Specialist Cybersecurity - Certificate Management Operations at AT&T

Hyderabad, Telangana, India

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Not SpecifiedCompensation

Senior (5 to 8 years)Experience Level

Full TimeJob Type

UnknownVisa

Telecommunications, CybersecurityIndustries

Requirements

At least 5+ years of experience in Digital Certificate Management Operations
Strong understanding of PKI Fundamentals, including X.509 certificates, Certificate Authorities (CAs), and Registration Authorities (RAs)
Experience with certificate lifecycle management: issuance, renewal, and revocation
Knowledge of Certificate Revocation Lists (CRLs) and Online Certificate Status Protocol (OCSP)
Experience leveraging automation for certificate lifecycle management using scripting tools like PowerShell and Python
Familiarity with symmetric and asymmetric encryption techniques
Understanding of hashing algorithms such as SHA-2 and SHA-3
Experience with key management and secure key storage practices
Proficient with Windows Server environments, particularly Active Directory Certificate Services (AD CS)
Working knowledge of Linux systems and open-source PKI tools like OpenSSL and EJBCA
Expertise in SSH, TLS/SSL, HTTPS, S/MIME, IPsec, and VPNs
Understanding of DNS, LDAP, and HTTP protocols as they relate to certificate distribution and validation
Hands-on experience with OpenSSL, Keytool, Certutil
Familiarity with Microsoft AD CS, KeyFactor, Venafi, HashiCorp Vault, and EJBCA
Experience managing Hardware Security Modules
Attention to detail
Flexible to provide coverage in US morning hours, with shifts and supporting on weekends

Responsibilities

Manage the full lifecycle of digital certificates including issuance, renewal, revocation, and replacement
Monitor certificate status and proactively address expirations to prevent service disruptions
Troubleshoot and resolve certificate-related issues across multiple platforms and applications
Automate certificate management processes using scripting languages and certificate management tools
Maintain accurate documentation of certificate inventories, configurations, and operational procedures
Collaborate closely with developers, security teams, network administrators, and other stakeholders to ensure secure and compliant certificate deployments
Ensure compliance with PKI best practices, industry standards, and regulatory requirements
Participate in periodic reviews/checks and respond to certificate management-related queries
Stay current with emerging trends, threats, and technologies in digital certificate management
Support incident response efforts related to certificate compromise or misuse
Provide training and support to internal teams on certificate best practices

Skills

PKI

Cryptography

Certificate Lifecycle Management

Digital Certificates

Scripting Languages

Automation

Certificate Management Tools

Compliance Frameworks

Troubleshooting

AT&T

Telecommunications services including wireless and broadband

About AT&T

AT&T provides telecommunications services, including wireless communications, broadband internet, and digital television, primarily in the United States. Its 5G network offers faster data speeds and more reliable connections, although availability can vary. The company caters to both individual consumers and businesses, offering various subscription plans that include options for unlimited data and bundled services that combine internet, TV, and phone. AT&T generates revenue mainly through subscription fees, device sales, and its streaming service, DIRECTV STREAM, which adds to its diverse offerings. In a competitive market, AT&T distinguishes itself with its extensive service range and strong brand presence.

Dallas, TexasHeadquarters

1876Year Founded

$43.3MTotal Funding

IPOCompany Stage

Consumer Software, EntertainmentIndustries

10,001+Employees