Senior Network Design/Capacity Planning Engineer
Portsmouth, United Kingdom
Job Description:
Join AT&T and help shape the future of communications and technology that connect the world. We value innovators who seek to explore the unknown and challenge the status quo. Bring your bold ideas and fearless spirit to redefine connectivity and transform how people share stories and experiences. At AT&T, you won’t just imagine the future—you’ll build it.
As an experienced, proactive Senior Network Design/Capacity Planning Engineer you will perform capacity planning for our global backbone and edge devices, ensuring all resources meet current and future customer needs in alignment with engineering guidelines. In this role you will generate detailed reports and collaborate with cross-functional teams to define and implement actions for maintaining optimal network capacity. Additionally, you will identify opportunities to automate repetitive tasks, driving process simplification and operational efficiency.
You will work closely with both internal and external partners, contributing to problem-solving for common issues and continuously improving processes and procedures. Strong collaboration skills are essential, as you’ll be part of an international team operating across multiple time zones. Attention to detail, analytical thinking, and adaptability are key to thriving in this dynamic environment. If you are passionate about network optimization and innovation, we encourage you to apply.
What you’ll do:
- Plan and capacity manage the AT&T Global Core Network to ensure optimal performance and scalability for customers.
- Introduce technology upgrades, working with AT&T labs partners and delivery organizations on implementation plans.
- Review and upgrade network topology and connectivity. Working with Subsea and Carrier teams
- Expand and optimize current network points of presence (PoPs).
- Analyze business requirements and capacity trends to proactively address network demands.
- Collaborate with internal and external teams to align strategies and support organizational objectives.
- Work in a global, multicultural team and take stewardship of capital and expense budgets, ensuring efficient resource allocation.
- Cover working time: EMEA with flexibility
What you’ll need:
- Hands on experience with network design/capacity planning management within large service provider networks
- Solid understanding of layer 2 and layer 3 networks, including experience with routers and switches (Cisco IOS, JunOS).
- Ability to broadly understand network routing protocols and translate engineering guidelines into effective POP designs.
- Proficiency with MS Office applications, coding, and hands-on experience in automation tools and processes.
- Strong presentation skills to effectively communicate technical concepts and recommendations.
- Positive attitude and a proactive, can-do approach to problem-solving and teamwork.
What you’ll bring:
- Around 5+ years' experience, subject matter technical knowledge within the discipline within large, Telco/Enterprise/Service Provider environment.
- CCIE certification or equivalent experience
- Excellent data analysis skills
- Education: Preferred Bachelor of Science degree in Computer Engineering, Computer Science, Applied Science, Electrical Engineering, or Math; or equivalent experience.
This position is hybrid, and you may be expected to go in the Portsmouth (U.K.) office 2-3 days per week.
Our Senior Network Design/Capacity Planning Engineer earns between 71,900 - 89,900 GBP gross / annual. Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on experience, expertise, and education/training.
Joining our team comes with amazing perks and benefits:
Annual Bonus - The target award is 11 %. This is a discretionary bonus awarded on the basis of attainment of company targets.
Annual Salary Increase
BUPA Medical Insurance
Annual health screening
Car allowance
Pension contribution
Long term disability plan
Weekly Hours:
37Time Type:
RegularLocation:
Portsmouth, England, United KingdomIt is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.
Job ID R-84815 Date posted 10/14/2025
Benefits
Your needs? Met. Your wants? Considered. Take a look at our comprehensive benefits.
- Paid Time Off
- Tuition Assistance
- Medical and dental plans
- Discounts
- Training & Development
Our hiring process
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Interview
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