Engineer hiring at a tech company starts with the process, not the test
Many tech companies design engineer selection by copying a large company's flow: five or six stages, algorithm problems, then interviews with many people. For a small team, a flow like that burns engineer time and makes strong candidates drop out before they finish. A good process is designed from a simple question: what must be proven at each stage, and who is best placed to prove it.
This article is part of a broader tech company recruitment guide. It focuses on process design at the company level, not on one specific role. You will see how to divide the stages between HR and the tech lead, how to choose between a take-home test and live coding, and how to keep scoring consistent across candidates and across interviewers.
Challenges
Too many stages, or stages that overlap
It is common for three different stages to ask the same thing: motivation, experience, then experience again. Candidates tire of repeating their story and engineers waste working hours. Each stage should have one purpose that is not checked again at another stage.
A take-home test that takes too much of the candidate's time
An assignment that needs a full weekend makes candidates who already have jobs decline or rush it. An assignment that is too light shows nothing. The scope and time limit need to be set and communicated from the start.
Inconsistent scoring between interviewing engineers
Two engineers interviewing different candidates tend to emphasize different things, so scores cannot be compared. Without a shared rubric and written notes, the final decision falls to the personal impression of the most vocal interviewer.
From a pile of CVs to a shortlist
Illustrated flow: CVs come in, are screened against your criteria, and only the most relevant candidates move on to the next stage.
The old way
- Selection stages are set ad hoc by whichever engineer happens to be assigned, and differ for every opening.
- Technical questions are pulled from the internet or from the interviewer's own experience, with no written scoring rubric.
- Results from each stage are passed on through chat and memory, so HR struggles to compare candidates.
With TalentRank
- Write a rubric for each role together with the tech lead in Custom Hiring Criteria: what must be proven in the CV, the initial interview, and the technical stage.
- Use CV Screening AI to rank CVs against that rubric, so the tech lead reviews only the top candidates.
- Run WhatsApp Prescreening and AI Interview for availability, motivation, and consistent initial questions.
- Hand the summaries, answers, and scores to the tech lead for the technical stage. HR and the tech lead decide together.
CV screening criteria for engineer recruitment at tech companies
At the company level, CV criteria should answer one question: is this candidate worth our engineers' time? Here are five criteria HR and the tech lead can agree on before the job is opened.
| Criterion | Priority | Good signs in the CV | Worth asking about |
|---|---|---|---|
| Level match with the role's responsibilities | High | The work description shows scope equal to the level being hired: delivering complete features for mid-level, leading design or mentoring colleagues for senior. | A senior title with no evidence of leading technical decisions, or years of experience that amount to closing tickets. |
| Traceable project evidence | High | Code links, a product you can try, or project descriptions that state the candidate's own role, technical constraints, and the reasons for choosing a particular approach. | Projects mentioned only by name and technology, with no explanation of what the candidate did or what the outcome was. |
| Stack fit with near-term needs | Medium | Experience on the technology the team uses now or can easily transfer to, for example a different language with the same paradigm, backed by evidence of having switched stacks before. | Experience entirely in a very different ecosystem with no history of learning a new stack, while the team needs fast productivity. |
| Plausible reasons for changing jobs | Medium | A pattern of moves that can be explained: a project ended, the company changed direction, or the candidate sought bigger responsibility. | Very frequent moves with no explanation, or always leaving just before a major launch. |
| Quality of CV and portfolio writing | Medium | Writing that is concise, specific, and understandable to non-technical readers. An engineer who writes clearly usually writes clear documentation and commit messages too. | A CV full of jargon without context, or descriptions that look copied from a job post or from someone else's CV. |
Level match with the role's responsibilities
HighGood signs in the CV: The work description shows scope equal to the level being hired: delivering complete features for mid-level, leading design or mentoring colleagues for senior.
Worth asking about: A senior title with no evidence of leading technical decisions, or years of experience that amount to closing tickets.
Traceable project evidence
HighGood signs in the CV: Code links, a product you can try, or project descriptions that state the candidate's own role, technical constraints, and the reasons for choosing a particular approach.
