Senior Network Design Engineer

We are seeking an experienced Senior Network Design Engineer to lead the development and delivery of operational telecommunications and network solutions for railway infrastructure projects. This role combines technical leadership, customer engagement and people leadership whilst providing strategic direction to a team of Network and Engineers.

The Senior Network Engineer is responsible for a team of network engineers and a portfolio of network design projects: defining, assuring and designing secure, resilient network architectures supporting Signalling, SCADA, Voice, Station Information and Security Systems (SISS), and backbone communications networks.

Working closely with customers, delivery partners and multidisciplinary engineering teams you will ensure solutions are designed safely, securely and efficiently throughout the project lifecycle., * Undertake the role of “Team Lead”, providing technical leadership for a network design team, activities and allocated projects, delivering in line with agreed programme

• Act as Responsible Engineer or independent checker where assigned.
• Ensure compliance with engineering, quality and safety standards.
• Support bid and proposal development activities.
• Present technical solutions to customers and project stakeholders.
• Lead development of high and low-level network architecture designs.
• Produce architecture diagrams, design descriptions and technical documentation.
• Define IP addressing, subnetting and network resilience strategies.
• Develop secure network and cyber security architectures.
• Support system integration, testing and commissioning activities.

Your role profile may vary from time to time in accordance with business needs. Your annual objective setting with your line manager will outline any additional responsibilities required to meet business or individual development needs for the forthcoming financial year.

• Chartered Engineer status.
• IRSE Licence.
• Experience in UK railway operational telecommunications.
• Knowledge of signalling, SCADA, radio, M&E and station systems.
• Understanding of electronic security systems.
• Software Defined Networking (SDN).
• Network virtualisation.
• Data centre technologies.
• Network automation.
• Cyber security technologies including Next Generation Firewalls, SIEM, IAM and Threat Intelligence platforms.

Must haves:

• Degree-qualified in Engineering, Telecommunications, Computer Science or a related discipline, or equivalent experience.
• Established knowledge of the systems engineering lifecycle.
• Experience delivering solutions within safety-related or mission-critical environments.
• Experience working to recognised quality and safety standards.
• Strong communication, stakeholder engagement and leadership skills.
• Ability to work effectively to challenging project timescales.
• Significant experience with LAN/WAN network architectures.
• Strong understanding of network security principles and technologies.
• Experience producing network designs for Signalling, SCADA, Voice, SISS or backbone MPLS networks.
• Cisco CCNA level knowledge or above, supported by significant practical experience.
• Experience producing network design and architecture documentation.
• Ability to communicate complex technical solutions to both technical and non-technical audiences.

At Siemens Mobility, we believe that work should work for you. We go beyond standard benefits to create an environment where our people feel supported, empowered and valued both professionally and personally.

Wellbeing: Flexible working, 24/7 Mental health support, Subsidised gym memberships, Subsidised Bupa healthcare, Enhanced sick pay

Financial: Match and More pension, Life assurance, Perks at Work discounts, Cycle to Work scheme, Annual Bonus

Family: Day-one paid parental rights, Shared parental leave, Extra holidays for length of service, Enjoy 26 days annual leave (plus public holidays), with the flexibility to buy or sell up to 5 days each year, volunteering days and sabbaticals

Personal Growth: Access to online learning, Support for external training and development opportunities, Inclusive culture promoting equality and belonging, Active employee networks, Opportunities to grow your skills and career

Join Siemens Mobility where your wellbeing, growth, and future matter.

Transform The Everyday with us

We value your unique identity and perspective and are fully committed to providing equitable opportunities and building a workplace that reflects the diversity of society. Come bring your authentic self and transform the every day with us!

Closing date: 27th November 2026. Please note, we may close this advert earlier than advertised if we receive a high volume of applications, so we encourage you to apply as soon as possible.

Innovation is at the heart of everything we do at Siemens Mobility. We are on a quest to solve the most complex mobility challenges with groundbreaking technology and creative solutions. As part of our diverse and driven team, you will have the opportunity to shape the future of transportation. Imagine contributing to innovations that touch millions of lives - ready to make that a reality?

In CIS, we deliver Rail Infrastructure systems for customers across the UK and internationally. Our portfolio includes the provision of event driven control and monitoring solutions tailored for Centralised SCADA & Line-wide systems, Stations & Utilities, Power SCADA, Control Systems, Tunnel Ventilation, M&E, and many more. We undertake the full engineering delivery life cycle across various projects.