Management consulting: what the job is and how to get in

Management consultants are outsiders paid to solve a specific problem that an organisation cannot, or will not, solve alone: whether to enter a market, why margins are falling, how to cut costs without killing growth, whether to buy a competitor. A small team spends weeks or months on that one question, gathers the facts, does the analysis and lands a recommendation that senior leaders can act on. Getting in means passing the case interview, a live problem-solving test that rewards structure, numeracy and clear communication far more than prior business knowledge.

It is one of the most sought-after graduate careers for good reasons. Few jobs put a 23-year-old in front of a chief executive within months, or let someone work on retail pricing in the spring, a hospital network in the summer and an energy acquisition in the autumn. The skills it builds, breaking down messy problems, working with data, writing a clear argument and persuading sceptical people, transfer to almost any senior role. It is also demanding, frequently exhausting and built on a career model that pushes most people out within a few years, which is why it is worth understanding how the industry works, and why it works that way, before you commit months to the application process.

What consultants actually do

Consulting work is organised in projects, also called engagements, studies or cases. Each one starts with a question the client has agreed to pay to have answered, and ends with a recommendation, a plan or, increasingly, a change that the consulting team has helped to carry out. Projects range from short diligence work lasting a few weeks to transformation programmes that run for a year or more.

The work is done by a small team. At a strategy firm a common shape is a partner who owns the client relationship, a project manager who runs the work day to day, and two to four consultants who do most of the analysis. Larger firms add specialists, research staff, data scientists and designers as needed, and implementation projects can involve dozens of people.

The junior consultant's core job is to own a piece of the problem, usually called a workstream, and to turn it from a vague question into a defensible answer. That means deciding which facts would settle the question, getting the data (from the client's systems, from interviews with customers and experts, from market reports), analysing it in Excel or increasingly in Python or a BI tool, and writing up what it shows. Nearly all of this ends up in PowerPoint, because a consulting deck is the product the client sees. Each slide is built around a single message stated in the title, and the chart beneath it exists to prove that message.

What sets consulting apart from an analyst role inside a company is the mix of time pressure, senior audiences and independence: becoming credible on an unfamiliar industry in days, and telling people with twenty years more experience things they may not want to hear. Firms organise expertise by industry (healthcare, energy, financial services) and by function (pricing, operations, M&A), but juniors are usually generalists staffed across both, specialising gradually.

How consulting firms make money

Almost everything about a junior consultant's life, from the hours to the up-or-out system, follows from the business model.

Selling projects

The people who sell consulting are the partners. A partner's job is to know a set of clients well enough to spot problems early, shape them into a project and win it, often against competing firms. Many projects begin with an informal conversation and turn into a written proposal setting out the question, approach, team, timeline and fee. Repeat business matters enormously, because a firm that has done good work is best placed to win the next project.

Billing teams, not hours

Consulting work is often priced per project or per team over a period of time rather than strictly by the hour, though pricing models vary by firm and by type of work. The detail matters for the junior's life: if the fee is fixed, the firm earns nothing extra when the team works longer. Long evenings before a steering committee are not padded billable hours; they are the cost of delivering what was promised.

The leverage model

The economic engine of a consulting firm is leverage: the ratio of junior people to senior people. A partner might oversee three or four projects at once, each with a manager and several consultants. The client pays for the whole team, the juniors cost the firm far less than the partner, and so the more productive juniors each partner can supervise well, the more profitable the firm is.

The other number that matters is utilisation, the share of consultants' time spent on paid client work. A consultant between projects, said to be "on the beach", is pure cost, so staffing teams quickly and keeping them busy is a constant management concern.

Why the model needs up-or-out

A pyramid only works if it stays a pyramid. If everyone who joined as an analyst stayed for decades, the firm would end up with too many expensive senior people and too few juniors to leverage. The traditional answer at the top firms is up or out: people are expected to be promoted within a broadly predictable time at each level, and those who are not are encouraged to leave. The result is a constant flow of graduates in and alumni out, and those alumni often become future clients. The model is harsh, but coherent.

