Applicant tracking systems: Everything HR teams should know
Looking for a faster, more organized way to hire? Learn how an applicant tracking system can simplify your recruitment process, save time, and help you find the right candidates more efficiently.
If you’ve ever posted a job opening and ended up buried in résumés, juggling candidate emails, and struggling to keep the hiring process organized, you’re not alone.
Recruitment can be one of the most rewarding—but also one of the most time-consuming—responsibilities in HR.
That’s where an applicant tracking system (ATS) can make a real difference.
This guide explains ATS, how it works, and the key benefits it offers HR teams. It also covers essential features to look for, how to choose the right system for your business, and the future trends shaping recruitment technology.
Here’s what we’ll cover:
What is an applicant tracking system (ATS)?
An applicant tracking system (ATS) is software designed to help your business manage the recruitment process from start to finish.
Think of it as a central hub where all your candidate information, communications, and hiring tasks come together in one place.
Over 95% of Fortune 500 companies use ATS software to streamline hiring—and it’s no longer just for large enterprises.
Affordable, scalable options now make it accessible to small and mid-sized businesses, too.
With an ATS, you can:
- Post jobs to multiple boards at the same time.
- Collect and organize candidate applications.
- Automate repetitive hiring tasks.
- Communicate with candidates quickly and consistently.
The main goal is to streamline recruitment, centralize candidate data, and save time through HR automation.
How does an ATS work?
Think of an ATS as your digital hiring assistant. Once a job posting is set up, it collects applications, filters candidates, and highlights the best matches, helping you quickly decide who should move forward.
The process typically follows five main steps:
- Job posting
- Resume scanning and parsing
- Automated filtering
- Candidate ranking and matching
- Candidate selection
Before diving into each step, here’s a quick comparison of manual vs ATS-driven recruitment:
| Recruitment Task | Manual process | ATS-Automated Process |
| Job posting | Write and post each job ad individually in different job boards and channels | Create and automate job postings through various channels simultaneously. |
| Resume screening | Spend hours reviewing each application manually | Automatically filter and rank candidates by qualifications |
| Candidate Scoring and Ranking | Evaluate applications manually against criteria | Instantly score and prioritize candidates based on set requirements |
| Interview scheduling | Exchange multiple emails to find suitable times | Allow candidates to self-schedule via calendar integration |
| Final candidate selection | Manually compare candidates’ interview notes, feedback from hiring managers, etc. | Centralize all candidate data for easy comparison and decision-making. |
1. Job posting
Integrating an ATS allows you to publish job openings across multiple boards and platforms at once, saving time and making sure your post gets wider visibility.
2. Resume scanning and parsing
An ATS scans incoming resumes and extracts details such as name, contact information, work history, skills, and education.
Using parsing technology, it converts unstructured resume text into structured, searchable data—making it far easier to identify candidates who meet your job requirements.
3. Candidate scoring and ranking
Recruiters can set predefined screening criteria such as required skills, certifications, years of experience, or location preferences.
The ATS then scores and ranks candidates automatically, filtering out those who don’t meet the requirements so you can focus on the most qualified applicants.
Combined with built-in candidate communication features, this makes sure top candidates are identified quickly and kept engaged throughout the process.
4. Automated notifications
Most ATS platforms also keep candidates engaged by sending automated updates at each stage of the hiring process—such as application confirmations, interview invites, or status updates—helping you maintain clear and timely communication without adding to your workload.
5. Candidate selection
Finally, the ATS collaborative platform is used to shortlist and select the best-fit candidates, streamlining the hiring decision, ensuring that all stakeholders are on the same page during the decision-making process.
Why use an applicant tracking system?
Hiring is more competitive than ever. The average corporate job posting now attracts around 150 applications, and manually reviewing each can take valuable work hours.
A candidate tracking system helps tackle the biggest hiring challenges, including:
- Sorting through large applicant pools without missing qualified candidates.
- Keeping candidate data organized in one place for easy access.
- Ensuring consistent hiring practices across your team.
Key benefits for HR recruiters include:
- Save valuable time with automation: instead of spending hours manually screening résumés, an ATS scans and ranks applications automatically. For example, you can reduce days of admin work into a few clicks, freeing up time to focus on interviews and relationship-building. From the candidate’s perspective, faster responses mean less waiting and uncertainty.
- Improve candidate quality through smarter filtering: by setting specific criteria, you can make sure only relevant applicants move forward.
- Maintain consistency with standardized hiring workflows: standardized hiring stages help you follow the same process, reducing unconscious bias and ensuring a fairer experience. For candidates, this creates a more predictable and transparent hiring journey—no matter who on the HR team is managing their application.
- Strengthen compliance and reduce risk: An ATS automatically stores documentation, tracks diversity metrics, and maintains audit trails. This supports compliance with laws and builds trust with candidates who increasingly value transparency and fairness in recruitment.
- Enhance the candidate experience with clear communication: built-in candidate communication tools—like automated application confirmations, interview invites, and status updates—ensure applicants are never left in the dark. In today’s competitive job market, a positive candidate experience can significantly impact your employer brand.
- Make data-driven decisions: you can gain access to real-time analytics such as time-to-hire, source effectiveness, and conversion rates. For instance, if data shows that a particular job board consistently delivers stronger hires, recruiters can reallocate budgets accordingly.
A recent report from the Times found that corporate job postings receive an average of 250 applications.
Sorting through that many résumés can be overwhelming and time-consuming, which is why using an ATS is such a valuable advantage for your team.
