Senior Backend Engineer (f/m/x)

Team: IT

Location: Spain

Commitment: Full-time

Workplace Type: remote

Accountabilities

• Design, build, and maintain scalable backend services, APIs, and core platform functionalities that support marketplace operations.
• Own the development and implementation of new features, services, and technical solutions from concept through production.
• Develop reliable and maintainable systems using modern backend technologies, distributed architectures, and service-oriented design principles.
• Manage production systems by monitoring performance, ensuring reliability, and proactively improving operational processes.
• Integrate third-party systems and external APIs while maintaining security, scalability, and performance standards.
• Establish and promote engineering best practices, technical standards, documentation processes, and high-quality development approaches.
• Collaborate closely with engineers, product managers, designers, and business stakeholders to deliver impactful solutions.
• Contribute to engineering culture through mentoring junior colleagues, supporting onboarding, and sharing technical knowledge.
• Participate in technical discussions, provide insights, and help drive continuous improvement across the engineering organization.
• Occasionally contribute to frontend-related tasks when needed to support product delivery.

Requirements

• 7+ years of experience designing and building scalable backend services in modern production environments.
• Strong proficiency in Go and deep understanding of distributed systems and service-oriented architectures.
• Solid experience with SQL, relational database design, and backend data management.
• Experience building reliable, high-performance systems and working with cloud-based infrastructure.
• Familiarity with frontend technologies and the ability to contribute to basic frontend tasks when required.
• Strong ownership mindset with the ability to work independently, navigate complex systems, and take initiative.
• Excellent problem-solving skills with curiosity and enthusiasm for experimenting with new technologies, frameworks, AI tools, and engineering practices.
• Strong communication skills with the ability to collaborate effectively in distributed, multicultural teams.
• Humble, open-minded, and collaborative approach with a focus on knowledge sharing and continuous learning.
• Excellent English skills and ability to work within European time zones.
• Degree in Computer Science or a related field, or equivalent practical experience, is preferred.
• Experience with technologies such as gRPC, PostgreSQL, Redis, RabbitMQ, Google Cloud Platform, Kubernetes, or similar modern infrastructure tools is an advantage.

Benefits

• Fully remote work environment with the flexibility to work from anywhere in Europe.
• Opportunity to work from a modern office environment when desired.
• High level of autonomy and trust with flexible working arrangements.
• Dedicated learning and development budget for courses, conferences, and professional growth opportunities.
• Access to personal development and mental health support resources.
• Internal workshops and knowledge-sharing initiatives to support continuous learning.
• Regular team gatherings, office weeks, and collaboration events.
• Inclusive and transparent culture focused on feedback, innovation, and continuous improvement.
• Opportunity to work on meaningful technology challenges with a global impact.
• Supportive environment that values ownership, creativity, and engineering excellence.