Software Testing, PostgreSQL, Computer engineering, Software Development Lifecycle, Software Documentation, Application Development, Bouncy Castle Cryptographic, Cloud Infrastructure, Google Cloud Platform, NET Core, NET Developer, Cyber Security, C#, Application Testing, Agile Software Development. Design and develop robust, secure, and scalable RESTful APIs and web services for various features and use cases: CRL/OCSP, ACME, Certificate Issuance, message encryption/decryption, software signing, key rotation and certificate lifecycle management, HSM integration with PKCS11.