ATS Buyer's Guide 2026: Which Applicant Tracking Systems Do UK Employers Actually Use?

Most articles about applicant tracking systems are written for HR teams deciding what software to buy. This one is written for you, the job seeker, because the system your target employer uses has a direct impact on whether your CV ever gets seen by a human. The wrong formatting, the wrong keyword choices, the wrong file type: any of these can get you filtered out before a hiring manager knows your application arrived.

The UK job market is not uniform. A multinational bank, an NHS trust, a fast-growing fintech, and a 20-person accountancy firm might all have completely different systems sitting between your CV and a decision-maker. Understanding the landscape, sector by sector, lets you make smarter choices before you apply rather than hoping for the best.

This guide covers the real-world picture based on well-established platform usage patterns. No invented statistics, no guesswork. Just a practical breakdown of what you are likely facing and what to do about it.

Large Corporates: Workday, SAP SuccessFactors, and Oracle Taleo

If you are applying to a FTSE 100 company, a major bank, a large insurer, or a well-known retailer, there is a strong chance you are dealing with one of three enterprise-grade platforms: Workday, SAP SuccessFactors, or Oracle Taleo. These systems are built for scale, not for candidate experience.

Workday has become the go-to choice for large UK employers in recent years. It parses CVs into structured data fields, pulling out your name, employment history, education, and skills. The problem is it does not always do this cleanly. Two-column layouts, tables used for formatting, text boxes, headers with icons, and graphic design elements can all cause the parser to mangle your information. Workday also prompts candidates to manually re-enter details after uploading, so whatever you submit is not necessarily the data a recruiter sees. Always check the parsed version before hitting submit.

SAP SuccessFactors is common across large manufacturing, logistics, and professional services organisations. It has similar parsing limitations. Plain text, standard section headings, and bullet points survive the import process reliably. Anything more adventurous is a gamble.

Oracle Taleo was the dominant enterprise ATS for well over a decade and remains in active use at many large organisations that have not yet migrated to a newer platform. It is one of the more rigid parsers on the market. Multi-column CVs frequently break. Keyword matching matters because Taleo's screening logic can rank and filter applications before any recruiter touches them.

The common thread: clean, single-column formatting is your safest bet across all three. Use standard section headings such as Work Experience, Education, and Skills. Avoid tables. Save as DOCX or PDF, but follow the employer's stated preference when one is given.

Public Sector, NHS & Civil Service: Bespoke Portals and Values-Based Forms

The public sector operates entirely differently to the commercial world. NHS Jobs (the national recruitment portal for NHS vacancies in England) and Civil Service Jobs (the government's central portal) are not traditional ATS platforms. They are built around structured application forms, and in most cases your CV is not the primary document at all.

For NHS roles, you typically complete an application form that maps directly to the job's person specification. You write evidence statements against each essential criterion, and shortlisting panels score these responses against the spec. Using the same language as the person specification matters because panels are looking for direct evidence against each listed requirement. Formatting is largely irrelevant here because there is no CV parse happening.

Civil Service applications follow the Success Profiles framework. Depending on the role and grade, you may be assessed on behaviours (such as Communicating and Influencing or Making Effective Decisions), strengths, experience, technical skills, or ability. The STAR method (Situation, Task, Action, Result) is the expected format for behaviour responses. If you are applying through Civil Service Jobs, treat each behaviour response as a standalone piece of targeted writing rather than a summary of your CV.

Some local authorities and arm's-length bodies procure commercial platforms including Taleo and various mid-market tools. Others run in-house legacy systems. The safest assumption: read the application guidance for each role carefully, because the process often differs from what you would expect based on your commercial-sector experience.

Scale-ups & Tech: Greenhouse, Lever, and Ashby

If you are applying to a tech company, a venture-backed startup, or a fast-growing scale-up, you are most likely looking at Greenhouse, Lever, or Ashby. These are modern recruiting platforms built for high-volume, structured hiring pipelines. They tend to be more candidate-friendly than enterprise legacy systems, but that does not mean you can be complacent.

Greenhouse is the most widely used among mid-size and larger tech companies. It parses CVs reasonably well, supports custom application questions, and integrates with sourcing, interview scheduling, and offer tools. A well-formatted CV is unlikely to break on Greenhouse, but keyword relevance still matters because recruiters use search and filters heavily within the platform.

Lever is popular with organisations that do a lot of relationship-based hiring and talent pipeline management. It has CRM-like features that let recruiters track candidates over time. From a candidate's perspective, the application experience is similar to Greenhouse.

Ashby has grown quickly among UK scale-ups, particularly in tech and B2B SaaS. It is newer and tends to be adopted by companies that place emphasis on data-driven recruiting. Application forms are clean and straightforward.

These platforms are generally more forgiving than enterprise legacy systems. That said, most allow recruiters to add screening questions, knockout criteria, and structured scorecards. Your CV needs to match the role clearly enough to pass both the initial system filters and an early human review, which at a busy scale-up might last less than 30 seconds.

