Application Expert

Working in the Billing Experience IT Delivery Cluster

At Telenet, we build and operate complex digital and telecom solutions that power millions of customer interactions every day. In the IT Delivery Cluster of the Billing Experience tribe, you will play a key role at the heart of Telenet’s billing, payments, collections and finance journeys, ensuring that complex billing applications run reliably today and evolve in a future‑proof way. The environment is dynamic and collaborative, balancing Technical Debt reduction, KTLO (Keep The Lights On), stability, continuous improvements, and strategic modernization across a critical part of the BSS landscape.

You will work closely with Application Owners, Product Owners, Architects, Business and Journey owners, IT Operations, Delivery Partners and other Application Experts in a fast‑moving, collaborative environment where ownership, quality and predictability matter.

Your responsibilities as an Application Expert 

 As an Application Expert, you are the subject‑matter expert for the applications in your scope. You combine deep application knowledge with strong analytical and collaborative skills to support stable operations, high‑quality delivery, and long‑term application evolution.

You act as a key bridge between business, delivery and architecture, ensuring that application‑related decisions are well‑founded, transparent and aligned with Telenet’s architectural guardrails and delivery standards. 

• You act as the expert for assigned applications, including functionality, integrations, dependencies and constraints supporting the application owner. You maintain application hygiene and transparency through documentation, lifecycle data, integration views and architectural alignment, Service Reliability Engineering/Service Level Objectives (SRE/SLOs) and Total Cost of Ownership to support prioritization and informed decision‑making.
• You contribute to and maintain a prioritized Application Roadmap covering KTLO, upgrades, modernization and rationalization. You monitor technology evolution and influence the product backlog and multi-year view in line with Telenet’s architectural guardrails, innovation goals and technical debt reduction.
• You actively contribute to backlog quality, prioritization and predictability. You own or contribute to epics, increments and changes, including impact analysis, requirements definition and acceptance criteria. You safeguard quality from design through delivery, in line with agreed delivery frameworks and standards.
• You work closely with Architects to maintain and evolve reference architectures. You collaborate across squads, multiple delivery partners, increments and initiatives, proactively managing dependencies together with the product owner. You act as back‑up for fellow Application Experts and actively share knowledge and best practices. You grow towards more proactive technical and domain guidance as application maturity increases.

Your profile as Application Expert 

You are someone who:

• can adapt and learn new applications and evolving technology landscapes.
• takes strong ownership for applications and follows through on commitments
• can translate complex application landscapes into clear and actionable insights.
• communicates effectively with both IT and non‑IT stakeholders.
• is comfortable working in an agile, cross‑functional delivery context.
• is highly motivated and has a challenging and growth mindset and actively builds expertise in technology, domain and delivery practices.

Experience with large-scale IT environments, integration‑heavy landscapes or telecom/billing, payments and collections systems is a strong asset.

Our offer to you

At Telenet group, you get more than just an attractive gross salary. We strongly believe in results and ownership: we give trust but also expect commitment and impact. What you achieve truly matters.

In addition to a thirteenth-month salary and holiday pay, you can count on an extensive package of extra benefits that supports you in your daily life as well as at work.

An overview of our benefits:

• Mobility budget: compose your own mobility plan, you can opt for a company car or alternative mobility solutions
• Meal vouchers and eco vouchers
• Mobile phone, mobile subscription, laptop, and employee discounts
• Collective bonus and individual bonus (aligned with your performance)
• Hospitalization insurance (including an ambulatory plan) and group insurance
• 20 days of paid leave and 12 compensatory days off

We value your ongoing development, investing in growth via our internal learning platform, coaching, and on-the-job training. You will have opportunities to keep learning and further strengthen yourself in your role.

We also prefer working closely together. We believe strong teams form by frequent interactions and quick transitions. To facilitate a smooth onboarding and rapid integration for new employees, we expect you to be present in the office at least three days a week during the first six months. On other days, you can work remotely from home. 

What happens after you apply?

Do you see a match with our position? Then we look forward to receiving your application. We always get back to you. When there’s a match, we will reach out to you to get acquainted and explain the next steps in our selection process.