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BT Group

Software Engineering Specialist

Location:  GBR Belfast - Riverside Tower
Location flexibility:  3 office days / week
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Job Description

Job Req ID:

Posting Date:

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Location:

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About the role

The Consumer Billing Engineering Lead plays a critical role in modernising and scaling BT’s billing platforms, leading the rollout of new technology that improves reliability, agility, and customer outcomes. This is a hands-on technical leadership role responsible for shaping and delivering cloud-native solutions, creating new microservices, and guiding the evolution of billing capabilities across complex enterprise systems. The role requires strong technical depth in Java/Spring Boot, AWS, EKS, and Oracle DB, combined with the ability to lead engineering direction, mentor teams, and ensure high-quality delivery. By driving modern architecture, operational excellence, and continuous improvement, this role is central to enabling a more flexible, resilient, and future-ready consumer billing estate.

What you’ll be doing

Technology Rollout & Engineering Delivery
· Working with an FTE co-located teams you will lead the rollout of new technology across Technical Skills consumer billing platforms, ensuring changes are delivered safely, predictably, and with minimal service disruption.
· Drive end-to-end delivery from solution design through build, test, deployment, and production support for billing services.
· Establish engineering standards, release readiness, and delivery controls that support resilient, high-quality platform change.


Microservices Architecture & Solution Design
· Design and evolve cloud-native billing solutions using microservices architecture, API-first design, and scalable integration patterns.
· Make key technical decisions across Java/Spring Boot services, AWS-hosted workloads, EKS deployment models, and Oracle DB data design.
· Ensure solutions are secure, scalable, supportable, and aligned to enterprise architecture and billing domain requirements.

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Hands-on Engineering & Technical Execution
· Create and enhance new microservices and backend capabilities using Java and Spring Boot to support billing journeys, integrations, and platform modernisation.
· Review, optimise, and troubleshoot application code, service interactions, container deployments, and database access across the billing estate.
· Support technical discovery for existing and brownfield billing applications to identify dependency, migration, and simplification opportunities.

Cloud Platform, Reliability & Operations
· Ensure billing services are deployed and operated effectively in AWS and EKS, with strong observability, logging, alerting, and operational controls.
· Lead production readiness, resilience planning, performance tuning, and root-cause analysis for customer and revenue-impacting incidents.
· Improve CI/CD pipelines, deployment automation, and engineering practices to accelerate safe and repeatable change.

Data & Billing Platform Integrity
· Guide Oracle DB usage, data access patterns, and schema considerations to ensure performance, integrity, and traceability across billing solutions.
· Work with dependent systems and teams to maintain reliable billing flows, reconciliations, and operational controls across integrated services, including maintaining Oracle DB integration and support for the NetCracker RBM instance.

Leadership & Team Development
· Provide technical leadership to engineers, setting direction through design reviews, code reviews, and architectural guidance.
· Mentor team members in microservices engineering, Java/Spring Boot development, AWS/EKS operations, Oracle DB integration, and modern engineering practice.
· Drive a culture of accountability, continuous improvement, and operational excellence across delivery teams.

Stakeholder & Cross-Functional Alignment
· Collaborate with Product, Architecture, Security, QA, Operations, and dependent delivery teams to align technical change to business priorities.
· Communicate delivery plans, technical decisions, risks, and trade-offs clearly to support informed decision-making across stakeholders.

Essential Skills / Experience

  • Java/Spring Boot & Microservices Engineering: Strong experience building and supporting scalable backend services using Java, Spring Boot, microservices, and API-first architectures.
  • Cloud Platforms (AWS/EKS): Proven expertise deploying and operating cloud-native applications in AWS and EKS, including containerisation, observability, resilience, and CI/CD practices.
  • Technical Leadership & Delivery: Experience leading end-to-end engineering delivery, making architectural decisions, mentoring engineers, and driving operational excellence across complex enterprise platforms.

Desirable Skills / Experience

  • Oracle Database expertise including schema design, performance tuning, and data integration.
  • Consumer Billing Platform experience within telecoms or other large-scale enterprise environments.
  • NetCracker RBM knowledge and associated billing platform integrations.
  • Event-Driven Architecture & Domain-Driven Design (DDD) experience.
  • CI/CD Automation & DevOps tooling expertise.
  • Production Support & Incident Management including root cause analysis and resilience planning.
  • Cross-Functional Stakeholder Management across Product, Architecture, Security, QA, and Operations teams.
  • AI technologies within Software Engineering and operational environments.

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
• Equalized 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 as simple as it is ambitious: we connect for good. Our customers include consumers, small, medium and large businesses, public sector organisations and other communications providers.

BT Group’s role is about setting direction, unlocking value and creating the conditions for our brands and businesses to thrive.

Having come through the most capital-intensive phase of our fibre investment, our focus now is on what comes next – simplifying how we operate, using technology and AI to work smarter, and organising ourselves to serve customers better and grow sustainably. Group teams shape strategy, policy, brand, capital allocation and transformation, helping the whole organisation perform at its best.

We have a singular culture that unites all our people: we are customer-first challengers, who are committed, clear and connected. These behaviours unite us as one team to deliver for our colleagues, our customers, our stakeholders and the country. Joining BT Group means working at the heart of a business that matters to the UK, with the opportunity to shape decisions, influence outcomes and help set the future course of one of the country’s most important companies.

Working at BT Group

3 office days / week

A little flex time

Company employees:

100,000 across BT Group (24,000 at BT Business)

Gender diversity (m:f):

74.3:25.7 (BT Group)

Hiring in countries

Australia

Brazil

Hungary

India

Ireland

Japan

Mexico

United Kingdom

Office Locations

Company benefits

25 (UK, increasing with service) / 21 (India) days annual leave + bank holidays
Adoption leave – 18 weeks full pay, 8 weeks half pay, 6 months statutory
Bank holiday swaps
Buy or sell annual leave – buy up to 5 days/year pro rata
Carer’s leave – Two weeks paid leave
Cinema discounts
Coaching
Compassionate leave
Complimentary Medical Services
Cycle to work scheme
Employee assistance programme
Employee discounts
Enhanced maternity leave – 18 weeks full pay, 8 weeks half pay, 6 months statutory
Enhanced paternity leave – 18 weeks full pay, 8 weeks half pay, 6 months statutory
Enhanced pension match/contribution
Enhanced sick pay – 3 months
Faith rooms
In house training
L&D budget – sponsored accreditation available for certain professions
Learning platform – internal and external learning content via Degreed
Learning license – unlimited access
Lunch and learns
Mental health platform access – Silvercloud
Mentoring
Neonatal leave
Open to job sharing
Open to part time work for some roles
Optional unpaid leave
Private GP service – 24/7 virtual GP access for UK colleagues
Referral bonus
Returnship
Salary sacrifice
Share options
Shared parental leave
Travel loan
Volunteer days – 3 volunteer days per year
Reservist leave
Fertility treatment leave
Pregnancy loss leave
Pregnancy support
Fertility treatment leave
Pregnancy loss leave
Pregnancy support
On-site catering
On-site barista
On-site shower
Modern office
Collaboration spaces
Private booths
On-site wellness room
Open to part-time employees
Open to compressed hours

Awards & Accreditations

2nd - Best Workplace Culture

2nd - Best Workplace Culture

Flexa awards 2026
3rd – Most loved - Large companies

3rd – Most loved - Large companies

Flexa awards 2026
Most Family Friendly Company

Top 10 - Most Family Friendly Company

Flexa awards 2025
Best Career Progression

Top 10 - Best Career Progression

Flexa awards 2025