is to revolutionize the global B2B software landscape and establish a trusted data foundation for both software buyers and sellers in the AI era.Are you excited? Join us as we strive to reach our next peak!About G2 - Our PeopleAt G2, our identity and actions are rooted in our PEAK values— (Performance + Entrepreneurship + Authenticity + Kindness). Being part of G2 means engaging with a value-driven, global community that climbs peaks together. We celebrate each other's victories, learn from setbacks, and provide support during challenging times. Our ambition and entrepreneurial spirit encourage us to tackle challenging projects that foster growth and learning.You will join a diverse, global team of intelligent, dedicated, and kind individuals, each with unique talents and aspirations. Central to our culture are our people-led ERGs, which celebrate the diverse identities within our team. We are committed to our DEI and philanthropic initiatives (such as our G2 Gives program), which inspire us to become better individuals.

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.

About SumUp At SumUp, we champion the everyday hero—the small business owner. Our mission is to empower these individuals by providing innovative tools that simplify the management of their businesses. With a founder’s mindset and a commitment to teamwork, our diverse teams across Europe, South America, and the United States collaborate to help our partners succeed in their passions. Team Description The Lending team is dedicated to delivering a fair, straightforward, and timely lending experience for small merchants. We enable small business owners to take control of their financing, whether they are looking to fund growth, manage cash flow, or cover operational expenses. Our goal is to ensure that capital is accessible to our merchants and consumers at all times. We are on the lookout for talented Engineers to enhance and maintain the backend of a crucial aspect of our lending operations: Dunning & Collection. This process involves engaging with our merchants, developing repayment plans, and offering alternative payment solutions to help our customers meet their financial commitments to SumUp. Your responsibilities will include designing, implementing, and testing new features, as well as optimizing the performance and scalability of our existing systems. What You’ll Do Enhance the functionality and user experience of SumUp’s lending platform to meet the diverse needs of our merchants. Design and build new microservices for various use cases in the Dunning & Collection journey, taking into account market-specific nuances. Optimize system performance and scalability. Develop integrations with external partners to fuel growth. Contribute to building a high-performing engineering team. You’ll Be Great for This Role If 1-3 years of experience as a Software Engineer. Proficiency in Golang or other object-oriented programming languages such as Java, Kotlin, or Python. Experience in creating and maintaining simple components in React. Familiarity with RESTful API design and development. Proficient in Git and Git workflows. Experience with SQL and NoSQL databases, including PostgreSQL. It Would Be a Plus If You Have Strong English communication skills for effective collaboration.