Embedded and safety-critical applications must operate reliably under dynamic and resource-constrained environments, where maintaining a balance between safety guarantees and system performance is crucial. Traditional static compilation approaches lack the flexibility needed to adaptively respond to runtime variations in operational conditions, often leading either to compromised safety or suboptimal performance. To address these challenges, we introduce JetCert, a self-adaptive compilation framework designed for embedded and safety-critical systems. JetCert dynamically transitions between formally verified, safety-critical compilation and optimized, high-performance compilation strategies based on runtime monitoring and analysis. By integrating seamlessly with existing self-adaptive control loops, JetCert ensures adaptive runtime decision-making. Moreover, JetCert features a priority-based continuous integration and deployment (CI/CD) pipeline designed for embedded environments. It supports rapid and reliable software updates. Experimental results demonstrate JetCert’s capability to effectively maintain safety constraints while optimizing system performance in dynamic embedded scenarios.