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Principal FS Engineer – Crypto & AI (100% Remote) at Pragmatike. Remote Location: Spain . Location. : Fully remote, EU timezone (CET +/- 2 hours). Start date:. ASAP. Languages. : English is mandatory; French is a plus. We are hiring at . Pragmatike. to expand our team and drive the growth of our internal projects.. Our focus is on developing cutting-edge solutions in Cloud Computing, Blockchain, and Artificial Intelligence, while fostering a culture of collaboration and innovation. Joining us means being part of a passionate team where your ideas and skills directly contribute to shaping tomorrow's technologies.. If you're excited about working on ambitious projects in a dynamic and flexible environment, we'd love to hear from you!. Responsibilities. Design, build, and scale fullstack applications using . React. and . Node.js. Collaborate closely with product and design to turn ideas into production-ready features. Own the full application lifecycle, including migrations and system evolution. Lead the transition from legacy monoliths to modern SPA architectures. Improve performance, reliability, and scalability across the stack. Establish and maintain shared components, tooling, and engineering standards. Design and maintain CI/CD pipelines. Participate in architectural discussions, code reviews, and technical decision-making. Contribute across all stages of the product lifecycle, from ideation to delivery. Required Qualifications. 5–6+ years of experience as a . Senior / Lead / Principal Fullstack Engineer. MSc in Computer Science or a closely related technical field. Strong experience building . SPAs. with . React. Solid backend experience with . Node.js. (Python or Go is a plus). Experience owning full application lifecycles, including . monolith decoupling and migrations. Strong understanding of . CI/CD. and modern deployment workflows. Experience with . Solana. and . Solidity. Excellent communication skills and ability to collaborate across teams. Preferred Qualifications. Experience with . Rails. or legacy monolithic architectures. Exposure to . Crypto, Blockchain, or AI-driven products. Familiarity with . Docker, Kubernetes. , and cloud infrastructure. Why Join Us:. Competitive salary commensurate with experience. Fully remote-friendly with flexible working hours. Access to cutting-edge AI and trading technologies. . Pragmatike. is dedicated to a fair, transparent, and inclusive recruitment process. We ensure that no applicant is discriminated against based on age, disability, gender, gender identity or expression, marital or civil partner status, pregnancy or maternity, race, religion or belief, sex, or sexual orientation. In accordance with the . General Data Protection Regulation (GDPR). , your personal data will be processed lawfully, fairly, and securely. We collect and use your personal data solely for recruitment purposes, including sharing it with our client(s) for employment consideration. You have the right to request access, correction, or deletion of your data at any time. We are committed to maintaining the confidentiality and security of your information throughout the recruitment process.