Types of consulting firms

The firms that recruit most heavily on campus fall into a handful of groups, which differ in work, culture and career path.

Strategy firms and MBB

MBB's core work is strategy and major change for senior leadership: growth strategy, mergers, large performance programmes and commercial due diligence for private equity investors. They now also do a great deal of implementation and analytics work, so the old picture of a firm that writes a report and leaves is out of date. The other strategy firms often have particular strengths, such as financial services, European industrial clients or private equity work, and interview in a very similar way.

The Big Four and large implementation firms

The Big Four consulting arms each have strategy units that compete with the strategy firms, but much of their work is operations, technology, finance transformation and risk. Projects tend to be longer and larger, and graduates often join a specific service line rather than a generalist pool. For candidates, the key question is which part of the firm you are applying to: a strategy team and a systems-implementation team are very different jobs.

Boutiques and specialists

Boutiques are smaller firms focused on a sector (healthcare, energy, consumer, public sector) or a function (pricing, procurement, organisation design). They can offer earlier responsibility, closer contact with partners and real depth in one area, at the cost of a smaller brand and a narrower set of exit options. Their interviews often include more sector-specific questions alongside a standard case.

In-house strategy

Internal strategy teams, often staffed by former consultants, do consulting-style work for one organisation. The trade-off is a more predictable lifestyle and the chance to see decisions through, against less variety. Some recruit graduates directly with case-style interviews.

A project from start to finish

The clearest way to understand the job is to follow one project through its life. The following example is fictional and simplified, but the shape is typical of a strategy engagement.

The proposal

Nordhavn Foods is a mid-sized Danish frozen-food producer with revenue of around €800 million. Three years ago its operating profit (EBIT) was €72 million, a 9% margin. Last year it was €40 million, a 5% margin, despite revenue being roughly flat. The new chief executive wants to understand why and what to do about it before presenting a plan to the board in four months.

A partner who knows the chief financial officer helps sharpen the question from "why are we less profitable?" to something a project can answer: "What is driving the margin decline, and which actions could restore a margin of at least 8% within three years?" The proposal offers a ten-week project with a manager and three consultants, a set of workstreams and interim checkpoints. Competing firms pitch too; Nordhavn picks this team for its approach and its food-manufacturing experience.

Kick-off and the first hypotheses

The team arrives on day one with a draft issue tree: a structured breakdown of the question into parts that do not overlap and together cover the whole problem. Margin has fallen, so either revenue per unit has fallen, costs per unit have risen, or the mix has shifted towards less profitable products and customers. Each branch breaks down further: price, volume and promotions on the revenue side; raw materials, energy, labour, logistics and overheads on the cost side; product, channel and customer mix.

Consultants are trained to work hypothesis-driven: to state early what they think the answer might be and then test it, rather than collecting every possible fact. In week one the team's hypotheses are that energy and raw material inflation drove most of the cost increase, that Nordhavn failed to pass it on to large retail customers, and that the product range has grown in ways that add complexity without adding profit. Each hypothesis maps to a workstream, and each consultant owns one.

Data, interviews and analysis

The next four weeks are the heart of the project. One consultant works through two years of transaction data to build a price-volume-mix bridge: of the €32 million fall in EBIT, how much came from each driver? Another interviews plant managers, procurement staff and logistics leads, and benchmarks Nordhavn's cost per tonne against public data on competitors. The third analyses profitability by product and by customer, which requires allocating shared costs in a way the finance team agrees is fair.

Suppose the bridge shows that raw material and energy costs rose by €45 million, while price increases recovered only €25 million, a net hit of €20 million. Higher logistics costs explain another €6 million, and a shift in mix towards lower-margin private-label products explains the remaining €6 million. That is already a sharper story than the client had: two-thirds of the problem is incomplete price pass-through, not the cost increases themselves, which every competitor also faced.

