One of our partners, a leading international tech company in the eCommerce sector, is looking for Backend Engineers with strong Golang experience to join their growing team in Barcelona. This is an opportunity to work on a high-traffic general platform, tackling complex challenges and contributing to the evolution of a scalable and resilient architecture. What you’ll do Design, develop, and maintain scalable backend systems using Golang. Collaborate with QA to ensure the quality, stability, and reliability of new features. Continuously refactor and optimize code for performance, maintainability, and scalability. Monitor production systems, proactively improving stability and performance. Participate in code reviews and contribute to thorough technical documentation. What we’re looking for Solid professional experience as a Backend Engineer with Golang. Strong background in building APIs and working with scalable, distributed architectures. Familiarity with cloud environments (AWS: S3, SNS, SQS) and container orchestration (Kubernetes) is a plus. Knowledge of PHP/Symfony is valued but not required. Strong communication skills in English and a collaborative team mindset. Perks and benefits Hybrid work model with 4 days onsite at our office in Poblenou, Barcelona. Up to 32 vacation days based on tenure (starting with 28 ). Option to work up to 10 days/year remotely from another EU country. Private health insurance. Discounts on products and fitness platforms. Flexible compensation benefits (meal, transport, childcare vouchers). Continuous learning support ( language courses, LinkedIn Learning ). Mental health and well-being support. Employee Share Purchase Plan .