Director of Engineering (5G Core & Network Systems)

Overview

We are seeking a highly experienced

Director of Engineering (DoE)

with deep expertise in

5G Core technologies (SA/NSA), roaming architecture, and telecom signaling

. This is a

hands-on leadership role

requiring both

technical depth and strong engineering management capabilities

.

The ideal candidate will act as a

technical authority

, guiding engineering teams across

design, development, deployment, and operations

, while also driving

product delivery and operational excellence

.

Key Responsibilities

Technical Leadership

• Provide

domain expertise in 5G SA (including SEPP), 5G NSA, and LTE/IMS architecture

s

Lead discussions and design around

• 5G SA core architectu

re, UE interactions, signaling, and bearer flows.

• 5G NSA signaling flo

ws, including Sx interfaces and data call setup.

• 4G LTE data, IMS, and VoLTE call flo

ws.

• Demonstrate ability t

o present and explain call flows (whiteboard-leve

l) with full signaling depth.

• Serve as th

e primary technical authori

ty for the engineering team.

Roaming \& Interconnect Expertise

Design and manage international roaming architectures, including

SEPP-based roaming (5G

SA).

Integration flows such

• LM SEPP ↔ Syniverse SEPP (proxy)
• ↔ Roaming hubs (Comfone, BICS, etc.)
• ↔ Carrier SEPPs (e.g., Verizon, AT\&T.
• Strong understanding

of security, proxy routing, and roaming interfaces.

• Experience w

ith PNI-NPN (Public Network Integrated - Non-Public Networks

.

Engineering Management

Lead and manage a team of engineers to:

• Deliver high-quality products on time.
• Maintain engineering excellence and accountability.
• Provide mentorship, coaching, and technical guidance.
• Drive high-performance cu

lture and extract the best from engineers.

• Manage expectations on product del

ivery with internal and external stakeholders.

Product Development Lifecycle

• Own end-to-end engineering lifecycle.
• Convert product requirements

into Design → HLD → LLD → CIQ → Deployment.

• Ensure alignment across design, implementation, and deployment teams.
• Lead postmortems after product la

unches to identify improvements.

Operations \& Support:

• Drive transition to Operation

s (NOC) for deployed prodcuts.

• Establish an

d lead Tier 3

support for customer-facing issues.

• Handle major outages and esca

lations, including:

• Root cause analysis (RCA)
• MTTR reduction strategies.
• Cross-team coordination during incidents.
• Act as escalation poi

nt for critical production issues.

UE \& Device Expertise

Strong understan

ding of User Equipment (UE)

behavior in:

• Attach procedures.
• Data sessions.
• VoLTE/IMS flows.
• Ability to

analyze device-level interaction with the network.

Qualifications \& Experience

• Required10\+

years in Telecom/5G en

gineering, with strong

focus on Core networks.

Proven experience in:

• 5G SA with SEPP5G NSA architecture.
• LTE/IMS/VoLTE call flows.
• Hands-on exp

ertise in signaling flows and telecom protocols.

• Strong expe

rience in roaming architectures and SEPP integrations

.

• Proven leadership experience

managing engineering

teams.

Preferred Experience

Working with:

• Roaming hubs (Syniverse, BICS,

Comfone).

• Tier-1 operators (e.g., Verizon, AT\&T).
• Exper

ience with private networks (NPN/PNI-NPN).

• Strong

background in incident management and NOC operations.

Leadership Expectations

Ability to clearly

articulate:

• What you did, how you did it, an

d the impact

Strong track record of:

• Mentoring engineers
• Driving technical excellence
• Delivering complex telecom products
• Comfortable w

orking in a highly technical, fast-paced

environment