Lightning Web Components (LWC) is Salesforce’s framework for building user interface components on the Salesforce platform with standard JavaScript, HTML and CSS. For recruiters, the term matters because it signals modern Salesforce front end work. To hire LWC developers well, screen for hands on component building, not keyword matches on a resume.
That last point is where most Salesforce hiring goes wrong. “LWC” now appears on a large share of Salesforce developer resumes, including from candidates who have only edited an existing component once. The acronym tells you a candidate has been near the framework. It does not tell you whether they can build, test and debug a component under real conditions. Glider AI’s Technical Assessments are built to close that gap.
What Lightning Web Components means in a job description
When a hiring manager writes “LWC experience required,” they usually mean a developer who can build custom interfaces inside Salesforce that read and write Salesforce data. In practice that covers a predictable set of skills:
- Writing components in modern JavaScript, HTML templates and scoped CSS
- Passing data between parent and child components with public properties and custom events
- Reading Salesforce records through the wire service, Lightning Data Service or Apex calls
- Handling the component lifecycle and rendering correctly when data changes
- Writing unit tests, most often with Jest
- Deploying through Salesforce DX and source control
Ask the hiring manager which of these the role actually needs. A developer maintaining a service console needs different depth than one building a customer facing Experience Cloud site.
Why resumes are a weak signal for LWC developer hiring
Salesforce talent is in steady demand, and certification badges are easy to list. Three patterns show up again and again when teams hire LWC developers from resumes alone:
- Aura experience relabeled as LWC. Aura was Salesforce’s earlier component model. The concepts overlap, but the syntax and patterns differ, and a strong Aura developer can still struggle with LWC.
- Configuration experience presented as development. Admins who build flows and page layouts are valuable, but that is not component development.
- Team credit claimed as individual work. “Built a custom LWC library” can mean the candidate wrote it or watched a colleague do it.
None of this is visible in a resume or a 20 minute phone screen. It becomes visible the moment a candidate is asked to build something.
How to assess Lightning Web Components skills
The most reliable way to hire LWC developers is to give candidates a short, realistic task and review the output. A practical screening sequence looks like this.
Start with a knowledge check that goes past definitions
Use a small number of questions that require applied judgment. Ask when a developer would use the wire service instead of an imperative Apex call, or how a child component should notify its parent of a change. Candidates who memorized definitions tend to stall here.
Add a hands on build task
Ask the candidate to build or fix a small component: a record list with a filter, a form that validates input, or a component that updates when a parent value changes. Review the code for structure, naming, error handling and test coverage. A coding simulation that mirrors your own environment gives the closest read on day one performance.
Confirm the work is the candidate’s own
Remote technical screening invites outside help. Proctoring that flags tab switching, pasted code and a second face on camera gives the recruiter factual evidence to review, not an automatic rejection. Our guide on how auto proctoring prevents cheating in online recruitment covers what to watch for.
Finish with a structured technical interview
Use the assessment results to focus the interview. If the candidate’s test showed weak event handling, ask them to walk through it live. This keeps senior engineers’ interview time on the candidates and topics that need it.
LWC vs Aura: what recruiters should know
| Factor | Lightning Web Components (LWC) | Aura Components |
|---|---|---|
| Introduced | 2019 | 2014 |
| Foundation | Modern web standards (JavaScript, HTML, CSS) | Salesforce specific framework |
| Typical use today | New component development | Maintaining older org customizations |
| Hiring signal | Current front end Salesforce skill | Legacy maintenance skill |
| What to test | Build and test a component from scratch | Read and migrate existing code |
Many Salesforce orgs still run both models side by side. If the role includes migrating Aura components to LWC, test both skills directly instead of assuming one implies the other.
LWC interview questions hiring teams can use
These questions work well after a candidate has completed a hands on task, because they ask the candidate to explain choices they just made:
- How did you pass data from the parent to the child component, and why that approach?
- When would you choose the wire service over an imperative Apex call?
- How does your component behave if the record it depends on is deleted?
- What did you test, and what would you add with more time?
- How would you make this component reusable across different record pages?
Strong answers reference specific tradeoffs. Weak answers repeat documentation language without tying it to the code.
How Glider AI helps you hire LWC developers
Glider AI, a Findem company, helps recruiters, hiring managers and staffing firms screen Salesforce developers on demonstrated skill. Technical Assessments combine applied knowledge questions with hands on coding tasks, and the Glider AI question bank covers more than 250 technologies across tech and functional roles. Teams can:
- Use ready made Salesforce and JavaScript tests or build role specific ones
- Run coding simulations that reflect real project work
- Turn on AI proctoring and identity checks for remote candidates
- Review scored results and recordings before deciding who moves to interview
The result is a shorter, better evidenced shortlist for every Salesforce developer requisition. For teams hiring across the broader enterprise software stack, our overview of enterprise software top jobs and skills is a useful companion.
Frequently asked questions
What skills should an LWC developer have?
An LWC developer should write modern JavaScript, HTML and CSS, build components that communicate through properties and events, read Salesforce data through the wire service or Apex, and write unit tests. For senior roles, add component design for reuse and deployment through Salesforce DX.
How do you test a Salesforce LWC developer before hiring?
Combine a short applied knowledge test with a hands on task, such as building a filtered record list or fixing a broken component. Review the code, the tests and how the candidate explains their choices. Proctoring helps confirm the work is their own.
Is LWC experience the same as Aura experience?
No. Both are Salesforce component models, but LWC is built on modern web standards and Aura is an older Salesforce specific framework. Developers can be strong in one and weaker in the other, so test the model the role actually uses.
How long should an LWC skills assessment take?
Most teams get a reliable read in 30 to 60 minutes. Keep the knowledge section short and spend most of the time on a realistic build task. Longer tests tend to lower completion rates without adding much signal.
Can non technical recruiters screen LWC developers?
Yes, when the assessment does the technical evaluation. Recruiters send the test, review scored results and flags, and pass strong candidates to an engineer for the final technical interview. That keeps engineering time focused on candidates who have already shown the skill.
What is the difference between a Salesforce admin and an LWC developer?
A Salesforce admin configures the platform with tools like flows, page layouts and permissions. An LWC developer writes code to build custom interface components. Many job descriptions blur the two, so confirm with the hiring manager which work the role needs.
Hire LWC developers on evidence, not acronyms
The acronym on a resume is a starting point. The code a candidate writes is the evidence. If your team is hiring Salesforce developers and wants a faster, more reliable way to see who can actually build with Lightning Web Components, explore Glider AI Technical Assessments and see how a hands on test changes the quality of your shortlist.