Infrastructure Engineer – L3

Apptad Inc; Dallas (TX); Hybrid; USD 110,000 - 170,000; Full time

Job summary

Apptad Inc in Dallas, TX is seeking an experienced Infrastructure Engineer L3 to support, implement, and troubleshoot enterprise IT infrastructure across on-prem, hybrid, and cloud environments. You will work with compute, storage, networking, security, and data platforms to ensure reliability and security of critical services.

Strong hands-on experience with Automation (Ansible/Chef) and cloud platforms is required, along with collaboration with architecture and security teams.

Qualifications

• 8+ years of experience in enterprise IT infrastructure.
• Hands-on expertise across compute, storage, networking and cloud platforms.
• Experience with on-prem, hybrid and cloud environments.
• Ability to plan, implement and support scalable IT services.

Responsibilities

• Support implementation, configuration, and maintenance of enterprise IT infrastructure.
• Ensure changes follow standards, procedures, and compliance.
• Monitor performance and implement improvements for reliability.
• Provide L3 technical support for incidents and changes.
• Assist in DR drills and capacity planning.

Skills

Compute

Storage

Networking

Cloud platforms

Automation

Security

Disaster Recovery

Backup

Databases

Monitoring

Tools

Ansible

Chef

Job description

Role Infrastructure Engineer L3

Location- Dallas, TX Hybrid

Role Overview

An experienced Infrastructure Engineer / Technical Specialist with 8+ years of experience in supporting, implementing, and troubleshooting enterprise IT infrastructure environments. Strong hands-on expertise across compute, storage, networking, hosting services, security, and cloud platforms, with the ability to contribute to infrastructure improvements, maintain operational stability, and support scalable and secure IT services.

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Key Responsibilities

Enterprise Infrastructure Architecture

• Support the implementation, configuration, and maintenance of enterprise IT infrastructure across on-premises, hybrid, and cloud environments.
• Analyze technical requirements and contribute to stable, scalable, and secure infrastructure solutions under the guidance of senior architects or leads.
• Ensure infrastructure changes follow organizational standards, operational procedures, and compliance requirements.

Infrastructure Support & Improvement

• Monitor infrastructure performance, identify improvement areas, and recommend practical enhancements to improve reliability and efficiency.
• Assist in infrastructure upgrade, migration, and modernization activities based on defined project plans and technical guidelines.
• Prepare technical documentation, implementation notes, and operational handover details for infrastructure changes.

Capacity Planning & Resilience

• Perform capacity planning for compute, storage, network, and cloud resources to support enterprise workloads efficiently.
• Support backup, data retention, high availability (HA), and disaster recovery (DR) activities as per defined standards and runbooks.
• Participate in DR drills, failover testing, and infrastructure validation activities.

Cloud & Hybrid Infrastructure

• Support and administer cloud-based infrastructure services on platforms such as AWS and Microsoft Azure, focusing on availability, security, and cost awareness.
• Work with IaaS, PaaS, and hybrid cloud environments for provisioning, monitoring, and operational support.
• Assist in cloud migration and infrastructure transition activities, including assessment inputs, build support, testing, and post-migration validation.
• Use automation and configuration management tools such as Ansible, Chef, or equivalent technologies for standard operational tasks.

Security & Compliance

• Implement and follow IT infrastructure security policies and procedures across supported environments.
• Ensure infrastructure operations comply with security, access control, patching, and vulnerability management requirements.
• Coordinate with security teams to address findings, remediate risks, and maintain a secure infrastructure posture.

Operational Excellence & Technical Support

• Support cost-effective infrastructure operations by identifying right-sizing, utilization, and standardization opportunities.
• Contribute to infrastructure optimization initiatives, including automation, monitoring improvements, and operational process enhancements.
• Provide L3 technical support for complex infrastructure incidents, service requests, problem investigations, and change activities.

Database & Data Platform Expertise

• Provide support and technical coordination for Relational, NoSQL, and Big Data platforms, including:
• Oracle, SQL Server, PostgreSQL
• Hadoop, Spark, and other open-source big data technologies
• Support data platform availability, performance monitoring, backup coordination, and access/security compliance.

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Technical Skill Set

• Infrastructure Domains: Compute, Storage, Network, Hosting, Data Centers, Hybrid IT
• Cloud Platforms: AWS, Microsoft Azure
• Automation & Configuration: Ansible, Chef
• Databases & Data Platforms: Oracle, SQL Server, PostgreSQL, Hadoop, Spark, NoSQL
• Security: Security operations support, compliance controls, access management, patching, and vulnerability remediation
• Resilience: Backup, Disaster Recovery, High Availability, Data Retention

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Value Delivered

• Maintains infrastructure stability through effective L3 technical support
• Supports infrastructure modernization, migration, and cloud operations
• Improves operational efficiency through automation, monitoring, and process improvement
• Acts as a strong technical contributor for infrastructure operations and delivery teams