Tech Lead, Mobile Core Network Engineering
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TextNow, Inc.Telecommunications
Location: Canada US – National (USD): $148,000 -$259,000
US High-Cost Locations (USD) - NYC, CT, NJ, Seattle, Los Angeles, San Diego: $136,300 - $237,600
US San Francisco Bay Area (USD): $148,700 -$259,200Full-TimeLead
Salary148,000 - 259,200 USD per year
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Job Details
- Experience
- 7+ years
- Required Skills
- AWSGrafanaPrometheusDatadog
Requirements
- 7+ years in SRE, infrastructure engineering, or network engineering, with a track record of operating complex, high-availability platforms at scale.
- Deep understanding of IP networking, routing, tunneling protocols, DNS, DPI.
- Managed vendor or managed-service relationships for critical infrastructure.
- Actively use AI tools to accelerate incident triage, anomaly detection, and root cause analysis.
- Provided technical direction and mentorship to other engineers, see problems before they're escalated, and drive them to resolution.
- Comfortable handling production incidents, analyzing root causes, and implementing long-term fixes.
- Hands-on experience with observability platforms like Datadog, Prometheus, Grafana, or the ELK stack.
- Experience with AWS (EC2, EKS, VPC networking) or equivalent cloud platform.
- Motivated to learn new technical domains and apply that learning quickly.
- Experience with mobile core network operations (LTE/5G EPC/NSA)—hands-on experience with HSS, PGW/SGW, PCRF, or similar network functions (preferred).
- Understanding of 3GPP standards, Diameter, GTP, or mobile packet core architecture (preferred).
- Experience at an MVNO or with carrier/MVNO-specific network challenges (preferred).
- Familiarity with IMS or VoLTE deployments, SIP, SMPP, SMTP (preferred).
Responsibilities
- Own the Mobile Core Platform: Take end-to-end accountability for the health, performance, and evolution of TextNow's mobile core (HSS, PGW, PCRF, and related functions running in AWS).
- Drive capacity planning and platform evolution to support growing scale.
- Manage Vendor Relationships: Serve as the primary technical interface with our mobile core vendor's Managed Services team and TextNow's broader carrier partners.
- Review vendor-proposed changes and architectural decisions, catch errors before production, and hold partners accountable to SLAs.
- Oversee vendor software upgrade cycles, coordinate upgrade windows, and ensure smooth rollouts.
- Build AI-Driven Operational Capabilities: Design and deliver AI tooling to improve operational health, including agentic performance analysis, automated diagnostics, and accelerated root cause analysis.
- Provide technical direction and mentorship across the Telecom Engineering pod, growing into people leadership as the team scales.
- Participate in an on-call rotation, troubleshoot issues, and drive incident resolution to minimize downtime.
- Partner with product, engineering, and other pods to prioritize and sequence network asks.
- Contribute to the long-term technical roadmap for the core network. Develop and improve monitoring, alerting, and operational tooling for core network health.
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