Technology Case Studies & Case Interview Examples

73 technology consulting cases covering cloud & infrastructure, AI & automation, cybersecurity, SaaS, digital transformation and more — in the style of McKinsey, BCG, Bain, EY, PwC, Deloitte, Accenture and Kearney interviews. Every case can be practiced live with an AI interviewer that scores your structure, math and recommendation.

Browse by firm: McKinsey cases · BCG cases · Bain cases · EY cases · PwC cases · Deloitte cases · Accenture cases · Kearney cases

McKinsey case interview examples

  • Saudi Telco Losing Postpaid Subscribers

    McKinsey · Strategy · Medium · 25-35 min

    A tier-1 Saudi telco. Postpaid annual churn has climbed from 4% to 8% over eighteen months while the two main competitors hold steady at 2%. Prepaid is flat. Postpaid ARPU is roughly four times prepaid. The CEO wants the…

  • Global Bank Considering Cloud Repatriation

    McKinsey · Tech Consulting · Hard · 35-45 min

    A global bank — $400M annual public-cloud spend, growing 35% year-on-year — has a board mandate to repatriate 40% of workloads to on-prem within three years. The CTO is sceptical. The CFO is enthusiastic. The mandate was…

  • Beautify: should in-store beauty consultants use virtual channels?

    McKinsey · Consumer / beauty retail · Intermediate · 25-35 min

    A global beauty company is considering training in-store consultants to use virtual channels to connect with customers beyond the store.

  • Diconsa: should a rural retail network offer financial services?

    McKinsey · Public sector / financial inclusion · Advanced · 35-45 min

    Assess whether the Diconsa network in Mexico could be used to provide basic financial services to rural communities.

  • Talbot Trucks: should an OEM invest in electric trucks?

    McKinsey · Industrial / automotive · Advanced · 35-45 min

    A European truck manufacturer is evaluating whether to invest in producing and selling electric trucks.

  • Develop an LLM talent strategy for a Fortune 500 company

    McKinsey · Talent / Digital Transformation · Advanced · 35-45 min

    A Fortune 500 technology company needs to upskill 30,000 employees in large language model tools and capabilities within 18 months. Leadership wants a roadmap that addresses skills gaps, training investments, organizatio…

  • Optimize cloud infrastructure costs for a SaaS unicorn

    McKinsey · Technology / Cloud Operations · Advanced · 35-45 min

    A $10B SaaS unicorn’s cloud spend is growing 40% annually while revenue grows 25%—cloud cost as a % of revenue is increasing. CTO needs a strategy to right-size infrastructure, improve cost efficiency, and establish FinO…

BCG case interview examples

  • Family-Owned Conglomerate Digital Transformation

    BCG · Tech Consulting · Medium · 25-35 min

    A KSA family conglomerate — SAR 8B revenue across retail, real estate, F&B, and contracting. The chairman has come back from Davos asking for 'an AI strategy across the group' in 90 days. There is no Chief Data Officer,…

  • Premium Coffee Chain Entering Saudi Arabia

    BCG · Strategy · Easy · 20-30 min

    A European premium coffee chain — 180 stores across France, Italy, Germany, average ticket EUR 8, brand built on single-origin and design-led interiors. The CEO is considering Saudi Arabia for first Middle East entry. Sa…

  • Set a climate strategy

    BCG · Sustainability / corporate strategy · Intermediate · 25-35 min

    A global company wants to set a climate target and choose which initiatives will help achieve it.

  • Restore customer satisfaction at a digital bank

    BCG · Financial services / digital · Intermediate · 25-35 min

    A digital bank has fallen in customer satisfaction rankings and wants to get back into the top three.

  • Support a cloud migration tied to ERP modernization

    BCG · Technology / consumer goods · Advanced · 35-45 min

    A consumer goods company needs to upgrade its ERP system and must decide how to approach cloud migration.

