Senior Full Stack Engineer (Node.js / React)

Wymagania: - 5+ years of experience with JavaScript / Node.js - 3+ years with TypeScript and React (Next.js preferred) - Strong experience designing scalable APIs and backend systems - Solid understanding of databases (relational & NoSQL) - Experience with cloud environments (AWS or similar) - Good understanding of system design and software architecture - Experience working with high-load or data-heavy applications - Knowledge of web fundamentals (CORS, networking, browser behavior) - Familiarity with security best practices (OWASP) - Ability to work independently and take ownership - Strong communication skills (English C1+) Mile widziane: - Experience with microservices / serverless architectures - Experience with data pipelines, scraping, or data processing - Background in team leadership or mentoring - Exposure to AI / ML integrations or data-driven products O firmie: - As Venture Building, we create profitable technology companies from scratch. We collaborate with partners who share similar aspirations and are open to leveraging the potential of their networks, cultivated over years. We regularly launch new projects founded on long-term, amicable relationships with our associates. Zakres obowiązków: - Own end-to-end development of services and applications (design → implementation → deployment → maintenance) - Build and scale RESTful and GraphQL APIs - Design and optimize database schemas (SQL & NoSQL) - Work on high-performance, data-intensive systems - Contribute to architecture decisions and system design - Ensure code quality through testing (unit, integration, e2e) and best practices - Collaborate in Agile environment (2-week sprints, continuous delivery) - Mentor other engineers and support technical decision-making - Communicate clearly about technical solutions and progress Oferujemy: - Work on a scalable, data-rich platform with real business impact - High level of ownership and autonomy - Collaborative, experienced engineering team - Modern tech stack and engineering practices - Fast and efficient interview process