We're looking for a Senior Core Network Engineer with strong Configuration Management expertise to take on a technical leadership role in one of the most ambitious Core Network programmes in Europe, working directly with one of the continent's leading telecommunications operators.

This is a hands-on leadership position within a small, high-impact team. You'll set the technical direction, defend your decisions in front of demanding stakeholders, and lead a squad that counts on you to have their back. If you enjoy environments where your judgement carries weight and your decisions actually ship, this role is built for you .

What you'll do

· Own the technical design of Configuration Management capabilities within a complex, multi-vendor Core Network environment, ensuring scalability and resilience.

· Lead a delivery squad: you set direction and review design, while your team handles day-to-day platform coding.

· Make and defend technical decisions in front of the customer's Core Engineering team.

· Drive the translation of operator change practices — change windows, CMDB updates, rollback expectations — into automated, auditable gates.

· Own vendor and data-model engagement across Ericsson, Huawei and other in-scope vendors, including YANG modules and NETCONF exports.

· Be the technical escalation point for the account, from vendor engagement to lab access and integration with the customer's change-management systems.

Requirements

· Solid experience running a Configuration Management tooling stack for mobile Core — Cisco NSO, HPE Service Director, Ericsson ENM or an equivalent home-grown platform: golden configurations, drift detection, templating.

· A real track record managing configuration change on live Core : change windows, governance, rollback strategy, post-change KPI validation, and the discipline that 24x7 environments demand.





· Working fluency with NETCONF and YANG — you've personally run get-config and edit-config against live nodes and know how to read a schema deviation.

· Hands-on experience with at least one 5G SA Core (Ericsson, Nokia or Huawei), plus solid conceptual grounding across 5G SBA and 4G EPC architecture.

· A track record leading a delivery squad through a customer-facing service delivery , integration or first-of-kind deployment.

· Fluent English; working Spanish is a strong plus, as customer sessions run in both languages.

Nice to have

None of this is mandatory on day one; a strong Core lead will pick it up quickly working alongside our platform team.

· GitOps operations and the YANG toolchain (libyang, pyang, yangdiff or similar).

· Reading-level Python and Kubernetes literacy — enough to review pull requests and pair with engineers on tricky paths.

· Multi-element orchestration experience ( Cisco NSO or HPE Service Director ).

· 3GPP interface familiarity , prior tenure at a Tier-1 European operator, VoLTE/IMS exposure, or contribution to IETF/3GPP/ETSI standards work.

Benefits

· Competitive salary, health insurance and Flexible Compensation Plan as an enterprise benefit

· Annual training budget to help you stay technologically up to date and grow professionally

· Time flexibility : our life is not just a working day; we give you flexibility both in entry and exit. In addition, we enjoy a reduced working day on Fridays and Summer (July and August)

· Our projects are cutting-edge in technology and are in both national and international environments, making your growth global

· We provide a adaptable working model , adapted to the needs of each role and team, with options from remote to hybrid or office-based arrangements.

· Our employee satisfaction survey tells us that we have a great work environment and great professionals in the company. Do you want to check it? Join us!

📌 Core Network Engineer (España)
🏢 Future Connections
📍 España