Mobile Core Development - Lead

Mobile Core Development Team Lead

About the Company:

We are partnering with an innovative, high-growth startup at the intersection of cellular core software and

satellite communications.

Location: Tel Aviv - Hybrid (4 times a week from the office,1 from home)

 Hands-on experience developing Mobile Core network components for 4G and 5G

networks (e.g., MME, AMF, SGW, PGW, HSS, UPF) – MUST

 Strong software development experience in Java and C – MUST

 5+ years of experience – MUST

 Tech lead or team lead – MUST

 AI Assistant Engineering - MUST

What will you Do?

• Lead and grow a team of talented engineers developing the brain of Our mobile core - the components at

the heart of our 4G, 5G (and sometimes 3G) networks, including MME, AMF, SGW, PGW, HSS, and UPF -

written in Java, C, and Node.js. Reporting to VP R&D.

• Plan and manage the team on a day-to-day basis following agile methodologies: setting direction and

priorities, monitoring progress, and providing feedback and professional coaching to team members.

• Own the delivery and quality of the team’s core components end to end - from design and development

through testing and production, with occasional involvement in customer POCs. Your code will run on real,

live networks around the world.

• Stay hands-on (~50% of your time) - design, code, and deliver development tasks alongside your team.

• Collaborate on product architecture and design, contributing to research and the adoption of new

technologies.

• Champion AI-assisted development across the team: set best practices for working with AI - design-first

development, careful code reviews, and strong automated testing - and continuously improve AI-driven

workflows that raise code quality and speed up delivery.

Key Requirements

• 5+ years of experience in mobile core development and the telecom world, including experience leading a

team of developers and/or acting as a tech lead in this domain.

• In-depth understanding of mobile core components (3G/4G/5G), with a good understanding of 3GPP

protocols (GTP, Diameter, PFCP, S1AP/NGAP, NAS) and system architecture.

• Proficiency in at least one of our core languages - Java or C.

• Proficiency in designing and architecting complex distributed systems.

• Strong self-learning ability with a proven track record of independently researching and implementing

solutions.

• Excellent written and verbal communication skills in English.

Advantages

• Knowledge and/or experience with mobile supplementary services - VoLTE, VoNR, cell broadcast, lawful

interception, etc.

• Experience working and developing with the following stacks: Kafka, MongoDB, Couchbase, ELK.

• Familiarity and/or experience working with cloud providers (AWS, GCP).