Are you a developer looking to create the next Indeed or ZipRecruiter? Do you want to help job seekers discover the best opportunities all in one place? Building a job aggregator website can be a great way to provide value to job hunters while also creating a profitable online business.
The core of any successful job aggregator is the job listings themselves. You need a large database of postings from many different employers and job boards to be truly comprehensive and useful. That‘s where web scraping comes in as an essential tool for collecting and updating job listing data at scale.
In this in-depth guide, we‘ll walk through everything you need to know to build a job aggregator powered by web scraping. From the best tools and techniques for scraping job postings to designing an intuitive search experience, you‘ll learn expert tips every step of the way. Let‘s get started!
What is a Job Aggregator?
First, let‘s define what exactly a job aggregator is and how it benefits job seekers. A job aggregator is a website or app that curates job listings from many different sources across the web into a single searchable database. Rather than visiting dozens of different job boards and company sites, job hunters can search and apply to openings all in one place.
Some of the most popular job aggregators include:
- Indeed
- LinkedIn Jobs
- Glassdoor
- ZipRecruiter
- Jooble
- Monster
- CareerBuilder
- Adzuna
These sites index millions of job postings and attract tens of millions of job seekers each month. Needless to say, competition in this space is fierce. To be successful, a new job aggregator needs to differentiate itself with unique features, specialization in a particular niche, or simply exceptional user experience and data quality.
The Role of Web Scraping in Building a Job Aggregator
To build a comprehensive database of job listings, you need an efficient way to collect postings from many different sources. Manually copying and pasting listings simply isn‘t feasible beyond a small scale. That‘s where web scraping comes in.
Web scraping refers to techniques for automatically extracting data from websites using bots. A scraping tool will scan the underlying HTML code of web pages to locate and pull out specific data fields. For a job aggregator, the key data to scrape includes:
- Job title
- Company name
- Location
- Salary (if listed)
- Job description
- Application URL
- Posting date
With web scraping, you can collect thousands of job listings from dozens of sources in the time it would take to manually grab a handful. You can also schedule scrapers to run automatically on a regular basis to keep your database constantly up to date with the latest openings.
Some job sites attempt to block web scraping to protect their data. However, an experienced web scraping developer can get around most of these restrictions using techniques like rotating IP addresses, adjusting request frequency, and more. Later on, we‘ll share some top web scraping tools and best practices to maximize your success rate.
Step-by-Step Process to Scrape Job Postings
Now let‘s walk through the actual process of building a web scraper to extract job listings from the web. Don‘t worry if you‘re not an expert coder – we‘ll focus on no-code tools here that make it possible for anyone to scrape job postings.
For this example, we‘ll use ParseHub – a powerful web scraping tool with a visual point-and-click interface. Here are the key steps:
1. Create a new ParseHub project.
Open the ParseHub app and click on "New Project". Enter the URL of the first job board or company site you want to scrape.
2. Select the data you want to scrape.
ParseHub will load the target web page. Click on the first item you want to extract, such as the job title. ParseHub will highlight all matching items on the page. If it doesn‘t select exactly what you want, you can refine the selection using the options on the left.
3. Identify the data pattern.
Now train ParseHub to recognize the pattern for each listing on the page. Click on another job title and ParseHub will attempt to find others that match that pattern. Repeat until all job titles are selected.
4. Add additional data fields.
Click on other data points you want to scrape for each listing like company name, location, salary, etc. ParseHub will add columns for each field on the left.
5. Paginate through results.
If the site you‘re scraping has multiple pages of results, show ParseHub how to navigate to the next page by clicking the "Next" button. It will automatically paginate through all results for you.
6. Test, launch and export.
Click "Get Data" to run a test scrape and review the results. If everything looks good, launch a full scrape. Once finished, you can export your data to JSON, CSV, or directly to Google Sheets.
7. Schedule ongoing scrapes.
To keep your data fresh, use ParseHub‘s built-in scheduler to automatically run your scraper as often as you want – daily, weekly, etc. ParseHub can even email you when new scrapes are finished.
That‘s it! Repeat this process for other job boards and company career pages you want to scrape, adjusting the selectors as needed for each site. As long as the site doesn‘t block web scraping, ParseHub can gather job postings from just about any page.
Other Web Scraping Tools to Consider
While ParseHub is a great choice for non-technical users, there are other web scraping tools worth considering depending on your specific needs:
- Octoparse – Another no-code web scraping tool with built-in data cleaning and IP rotation.
- Scrapy – An open source web scraping framework for Python coders.
- BeautifulSoup – A popular Python library for parsing HTML and XML.
- Puppeteer – A Node.js library for headless browser web scraping.
Depending on your budget, scraping needs, and technical expertise, one of these other tools might be a better fit. As your site grows, you may want to switch to an in-house scraping solution for more customization and control.
Designing Your Job Aggregator Website
With your job listing data in hand, the next step is to build your actual job aggregator website. The key is to offer an intuitive search experience that makes it easy for job seekers to find relevant openings.
At minimum, your site should include:
- A prominent search bar that allows searching by keyword, job title, company, and/or location
- Filters to refine results by salary, job type (full-time, part-time, contract etc.), posting date, experience level, etc.
- Infinite scroll or pagination to view more results
- Ability to save/bookmark jobs and set up job alerts
- Links to apply to jobs on the original posting site
In addition to nailing the basics, think about what unique features or design touches you can add to stand out from other job aggregators. Ideas include:
- Salary estimates for jobs that don‘t include salary info
- Company profiles with reviews, ratings, photos, etc.
- Skill and trend data (e.g. fastest growing job titles, most in-demand skills)
- Resume upload and AI-powered job matching
- Notifications about jobs at companies you follow
The possibilities are endless, but don‘t get caught up in adding tons of bells and whistles right away. Stick to the core functionality first, then iterate and improve over time based on user feedback and metrics.
Strategies for Promoting Your Job Aggregator
To attract job seekers to your aggregator, you‘ll need a multifaceted approach to marketing. Some key strategies include:
- SEO – Optimize your site to rank organically in search results for job-related queries.
- PPC ads – Buy ads on search engines and social media to get in front of job seekers.
- Content marketing – Publish blog posts, videos, infographics etc. with job search advice to attract inbound traffic.
- Social media – Share job listings and advice on social media to build brand awareness.
- PR – Pitch stories to media outlets about your company and job data insights.
- Partnerships – Team up with colleges, professional associations, and other organizations to promote your site.
Over time, track which channels drive the most traffic and double down on what works best. Building a profitable job aggregator takes patience and persistence.
Monetizing a Job Aggregator Website
There are a few different ways to generate revenue from a job aggregator:
- Charge employers to post jobs
- Offer premium placements for jobs/employers
- Affiliate commissions for clicks on job postings
- Sell access to your resume database
- Charge for access to special features or data insights
Initially, it‘s best to focus on growing your audience before worrying too much about monetization. Once you have a steady stream of traffic, you can test out different revenue strategies to see what sticks.
Staying Ahead of the Competition
Finally, to succeed in the ultra-competitive job aggregator space, it‘s essential to keep innovating. Regularly assess the changing needs of job seekers and employers and look for ways to address them. Keep an eye on what competitors are doing as well.
Some ways to stay ahead of the curve:
- Gather feedback from users and iterate quickly
- Leverage AI/machine learning for smarter matching
- Expand to cover more niches and geographies
- Localize the experience for different markets
- Add new tools like a resume builder or salary calculator
The job search space will always be evolving. By staying agile and continuing to deliver more value through your job aggregator, you can build a sustainable business in this exciting market.