There's a conversation that happens in every engineering team, usually after a hire doesn't work out: "They crushed the interview. I don't know what went wrong."
The answer is almost always the same. The interview tested the wrong things. Or the right things, but in the wrong way. Or the candidate optimized for the interview format rather than the actual job.
Emma Bostian — a software engineer at Spotify, co-founder of the Ladybug Podcast, and one of the most widely-read voices on engineering career development — has spent years dissecting exactly how and why technical interviews fail both candidates and companies. Her framework, laid out in her widely shared "De-coding the Front-end Interview Process" and expanded in her LeadDev Bookmarked conversation, offers a perspective that's valuable for both sides of the hiring table.
At Ruzora, we sit at the intersection. We evaluate hundreds of engineers every month and present them to companies who are making critical hiring decisions. Understanding where the interview process breaks — from the candidate's experience and the company's — is the foundation of how we vet, match, and deliver.
Here's what we've learned from Emma's framework, and how we apply it.
The Interview Is a Two-Way Street (Most Companies Forget This)
Emma's most fundamental insight is one that sounds obvious but is routinely ignored: the interview is bidirectional. The company is evaluating the candidate, yes. But the candidate is also evaluating the company. And how you run your interview tells candidates everything about how you run your engineering team.
A disorganized interview signals a disorganized company. A respectful interview signals a team that values people.
According to a 2025 Glassdoor survey, 83% of candidates say their interview experience directly influences whether they accept an offer. For senior engineers — the ones with multiple options — a poor interview experience is often the deciding factor in declining.
We see this constantly at Ruzora. Our top candidates — engineers with 8 to 12 years of experience, strong English, and deep technical skills — are interviewing with multiple companies simultaneously. The companies that lose them aren't the ones offering less money. They're the ones running sloppy, adversarial, or disrespectful interview processes.
The Four Stages — and Where Each One Breaks
Emma breaks the technical interview process into four distinct stages: the cultural interview, the coding interview, the take-home challenge, and the final round. Each stage has a specific purpose, specific failure modes, and specific ways to get it right.
Stage 1: The Cultural Interview
This is typically the first human touchpoint — usually conducted by a recruiter or hiring manager. Its purpose is alignment: does this person's experience, goals, and communication style match what the role requires?
Where it breaks:
- Recruiters who don't understand the technical domain ask surface-level questions that waste everyone's time.
- Candidates who can't articulate their experience concisely get screened out despite being technically strong.
- Companies that treat this as a checkbox rather than a genuine conversation miss critical signals about communication quality.
What Emma recommends — and what we do:
Emma emphasizes preparation on both sides. Candidates should have a concise personal narrative and 1-2 stories that demonstrate problem-solving and impact. But the flip side is equally important: the interviewer should be prepared too. They should know the candidate's background, have specific questions ready, and be able to articulate what success looks like in the role.
At Ruzora, our cultural screening is more rigorous than most companies' final rounds. We evaluate:
- Communication clarity. Can the engineer explain a complex technical decision in under two minutes?
- Self-awareness. Do they know their strengths and honestly acknowledge their gaps?
- Professional maturity. How do they talk about past employers, difficult situations, and failures?
Emma makes a point that resonates: never criticize former employers. It signals disloyalty and poor judgment. We've seen this disqualify otherwise strong candidates more times than we can count.
Stage 2: The Coding Interview
This is where the process most frequently fails. Emma calls it "the dreaded coding interview" — and she's right that for many candidates, this is where anxiety peaks and authentic ability disappears.
Where it breaks:
- Companies test algorithmic puzzles that have no relationship to daily engineering work.
- Candidates who've memorized solutions to common problems pass, while experienced engineers who haven't practiced LeetCode in years struggle.
- The high-pressure, time-constrained format rewards performance anxiety management, not engineering skill.
What Emma recommends:
- Think out loud so interviewers can follow your reasoning.
- Ask for clarification when directions are unclear.
- Fail fast and iterate — don't spend 20 minutes on an approach that isn't working.
- Be honest when you don't know something. An educated guess is better than a fabricated answer.
- If you've seen the problem before, say so. Integrity matters.
How we apply this at Ruzora:
Our coding assessments are designed around Emma's principles but adapted for the vetting context. We use realistic, job-relevant tasks — not algorithmic puzzles. We explicitly tell candidates that we care about their process, not whether they finish. And we observe the same things Emma highlights:
- Do they ask clarifying questions before diving in?
- Do they test their code incrementally?
- When they hit a wall, do they debug systematically or panic?
