Hard-to-fill roles cost more, take longer, and stall the work that depends on them. Most employers respond by reposting the job and hoping for a better month. The ones who fill these roles consistently use a different playbook: a focused employer brand, a frictionless referral program, candid job descriptions, AI in the parts of hiring it actually helps, and a wider definition of where talent comes from. This guide walks through five strategies that work.
Every HR leader has a list of roles that take too long to fill. These are the positions where you post the job, brace for a long search, and watch the workload pile up around the empty seat. Korn Ferry projects that the global talent gap could cost employers $8.5 trillion in unrealized annual revenues by 2030, and the burden falls hardest on roles you cannot replace overnight.
The good news is that current conditions favor the employers who put real strategy behind these roles. Most don't. They rely on the same job boards and the same job descriptions everyone else uses, then compete on salary alone. If your approach is more deliberate than that, you have a structural advantage in the search for specialized talent.
Why are some roles so hard to fill?
Hard-to-fill is not a fixed category of jobs. It is any role where demand for the skills outpaces the available supply, and the longer the gap stays open, the more it costs you. Vacancies drag on operations, push your existing team into work they didn't sign up for, and chip away at the strategic plans those hires were meant to support. The data tells the story:
- ManpowerGroup's 2025 Talent Shortage Survey found that 71% of US employers are struggling to find skilled talent, more than double the rate of a decade ago.
- SHRM's 2025 Talent Acquisition Benchmarking Report puts average time-to-fill at around 44 days across all US roles, with specialized and senior positions routinely running 90 to 180 days or more.
- SHRM also reports that the average cost per hire is $5,475 for non-executive roles and $35,879 for executives, up 21% since 2022.
- The shortage spans every industry. (ISC)² estimates that 4.8 million cybersecurity roles are unfilled globally, while the Manufacturing Institute and Deloitte project the US manufacturing shortfall will grow from 600,000 today to 3.8 million by 2033.
- Helios HR's 2026 Mid-Market AI Workforce Trend Report found that only 16% of mid-market employers have updated job descriptions to reflect AI-related skills, and 42% have no plans to do so.
The same conditions that make these roles hard to fill also create an opening. While most employers respond passively, the ones who build a deliberate approach can attract specialists who would otherwise stay put. The five strategies below cover what consistently works.
How to recruit for hard-to-fill roles
The strategies below are the moves that consistently work for HR leaders filling specialized roles. Some are about how you show up to candidates, some are about how you run the process, and some are about widening your definition of who counts as a candidate. You can adopt them in any order, but each one compounds with the others.
1. Build a careers hub for each specialist function
Most mid-market companies run a single careers page for every role. A senior software developer and an entry-level marketer land on the same page, see the same generic value proposition, and leave with the same impression. For a generalist hire that is fine. For a specialist, it is a missed opportunity to say something they actually want to hear.
The opportunity is to build a dedicated information hub for each priority talent group. Industry calls this a talent brand. It can start as a single web page and grow as the function does, which makes it cost-effective relative to most other recruiting investments. The point is to speak to candidates in their own terms, on their own questions, before they ever talk to a recruiter.
What a dedicated hub for a specialist function should include:
- A clear statement of the work this group does at your company, written in their language
- Short profiles of two or three current team members, including what they work on and how they got there
- Specifics on tools, methods, projects, or clients that signal the work is real
- Compensation philosophy and growth paths for the function, even at a high level
- A direct route to apply or speak with someone, separate from the general careers form
Start with the role type causing you the most pain, and keep the first version simple. A single dedicated page is enough to test whether the targeted message moves the needle. If it does, expand from there: add content from the team, link to conference talks, build passive sourcing operations around the same hub. The work compounds.
2. Make your referral program effortless
Most companies have a referral program. Many sit on the shelf because referring is too much work. Your team knows good people, but they don't know what is open, who to send the resume to, or whether anything will happen if they do. Friction kills participation, and friction is what most programs quietly produce.
The fix is to design for the referrer's two-minute window:
- Maintain a live, easy-to-find list of priority open roles in a Slack channel, an internal portal, or a regular email.
- Make submission a single action. A form, a Slack command, or a forwarded email should be enough.
- Close the loop. Tell referrers when the candidate was contacted, when they were rejected or hired, and what happened next. Silence trains people not to bother again.
- Tier the bonus. Pay part on hire and part at the six-month mark, so the program rewards retention as well as activity.
- Recognize the referrer publicly. Naming the person who brought in a new hire builds social proof inside the company.
Done well, a referral program does what cold sourcing cannot. It reaches qualified candidates through a trusted introduction, which is often the only door open to a passive specialist.
3. Write job descriptions that tell candidates what they need to know
The job description is the first conversation you have with a candidate, and most of the field gets it wrong. Postings hide salary, gloss over what the work actually involves, and stack requirements that filter out the people you want. Candidates notice. The Monster 2025 Job Search Deal-Breakers Report found that 60% of job seekers will not apply for a posting without a salary range, and Indeed reports that 31% of job seekers cite a lack of pay transparency as the biggest challenge in finding quality roles.
