Sr Specialist Cybersecurity - Encryption Solutions / PKI / Digital Certificates / Cryptographic operations / Key and Secrets Management (Venafi/KeyFactor, Vormetric/Cipher Trust, Voltage, HashiCorp
AT&T
- Location
- Hyderabad India
- Work model
- On-Site
- Level
- Senior
- Posted
- 1d ago
Skills
About this role
About the Company
Join AT&T and reimagine the communications and technologies that connect the world. Our Chief Security Office ensures that our assets are safeguarded through truthful transparency, enforce accountability and master cybersecurity to stay ahead of threats. Bring your bold ideas and fearless risk-taking to redefine connectivity and transform how the world shares stories and experiences that matter. When you step into a career with AT&T, you won’t just imagine the future-you’ll create it.
About the Job
We are seeking a highly experienced Senior Specialist to join our Cybersecurity team, responsible for digital certificate management and enterprise encryption solutions. The role requires strong expertise in PKI, cryptography, certificate lifecycle management, and encryption services to ensure secure communications and data protection across the enterprise. This position partners closely with application, infrastructure, and security teams to operate, scale, and improve certificate, key, and encryption services in a compliant and resilient manner, with hands‑on involvement in tooling, automation, and regulatory alignment.
Experience
Level: 8+ years. Location: Hyderabad / Bengaluru Responsibilities Include: Manage and operate enterprise digital certificate and PKI services , managing the full certificate lifecycle including provisioning, renewal, revocation, cross‑certification, and proactive expiration management across complex environments. Support enterprise encryption solutions to ensure strong data protection for applications, platforms, and infrastructure, covering data‑at‑rest, data‑in‑transit, and data‑in‑use. Manage cryptographic keys and secrets across their lifecycle , including secure generation, storage, rotation, access controls, backup, recovery, and secure retirement. Ensure cryptographic governance and compliance , aligning PKI, encryption, and key management practices with internal security policies, industry standards, and regulatory requirements. Partner with engineering and platform teams to enable secure integration of certificates, encryption, and key management into applications, cloud services, and automated delivery pipelines. Design and implement automation, monitoring, and alerting to improve the reliability, scalability, and operational efficiency of certificate and encryption services. Provide advanced operational support and incident response , troubleshooting complex certificate, encryption, or key‑management issues and supporting investigations involving compromise or cryptographic failures. Leverage data analytics and AI‑driven capabilities to enhance visibility, predict risks (such as certificate expirations or misconfigurations), and drive operational efficiencies across PKI and encryption services. Stay current with emerging cryptographic technologies, threats, and AI advancements , and apply relevant innovations to strengthen security posture and reduce manual effort. Contribute to documentation, standards, and knowledge sharing , providing technical guidance, mentoring peers, and collaborating across security, infrastructure, and DevOps teams. Demonstrate flexibility in operational support , including providing coverage during U.S. morning hours and participating in shift‑based and weekend support rotations as needed.
Required skills
Overall : 8+ years of experience supporting enterprise PKI, digital certificates, encryption, and cryptographic operations, including key and secrets management. 1) Core PKI, Cryptography & Security Strong expertise in X.509 certificates , chains, CRLs, OCSP, and complex CA hierarchies. Proven experience managing certificate lifecycles at scale , including renewal, revocation, replacement, and trust models. Solid foundation in cryptography : symmetric/asymmetric encryption, hashing, digital signatures, and key exchange. Hands-on experience with key