Key features to look for in an ATS
The best ATS platforms offer features that save you time, keep candidates engaged, and make your hiring process more efficient from start to finish.
Here are the key features HR recruiters should look for:
1. Integration with existing HR tools
Your ATS should work seamlessly with the tools you already use, including job boards, HRIS systems, background check providers, calendar tools, and email platforms.
Strong integrations reduce manual data entry, improve accuracy, and prevent information silos.
Applicant tracking systems are often offered in two ways: either as standalone solution or as part of a broader integrated HR suite, where recruiting software connects directly with payroll, onboarding, and performance management.
This integration creates a smoother workflow, ensuring that once a candidate is hired, their data flows automatically into the rest of your HR systems without duplication or delays.
2. Automated communication
Keep candidates informed without adding to your workload. Look for features that automatically send:
- Application received confirmations.
- Status updates as candidates progress.
- Interview invites with calendar sync.
- Timely and respectful rejection notices.
- Offer letters for digital signing.
Personalized automation ensures candidates stay engaged while still feeling valued.
3. Compliance and reporting
Compliance is essential in recruitment. The right ATS should:
- Track diversity metrics for EEO/OFCCP.
- Securely store candidate data.
- Manage permissions and consent.
- Maintain audit trails for hiring decisions.
These features help protect your organization while supporting fair hiring practices.
4. Analytics and insights
An ATS with strong analytics gives you the data you need to improve hiring decisions. Useful metrics include:
- Time-to-hire.
- Source effectiveness (best-performing job boards).
- Conversion rates through each hiring stage.
- Cost-per-hire.
- Recruiter productivity.
5. Scalability and customization
Your recruitment needs will evolve, so choose an ATS that can grow with you. Look for options that let you:
- Adjust workflows for different roles.
- Control access with permission levels.
- Add custom fields and branding.
- Scale features as your company expands.
How to choose the right ATS
Choosing the right applicant tracking system involves matching its capabilities with your organization’s size, budget, and hiring needs. Here are the key factors to consider:
1. Assess organizational size and budget
Different ATS pricing models—per user, hire, or subscription—can significantly affect long-term costs. Choose one that aligns with your hiring volume and growth plans.
| Budget level | Typical features | Best for |
| Entry-level | Basic tracking, job posting | Small businesses, occasional hiring |
| Mid-range | Automation, integrations, reporting | Growing companies, regular hiring |
| Enterprise | Advanced analytics, customization, global capabilities | Large organizations, high-volume hiring |
2. Evaluate integrations
Audit your current HR tech stack to see where an ATS should connect. When speaking with vendors, ask:
- Which job boards does it integrate with?
- Does it connect with payroll and HRIS systems?
- Are API connections available for custom integrations?
Strong integrations prevent information silos and save valuable recruiter time.
3. Look for user-friendly design
An ATS should be easy to navigate for both recruiters and candidates. Look for:
- An intuitive recruiter dashboard.
- Mobile accessibility for on-the-go management.
- A simple, candidate-friendly application process.
Always request demos or trial periods to ensure the system is practical and efficient for your team.
4. Check support and training
Ongoing support is essential for smooth implementation and adoption. Consider:
- Setup and data migration assistance.
- Live, recorded, or self-paced training options.
- 24/7 customer support availability and multiple contact channels.
ATS vs other HR tools
An applicant tracking system is a key part of the HR tech stack, but serves a different purpose from other tools.
ATS vs. HRIS
A Human Resources Information System (HRIS) manages employee data after hire—covering payroll, benefits, and performance tracking.
An ATS handles the hiring process before onboarding. When integrated, candidate details flow directly from the ATS into the HRIS, saving time and reducing errors.
ATS vs. CRM
A recruitment CRM builds and nurtures relationships with potential candidates, often for future roles.
An ATS manages active applications for current openings. Many recruiters use the CRM for long-term engagement and the ATS for immediate hiring needs.
Future trends to watch
Recruitment technology is evolving quickly, and applicant tracking systems are becoming more advanced to meet the changing needs of HR recruiters.
Staying aware of these trends can help you choose an ATS that remains effective well into the future.
AI-driven recruitment
Artificial intelligence is making ATS platforms smarter and more efficient with:
- Smart screening beyond keyword matching.
- Chatbots for instant candidate interaction.
- Predictive analytics to forecast candidate success.
- Bias detection to support fair hiring.
- Interview analysis tools for deeper insights.
Mobile and remote hiring enhancements
As remote work and on-the-go recruitment grow, look for ATS features such as:
- Mobile-friendly application processes.
- Integrated video interviewing tools.
- Digital onboarding solutions.
- Cloud-based access for remote teams.
Data-driven analytics
Advanced analytics are giving recruiters greater visibility into hiring performance, including:
- Predictive hiring needs.
- Market intelligence for competitive recruiting.
- Quality-of-hire tracking.
- DEI performance metrics to support diversity in the workplace and achieve inclusion goals.
Frequently asked questions about ATS
1. How much does an applicant tracking system cost?
Pricing varies based on features, company size, and hiring volume.
Entry-level plans for small businesses are generally affordable, while enterprise-grade solutions with advanced analytics, customization, and global capabilities come at a higher price.
2. How does an ATS help with compliance?
Applicant tracking systems store documentation, track diversity metrics, manage candidate consent, and standardize hiring workflows to support compliance with labor laws and fair hiring practices.
3. How long does ATS implementation typically take?
Implementation can take anywhere from a few weeks to a couple of months, depending on company size, customization needs, and the complexity of data migration.
