What is an Applicant Tracking System and How Does it Work?
Estimated reading time 9 minutes
Hiring is rarely straightforward. As soon as application volumes increase or multiple roles open at once, the process can quickly become difficult to manage. What starts as a simple inbox-based workflow often turns into a fragmented system where candidates are harder to track, compare, and progress efficiently.
This is where applicant tracking systems come in. They provide a centralised way to manage recruitment from start to finish, helping teams stay organised and make faster, more consistent hiring decisions.
The problem with manual hiring
Manual hiring processes can quickly become inefficient, especially as businesses grow. CVs are often scattered across inboxes and shared folders, which can make it easy for strong candidates to be missed. With no central system, applications lack structure and visibility, which can create confusion around who has applied and what stage they are at.
Screening is also inconsistent, as different hiring managers apply different criteria. This makes hiring decisions harder to compare or defend, and reduces confidence in the overall process. At the same time, HR teams spend a significant amount of time on admin-heavy tasks, like sorting CVs, chasing feedback, and updating spreadsheets, which slows down the entire process.
As recruitment volume increases, these issues compound. Manual systems struggle to scale, leading to longer hiring times and lost candidates. An applicant tracking system addresses this directly by bringing structure, visibility, and consistency to recruitment from the start.
What is an applicant tracking system?
An applicant tracking system is a centralised platform used to manage the entire recruitment process, from job posting through to hiring. It brings all applications, candidate information, and hiring activity into one place, making it easier for teams to organise, review, and progress candidates efficiently.
In practice, applicant tracking system software replaces manual methods. Instead of information being spread across multiple tools, an ATS system keeps everything structured within a single recruitment workflow, which reduces the risk of lost applications or inconsistent tracking.
This type of recruitment software is used by a wide range of organisations. In-house HR teams rely on it to manage internal hiring processes, and recruitment agencies use it to handle high volumes of candidates across multiple clients. It’s commonly adopted by growing businesses that need more structure and control as hiring demand increases.
How does an applicant tracking system work?
An applicant tracking system works by centralising and managing each stage of the recruitment process, from the moment a job is posted through to the final hiring decision. It replaces fragmented manual steps with a structured workflow that improves visibility, consistency, and speed across the board.
Job posting and distribution
ATS platforms allow recruiters to create a job posting once and distribute it across multiple job boards, career sites, and recruitment channels simultaneously. This removes the need to post roles individually across platforms. Many systems also include branded careers pages and standardised application forms, ensuring candidates have a consistent experience regardless of where they apply.
Application collection and organisation
Once a job is live, applications are automatically collected and stored within the system. CVs and candidate details are used to build structured profiles, which can make it easier to compare applicants. Instead of managing applications across inboxes or spreadsheets, everything is consolidated into a single dashboard to give HR teams a clear, organised view of the full candidate pool.
CV screening and candidate shortlisting
Applicant tracking systems help filter and rank candidates based on predefined criteria such as skills, qualifications, and experience. Keyword matching and scoring tools can surface the most relevant applicants more quickly, especially when dealing with high volumes. This is designed to support human decision-making rather than replace it, and to help recruiters focus their attention on the strongest candidates without removing judgement from the process.
Moving candidates through the pipeline
Candidates are managed through a structured hiring pipeline, typically progressing through stages such as applied, reviewed, interviewed, and offered. Recruiters can move candidates between stages, add notes, and apply tags to track status and context. Many systems also trigger automated notifications to keep candidates informed as they progress through each stage.
Interview scheduling and communication
ATS platforms often include scheduling tools or calendar integrations that simplify interview coordination between candidates and hiring teams. This reduces the back-and-forth typically involved in arranging meetings. Consistent communication features also help to ensure candidates receive timely updates throughout the process, improving overall experience and reducing the likelihood of drop-off.
Reporting and hiring analytics
Modern applicant tracking systems capture a wide range of recruitment data, including time-to-hire, source of hire, drop-off rates, and pipeline conversion metrics. This allows teams to understand where candidates are coming from and where improvements can be made. Increasingly, this data serves as the foundation for more advanced recruitment analytics, and helps organisations move beyond basic tracking and towards more strategic, evidence-based hiring.
What are the key benefits of using an ATS?
An applicant tracking system helps streamline recruitment by removing manual inefficiencies and improving control across the hiring process. One of the most immediate benefits is the time saved on repetitive administrative tasks, such as sorting CVs, updating spreadsheets, and chasing feedback, so HR teams can focus more on candidate quality and decision-making.
