At a Glance
- Tasks: Lead innovative architecture design and oversee complex migration projects.
- Company: Join a global leader in technology services with a commitment to innovation.
- Benefits: Flexible work options, competitive salary, and opportunities for professional growth.
- Other info: Be part of a diverse team dedicated to excellence and continuous improvement.
- Why this job: Make a real impact in a dynamic environment while working with cutting-edge technology.
- Qualifications: Experience in enterprise architecture and strong leadership skills required.
The predicted salary is between 63000 - 77000 £ per year.
NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now.
We are currently seeking a Enterprise Arch. Strategic Advisor to join our team in London, London, City of (GB-LND), United Kingdom (GB).
Discovery & Assessment Phase
- Lead Discovery & Assessment activities: review current KC environment findings, validate assumptions, identify technical risks and dependencies.
- Define planning assumptions baseline with Project Manager: user population, device counts, data volumes, network constraints, manufacturing site blackouts.
- Establish 10% variance threshold (DEP-02): confirm with KC that Discovery findings align within 10% of SOW assumptions, or invoke Change Control Process.
- Own technical component of D-01 (Discovery & Assessment Report): architecture assessment, dependency mapping, risk register, technical readiness summary.
Design & Architecture Phase
- Lead target-state architecture design across all domains: Entra ID, Exchange Online coexistence, Intune/endpoint management, SharePoint/OneDrive, Teams, security baselines (CIS L1).
- Own D-02 (Target State Architecture Design): overall architect sign-off, component integration, rollback strategy, coexistence mail flow and domain lifecycle approach.
- Design Day 1.5 cutover approach: bulk UPN + SMTP flip, domain tenancy handover sequence, failure modes, rollback procedures at batch level.
- Approve all runbooks (D-03) before Design phase closure: identity, endpoint, device, application deployment, rollback procedures.
- Establish migration throughput baseline (D-01 input) with Automation Engineer: define acceptable users/day per wave, buffer assumptions, monitoring thresholds.
Pilot Migration Phase
- Oversee Pilot Migration execution: 1,000-user validation cohort.
- Approve Pilot entry/exit criteria with all architects and specialists.
- Sign-off on Pilot Migration Report (D-05): validate address rewrite POC, identity cutover, mail flow, device transition, Teams/SharePoint/OneDrive functionality.
- Prepare Stage 2 Readiness Gate (MS-03) evidence pack with Migration Architects: architecture validation, runbook approval, Go/No-Go recommendation, risk mitigation status.
- Make Go/No-Go decision for Stage 2 commencement (MS-03, 05 Nov 2026): sign design authority approval or escalate blockers to Delivery Principal.
Migration Execution Phase
- Serve as design authority through all migration waves: approve wave sequencing, batch definitions, readiness gates.
- Oversee Day 1.5 cutover execution (30-hour window): provide technical decision authority, escalation point for cutover blockers, post-cutover stabilisation oversight.
- Escalation point for all Sev1 (critical) defects: diagnose root causes, approve remediation approaches, validate fixes before wave progression.
- Wave-by-wave technical sign-off: review D-06 (Wave Completion Reports) for technical quality, success rates, defect resolution status, readiness for next wave.
- Monitor migration performance against baseline: escalate throughput variances, network bottlenecks, or infrastructure constraints to Project Manager.
- Lead wave readiness reviews with all specialists: ensure all components ready (identity, endpoint, collaboration, support infrastructure).
Hypercare & Closure Phase
- Provide technical leadership during hypercare stabilisation period (19 Nov 2026 – 03 Apr 2027).
- Escalation point for complex post-migration issues: Sev1 technical blockers that Service Desk cannot resolve.
- Approve technical remediation approaches for systemic issues identified post-cutover.
- Validate compliance and data integrity post-migration: retention architecture execution, sensitivity label alignment, eDiscovery case continuity (DEP-18).
- Oversee source tenant decommission planning: strategy for KC tenant closure, data retention, compliance holds.
- Lead preparation of D-10 (Programme Closure Report): technical summary, lessons learned, architecture handoff documentation.
- Knowledge transfer to KC operations: document target-state architecture, ongoing support model, escalation procedures for post-migration issues.
Programme Technical Governance (All Phases)
- Attend all Steering Committee meetings: present technical status, escalate architecture risks, confirm readiness for phase transitions.
- Maintain technical risk register: identify design risks, mitigation strategies, residual risk acceptance by KC leadership.
- Approve all architectural decisions made by Migration Architects and specialists: ensure design consistency and alignment with target-state.
- Mentor delivery team: coach Migration Architects 1 & 2, provide technical guidance to specialists, support problem-solving on complex issues.
- Champion technical excellence: establish quality standards, review deliverables (D-02, D-03, D-05, D-06), ensure design documentation completeness.
Stakeholder & Executive Communication
- Present technical status to KC leadership at Steering Committee (periodic, as required).
- Provide executive summaries of technical risks and mitigation status.
- Clarify technical assumptions and design decisions to KC stakeholders.
- Approve technical content in programme reports.
About NTT DATA: NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centres and application services. Our consulting and industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centres as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.
Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client's needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees.
NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form.
NTT DATA endeavors to make accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact us at. This contact information is for accommodation requests only and cannot be used to inquire about the status of applications. NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, colour, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.
Enterprise Arch. Strategic Advisor in London employer: NTT DATA
At NTT DATA, we pride ourselves on being an excellent employer that fosters a culture of innovation and collaboration. Our commitment to employee growth is evident through continuous learning opportunities and a supportive environment that encourages creativity in the rapidly evolving field of AI/ML security. Located in a vibrant tech hub, we offer competitive benefits and a dynamic workplace where your contributions directly impact the future of secure AI systems.
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We think this is how you could land Enterprise Arch. Strategic Advisor in London
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We think you need these skills to ace Enterprise Arch. Strategic Advisor in London
Some tips for your application 🫡
Showcase Your Problem-Solving Skills:In IT consulting, it's all about problem-solving, so make sure your CV highlights your analytical skills and any relevant projects you've tackled. Mention specific technologies or methodologies you've used to resolve issues or improve processes; this shows you can think critically and deliver results, which is vital for us at NTT DATA.
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Tailor Your Cover Letter:Your cover letter is your chance to connect personally with us at NTT DATA. Share stories about your experiences in IT consulting, and how they shaped your desire to join our team. Mention why you’re excited about this particular role, and how you see yourself contributing to our projects.
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How to prepare for a job interview at NTT DATA
✨Brush Up on Your Technical Skills
For an IT consulting role, be ready to demonstrate your technical prowess. You might face questions on systems integration, cloud technologies, or even troubleshooting specific software. If you have experience with tools like AWS, Azure, or even specific programming languages, make sure you can talk about them fluently.
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IT consulting is all about solving problems for clients. Think about how you can illustrate your approach to a past challenge using the STAR method (Situation, Task, Action, Result). It's a great way to show how you tackle complex issues and come up with effective solutions.
✨Know the Business Impact of IT Solutions
When discussing your experiences, focus not just on the tech solutions you implemented, but also on their business impact. Employers want to see that you can connect IT with organisational goals. Prep examples that highlight how your tech contributions improved efficiency or reduced costs for past clients or projects.
✨Prepare for Behavioural Questions
Since IT consulting often involves teamwork and client interactions, expect behavioural questions that assess your interpersonal skills. Be prepared with examples that demonstrate your adaptability, communication skills, and how you handle client feedback. Before the interview, think of situations where you worked closely with clients to create effective IT strategies or changes.