Worth asking about: Projects mentioned only by name and technology, with no explanation of what the candidate did or what the outcome was.
Stack fit with near-term needs
MediumGood signs in the CV: Experience on the technology the team uses now or can easily transfer to, for example a different language with the same paradigm, backed by evidence of having switched stacks before.
Worth asking about: Experience entirely in a very different ecosystem with no history of learning a new stack, while the team needs fast productivity.
Plausible reasons for changing jobs
MediumGood signs in the CV: A pattern of moves that can be explained: a project ended, the company changed direction, or the candidate sought bigger responsibility.
Worth asking about: Very frequent moves with no explanation, or always leaving just before a major launch.
Quality of CV and portfolio writing
MediumGood signs in the CV: Writing that is concise, specific, and understandable to non-technical readers. An engineer who writes clearly usually writes clear documentation and commit messages too.
Worth asking about: A CV full of jargon without context, or descriptions that look copied from a job post or from someone else's CV.
Interview questions for each engineer selection stage
Each stage needs its own questions. The initial stage, run by HR or AI Interview, explores context and readiness, while the technical stage, run by the tech lead, explores depth. Here is an example of how to split them.
Initial interview by HR or AI Interview
1.What project are you working on, or did you last work on, and what is your role in it?
A good answer: Gives the tech lead a basis for deeper questions, and filters out candidates who cannot explain their own work.
2.What do you expect from the engineering team at your next workplace?
A good answer: Reveals expectations about how the team works, which can be checked against reality at the company before a long process begins.
3.If you were asked to do a take-home test, how much time could you realistically set aside in a week?
A good answer: Prevents candidates from dropping out midway, and helps the company size the test to real availability.
Technical stage by the tech lead
4.Walk me through the design of a feature you built, and the alternatives you considered.
A good answer: Assesses the ability to make design decisions and explain trade-offs, which is hard to fake.
5.In your take-home test, which part would you improve if you had more time?
A good answer: A candidate who is aware of the quality of their own code can usually point to real weaknesses, which opens a more honest discussion than a new problem would.
6.How would you trace a page that suddenly becomes slow in production?
A good answer: Shows systematic thinking when a problem has no single answer, rather than recall of one technique.
Common mistakes
- 01
Using take-home and live coding without a reason
A take-home test suits assessing quality of work without time pressure. Live coding suits seeing how someone thinks and communicates. Using both for the same purpose doubles the candidate's burden without adding information for the company.
- 02
Involving the tech lead from the first CV screen
The tech lead's time is the most expensive resource in this process. Agree the criteria up front, then hand CV review and the initial interview to HR, so the tech lead only gets involved once candidates have been shortlisted.
- 03
Giving no feedback on the take-home test
A candidate who spent hours on an assignment and then hears nothing will tell the community about it. Give short feedback, even to those who do not pass, as part of the company's reputation.
- 04
Changing the process midway for a single candidate
Adding a stage or swapping the test for one candidate makes comparison unfair and hard to defend. If the process needs to change, apply it to the next wave of candidates and record the reason.
Scenario
Company
A growing tech company with one tech lead as the only technical interviewer.
Situation
The company opens three engineer roles, and the tech lead spends a lot of time in first interviews with candidates who turn out not to fit. Sprints are often delayed because of interview schedules.
Expected outcome
The tech lead only meets candidates who have passed the baseline criteria, and assessments across candidates can be compared using consistent notes.
- 1HR and the tech lead agree to separate the stages: HR for baseline criteria, the tech lead for technical depth.
- 2The rubric for each role is written in Custom Hiring Criteria and used by CV Screening AI to rank CVs.
- 3Top candidates complete WhatsApp Prescreening and go through AI Interview with consistent questions.
- 4The tech lead reviews the summaries and scores, picks the test format that fits, then interviews the selected candidates.
What you get
- Candidate rankings against the role rubric
- CV summaries for the tech lead's review
- AI Interview scores and summaries
- WhatsApp prescreening answers per candidate
