Authentication

Authentication Engineer Jobs

2 jobs found

Today

Senior Application Security Engineer (Java), VP

Citi Irving, TX

Irving, TX

Today

$126k - $189k/yr Full time Senior Application Security Authentication

Apply Now

Job Description

Citi is seeking a Senior Application Security Engineer (Java) to own end-to-end engineering for authentication and information security platforms.

Responsibilities

Maintain, enhance, and debug Java applications and microservices for authentication flows and security controls
Assess software versions, third-party libraries, and security updates for compatibility, performance, and risk impact
Implement and configure authentication frameworks and protocols, including 2FA/MFA, OTP, Challenge/Response, and RADIUS
Certify SafeWord authentication product versions before production rollout
Stage and validate security patches across authentication infrastructure
Test MFA and RADIUS integrations to confirm functionality and compatibility across enterprise applications
Build and maintain automation scripts using Shell (Bash) to streamline operational tasks and deployments
Write and optimize SQL and PL-SQL database scripts and procedures
Partner with operational teams to test, validate, and certify software releases prior to deployment
Support migration of authentication services from virtual machines toward containerized platforms on cloud ECS OpenShift
Support integration of modern multi-factor authentication mechanisms across enterprise applications as part of legacy upgrade initiatives
Develop and maintain Standard Operating Procedures (SOPs) for authentication platform operations

Requirements

4+ years of progressive experience in software engineering, application security, and/or infrastructure engineering with a strong focus on authentication systems
Hands-on experience in Java programming, debugging, and maintaining enterprise Java applications
Strong understanding of authentication mechanisms: 2FA/MFA, OTP, and Challenge/Response architectures
Practical knowledge of network authentication protocols including RADIUS, LDAP/Active Directory, Kerberos, SAML, and PAM
Advanced proficiency in Linux/Unix systems administration, including process management, file permissions, and performance tuning
Strong Shell scripting skills in Bash and KornShell
Proficiency writing SQL and PL-SQL queries and scripts
Strong TCP/IP fundamentals plus DNS, SSL/TLS certificates, load balancing, and firewall rule configuration
Hands-on experience with Splunk (search syntax, alerts, dashboards)
Hands-on experience with AppDynamics (APM and transaction tracing)
Working knowledge of cloud concepts: AWS, GCP, or enterprise private clouds
Ability to collaborate across operations, security operations, and engineering teams
Clear written and verbal communication skills for technical documentation and incident retrospectives
Strong attention to security best practices, access governance, and audit readiness
Familiarity with containerization/orchestration such as Docker, OpenShift, or Kubernetes is preferred
Experience in Financial Services, Banking, or other highly regulated enterprise environments is preferred

Technologies

Java
Shell (Bash), KornShell
SQL, PL-SQL
2FA/MFA, OTP, Challenge/Response, RADIUS
SafeWord
Linux/Unix
TCP/IP, DNS, SSL/TLS certificates
Load balancing, firewall rule configurations
Splunk
AppDynamics (APM, transaction tracing)
AWS, GCP
Docker, OpenShift, Kubernetes
ECS OpenShift, ECS
LDAP/Active Directory, Kerberos, SAML, PAM
Containerization

Benefits

Medical, dental & vision coverage
401(k)
Life, accident, and disability insurance
Wellness programs
Paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays

Education

Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, Software Engineering, or a related technical field
Industry certifications in Information Security or Networking preferred, such as CompTIA Security+, Network+, CEH, or CCNA

Location: Irving, TX (onsite)

Employment type: Full time

Salary range: USD 125,760 - 188,640 per year

Primary location: Irving Texas United States

Anticipated posting close date: Oct 28, 2026

Time type: Full time

View full job page →

2mo ago

Delivery Senior Consultant, Software Engineering Solutions, Identity & Gen AI Engineer

Deloitte Atlanta, GA

Atlanta, GA

2mo ago Closed

Full time Agentic Ai Artificial Intelligence Authentication

This position is no longer accepting applications (closed Aug 24, 2026).

Job Description

Deloitte seeks a Delivery Senior Consultant focused on Identity and Gen AI engineering to design, implement, and secure AI solutions with robust identity, access, and trust controls across both human and non-human identities and GenAI platforms. The role combines hands-on software engineering, system integration, and ongoing enhancement of AI capabilities.

Location

Atlanta, GA, hybrid