Company DescriptionWho We AreCint is a pioneer in research technology (ResTech). Our customers use the Cint platform to post questions and get answers from real people to build business strategies, confidently publish research, accurately measure the impact of digital advertising, and more. The Cint platform is built on a programmatic marketplace, which is the world's largest, with nearly 300 million respondents in over 150 countries who consent to sharing their opinions, motivations, and behaviours.We are feeding the world's curiosityJob DescriptionThe RoleAs a Senior Software Engineer in our Supply domain, you won't just be writing features; you will be architecting the future of our platform. In 2026, our primary mission is foundational modernization. We are leading the charge in modernizing our architecture; shifting from legacy systems and transitioning our ecosystem from GO toward a unified Java/Spring stack.The TeamThe Supply domain is composed of talented engineers distributed in multiple countries across Europe and the US.



We build the critical infrastructure that manages and standardizes the flow of survey data to our global network of suppliers. We believe in strong collaboration and team work, high quality engineering, and providing the best possible experience for our customers.What You'll DoCollaborate on this modernization journey: Design and implement patterns for legacy displacement to move domains out of our monolith with zero downtime.Bridge Tech Stacks: Build new services and help transition others from .NET to Spring while navigating and contributing to other codebases.Product Collaboration: Partner with product managers to question and form requirements, understand the "Why", and help shape a roadmap that balances technical debt with new value.Integral Collaboration: Communicate effectively across timezones. Your written documentation and async communication will be the glue for our distributed team.Master Observability: Use Grafana and modern tr

📌 Senior Software Engineer (Barcelona)
🏢 Cint
📍 Barcelona