Software Engineer (Platform Experience)

Key details

Full job description

Smadex is an ad-tech company processing over 4.5 million ad requests per second with response times under 100ms. The team builds the core platform ensuring data integrity and campaign solidity. The role involves integrating Agentic AI using LangChain and AWS Bedrock, building scalable backend services with Node.js, managing infrastructure security with AWS WAF and CloudFront, and owning the full development lifecycle. Requirements include a bachelor's degree or equivalent experience, full-time availability, experience with Node.js or Angular, understanding of modern web applications, technical literacy in frontend or backend development, problem-solving skills, curiosity for AI, familiarity with Git, and good English skills. Bonus points for Linux skills, Angular or Node.js experience, and AWS experience. The position is full-time, hybrid based in Barcelona, and requires legal work authorization in Spain. Benefits include a motivated team, competitive compensation, office amenities, flexible work arrangements, professional development, meal vouchers, health insurance, gym allowance, and social events.