The customer analysis then shows that the three largest retail customers account for nearly half of revenue and received the smallest price increases, while the product analysis reveals that the bottom fifth of the range by volume barely breaks even once complexity costs are included. Each finding becomes a slide or two, and every number is checked, because one wrong figure can undermine trust in the whole deck.

The steering committee

Most projects are governed by a steering committee, a group of senior client executives, often including the chief executive, who meet every few weeks to review progress and make decisions. At the mid-point steering committee in week five, the team presents the diagnosis. The commercial director pushes back on the pass-through finding, arguing that the large retailers would have delisted products if prices had risen further. This is normal and useful: the team had anticipated it and shows a comparison with two competitors who did push through larger increases without losing listings. The committee agrees to focus the second half of the project on a pricing and negotiation plan, a range rationalisation and a logistics review.

In the second half the work shifts from diagnosis to solutions. The team sizes each lever, works with client managers to test feasibility, and builds a roadmap with owners, milestones and financial targets. The final steering committee in week ten presents a plan to recover roughly €30 million of EBIT over three years, taking the margin back above 8%, together with the risks, the sequencing and the first hundred days of action. Several of the client's own managers co-present parts of it, which matters, because a plan the client owns is far more likely to be implemented.

The partner then discusses whether the firm should support the pricing negotiations and the range review over the next six months. That follow-on work, if won, is how the economics of the original project really pay off.

A week in the life

The rhythm varies by project and phase, but a strategy week has a recognisable pattern. Monday often starts early, with travel to the client or a team check-in, and the manager sets priorities: which analyses must be ready for Thursday's meeting, which interviews need to happen. The junior spends much of the day chasing and cleaning data.

Tuesday and Wednesday are the most productive. There might be two or three interviews with client staff or external experts in the morning, model-building in the afternoon, and a "problem-solving session" with the manager or partner where the team works through what the findings mean. These sessions are where juniors learn most, because they see how a senior person interrogates a chart: what else could explain this, is the sample big enough, what would the client's head of sales say?

Evenings are often where the deck gets built, in cycles of manager comments and revisions. Thursday may bring a client working session; Friday is frequently an office or home day for training, recruiting events and catching up.

The junior's output is concrete: a model someone else could audit, a synthesis of interviews, and slides that each make one evidenced point. Over time the skill shifts from producing those pieces to knowing which ones matter.

Career levels and up-or-out

Titles vary between firms, but the ladder is broadly consistent.

Analyst and consultant

Undergraduate and master's graduates usually join as a Business Analyst, Associate Consultant or simply Analyst. The job is to own analyses within a workstream: building the model, running the interviews, producing the slides. After a few years, strong performers are promoted to Consultant or Associate, which is also the usual entry point for MBA graduates and many PhDs. At this level you own a whole workstream, manage the client counterparts on it, and increasingly shape the storyline rather than just produce the pages.

Project leader and engagement manager

The next step, typically a few years later, is to run projects as an Engagement Manager or Project Leader. This is often described as the hardest jump, because the skills change: you are now responsible for the team's output, its morale, the client's day-to-day experience and the quality of the final recommendation. You write less and edit more, and you spend a growing share of time with senior clients.

Principal and partner

Above the manager level, people become Associate Partner, Principal or a similar title. They oversee several projects at once and start to build their own client relationships and sell work. Partners or Managing Directors own those relationships, sell and shape projects, lead practices and are accountable for the firm's results. At this level, the ability to generate work matters as much as the ability to solve problems, which surprises many people who joined for the analysis.

How up-or-out works in practice

Firms review performance formally, often twice a year, with input from the managers and partners you have worked with. People not progressing at the expected pace are counselled to leave, typically with time and help to find a new role. In practice far more people leave by choice, often after two or three years. Some firms have added expert tracks for people who want to stay without pursuing partnership, and the Big Four tend to have more varied paths. Treat up-or-out as a direction of travel rather than a cliff edge.