It also reduces the risk of losing strong candidates, especially when applications arrive through multiple channels. With everything stored in one place, applicants are far less likely to be overlooked or forgotten.
Visibility is another significant advantage. An ATS gives the full hiring team a clear view of where each candidate stands, making collaboration easier and reducing confusion over application status. It also supports more consistent screening by applying standardised criteria across all applicants, helping to reduce bias and improve the quality and fairness of hiring decisions.
Over time, the system builds a structured data trail that can be used for reporting and analysis, helping teams understand what is working in their recruitment process and plan future hiring more effectively. And because applicant tracking systems are built to scale, they can handle increased hiring volumes without the process becoming unmanageable.
Who should be using applicant tracking system software?
Applicant tracking system software isn’t limited to large enterprises. It can be relevant for any organisation that hires regularly and needs more structure and efficiency in how they manage the process.
In-house HR teams can benefit from ATS platforms when they’re managing multiple roles simultaneously, as it can help them to stay organised and maintain visibility across all active vacancies. Recruitment agencies also rely on these systems to handle high candidate volumes across different clients, and ensure workflows remain consistent and nothing gets missed.
Growing SMEs often adopt an ATS when moving away from informal hiring methods for the first time. It can introduce structure early rather than scaling processes that were never built to handle growth. For operations leaders and HR directors, the system provides greater oversight of recruitment activity, which becomes increasingly important as reporting, compliance, and performance tracking move up the agenda.
What to look for in an ATS system
The right applicant tracking system should have the right features but importantly, it needs to fit into your existing hiring process and support future growth. The most effective platforms are those that improve day-to-day recruitment without adding unnecessary complexity.
Ease of use matters across the whole team, not just HR. If hiring managers and other stakeholders find the system difficult to navigate, adoption will be inconsistent and the benefits limited. Integration with your existing tools is equally important; a strong ATS should connect with the job boards, CRMs, and calendars you already use, to keep workflows joined up and reduce the need for manual data transfer.
Reporting and analytics capability is worth careful examination. What separates stronger platforms is the quality of insight they provide on hiring performance, such as time-to-hire and source effectiveness.
Alongside this, consider scalability. The system should be able to grow with your organisation, handling greater volumes and more complex hiring structures without disruption. And before committing, assess the level of implementation support and ongoing service the provider offers, as this has a significant impact on how quickly the system delivers value.
ATS software and the bigger picture of recruitment analytics
An applicant tracking system is an excellent tool for organising and managing recruitment, but it has a defined scope. It can track what’s already in the pipeline, and it can organise applications, move candidates through stages, and record what happened.
However, what it does not do is influence the quality of candidates entering the pipeline in the first place, or give you strategic visibility into why some roles fill faster than others, which sourcing channels are performing, and where strong candidates are being lost before they even apply.
This is the gap that sits alongside the ATS, and it’s where recruitment performance is often won or lost. For HR teams and talent acquisition leaders looking to move from reactive hiring to a more strategic, evidence-based approach, building that capability around your ATS is the natural next step.
Getting started with an applicant tracking system
Before selecting a platform, it is worth mapping out your current hiring process in detail. Understanding where the inefficiencies sit will make it far easier to evaluate which system addresses your specific needs rather than choosing on features alone.
Consider your hiring volume, team size, and the tools you already have in place. Most ATS providers offer onboarding support, and implementation timelines vary depending on the complexity of your setup, but the transition from manual processes is typically straightforward for teams that have done the groundwork upfront.
It is also worth thinking beyond the ATS itself from the start. The system will manage your pipeline, but the quality of candidates entering it, and the insight you have across the full journey from application to hire, depends on what sits around it. An ATS is a strong foundation. The tools that integrate with it are what determine how well you build on it.
Building a more efficient hiring process
An applicant tracking system brings structure, consistency, and visibility to recruitment, to help teams move away from fragmented manual processes and towards more organised hiring. For most organisations, it becomes the operational backbone of recruitment.
But an ATS manages what is already in your pipeline. It doesn’t drive candidate quality, optimise how and where your roles are deployed, or give you the strategic visibility to understand what is really happening between application and hire.
TalentTrack from Automated Analytics integrates with any ATS to provide exactly that. From smart job deployment and candidate attraction through to full pipeline visibility, it works alongside your existing system to improve the quality and efficiency of every hire. Book a free demo today to find out more.
