The Role
As 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 Team
The 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 Do
- Collaborate 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.
- Global 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 tracing to monitor system health, ensuring our backend-heavy domain remains performant and reliable.
- Drive AI Efficiency: Leverage Agentic programming tools (like Claude Code) to accelerate refactoring and development workflows. Use it to deal with obvious problems and focus on the complex ones.
Who You Are
- Fullstack-Minded Backend Expert: You have deep experience in backend systems and feel comfortable switching between languages. While backend is your priority, you don't shy away from the frontend; practical expertise in React sis highly welcomed.
- Collaborative Team Player: You have a strong collaboration mindset. You believe that success happens together and you actively seek to mentor others and share knowledge across the team
- Systems Thinker: You are comfortable with event-driven systems, and have a proven track record of breaking down monoliths and managing system migrations.
- Quality Obsessed: You believe that code without a robust test suite (Unit, Integration, E2E) isn't finished.
- Pragmatic & Curious: You have a strong product mindset. You don’t just take tickets; you seek to understand the business impact of your architectural choices.
- Observability Advocate: You don't wait for a crash to know there's a problem; you build systems that tell you how they're performing.
Working at Cint
- Remote-First: Work from anywhere where Cint operates with a setup that supports your best work.
- High Autonomy: We trust our engineers to make sound decisions and own their work end to end.
- Global Impact: Your work powers a marketplace used by millions of people worldwide
Apply on company website Barcelona, Spain Remote (Global) Full-time
Cint is hiring a Senior Software Engineer
Job Details
Location Barcelona, Spain
Work mode Remote (Global)
Employment Full-time
Department Supply
Category other
Posted 4 months ago
Application On company website
About company
Discover the power of Cint Exchange, the largest online marketplace. Join Cint to revolutionize your market research experience.
Cint provides a global research marketplace that connects businesses with survey participants, enabling high-quality data collection and insights at scale. The platform supports researchers, brands, product managers, panel managers, academics, media agencies, and ad-tech platforms with tools for sourcing respondents, campaign measurement, and community management.
With a focus on data quality and global reach, Cint offers solutions across industries to accelerate insights and improve decision-making through trusted, consented audience data.