  • Measure and improve ROI from GenAI pilots in financial services

    BCG · Financial Services / AI & Automation · Advanced · 35-45 min

    A large investment bank has launched 12 GenAI pilot programs across trading, risk management, and client advisory. Results are mixed—some show strong promise, others are underperforming. Leadership needs a framework to m…

  • Retire legacy systems and consolidate technology footprint

    BCG · Technology / Operations · Intermediate · 25-35 min

    A large retail bank operates 40+ legacy systems built on deprecated technology (COBOL, mainframe) that costs $200M annually to maintain. Business capabilities have been replicated in modern systems. Develop a legacy syst…

Bain case interview examples

  • Loyalty Programme Overhaul at a GCC Hypermarket

    Bain · Strategy · Medium · 25-35 min

    A GCC hypermarket chain — 220 stores, 9M loyalty members of which 70% have not transacted in the last quarter, NPS 14, average basket AED 95. The board wants 'a world-class loyalty programme' rebuild. The CMO is pushing…

  • PE-Backed Logistics Software Carve-out

    Bain · Tech Consulting · Medium · 25-35 min

    A PE fund has carved a last-mile routing SaaS out of a global courier parent. The new standalone — 180 staff, $40M ARR, 60% gross margin — has an 18-month TSA covering payroll, billing, ITSM, identity, and the data lake.…

  • Market entry in food and beverage

    Bain · Food and beverage · Beginner · 20-30 min

    A client faces a time-sensitive market-entry opportunity in food and beverage and needs a fast recommendation.

  • Growth in the public sector

    Bain · Public sector · Intermediate · 25-35 min

    A public sector organization wants to identify growth opportunities while navigating bureaucracy and changing market dynamics.

  • Market sizing in travel and tourism

    Bain · Travel and tourism · Intermediate · 25-35 min

    A travel business facing weaker performance needs a sharper view on market potential and strategic recovery options.

  • Design an AI governance and risk framework for a global bank

    Bain · Financial Services / Risk Management · Advanced · 35-45 min

    A global bank is deploying AI and GenAI models across lending, fraud detection, and customer service. Regulators have signaled concern about model transparency, bias, and accountability. Design a governance framework tha…

  • Migrate monolithic e-commerce platform to microservices

    Bain · Technology / E-Commerce · Advanced · 35-45 min

    A $5B e-commerce company’s monolithic platform is limiting feature velocity and scalability. Built 10 years ago, it serves 50M monthly users across 5 geographies. Architect a migration to microservices that improves agil…

EY case interview examples

  • Modern Data & AI Platform for a KSA Bank

    EY · Tech Consulting · Hard · 35-45 min

    A mid-tier Saudi retail bank — ~3M customers, four legacy core systems, monthly regulatory reporting that takes ten days — wants a 12-month build of a modern data and AI platform. Budget is SAR 3.5–5M. SAMA Cyber Securit…

  • GCC Insurer Considering Embedded Insurance

    EY · Strategy · Medium · 25-35 min

    A top-3 KSA general insurer — strong motor and medical books — is watching its direct-channel loss ratio deteriorate from 78% to 91% over two years. The CEO has been pitched embedded insurance by three startups: motor co…

  • Build a path to net zero

    EY · Sustainability / strategy · Advanced · 35-45 min

    An organization wants a realistic path toward net zero and needs to decide where to invest first.

  • Find the next S-curve of growth

    EY · Growth strategy · Intermediate · 25-35 min

    A business needs to identify the next engine of growth as its current core slows down.

  • Restructure a fashion business under pressure

    EY · Consumer / restructuring · Advanced · 35-45 min

    A fashion brand is under pressure and needs a restructuring plan that protects value while restoring performance.

  • Build an AI implementation roadmap for manufacturing supply chain

    EY · Manufacturing / Operations · Intermediate · 25-35 min

    A large manufacturing company wants to use AI to optimize supply chain operations—demand forecasting, inventory management, and logistics routing. They have fragmented data systems and limited AI capabilities. Build a 3-…

PwC case interview examples

  • Audit-Ready Data Lineage at a UK Asset Manager

    PwC · Tech Consulting · Medium · 25-35 min

    A £140B AUM UK asset manager. Six underlying ledgers, three reporting tools, two ESG vendors, monthly board pack assembled half in Excel. FCA Consumer Duty has just bitten — the firm must be able to evidence the lineage…

  • ESG-Linked Refinancing for a UAE Logistics Group

    PwC · Strategy · Hard · 30-40 min

    A family-run UAE logistics group — AED 9B revenue, 14,000 employees, $1.2B of debt maturing in 14 months. The lending syndicate is pushing a sustainability-linked loan with three KPIs: scope 1+2 absolute emissions reduct…

  • Respond to tech disruption in a core business line

    PwC · Technology / business model · Intermediate · 25-35 min

    A client’s traditional business line is under pressure from new technology-led competitors.