Most postings still hide things, so candor stands out. A job description that earns trust includes:
- A real salary range with actual numbers
- The location and schedule, including whether the role is in office, hybrid, or remote
- A description of what the person will do in their first ninety days, written in plain language
- A short, honest list of must-haves, with nice-to-haves separated out or removed
- A line on why the role exists now, so the candidate understands the business context
When your posting reads like a real conversation with a serious candidate, the rest of the funnel improves. Better-fit applicants apply, weaker fits self-select out, and your team spends less time on screens that go nowhere.
4. Make your company a home for forward-looking candidates
Candidates increasingly evaluate employers on whether the work will let them keep building their AI capability. Helios HR's 2026 Mid-Market AI Workforce Trend Report found that 54% of respondents identify as AI Enthusiasts or AI Optimists, with another 41% AI Neutral and only 5% AI Skeptics. The interest is broad, and the people who have it are looking for places where they can act on it.
Most employers haven't yet built that environment. Helios's report found that only 6% of mid-market organizations have a fully integrated and widely communicated AI strategy, and 47% of HR teams have limited or no engagement with AI. For candidates with AI ambitions, that scarcity is a sorting mechanism. They avoid companies that look like AI deserts and gravitate toward the ones that look serious. Closing this gap is one of the clearer ways to compete for forward-thinking talent.
What candidates actually look for when they assess your AI environment:
- A clearly stated AI strategy they can see in your external communications
- Visible internal tools and access, with policies that enable rather than block
- A real training pathway that goes beyond self-directed learning
- Teams and functions that are clearly using AI in their day-to-day work
- Job descriptions that name AI skills, signalling that capability matters
Done well, this becomes a real differentiator. Most mid-market employers will not invest seriously in AI capability for years, which means the ones that do stand out in a market where every candidate sees mostly the same offer. The candidates who notice tend to be curious, adaptable, and comfortable with change. Those are the traits that help the rest of your strategy land, well beyond the role you hired them for.
5. Look beyond traditional talent pools
The fastest way to fill a hard-to-fill role is sometimes to stop looking for the obvious candidate. The strongest move here is upskilling current staff. Your existing team already understands the business, the customers, and the work. Closing a skill gap from the inside is faster and cheaper than running an external search, and it tends to retain the people you invest in.
AI is changing what upskilling can deliver. Tools that summarize complex documents, generate code from plain language, and automate repetitive analysis are making non-IT staff confident with technical work that used to require a specialist. Helios HR's 2026 Mid-Market AI Workforce Trend Report found that 44% of mid-market employers have no formal AI training program, while 80% of employees in organizations with structured training use AI tools daily. A real training program is one of the highest-leverage moves available to a mid-market HR team.
Beyond your own people, widen the lens to:
- Adjacent industries with transferable skills
- Returners coming back from career breaks
- Internal candidates one stretch assignment short of the role
- Niche communities like alumni networks, professional associations, and conference speaker lists
The talent is rarely missing. It is often somewhere you have not looked yet.
Need help with recruitment?
Talent acquisition is a complex process, especially for hard-to-fill positions. It begins by working with hiring managers to craft job descriptions, and it doesn't end until your ideal candidates have been through the onboarding process. Things are easier when you have human resources experts on your team. Helios HR can help with:
- Recruitment process outsourcing for ongoing or high-volume hiring needs
- Direct hire executive search for senior and specialized roles
- Talent acquisition consulting to build your internal recruiting capability
- AI consulting to integrate AI into your hiring process responsibly
Book a call with Helios HR and let's talk about how you can attract, engage and retain top talent!
FAQ
What makes a position hard to fill?
A role becomes hard to fill when demand for the skills outstrips supply. This happens with specialized expertise, niche credentials, scarce experience combinations, and roles where the talent pool is regionally constrained or aging out faster than new entrants are arriving.
How long does it typically take to fill a specialized role?
Average time-to-fill across all US roles is around 44 days, according to SHRM's 2025 benchmarking report. Specialized and senior positions routinely take 90 to 180 days or more, particularly in healthcare, financial services, engineering, and any field where credentialing or security clearance adds time.
Why does pay transparency matter in job postings?
Most candidates filter postings by pay information first. The Monster 2025 Job Search Deal-Breakers Report found that 60% of job seekers will not apply for a posting without a salary range. Listing real numbers expands your applicant pool and signals trust before the first conversation.
How can offering AI opportunities help attract candidates?
Helios HR's 2026 AI Workforce Trend Report found that 54% of respondents are AI Enthusiasts or Optimists, while only 6% of organizations have a fully integrated AI strategy. Companies that build a clear AI environment stand out to candidates eager to grow those skills.
What is a talent brand and how does it differ from an employer brand?
An employer brand is your overall company-as-workplace identity. A talent brand focuses on a specific group of specialists, surfacing the people doing the work and the channels they trust. Talent brands convert specialized candidates better than generic corporate messaging.
How does upskilling help with hard-to-fill roles?
Upskilling closes a skill gap from inside your organization, faster and cheaper than an external search. AI tools are widening what current staff can do, especially for technical work that used to require a specialist. Investing in training also tends to improve retention.
Related resources
- ManpowerGroup: 2025 Global Talent Shortage Survey
- SHRM: The State of Recruiting 2025
- Helios HR: 2026 Mid-Market AI Workforce Trend Report
- Harvard Business Review: 40 Ideas to Shake Up Your Hiring Process