Production Infrastructure & SRE Team Lead

Production Infrastructure & SRE Team Lead

About AppCard

AppCard connects in-store and online purchases to a real-time loyalty and marketing platform. Our production environment spans AWS services, backend applications, and Linux-based systems at customer locations. A failure in any part of that path can affect live transactions and customer operations.

The role

We are looking for a hands-on leader to take end-to-end responsibility for the reliability, security, and operation of this existing production environment. You will lead infrastructure engineers while remaining the senior technical escalation point for difficult incidents and architectural decisions. Your work will cover the full path from customer-premise equipment and secure connectivity through cloud services, data systems, and monitoring.

What you’ll own

• The operational health of production services: availability, performance, capacity, recovery, and clear service ownership.
• Major incident response, diagnosis across system boundaries, restoration, post-incident analysis, and completion of corrective actions.
• Observability across cloud infrastructure, applications, networks, and customer-premise devices, including actionable alerts and tested recovery procedures.
• Production networking and secure device-to-cloud connectivity, including routing, VPNs, firewalls, DNS, load balancers, and traffic troubleshooting.
• Infrastructure security: access and identity, secrets, Linux and container hardening, vulnerability remediation, logging, and coordination of detection and response processes.
• A practical modernization and hardening roadmap that reduces operational risk while keeping existing services running.
• Team priorities, technical standards, mentoring, and clear communication of production risks and tradeoffs.What you bring
• Sustained personal responsibility for a complex live production service, including incidents, on-call or escalation, reliability improvements, and recovery. Be ready to explain the service’s workload, dependencies, failure modes, and what you personally owned.
• Deep Linux administration and troubleshooting experience.
• Strong hands-on networking and security judgment, demonstrated through systems you designed, controls you implemented, or difficult problems you diagnosed.
• Experience operating AWS infrastructure and interconnected application, data, and network components.
• Ability to build maintainable operational tools in Python or a comparable language, and to automate infrastructure with tools such as Terraform and Ansible.
• Evidence that you have led engineers or substantial cross-team technical work, made architectural decisions, and driven changes through production.
• Clear written and spoken English communication during incidents and planning.Helpful experience

Operating hybrid cloud and on-premises environments; fleets of Linux or IoT devices; ECS or EKS; AWS networking and identity; databases and messaging systems; Prometheus/Grafana-style observability; and leading a hardening, modernization, or security-operations initiative. Prior ownership of a formal SOC program is a plus, not a requirement.

To apply

Please briefly describe one production system you personally operated, a significant incident you helped resolve, a networking or security problem you solved, and a technical change you led from design through stable operation.