- Can they articulate why they chose one approach over another?
The candidates who pass our coding stage aren't necessarily the fastest coders. They're the most thoughtful engineers.
Stage 3: The Take-Home Challenge
Emma views the take-home as an opportunity for candidates to demonstrate their skills without the pressure of being observed in real-time. It's a format that tends to favor engineers who produce clean, well-structured, and thoughtful work — exactly the kind of engineers you want on your team.
Where it breaks:
- Companies assign take-homes that require 10 to 20 hours of work, which is disrespectful of candidates' time (especially those with families, side jobs, or other commitments).
- There's no standardized evaluation criteria, so results depend on which reviewer looks at the submission.
- Some companies use take-homes as free labor — assigning candidates to build actual features.
Emma's pre-submission checklist:
Before submitting, candidates should ask themselves: Did I meet all requirements? Is the solution performant? Is it responsive? Is it accessible? Is the code clean? Am I proud of this?
That last question — "Am I proud of this?" — is the one we've found most predictive. Engineers who take pride in their craft produce consistently better work over time.
How we handle it:
We don't use traditional take-homes in our vetting process — the time burden on candidates interviewing with multiple companies is too high. Instead, we use focused, time-boxed assessments that take no more than 90 minutes and are evaluated against a standardized rubric. This gives us the signal of a take-home without the candidate burden.
Stage 4: The Final Round
This is where the decision gets made — and where bias is most dangerous.
Where it breaks:
- Interviewers anchor on a single strong or weak moment rather than evaluating the full picture.
- "Culture fit" becomes a proxy for "similar to us" rather than genuine alignment on values and working style.
- Companies move too slowly after the final round, and top candidates accept other offers.
What we see at Ruzora:
The number one reason our clients lose candidates at the final stage is speed. A 2025 Robert Half study found that 62% of professionals lose interest in a role if they don't hear back within two weeks of the final interview. For in-demand senior engineers, that window shrinks to one week.
We coach our clients to make decisions within 5 business days of the final interview. The companies that move fastest close the best candidates.
What Both Sides Get Wrong
Emma's framework reveals a deeper truth that applies to both candidates and companies: most people optimize for the wrong part of the process.
Candidates optimize for:
- Memorizing algorithm solutions
- Practicing whiteboard performance
- Polishing resumes with buzzwords
When they should optimize for:
- Telling clear, specific stories about their real experience
- Demonstrating how they think through problems
- Showing curiosity and asking insightful questions
- Being honest about what they know and don't know
Companies optimize for:
- Finding the "smartest" person in the room
- Testing obscure technical knowledge
- Running candidates through as many rounds as possible
When they should optimize for:
- Assessing whether this person can do the actual job
- Evaluating communication and collaboration ability
- Making the process fast, respectful, and transparent
- Testing real-world judgment, not trivia
Why This Matters for LATAM Hiring
Emma's framework is especially relevant for companies hiring nearshore engineers from Latin America. Here's why:
Cultural interviews matter more. When your engineer is remote and working across cultures, communication quality isn't a nice-to-have — it's the most important predictor of success. Our cultural screening is designed to test exactly what Emma describes: clarity, self-awareness, and professionalism in cross-cultural contexts.
Coding assessments must test real work. LATAM engineers often have deep production experience but may not have practiced LeetCode recently. A process that selects for puzzle-solving ability will screen out experienced engineers who ship production code every day. Our realistic assessments ensure we're measuring what matters.
The interview experience is your employer brand. LATAM senior engineers talk to each other. A respectful, well-structured interview process generates referrals. A bad one generates warnings. At Ruzora, our candidate NPS of 87 is one of our strongest competitive advantages — because great engineers tell other great engineers about their experience.
Speed closes deals. Senior LATAM engineers with strong English and modern tech stacks are in high demand. Our clients who move fastest after the final interview close 3x more of their first-choice candidates than those who take two or more weeks.
The Bottom Line
The interview process isn't just a filter — it's a mirror. It reflects your company's values, your team's culture, and how you treat people under pressure. Emma Bostian's framework for de-coding the process is valuable precisely because it exposes the assumptions both sides bring to the table.
At Ruzora, we've built our entire vetting process around the principle that the best predictor of engineering success isn't how well someone performs under artificial interview pressure. It's how they think, communicate, and solve real problems — the same things they'll do every day on your team.
The companies that get this right don't just make better hires. They build reputations that attract the best candidates before the interview even starts. And in a global talent market where the best engineers have options, that reputation is the most valuable recruiting tool you can build.
