Delivery Lead – Legacy Modernization Senior Manager in London

Delivery Lead – Legacy Modernization Senior Manager in London

London Full-Time No working from home possible
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Avanade delivers complex client transformation programs through an integrated operating model that combines delivery leadership, project management, engineering, quality, commercial governance, and stakeholder engagement. Legacy Modernization programs require coordinated execution across business stakeholders, legacy subject matter experts, modern engineering teams, migration functions, quality assurance, and client leadership to ensure predictable delivery and business continuity.

Role Overview

The Delivery Lead – Legacy Modernization is accountable for the successful delivery of complex Legacy Modernization programs, ensuring predictable execution, business continuity, and high-quality transformation outcomes while moving legacy platforms into modern target architectures. This is a client-facing delivery leadership role responsible for end-to-end delivery ownership, governance, risk management, stakeholder coordination, scope control, and orchestration across delivery, engineering, migration, testing, and cutover workstreams. The role collaborates with client executives, business stakeholders, Project Managers, Migration Leads, engineering teams, quality assurance teams, and onshore/offshore delivery teams to accomplish stable, measurable, and contractually aligned modernization outcomes. The role typically sits within the Portfolio Delivery job family and operates as the integration point between the business, the delivery organization, engineering, and migration technical services functions.

Key Accountabilities

End-to-End Delivery Ownership

Accountable for delivery execution from mobilization through stabilization and client acceptance.

Owns integrated delivery planning, milestones, dependencies, and readiness gates across modernization workstreams.

Ensures delivery commitments remain aligned to contractual scope, timeline, quality, and business outcomes.

Governance, Risk, and Delivery Control

Defines and operates delivery governance, including Steering Committees, program boards, reporting cadence, and decision forums.

Owns Risks, Assumptions, Issues, and Dependencies (RAID), delivery reporting, escalation handling, and executive narrative.

Ensures adherence to Avanade delivery quality standards and governance expectations.

Scope, Commercial, and Stakeholder Leadership

Owns scope baseline, change control, and alignment between delivery execution, contractual commitments, and financial targets.

Acts as the primary client-facing delivery authority for executive communication, expectation management, and decision-making forums.

Drives client satisfaction, transparent communication, proactive risk management, and follow-on opportunities.

Legacy Modernization Execution and Quality

Orchestrates modernization workstreams, including code conversion, data migration, testing, validation, cutover, and stabilization.

Owns migration and cutover risks, including data consistency, legacy dependencies, readiness gates, rollback planning, and business continuity.

Ensures appropriate testing governance, where defined in scope, across system integration testing, user acceptance testing, parallel run, defect leakage, stability, and functional equivalence.

Key Performance Indicators Owned

On-time and on-budget delivery against approved scope and milestones.

Fulfillment of contractual delivery commitments and governance standards.

Effective RAID management, escalation closure, and delivery reporting quality.

Successful cutover readiness, stabilization, and client acceptance.

Shared: High client satisfaction and transparent executive communication.

High data integrity, functional equivalence, and stable performance on the target platform.

Minimal business disruption at go-live and reduced legacy footprint over time.

Competencies

Leads Others: Drives Vision & Purpose, Develops Talent Transforms Business: Demonstrates Strategic Mindset, Cultivates Innovation Runs the Business: Plans & Aligns, Drives Results Builds Our Culture: Client Focus, Instills Trust Knowledge, Skills, and Abilities

Strong delivery governance, risk and issue management, scope and change control, financial management, forecasting, and quality assurance capabilities.

Executive communication, client relationship management, negotiation, conflict resolution, and decision-making under uncertainty.

Integrated planning, milestone management, dependency management, delivery tooling, data-driven reporting, and performance tracking.

Understanding of legacy platforms, modernization strategies, migration execution, cutover planning, business continuity, and coordination with technical leadership roles.

About Us

At Avanade, we advance the world through the power of people and Microsoft. Join us to shape your skills and the future with bold ideas and innovative solutions. Our partnership with Microsoft and Accenture empowers you to unlock your full potential. Working at Avanade offers the chance to build a career path that suits your skills and interests and the freedom to be your authentic self. We are committed to your growth, well-being, and success. This is where passion meets opportunity, technology meets humanity, and every challenge is a chance to make a genuine impact on colleagues, clients, and communities. Together, we do what matters.

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Delivery Lead – Legacy Modernization Senior Manager in London employer: 3040 Avanade Europe Holdings L Company

Avanade is an exceptional employer that prioritises employee growth and well-being, offering a dynamic work culture where innovation thrives. With a strong commitment to professional development and a collaborative environment, employees are empowered to shape their careers while making a meaningful impact through their work with clients. Located at the intersection of technology and humanity, Avanade provides unique opportunities to engage with industry leaders and contribute to transformative projects in partnership with Microsoft and Accenture.

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Contact Details:

3040 Avanade Europe Holdings L Company Recruitment Team