A product manager in Lisbon joins a company with offices in three countries. Her technical judgement is strong, her written English is clean, and her first months go well. Then the company restructures, decisions move into weekly calls with the US team, and she notices something: by the time she has formulated a point, the conversation has moved on. Nothing in her job description changed. What changed was the channel through which her work now travels.
That experience is becoming common as companies distribute their teams across borders, and it explains why English has shifted from a line on a CV to part of how work gets done.
English as the operating language of distributed work
When a company has colleagues in Warsaw, Bengaluru and Austin, it needs one language for the overlap, and in most sectors that language is English. The result is that a second language carries primary work: specifications, incident reports, performance conversations, client negotiations.
For employees, this changes what proficiency means. Reading comfortably is no longer enough when decisions happen in live meetings where people interrupt each other, use industry shorthand and move between topics without signposting.
Where the gap shows in remote and hybrid teams
Written English dominates distributed work: tickets, documentation, pull request descriptions, asynchronous updates. A specification full of long conditional sentences slows down a colleague who reads English at B1, and misunderstandings surface later as rework.
Spoken English carries a different pressure. Video calls strip away some of the cues that help in person, add varied accents and leave no time to prepare an answer. Many professionals who write well find calls disproportionately tiring for this reason, and that gap tends to go unnoticed until someone is asked to lead a client meeting.
English proficiency in hiring
Job ads for international roles have started naming levels rather than adjectives, because “fluent English” tells a recruiter almost nothing. Among forty applications it covers both the candidate who can handle a pricing negotiation and the one who freezes on a call.
Interviews test the claim directly. An interviewer who switches to English halfway through is checking the line on the CV, and a mismatch between the stated level and the conversation costs more credibility than a modest level stated accurately would have.
For employers, the same logic applies in reverse. Stating a required level makes applications easier to compare, and it prevents inflated requirements that reduce the candidate pool without improving the hire.
The link between language and career progression
Proficiency rarely changes a salary by itself. What it changes is access. Roles that involve client negotiation, vendor management, presenting to leadership or leading a distributed team all run on spoken English, and those are the roles that carry responsibility and budget.
A professional who can only operate in writing is effectively limited to a subset of positions inside an international company, however strong their technical work. Closing that gap widens the set of roles available, and over several years that matters more than any single promotion.
The CEFR levels, described through work
The Common European Framework of Reference for Languages, published by the Council of Europe in 2001, describes language ability in six levels defined by what a person can do rather than by test scores.
At A1 and A2, someone handles short, predictable exchanges: greeting a visitor, answering a simple message with a template. B1 marks the start of independence, where a person writes a clear email on a familiar topic and follows a meeting as long as nobody rushes.
C1 belongs to people who write proposals, present to senior audiences and catch the reservation hidden inside a politely worded email. C2 describes very advanced control of the language, including subtle shades of meaning, and matters most where the writing itself is the deliverable.
Why B2 appears in so many job requirements
The step between B1 and B2 is the one colleagues notice. At B2 English level, a professional takes part in a discussion with native speakers, reads a technical report in their field and defends a position without hunting for words in every sentence.
That is the threshold at which English stops being a subject someone studied and becomes a tool they use. It explains why B2 shows up repeatedly in listings for coordination roles, and why C1 appears where negotiation and persuasion are central.
No level guarantees a promotion. A manager at B2 with strong product knowledge and good judgement about people can outperform a colleague at C1. What the level indicates is which situations will demand extra effort, which makes it a planning tool rather than a verdict.
Why measuring the level objectively matters
Self-assessment drifts in both directions. Confident speakers tend to overrate their writing, and people who studied grammar carefully often underrate their listening. Neither error is harmless: one leads to overpromising in an interview, the other to not applying for a role that was within reach.
An online English proficiency test gives a neutral starting point. The assessment from International English Test runs in a browser and returns a CEFR band at the end, with an optional certificate carrying a QR code for verification. When an employer, a visa route or a university names a specific exam such as IELTS or TOEFL, that exam remains the document to present, and a level check beforehand shows which skills need work before booking it.
Turning a result into a development plan
The overall band matters less than the breakdown behind it. A professional at B1 gains most from structured practice with workplace English: meetings, phone calls and routine correspondence. Moving from B2 toward C1 requires sustained work on longer writing, from reports to emails that need to persuade rather than inform.
This distinction also makes the business case easier to put to an employer. “I am at B2 and my role requires C1 writing” is a request a manager can approve, while “I would like to improve my English” is not. Retesting after a few months shows whether the chosen approach is working, since moving up a full level takes sustained study rather than weeks.
A practical starting point
Look at the last conversation at work that did not go the way you wanted, whether a client call, a presentation Q&A or a thread where a colleague misread your message. Separate the part that was about the subject from the part that was about the language. The second part is usually smaller than it felt at the time, and it is the part you can measure, plan for and close.
