Deloitte, PwC, EY, KPMG. Names that sound like opportunity, like a first job with real weight, like a résumé that opens doors.
Have you ever told yourself, “I want to work at a Big 4 firm”?
Can you picture starting your career there?
But then the doubts show up: what should I study to get there? What if it’s not for me?
Among all university degrees, there isn’t a single one that takes you straight there. These firms hire people from a wide range of backgrounds. What matters most is the foundation you build, your English level, and the experience you bring with you.
In this article, we explain what the Big 4 are, which service lines you can join, how a career unfolds from associate to partner, what to study, how to get in, and whether it’s really worth it.
What Are the Big 4 Firms and What Do They Do?
The Big 4 are the four largest professional services firms in the world: Deloitte, PwC, EY, and KPMG.
They’re often called “consulting firms,” but their work goes much further: audit, consulting, tax and legal advice, deals, and technology.
And they’re a common gateway to a first job. For example, KPMG hired 850 professionals in Spain between September and October 2025, and 70% of them were recent graduates.
Big 4 Service Lines and the Profiles They Look For
| Service line | What you do in your first year | Profile that fits |
|---|---|---|
| Audit & Assurance | Review clients’ financial statements and test that they are accurate | Analytical, detail-oriented, finance background |
| Consulting | Help companies improve processes, strategy, or digital transformation | Problem-solver, strong communicator, business mindset |
| Tax & Legal | Support clients on taxes, contracts, and compliance | Rigorous, interested in regulation |
| Deals / Financial Advisory | Analyze companies in mergers, acquisitions, and sales | Strong in finance, comfortable under pressure |
| Technology & Risk | Work on cybersecurity, data, and risk control | Technical or business background with an interest in tech |
Don’t worry if you don’t have your service line clear yet. Many people find the one that suits them best during their internships.
The Big 4 Career Path: Levels and Timeline
One of the biggest draws of these firms is that the career path is structured. You move up level by level, and each step brings more responsibility.
The titles and timelines below are a typical reference. They vary by firm, country, and service line.
| Level | Typical years in the firm | What changes |
|---|---|---|
| Associate / Staff | 0–2 | You learn the methodology and support client work |
| Senior Associate | 2–5 | You lead fieldwork and supervise juniors |
| Manager | 5–8 | You run projects and manage the client relationship |
| Senior Manager / Director | 8–12 | You oversee several clients and develop business |
| Partner | 12+ | You co-own the firm and lead a practice area |
Can you make it all the way to the top? It happens. As a reference, 17 of the 31 new partners KPMG named in Spain during its 2024 fiscal year were internal promotions.
What to Study to Work at a Big 4 Firm
There’s no required degree, but some connect better with each service line. For example, among its recent graduate hires, EY has highlighted profiles with studies in business administration, engineering, and law.
Shall we look at the most common options?
| Degree | Most natural service lines | Why it fits |
|---|---|---|
| Business Management | Audit, consulting, deals | Broad foundation in finance, strategy, and management; a versatile business background |
| Economics | Deals, economic consulting | Economic analysis and financial modeling |
| Law (or Business + Law) | Tax & Legal | Regulation, contracts, and compliance |
| Engineering / Math / Data Science | Technology, risk, tech consulting | Technical and analytical background, key in technology and risk |
| Marketing / Communication | Client consulting, commercial strategy, marketing transformation | Understanding of customers and markets, strong communication skills |
How to Get Into a Big 4 Firm
Each firm has its own process, so check the one you’re interested in.
Take KPMG as an example. Its process starts with a résumé screening, continues with a call and an online test that measures your English level, moves on to team exercises and ends with an interview with the business team.
In KPMG’s case, graduate hires tend to start in September and October, although there are selection processes open all year.
To arrive prepared, work on these three things:
- Your English. Practice using it in professional settings, not just to pass a test.
- Teamwork. Group exercises assess how you think and how you collaborate, not just whether you give the right answer.
- Your motivation. Be ready to explain why you want that service line and that firm.
Is a Big 4 Career Worth It?
It depends on what you’re looking for. These firms usually offer:
- Structured training from year one.
- Exposure to clients in very different industries, which speeds up your learning.
- A résumé that carries weight and a network that stays with you afterward.
There are also a few things to keep in mind: the pace can be very demanding at certain times of the year, and the experience changes quite a bit depending on the service line, the office, and the team. That’s why there’s no single “best” Big 4 firm for everyone. The most useful approach is to compare service lines, selection processes, and training opportunities, and choose based on what you want to learn in your first few years.
How to Choose the Right University for a Big 4 Career
The university matters as much as the degree. These firms look for candidates with a solid foundation and, above all, certain traits:
- English-language education. Many clients and teams work in international environments, and the selection process often test your English: at KPMG, for example, it includes an online English test. Studying your degree in English is part of the preparation, not an extra.
- International experience. Working with people from other countries and cultures shows in an interview as much as on a project.
- Internships. Arriving with prior experience sets you apart from other candidates.
- Clubs and networking. Activities outside the classroom train teamwork and your ability to connect with people.
At CIS University, the Business Management degree meets all of these criteria:
- Taught entirely in English and following the American university system.
- Small classes and an international environment in the heart of Madrid.
- Internships built in: two mandatory internships totaling 600 hours, backed by agreements with more than 300 companies.
- An Investment Club to practice financial analysis as a team.
- The 2+2 option to finish your degree in the United States.
Explore the Business Management degree at CIS University
FAQs About a Big 4 Career
Before you decide, here are answers to the questions students ask most often about building a career at one of these firms:
It varies a lot by country, city, service line, and firm, and figures change every year. Starting salaries are lower than what you can earn a few levels up, since pay grows as you move from associate to manager and beyond. Before making a decision, check recent data for the specific country and office you’re aiming for.
Plenty. Many professionals stay and move up, and others take their experience elsewhere: finance departments at large companies, financial analysis, banking, smaller consulting firms, or their own startup. Others become accountants and pursue professional qualifications or build a global career in international business.
Not to get in. Most graduate programs hire people without a professional certification. These credentials matter later, especially in audit: in the United States, for instance, you need a CPA license to sign audit opinions, and many firms support employees who study for the CPA, ACCA or equivalent. Requirements differ by country, so check the rules of the market where you want to work.
Yes, but it depends on the country and on your work authorization. The Big 4 are global networks, so international mobility can be an option, but each office recruits and sponsors visas according to local rules. Strong professional English, an international profile, and internship experience, all things you can build during your degree, make the move easier.
Behind every large company there’s a team that reviews its numbers, advises it and helps it decide. A few years from now, that team could include you: analyzing a deal, solving a problem nobody had spotted, or sitting at the table with an international client. But to get there, you have to build your own path. Start with a solid foundation, an English level that opens doors, and real experience before you graduate.
Yes, the time to take the first step is now.