Hours, lifestyle and pay

Hours

Long weeks are common, particularly before steering committees and on diligence projects. Hours vary by firm, office and project, and often most of all by manager. Policies protecting evenings or weekends help, but the scope and deadline are fixed and the work has to be finished. Compared with investment banking, consulting hours are usually more predictable and weekend work less routine, although intense periods happen.

Travel

The traditional model was four days a week at the client site, Monday to Thursday. Many offices now mix client-site and remote work, and travel varies widely by country and client: in smaller markets such as the Nordics more clients are close by, while international projects can still mean heavy travel. It is a reasonable question to ask in interviews.

Pay structure

Consulting is among the best-paid graduate careers. Pay typically combines a base salary with an annual performance bonus, and the bonus becomes a larger share of the total with seniority. Strategy firms generally pay at the top of the consulting market. Firms frequently also sponsor MBAs for strong performers, and partners share in the firm's profits. Exact figures vary widely by firm, country and office and change from year to year, so rely on recent, office-specific information rather than global averages.

Backgrounds and routes in

Consulting firms recruit from almost every discipline. Business and economics graduates are common, but so are engineers, natural scientists, mathematicians, lawyers, medical doctors, historians and philosophers. The interview tests how you think, not what you already know about business, and firms deliberately hire diverse backgrounds because a team where everyone has studied the same thing tends to see problems the same way.

Target universities and beyond

Large firms recruit more heavily from certain universities, where they run presentations and case competitions. That makes access easier but is not a requirement: candidates from elsewhere succeed regularly by applying directly, using alumni and student consulting societies, and preparing seriously. Strong grades and evidence of leadership matter at screening.

PhDs and doctors

Firms actively recruit doctorates and medical graduates, often through dedicated events. The entry level for PhDs varies by firm, and research training in framing questions and testing hypotheses is valued. The adjustment is usually about speed and communication: moving from exhaustive accuracy to "good enough to decide", and from technical detail to a clear message for a non-specialist. Our guide to case interviews for PhDs, doctors and engineers covers this in depth.

Experienced hires

Professionals from industry, government, finance or technology can join at a level matched to their experience, often in a practice that uses their expertise. They still take case interviews, sometimes sector-flavoured, and the fit interview probes why they want to switch now and what they bring that a graduate would not.

Recruiting and online assessments

Internships and full-time roles

Entry-level hiring runs through two main routes. Internships, usually in the summer a year or two before graduation, give students a few weeks of real project work and often convert into full-time offers. Full-time graduate roles recruit final-year students and recent graduates. MBA, PhD and experienced-hire recruiting run alongside.

Timelines differ by country, by firm and from year to year, and some roles require the local language. Many firms review applications as they arrive, so check each firm's careers page early and apply as soon as applications open.

Online assessments

Many firms add an online assessment before the interviews. Formats differ by firm and change over time, from problem-solving games and online cases to numerical and verbal reasoning tests and recorded video interviews, so check what the firm you are applying to currently uses. Our overview of how consulting firms are using AI in recruiting covers the current landscape.

These tests reward the same skills as the case interview, and familiarity with the format helps. Do practice tests where they exist and treat the assessment as seriously as an interview, since a weak score usually ends the process.

Interview rounds

A typical process then has a first round of two interviews and a final round of two or three, often with partners. Each interview usually combines a case of 25 to 40 minutes with fit or behavioural questions. Some firms add a written case, where you analyse a pack of documents and present your recommendation, or a group exercise.

The case interview

The case interview is the main filter. The interviewer presents a business problem, often drawn from a real project, and you work through it together: an ambiguous question, incomplete information, some numbers, a sceptical senior person and limited time. To see the format, work through a full example such as our management consulting case example, a European market-entry question.

Candidate-led and interviewer-led cases

Cases come in two styles. In a candidate-led case, the interviewer gives you the problem and then largely follows you: you decide which areas to investigate, ask for the data you need, and drive towards a recommendation. In an interviewer-led case, the interviewer steers you through a sequence of questions, for example a structuring question, a chart, a calculation, a brainstorm and a final recommendation, and each part is assessed in turn. Firms have tended to favour one style or the other, but individual interviewers vary, so prepare for both. Our guide to candidate-led vs interviewer-led cases explains the differences in detail.