SMEs: Often No Formal ATS at All

Small and medium-sized businesses frequently have no dedicated applicant tracking system. Applications arrive by email, through a basic contact form on the company website, or via LinkedIn Easy Apply. In these cases, your CV goes directly to whoever is doing the hiring, often a founder, an office manager, or a department head who has no formal recruiting background and is reviewing applications between other responsibilities.

This changes the calculus entirely. There is no parsing to worry about, but there is also no structured screening process to navigate. Your CV needs to be readable by a non-specialist at a glance. Clear structure, concise bullet points, and an immediately obvious match to what the role requires will matter far more than keyword density.

Some SMEs use lightweight hiring tools such as Workable, TeamTailor, or Pinpoint. These do not do sophisticated keyword filtering in the way enterprise platforms do. A clean, human-readable CV tailored to the role will consistently outperform one that has been optimised purely for machine parsing.

Key Takeaways

• Large corporates use enterprise platforms with strict parsing limitations. Single-column formatting and plain text survive best.
• The NHS and civil service use structured application forms, not CV uploads. Your evidence statements and behaviour responses matter more than your formatting choices.
• Scale-ups and tech companies use modern platforms that are more forgiving, but keyword relevance and clear tailoring still count.
• SMEs often have no ATS. Your CV goes to a person. Clarity and immediate relevance to the role are what matter.
• One strong ATS-safe base CV, tailored per application, covers most scenarios more efficiently than trying to build separate CVs from scratch each time.

So What Should You Actually Do?

The answer is not to build four different CVs from scratch. It is to create one strong, ATS-safe base CV and then tailor it deliberately for each application. The base does the heavy structural lifting. The tailoring is what gets you through the keyword filters and past the first human review.

Your base CV should follow these steps:

1. Use a clean, single-column layout. Remove text boxes, tables used for layout purposes, and headers containing icons or logos. This format survives the widest range of ATS parsers reliably.
2. Use standard section headings. Work Experience, Education, Skills, and Summary are parsed consistently. Creative alternatives are not.
3. Save in the right format. DOCX is the safest default across most platforms. PDF works well on modern systems but can cause issues on older deployments. Always follow the employer's stated preference where one exists.
4. Mirror the language of the job description. This is not keyword stuffing. It is genuine alignment. If the job description says "stakeholder management", do not substitute "relationship building" and hope the system connects them.
5. Check your score before submitting. Use JD2CV's free ATS score checker to see how well your CV matches the specific job description you are applying for and where the gaps are.

For a step-by-step walkthrough of the tailoring process, read our guide on how to tailor your CV to a job description. Before you submit any application, run through the ATS CV checklist to catch the most common formatting and keyword issues.

For public sector applications, the base CV logic mostly does not apply. You will be writing targeted evidence statements instead. Treat each one as an individual piece of writing, matched precisely to the criteria listed in the person specification.

For SME applications, resist the urge to over-optimise. Let the CV breathe. The person reading it might be the managing director, and they will notice padding.

FAQ

What ATS do most UK employers use?

It depends heavily on employer size and sector. Large corporates commonly use Workday, SAP SuccessFactors, or Oracle Taleo. The public sector uses government-built portals like NHS Jobs and Civil Service Jobs. Scale-ups and tech companies frequently use Greenhouse, Lever, or Ashby. Smaller businesses often have no formal ATS at all and receive applications directly by email.

Does the NHS use an ATS to screen CVs?

NHS organisations in England advertise roles through NHS Jobs, a government-run portal. Rather than scanning CVs through a traditional ATS, NHS Jobs uses structured application forms where candidates write evidence responses against each criterion on the role's person specification. Your CV is rarely submitted or reviewed as the primary document. What matters most is how clearly your evidence statements address each listed requirement.

Will a PDF CV pass through an ATS?

In most cases, yes. Modern platforms including Greenhouse, Lever, Workday, and Ashby handle PDFs reliably. However, older systems such as some deployments of Oracle Taleo can struggle with certain PDF types, particularly those created in design tools like Canva or Adobe Illustrator rather than Word or Google Docs. DOCX is the safer default unless the employer specifically requests a PDF.

How do I know which ATS a company is using?

You often cannot tell with certainty before applying. Useful clues include the URL of the application portal (Greenhouse application pages typically include greenhouse.io in the URL; Lever pages include lever.co), the structure and style of the application form, and whether the portal has a recognisable name. For NHS and civil service roles the portal is named explicitly. For large corporates, the Workday portal is often branded with the employer's name but runs on a recognisable interface.

Is it worth tailoring my CV for every single application?

Yes, but not to the point of rewriting from scratch each time. A well-built ATS-safe base CV needs targeted keyword and phrasing adjustments per role, not a complete overhaul. Using a tool like JD2CV's ATS score checker makes this faster by showing you exactly where your CV aligns with a job description and where it does not, so you know what to adjust rather than guessing.