  • Choose a strategic growth path

    PwC · Growth strategy · Beginner · 20-30 min

    A company has multiple possible growth paths but limited resources and needs to choose the most attractive one.

  • Modernize an operating model without losing control

    PwC · Operations / transformation · Intermediate · 25-35 min

    A client wants to modernize how work gets done, but leadership worries about disruption and unclear ownership.

  • Consolidate fragmented SaaS vendor landscape

    PwC · Technology / Operations · Intermediate · 25-35 min

    A global tech company has 250+ SaaS applications across departments with high redundancy and poor contract management. CIO wants to consolidate to 50 strategic vendors, saving costs and improving security posture. Develo…

  • Transition from project to product-based delivery model

    PwC · Technology / Organization · Intermediate · 25-35 min

    A large enterprise software company has historically delivered solutions through project engagements. Market is shifting toward SaaS products and ongoing customer relationships. Redesign the business model from project t…

Deloitte case interview examples

  • Digital transformation under leadership pressure

    Deloitte · Digital transformation · Intermediate · 25-35 min

    A client’s leadership team wants a digital transformation plan but is divided on where to start and how fast to move.

  • Improve margins without breaking the operating model

    Deloitte · Operations / performance improvement · Beginner · 20-30 min

    A client faces margin pressure and wants to improve profitability without damaging customer experience or delivery.

  • Redesign a customer experience that is failing

    Deloitte · Customer / transformation · Intermediate · 25-35 min

    A company is losing customers because the experience is slow, inconsistent, and poorly coordinated across channels.

  • Make vs. buy decision for enterprise ERP system

    Deloitte · Technology / Operations · Intermediate · 25-35 min

    A mid-cap manufacturing company’s ERP system is 15 years old and constraining growth. CFO is considering buying a modern SaaS ERP versus continuing to customize and maintain their legacy system. Compare the options and r…

  • Redesign IT cost structure from CapEx to OpEx model

    Deloitte · Technology / Finance · Intermediate · 25-35 min

    A large manufacturing company’s IT cost structure is 60% CapEx (hardware, data centers) and 40% OpEx. Leadership wants to shift to 30% CapEx / 70% OpEx through cloud adoption and managed services. Design the financial an…

Accenture case interview examples

  • Evaluate IT operations outsourcing opportunity

    Accenture · Technology / Operations · Intermediate · 25-35 min

    A Fortune 500 healthcare company operates a 500-person IT operations team with high costs and inconsistent service levels. Leadership is considering outsourcing IT infrastructure and support services to reduce headcount…

  • Build an API-first platform for partner ecosystem

    Accenture · Technology / Platform · Intermediate · 25-35 min

    A B2B financial services company wants to expand beyond direct sales to a partner ecosystem. Strategy requires building an API-first platform that enables partners to integrate, create custom solutions, and access data s…

Kearney case interview examples

  • Procurement Digital Transformation for a Saudi Champion

    Kearney · Tech Consulting · Medium · 25-35 min

    A Saudi state-owned industrial group — SAR 18B annual third-party spend across maintenance, capital projects, and indirect categories. Purchase-to-pay is manual and paper-driven, with a 23-day cycle time. Vision 2030 man…

  • Operating Model Redesign for an Energy Trading Arm

    Kearney · Strategy · Easy · 20-30 min

    A global energy major's trading and supply arm has doubled headcount to 2,400 in five years. Two regional desks are increasingly fighting over the same flow. Return on capital has slipped from 28% to 17%. The COO wants a…

  • Promotional planning

    Kearney · Consumer / retail · Intermediate · 25-35 min

    A consumer business needs a better promotional planning approach that improves performance without wasting spend.

  • Procurement transformation under cost pressure

    Kearney · Industrial / operations · Intermediate · 25-35 min

    A manufacturer needs to lower input costs without hurting supply resilience or service levels.

  • Growth strategy with operational follow-through

    Kearney · Cross-industry growth · Advanced · 35-45 min

    A client wants a growth strategy, but previous plans failed because execution lagged behind ambition.

Cloud & Infrastructure case studies

Migration ROI, data-center exit, IT cost, legacy modernization.

  • On-Prem to Cloud — Is the Migration Worth It?