Clarifying and structuring

Strong candidates start by making sure they understand the question: what exactly the client wants to decide, what success looks like, and any constraints. Then they take a moment to build a structure, a breakdown of the problem into a small number of areas that together answer the question. For a question like "should Nordhavn launch a plant-based range?", a structure might cover the attractiveness of the market, Nordhavn's ability to win in it, the economics of entry and the risks.

The common mistake is to recite a memorised framework that does not fit. Interviewers have heard "the 4Ps" and "Porter's five forces" thousands of times, and they want to see a structure built for the problem in front of you, with specific questions under each branch and a sense of which matters most. Frameworks are a useful starting vocabulary; see our piece on when frameworks help and when they hurt.

The maths

Almost every case includes calculations: market sizing, break-even, profit impact, growth rates, payback periods. The maths itself is rarely hard, but doing it out loud, without a calculator, while explaining your logic and staying calm is a skill that needs practice. Suppose a client sells 2 million units a year at €25 with a variable cost of €15, and fixed costs of €12 million. Contribution per unit is €10, total contribution is €20 million, and profit is €8 million. If the interviewer asks how many units the client must sell to break even, the answer is €12 million divided by €10, or 1.2 million units. The test is less whether you get there than whether you set it up clearly, round sensibly, check that the result makes sense and then say what it means for the client. Our guide to mental maths under pressure covers the shortcuts that help.

Charts and exhibits

Most cases include exhibits, and the interviewer watches how quickly you find what matters. Read the title, axes and units, spot the one or two patterns that bear on the question, and say what they imply. If the chart shows that one customer segment has grown while the rest are flat, the insight is not "segment B grew"; it is "growth is concentrated in segment B, so the strategy needs to be built around winning there." Our guide to reading case exhibits and charts works through examples.

Brainstorming

Many cases include an open question: what could the client do to reduce churn, what risks should it consider, why might sales have fallen? Grouping ideas, for example into internal and external causes, shows structure and exposes gaps.

The recommendation

Cases end with a synthesis: the interviewer asks what you would tell the chief executive. The strongest answers lead with the recommendation, give two or three reasons supported by the numbers you found, name the main risks and suggest next steps. It should take under a minute and sound like something you would say in a lift, not a recap of everything you did. Being decisive matters: "it depends" is rarely an acceptable answer unless you say what it depends on and what you would recommend on current evidence.

How you are assessed

Interviewers typically score structure, quantitative skill, business judgement, communication and how you handle pushback. A calculation error you catch is not fatal; failing to notice an implausible result is worse. The underlying question is whether they would put you in front of a client next month.

The fit interview

Every interview round also tests fit, often for a third of the time or more, and candidates who prepare only for cases are regularly rejected on it. The fit interview asks three broad questions: why consulting, why this firm, and what evidence there is that you have the personal qualities the job needs.

"Why consulting?" deserves a genuine answer that connects something specific in your past to concrete features of the job, not a list of buzzwords. "Why this firm?" should rest on something you actually learned from people who work there, not lines from its website.

Behavioural questions ask for stories: a time you led a team, influenced someone without authority, handled a conflict, failed and recovered, or achieved something difficult. Prepare three to five experiences that you can tell in about two minutes each, with a clear situation, what you personally did, and the result. McKinsey's Personal Experience Interview, or PEI, is a well-known variant: rather than several short stories, the interviewer explores one story in great depth, asking what you were thinking, what others said, what you would do differently. Vague or exaggerated stories fall apart under that kind of questioning. Our guide to the McKinsey PEI vs a standard behavioural interview explains how to prepare for both.

