Network Transformation Delivers 100% SLA Attainment Across 75 Sites

TECEZE transformed Old National Bank’s network across 75 locations, coordinating 150 engineers for a single-weekend cutover The rollout achieved 100% SLA attainment with zero missed change windows

About the client

Old National Bank (ONB) is a leading U.S. financial institution that undertook a large-scale network transformation across 75 locations in the United States. Infosys served as the Global Systems Integrator (GSI), with TECEZE responsible for last-mile service delivery, physical execution and hypercare

At a glance

Industry
BFSI
Engagement / Service
Network Transformation & Last Mile Service Delivery
Coverage
75 sites across the United States
Challenge
Inconsistent delivery, insufficiently skilled engineering resources, poor site-activity sequencing and limited project oversight created operational friction and risk across the network transformation.

Success highlights

  • 75 sites Cut over in a single weekend
  • 150 engineers Coordinated field force deployed
  • 100% SLA attainment with no missed change windows
  • Real-time Delivery and quality tracking
  • Structured hypercare Stabilised operations and supported documented handover

The challenge

Corporate meeting

Delivering a complex multi-site network transformation without disrupting change windows

ONB’s previous service provider struggled to deliver across sites

creating operational friction and increasing project risk. Site activities lacked proper planning and sequencing, while insufficiently skilled engineers and late arrivals disrupted scheduled change windows

The engagement also lacked strong project management oversight, resulting in missed deliverables and slipping milestones. With 75 sites requiring coordinated execution, ONB and Infosys needed a delivery partner capable of managing resources, readiness, execution and stabilisation with clear ownership

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Our approach

One coordinated delivery model from planning through hypercare

TECEZE implemented a tightly governed rollout model in lockstep with Infosys and ONB, combining dedicated project management, detailed site planning, skilled field resources and real-time quality tracking.

The approach included:

Dedicated project management

A single, accountable TECEZE Project Manager orchestrated end-to-end delivery, including planning, scheduling, risk and issue management, resource coordination and stakeholder updates.

Joint planning with ONB and Infosys

Detailed runbooks and site-by-site plans were developed with ONB and Infosys, aligning change windows, access requirements, success criteria and rollback safeguards before execution.

Right skills for every task

Skilled engineers were assigned across survey, staging, physical installation, cutover and hypercare workstreams. The project manager coordinated dispatch, readiness and daily stand-ups to maintain delivery quality and pace.

Disciplined scope execution

Network site surveys, remote staging and configuration, physical installation, controlled cutover and structured hypercare were delivered using standard checklists, proven playbooks and validation processes.

Governance and reporting cadence

Deliverables were tracked in real time, with quality checks at each stage to support first-time-right execution and on-time completion. This structured approach provided clear visibility across the rollout and helped maintain control through cutover and hypercare.

Focus Activity Outcome
Project Management End-to-end planning, scheduling, risk and resource coordination Single-point accountability across delivery
Joint Planning Site-by-site runbooks, change windows and rollback planning Execution readiness across all 75 sites
Field Delivery Skilled engineers across survey, staging, installation and cutover Consistent, first-time-right execution
Quality & Tracking Real-time progress monitoring and stage-level quality gates On-time completion with clear delivery visibility
Hypercare Post-cutover stabilisation and documented handover to BAU Controlled transition into steady-state operations
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The results: Single-weekend network transformation

75 sites transformed with 100% SLA attainment

75 sitesCut over in a single weekend
150 Engineers Coordinated field force deployed
100%SLAs met with no missed change windows
20%Project governance and delivery tracking
50%Smooth stabilisation and documented handover
60%Smooth delivery
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What the client says

“TECEZE’s coordinated execution helped us deliver the 75-site transformation with 100% SLA attainment and no missed change windows.”

— IT Service Delivery Lead, Old National Bank

Delivery partnership

TECEZE, Infosys and ONB working as one coordinated delivery team

TECEZE worked in close coordination with Infosys, the Global Systems Integrator, and Old National Bank to execute the network transformation across 75 sites. TECEZE served as the Last Mile Service Delivery Partner, taking responsibility for on-the-ground execution, engineering resources, physical installation, cutover coordination and hypercare.

A dedicated TECEZE Project Manager provided central ownership across planning, scheduling, readiness, risk management and field execution, enabling Infosys and ONB to operate against a common delivery plan.

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Looking ahead

Building a controlled foundation for ongoing network operations

Following the successful cutover, the focus shifts to sustaining operational stability and creating a repeatable model for future multi-site network changes.

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