Network Engineer (4G/5G Core Network)

About the role

Abstra, a nearshore tech talent services company, is seeking an experienced Network Engineer with strong expertise in 4G/5G core networking to support testing, deployment, optimization and upgrade activities in a complex telecommunications environment. This is a long-term consulting engagement, working PST business hours and remotely from LATAM (Brazil, Costa Rica, Argentina and Mexico, in that order of preference), with occasional travel to the US about once per quarter.

Key responsibilities

• Support lab and production testing of core network technologies and execute and document testing plans
• Take part in customer and stakeholder meetings to understand testing objectives and operational requirements
• Design and implement lab upgrades, network enhancements and new feature deployments, and develop migration guides for lab-to-production transitions
• Advise on network architecture, scalability, resiliency, performance and QoS, and support change management, impact analysis and implementation reviews
• Help troubleshoot and support production deployments during major network changes, and attend recurring technical meetings and service reviews
• Create and maintain technical documentation, test reports and migration guides, and provide knowledge transfer and informal training

Required profile

• Hands-on 4G/5G core networking experience, not just traditional enterprise networking
• Strong cloud-native networking expertise and advanced routing and troubleshooting skills
• Production support and deployment experience
• Ability to work independently in a remote environment and communicate well in writing and verbally
• Valid passport and ability to travel to the US with reasonable notice

Required skills

• 4G/5G core: 3GPP standards, 5G SA/NSA, SBA, Service Mesh, AMF, SMF, UPF, PCF, network slicing, VPP, data modeling
• Kubernetes, Docker, OpenShift, microservices
• BGP, BFD, IS-IS, OSPF, static routing
• Python 3, Unix/Linux administration, shell scripting, network test automation

What we offer

• Flexible working hours and remote work options
• Professional growth opportunities and a collaborative environment
• Compensation in USD and hardware and software setup