Software Engineer - Network Modelling & Optimisation

Job Description

Software Engineer - Network Modelling & Optimisation Job Details | BT Group Cookies on BT.com We use cookies to do things like remember what you've added to your shopping basket, offer live chat support and show you content we think you'll be interested in. If you're happy with the use of cookies by BT and selected partners, click OK. Modify Cookie Preferences Reject All Cookies Accept All Cookies Skip to main content View profile Employee Login Why BT Business Culture at BT Careers at BT Search roles BT Group View profile Employee Login Why BT Business Culture at BT Careers at BT Search roles BT Group View profile Employee Login Early Careers Our Teams About BT Group Life at BT Group Flexible Working Rewards & Benefits Diversity & Inclusion Wellbeing explained Our locations Search roles Search Jobs Job Description Apply now Apply Now Start applying with LinkedIn Start Please wait... Job Title: Software Engineer - Network Modelling & Optimisation Req ID: 59394 Job Function: Software Engineering Posting Start Date: 04/08/2026 Posting End Date: Division: Networks Job Location: GBR Ipswich - Orion Building Advertised Salary: Competitive, with great BT benefits. Flexible 3 days a week together out of our Ipswich site (flexible 2 days remote wherever). About the role This role sits at the heart of how we plan and evolve the UK’s core network – the infrastructure that keeps people, businesses and critical services connected every day. Today, powerful modelling and optimisation tools help shape decisions across our network, but they’re largely accessed through specialist teams. We’re now transforming that approach — moving to a modern, cloud-based platform that makes these tools more accessible, scalable and impactful across the wider organisation. As a Software Engineering Specialist, you’ll play a key role in that transformation. You’ll help modernise how network modelling is delivered, enabling teams to move faster, make better decisions, and focus on higher-value, forward-looking work. This is an opportunity to combine software engineering with real-world impact — contributing to decisions that shape national-scale infrastructure. What you’ll be doing Designing and building a web-based application that brings network modelling and optimisation tools into a modern, accessible platform Transforming existing desktop-based tools into scalable, cloud-hosted solutions used across Fixed Networks Setting up and maintaining cloud infrastructure, including virtual machines, databases and secure environments Developing APIs, data pipelines and integrations to bring together multiple data sources into a single modelling environment Embedding secure-by-design principles, including identity access management and single sign-on for sensitive data Improving code quality, automation and deployment pipelines to support reliable, scalable delivery Enhancing and evolving existing modelling tools as they are migrated — enabling richer capability, improved performance and new use cases Contributing to future network modelling, simulations and optimisation work as the platform evolves Essential Skills / Experience Experience building software using Python and JavaScript (e.g. React, NextJS, TypeScript). Experience working with on-prem or private cloud environments, including hosting applications across virtual machines and internal platforms (rather than purely public cloud) Demonstratable commercial background of security best practices, including identity and access management and secure application development Infrastructure as Code (e.g. Terraform, Ansible). Desirable Skills / Experience Experience building or consuming APIs. Knowledge of containerisation (e.g. Docker, Kubernetes). Ability to design and work with databases (e.g. SQL, schema design) Strong understanding of modern software engineering practices (e.g. CI/CD, automation, version control, testing) Interest in algorithms, optimisation, or modelling problems. Experience modernising or migrating legacy systems to cloud-based architectures. Our Package Tailored benefits make a real difference. That’s why we offer a comprehensive range to support your growth, wellbeing, and everyday life. You can design the package to suit you and your lifestyle. Your core benefits include: 10% on target annual bonus Access to an online private GP 24/7 for you and your immediate family Market-leading paid carers leave with up to 2 weeks off Equalised maternity, paternity, and adoption leave – 18 weeks’ full pay and 8 weeks’ half pay Discounted EE and BT products, including mobile and broadband Market leading Pension scheme – 5% from you and 10% from us Holiday purchase scheme You can select additional benefits, including healthcare, dental, gym memberships and more when you’re ready. BT Group is the UK’s leading communications group and the holding company behind some of the country’s most recognised brands – including BT, EE, Openreach and Plusnet. Our purpose is