Engineer, Mobile Core Engineering (Networks)

Singtel; Singapore; On-site; SGD 60,000 - 80,000; Full time

Job summary

A leading telecommunications provider in Singapore is seeking an experienced Engineer for Mobile Core Engineering. The role focuses on developing and maintaining the packet core network architecture to support mobile data traffic. Ideal candidates will have a Bachelor's degree in a relevant field, with 2+ years in mobile core network planning and hands-on experience with key network elements. This position offers a full suite of health benefits and ongoing development programs.

Benefits

Full suite of health and wellness benefits

Ongoing training and development programs

Internal mobility opportunities

Qualifications

• 2+ years of experience in mobile core network planning or engineering.
• Strong understanding of 3GPP standards and protocols.
• Proven experience in project management and CAPEX planning.

Responsibilities

• Develop and maintain packet core network architecture.
• Ensure scalability and performance of core elements.
• Collaborate with cross-functional teams.

Skills

Mobile core network planning

Project management

Analytical skills

Communication skills

Education

Bachelor’s degree in Telecommunications, Electrical Engineering, Computer Science

Tools

Core network elements (MME, SGW, PGW, AMF, SMF, UPF, DNS)

Job description

Engineer, Mobile Core Engineering (Networks)

Date: 6 Oct 2025

Location: Singapore, Singapore

Company: Singtel Group

At Singtel, we believe in the strength of a vibrant, diverse and inclusive workforce where backgrounds, perspectives and life experiences of our people help us innovate and create strong connections with our customers. We strive to ensure all our people practices are non-discriminatory and provide a fair, performance-based work culture that is diverse, inclusive and collaborative.

Join us and experience what it’s like to be with an Employer of Choice*. Together, let’s create a brighter digital future for all. *Awarded at the HR Fest Awards 2020.

Singtel Networks, the most established telecommunications infrastructure provider in Singapore is transforming to enable the digital generation of tomorrow. We are introducing new capabilities in 5G, Cloud, Analytics, Digital Commerce, Software Engineering, Cyber Security to enhance our core competencies and deliver innovative and differentiated Mobile and Fixed services (Broadband, TV and Telephony) for our customers. We are committed to celebrating inclusion and diversity and is a strong believer to upskill and nurture all individuals. Come join us today as we build Singtel’s Networks of tomorrow, and Empower Every Generation to live, work and play in new ways!

Make an Impact by:

• Develop and maintain packet core network architecture and capacity plans to support current and future mobile data traffic.
• Ensure scalability and performance of core elements including AMF, SMF, UPF, MME, SGW, PGW/EPG, and DNS.
• Lead and coordinate packet core expansion and upgrade projects from initiation to completion.
• Collaborate with cross-functional teams including RAN, transport, IT, and security.
• Prepare and manage capital expenditure forecasts and justifications for packet core investments.
• Track project budgets and ensure cost-effective deployment strategies.
• Ensure network design and operations comply with 3GPP standards and local regulatory requirements.
• Maintain up-to-date knowledge of evolving standards in 3G/4G/5G core technologies.
• Integrate security principles into the design and deployment of core network systems.
• Collaborate with cybersecurity teams to assess risks and implement mitigation strategies.
• Analyze network KPIs and traffic trends to identify bottlenecks and improvement opportunities.
• Recommend and implement optimization strategies to enhance user experience and network efficiency.

Skills for Success:

• Bachelor’s degree in Telecommunications, Electrical Engineering, Computer Science, or related field.
• 2+ years of experience in mobile core network planning or engineering.
• Strong understanding of 3GPP standards and protocols (e.g., GTP, SCTP, Diameter, HTTP/2).
• Hands-on experience with core network elements (e.g., MME, SGW, PGW, AMF, SMF, UPF, DNS).
• Proven experience in project management and CAPEX planning.
• Familiarity with security frameworks and best practices in telecom networks.
• Excellent analytical, communication, and stakeholder management skills.

Rewards that Go Beyond

• Full suite of health and wellness benefits
• Ongoing training and development programs
• Internal mobility opportunities

Are you ready to say hello to BIG Possibilities?

Take the leap with Singtel to unlock new opportunities and accelerate your growth. Apply now and start your empowering career!