    Technology Track · Cloud & Infrastructure · Medium · 25-35 min

    A mid-size enterprise runs ~400 applications across two aging on-prem data centers. Annual run cost is about $42M (hardware refresh, facilities, licenses, ops staff). The CIO wants to migrate to public cloud over three y…

  • Logistics Firm Spending $20M/yr on Data Centers

    Technology Track · Cloud & Infrastructure · Hard · 35-45 min

    A logistics company spends $20M a year running on-prem data centers that host its warehouse, routing, and tracking systems — latency-sensitive workloads tied to physical operations. A hardware refresh worth $35M is due i…

  • Replacing a 20-Year-Old ERP

    Technology Track · Cloud & Infrastructure · Hard · 35-45 min

    A manufacturer runs a heavily customized 20-year-old ERP that no vendor will support past three years. Finance, supply chain, and production all depend on it, and prior 'big-bang' replacement attempts at peer firms have…

  • Cutting 15% From the IT Budget

    Technology Track · Cloud & Infrastructure · Medium · 25-35 min

    A financial-services firm's IT budget has grown to $300M, roughly 8% of revenue and well above the 5% peer benchmark. A new CFO wants 15% out within a year without harming regulatory-critical systems or the digital roadm…

AI & Automation case studies

GenAI rollout, workforce redesign, data & AI strategy.

  • GenAI to Deflect 30% of Call-Center Volume

    Technology Track · AI & Automation · Medium · 25-35 min

    A company's contact center handles 8M calls a year at roughly $6 per call. The COO wants generative AI to deflect 30% of volume within 12 months. The CX team worries about hallucinated answers and brand damage; the CFO h…

  • Redesigning the Workforce Around AI

    Technology Track · AI & Automation · Hard · 35-45 min

    A 12,000-person services company believes AI can automate or augment large parts of its knowledge work. The CEO wants a workforce strategy: where AI replaces tasks, where it augments people, what new roles emerge, and ho…

  • Company Wants an 'AI Strategy' — Where to Start

    Technology Track · AI & Automation · Medium · 25-35 min

    A retailer's CEO has told the board the company will be 'AI-first,' but there's no data foundation, unclear ownership, and a dozen disconnected pilots that never scaled. You're asked to turn the ambition into a strategy:…

Cybersecurity case studies

Incident response, security investment trade-offs.

  • Fintech Hit by Ransomware

    Technology Track · Cybersecurity · Hard · 35-45 min

    A fintech with 2M customers has been hit by ransomware. Core systems are encrypted, the attacker demands $5M in crypto, and customer-facing services are down. The CEO wants an immediate response plan and, once stable, a…

  • How Much Should We Spend on Cybersecurity?

    Technology Track · Cybersecurity · Medium · 25-35 min

    A retailer's board is split: the CISO wants to double the $25M security budget after a peer's breach made headlines; the CFO wants evidence, not fear. You're asked to frame how much the company should actually invest, wh…

Build vs Buy case studies

Build, buy, or partner — platforms, apps, vendors.

  • Build or License a Software Platform

    Technology Track · Build vs Buy · Hard · 35-45 min

    An automotive company wants a connected-vehicle software platform (telematics, OTA updates, in-car services). It can build in-house, license from a specialist vendor, or partner. Building gives control but the company ha…

  • Banking App — License the Core or Build It

    Technology Track · Build vs Buy · Easy · 20-30 min

    A retail bank needs a new mobile app. It can license a white-label banking app platform (fast, proven, but generic) and build only its personalization and loyalty features on top, or build the whole thing in-house for fu…

  • E-commerce Platform — Build, Buy, or SaaS

    Technology Track · Build vs Buy · Medium · 25-35 min

    A $500M-revenue retailer's e-commerce platform is creaking and limits growth. Options: adopt a hosted SaaS commerce platform, license a packaged platform to self-host, or build custom. The CMO wants speed and rich featur…

  • Choosing Between Two Software Vendors

    Technology Track · Build vs Buy · Easy · 20-30 min

    A company is choosing a new CRM. Vendor A is the market leader — feature-rich, expensive, heavier to implement. Vendor B is cheaper, simpler, faster to deploy, but less proven at scale. Sales wants A, finance wants B, IT…

  • Acquiring a New Technology Capability

    Technology Track · Build vs Buy · Medium · 25-35 min

    A consumer-goods company wants a direct-to-consumer data and personalization capability it doesn't have today. It can build the team and tech, acquire a small martech startup, or partner with a specialist. Speed matters,…

SaaS & Monetization case studies

Unit economics, churn, pricing transformation.

