IT Recruiting is not a resume search. It’s a verification process. Hiring the wrong developer costs between 50% and 200% of their annual salary, according to SHRM and LinkedIn Talent Solutions research. This article gives you the exact process to avoid that outcome.
1. We need to define the technical profile before searching
Before posting a job opening, map three things: your team’s actual tech stack, the seniority level you need, and the specific responsibilities of the role. Without this, you’ll evaluate candidates against vague criteria.
IT Talent Selection starts with a role technical brief that includes required languages, frameworks, methodologies (Agile, Scrum, DevOps), and specific tools (Git, Docker, CI/CD). Share this brief with the hiring manager and the technical team before opening the process.
A common mistake: asking for “Python experience” without specifying whether you need scripting, data analysis, or backend development. That ambiguity fills your pipeline with candidates who don’t fit.
2. We should start filtering with an initial technical screening
The first barrier is a 15 to 20-minute technical questionnaire. The goal is not to eliminate candidates — it’s to save everyone’s time.
Include multiple-choice questions on stack concepts, a short logic problem, and a situational question (“How would you debug this error?”). Platforms like HackerRank, Codility, or TestGorilla offer validated tests by level and technology, with industry benchmarks to compare results.
Screening filters out 40–60% of applicants without investing senior engineering time. That frees up capacity for the stages that genuinely require human attention.
3. After that, let’s apply a structured technical test
The technical test is the core of the Technical Evaluation process. It must measure what the candidate will do day-to-day, not what they memorized.
Design exercises based on real project scenarios. For a backend developer, a valid exercise is building a REST endpoint with error handling and basic authentication. For a frontend developer, a component task with accessibility and responsiveness requirements. A reasonable time window ranges from 2 to 4 hours depending on complexity.
Evaluate: code readability, error handling, algorithmic efficiency, and minimal documentation. Don’t look for perfection. Look for decision-making criteria and verifiable reasoning.
4. Remember to run a live coding session
Live coding reveals what no asynchronous test can: how the candidate thinks under pressure and how they communicate their reasoning.
Use platforms like CoderPad or HackerRank for collaborative sessions. The technical interviewer presents a medium-difficulty problem, observes the solution process, and asks questions throughout. The key is not whether they solve the problem completely, but whether they structure their thinking well and ask for clarification when something is unclear.
In IT Headhunting, this stage separates the candidate who knows how to code from the one who knows how to work within a team. A developer who narrates their decisions out loud is more valuable than one who codes in silence.
5.We need to Review the portfolio and previous projects as well
The portfolio is evidence. An active GitHub profile, production projects, or contributions to open-source repositories say more than five years on a resume.
Evaluate: commit frequency, documentation quality, use of branches and pull requests, and whether the projects solve real problems. For senior roles, look for evidence of architecture decisions, documented technical rationale, and technical leadership in collaborative projects.
Don’t penalize candidates without a public portfolio if they have experience at companies with strict confidentiality policies. In that case, request anonymized code samples or a detailed description of a recent technical project.
6. Now it’s time to conduct an in-depth technical interview
This interview does not repeat what the test covered. It digs into the decisions the candidate made.
Ask why they chose one solution over another, how they handled a production failure, what they would do differently on a previous project. The answers reveal technical maturity, capacity for self-assessment, and engineering judgment. A candidate who only explains what they did — without explaining why — likely executes without understanding the full system.
At specialized IT Recruiting Companies, this stage is conducted by a senior engineer from the same stack. Not a generalist. The difference in evaluation quality is significant.
7. Last but not least, let’s verify some technical references
References are not a formality. They are a data source that most hiring processes waste.
Contact former technical supervisors or project leads directly. Questions must be specific: “How did the candidate handle technical debt?”, “Did they lead architecture decisions or wait for instructions?”, “Would you hire them again for a similar project?” That last question has a high disclosure rate.
In Integrated Recruiting Solutions, technical reference verification happens before the offer, not as a post-decision formality. That protects the final hiring decision.
This is a technical evaluation checklist that can help you
- [ ] Role technical brief defined and validated by the team
- [ ] Initial screening completed (HackerRank, Codility, or equivalent)
- [ ] Structured technical test sent and evaluated with a rubric
- [ ] Live coding session conducted with a team engineer
- [ ] Portfolio or code samples reviewed
- [ ] In-depth technical interview completed
- [ ] At least two technical references verified
Some questions we have been asked previously
Four to six stages is the standard range for IT roles. Longer processes increase candidate drop-off. According to LinkedIn, 60% of candidates abandon processes that exceed four weeks in length.
HackerRank, Codility, TestGorilla, and CoderPad are the most widely used at a professional level. Each offers validated exercise libraries by technology and seniority level, with comparative market benchmarks.
No. Verbal interviews carry a high presentation bias. An articulate candidate can outperform a technically superior one when there is no objective assessment. Combining a written test with a live coding session reduces that bias significantly.
Request a detailed technical description of a recent project, including architecture decisions, technologies used, and problems solved. Whenever possible, obtain an anonymized code sample subject to a confidentiality agreement.
When your internal process exceeds six weeks without results, when the volume of technical openings is high, or when you need senior or specialized profiles that your internal team cannot evaluate with sufficient depth.
Does your team need developers who actually deliver results?
We evaluate technical candidates using the process you just read. No generic filters. No profiles that don’t fit. Contact our IT Recruiting team and schedule a free consultation to define the exact profile your organization needs.
Evaluating technical skills with rigor does not guarantee the perfect developer. It guarantees your hiring decision has evidence behind it. That is what separates professional IT Recruiting from a gamble.