How to prepare

Case interviews reward practice more than talent, and most candidates who receive offers have done a substantial amount of it. A realistic plan for someone starting from scratch, with six to eight weeks and a reasonable amount of time each week, might look like this:

1. In the first week or two, learn the fundamentals: the common case types (profitability, market entry, growth, pricing, mergers and acquisitions, market sizing), the business concepts behind them, and how to build a structure for an unfamiliar problem. Read a few worked cases to see what good looks like.
2. From the start and throughout, drill mental maths for fifteen to twenty minutes a day: percentages, growth rates, multiplying and dividing large numbers, and estimation.
3. From week two or three, practise full cases out loud, ideally two to four a week rising to more, with partners who can play the interviewer, with former consultants, or with an AI interviewer that asks follow-up questions and pushes back. Alternate between candidate-led and interviewer-led formats.
4. After each case, write down where you lost points, whether structure, maths, chart reading or synthesis, and aim the next week's practice at your weakest area.
5. In parallel, write and rehearse your fit stories and your answers to "why consulting" and "why this firm", and talk to people at the firms you are targeting.
6. In the final week or two, do practice assessments for the online tests you will face, run a few full mock interviews under realistic conditions, and taper rather than cramming.

If you have less time, our 4-week case interview prep plan compresses this into a month. The most common mistake is reading about cases instead of doing them; the second is practising only with peers, who may miss the weaknesses an experienced interviewer would spot.

Exits and whether it suits you

Where consulting leads

Consulting is often described as a launchpad, and fairly so: a few years in a good firm signals that you can solve problems, work hard and handle senior people. Common next steps include strategy, corporate development and business unit roles in large companies; private equity and other investing roles, especially from strategy firms with strong due diligence practices (our private equity guide covers that path); start-ups, either as a founder or in operating and strategy roles; the public sector and non-profits; and an MBA, frequently sponsored by the firm. A minority stay and become partners, a career that rewards people who enjoy client relationships and building a practice as much as the analysis itself.

Who thrives

People who do well in consulting tend to enjoy learning fast and being uncomfortable, because the first weeks of every project mean being the least knowledgeable person in the room on that industry. They like structure and numbers but also like people, since much of the job is interviewing, persuading and managing clients. They can take frequent, direct feedback without being crushed by it, and they can work to a high standard on tight deadlines without losing their temper or their judgement.

Who may not

If you want deep expertise in one field early, the generalist years can feel shallow. If you want to see decisions through, handing over a recommendation and moving on can frustrate. If you need a predictable schedule, the variable hours and travel are a real cost that can strain relationships and health, and burnout is a genuine risk for people who find it hard to say no. Go in with a clear idea of why you want it and how long you plan to stay, and revisit that question honestly after the first year.

FAQ

Do you need a business degree to become a management consultant?
No. Consulting firms hire from every discipline, including engineering, sciences, humanities, law, medicine and PhDs, and the case interview tests how you think rather than what you already know about business.

How many practice cases should you do before interviewing?
There is no fixed number, but most successful candidates do dozens of live practice cases with feedback, and the quality of the feedback matters as much as the count.

What is the difference between MBB and the Big Four?
MBB (McKinsey, BCG and Bain) focus mainly on strategy and major change programmes for senior leadership and are the most selective, while the Big Four consulting arms are larger and span strategy, operations, technology, risk and implementation, often over longer engagements.

What does up-or-out mean in consulting?
It means people are expected to be promoted within a broadly predictable time at each level and are encouraged to leave if they are not, which keeps the firm's pyramid shape; in practice most people who leave do so by choice, often after two or three years.

When should you apply for consulting internships?
Deadlines vary by firm, office and year, and since many firms review applications as they arrive it pays to apply as soon as applications open.

What is the difference between a candidate-led and an interviewer-led case?
In a candidate-led case you drive the analysis and decide what to investigate, while in an interviewer-led case the interviewer guides you through a set sequence of questions; individual interviewers vary, so it is worth practising both.

Can PhDs and experienced professionals get into consulting?
Yes. Firms actively recruit PhDs, doctors and experienced hires, usually at a level above graduate entry, and they still use case interviews, sometimes with a sector focus that draws on the candidate's background.