  • Why Isn't This SaaS Business Profitable?

    Technology Track · SaaS & Monetization · Hard · 35-45 min

    A B2B SaaS company has grown ARR to $80M but still burns cash and the board is losing patience. Gross margin is 68% (low for SaaS), net revenue retention is 95%, CAC payback is 22 months, and sales & marketing eats 60% o…

  • Repricing a SaaS Product

    Technology Track · SaaS & Monetization · Medium · 25-35 min

    A SaaS company prices per-seat, but customers are sharing logins and usage no longer tracks value — the heaviest users pay the same as light ones. AI features have also raised the company's cost-to-serve. Leadership is c…

Product & Growth case studies

Launches, marketplaces, engagement, retention.

  • Should We Launch This New Product?

    Technology Track · Product & Growth · Medium · 25-35 min

    A software company has built a new product adjacent to its core and must decide whether to launch, and if so, how to go to market. Engineering loves it, but it's unclear there's real demand, it could cannibalize the core…

  • Launching a Two-Sided Marketplace

    Technology Track · Product & Growth · Hard · 35-45 min

    A company wants to launch a two-sided marketplace connecting service providers with customers in a fragmented industry. The classic problem looms: no buyers without sellers, no sellers without buyers. The board wants to…

  • Streaming Platform — From Growth to Retention

    Technology Track · Product & Growth · Medium · 25-35 min

    A global video-streaming service has saturated its core markets — subscriber growth has stalled and churn is rising. Leadership has relied on subscriber adds as the headline metric; now the game is retention, engagement,…

  • Social Platform — Reversing Declining Engagement

    Technology Track · Product & Growth · Medium · 25-35 min

    A social platform's daily active users are flat but time-spent and content-creation are declining, especially among younger users who are drifting to a short-video competitor. The product team wants to ship a short-video…

  • Music App — Converting Free Users to Paid

    Technology Track · Product & Growth · Medium · 25-35 min

    A freemium music-streaming app has 200M free users and 40M paid. Free-to-paid conversion has plateaued at 20%, content (royalty) costs scale with listening regardless of whether a user pays, and the ad-supported tier bar…

  • Premium Device Maker — Defending the Ecosystem

    Technology Track · Product & Growth · Hard · 35-45 min

    A premium consumer-hardware company makes most of its profit on devices but increasingly on a high-margin services/ecosystem layer (app store, subscriptions, accessories). Hardware sales are maturing, regulators are chal…

  • E-commerce Giant — Sustaining the Flywheel

    Technology Track · Product & Growth · Hard · 35-45 min

    A large e-commerce platform built its dominance on a flywheel: low prices and selection draw customers, customers draw third-party sellers, scale lowers cost, and the loop repeats — with logistics and a high-margin cloud…

Digital Transformation case studies

Operating-model change, automation, sector digitization.

  • Digital Transformation of a Traditional Business

    Technology Track · Digital Transformation · Medium · 25-35 min

    A traditional industrial distributor — manual processes, paper-based ordering, no digital channel — is losing share to digital-native competitors. The CEO has approved a 'digital transformation' but past technology proje…

  • Automating Manual Back-Office Processes

    Technology Track · Digital Transformation · Easy · 20-30 min

    An insurer's back office processes claims and policy changes manually — slow, error-prone, and expensive, with 600 staff in operations. Leadership wants to automate using a mix of RPA, workflow tools, and AI document pro…

  • Digitizing Industrial Operations (IIoT)

    Technology Track · Digital Transformation · Hard · 35-45 min

    An energy/heavy-industry operator wants to digitize field operations — sensors (IIoT), predictive maintenance, and a digital twin — to cut unplanned downtime and maintenance cost. Equipment is decades old, connectivity i…

  • Smartphone Maker Losing the Mid-Market

    Technology Track · Digital Transformation · Medium · 25-35 min

    A smartphone manufacturer is squeezed — premium rivals own the high end, low-cost players own the bottom, and its mid-market share is eroding. Margins are thin, R&D is sub-scale versus giants, and the ecosystem (apps, se…