Perhaps the single biggest mistake companies make in selecting developers is assuming strong technical skills will automatically translate into performance over the long haul. Too many teams hire candidates who ace the coding test and then stop there, never considering whether that person will actually be able to perform under real-world constraints, clearly communicate, and take responsibility for their work when priorities shift. Better is to assess candidates via scenarios representative of natural workflows, including asynchronous collaboration on an assigned task, taking ownership of a vaguely defined task, or even making decisions with realistic constraints. Another important thing the companies need to understand while hiring dedicated developers is that commitment comes from context, not from contract terms only. A developer, in fact, will be dedicated if he has clear goals, predictable processes, and product ownership. A long-term partnership demands an environment of focus, autonomy, and continuous professional growth-not just a place where employees are treated as easily replaceable resources.
I led engineering teams for 30 years before becoming a life coach who works primarily with technologists, so I've been on both sides of technical hiring--and honestly, the biggest miss isn't technical at all. Most companies treat hiring like filling a seat with skills, but they skip the most critical question: **does this person's core values align with how we actually work?** I've seen brilliant developers flame out in three months because they valued deep focus and we had a constant-interruption culture. I've also seen "average" coders thrive for years because they valued collaboration and we paired constantly. Before you post the job, get honest about what your team *actually* rewards daily--speed vs. quality, autonomy vs. alignment, shipping vs. perfecting--then ask candidates about moments they felt most alive at work. If their stories clash with your reality, the resume doesn't matter. The signal I wish I'd used earlier: **ask candidates to describe a time they had to choose between what they wanted to build and what the situation actually needed.** Strong engineers can tell you about killing their favorite solution because the team needed something maintainable, or shipping something "good enough" because users were hurting. Weak hires either can't recall that tension or they're still bitter about the compromise years later. Stop optimizing for pedigree and start filtering for self-awareness. A developer who knows what energizes them and what drains them will tell you upfront if your role is a fit--and that honesty saves everyone six months of pain.
In hiring for Medix Dental IT, I've found most companies get it wrong. They focus on credentials, not curiosity. I've hired developers who knew nothing about dental IT but were excited to figure out new security rules. They learned fast. My advice? In interviews, ask how they'd solve a problem they've never seen. The ones who adapt quickly are the ones you want on your team.
I care more about people's side projects than their resume. During our Y Combinator batch, our best hires were always the ones who had built things on their own. That initiative carries over. They don't wait around to be told what to do, they just jump in and fix problems.
I learned the hard way at Tutorbase not to get dazzled by credentials. I hired developers with perfect resumes who couldn't handle our messy day-to-day problems. Now, we give candidates a small coding test that mirrors our actual work. It immediately shows who can figure things out and who just memorized concepts. Giving finalists a tiny real project tells you way more than a resume or brain teaser ever could.
Here's the thing about hiring developers: the resume tells you nothing about how they work with others. For remote teams, that's everything. Bad communication will kill your momentum. So now I make candidates do a small, live project with me. The people we hire actually mesh with the team and don't just disappear after a month.
I've hired dozens of developers across multiple platforms--from Road Rescue Network's dispatch systems to iTrucker.ai's routing algorithms--and the biggest mistake isn't technical misjudgment. It's hiring developers who've never felt the pain of their own code in production. I only hire people who can walk me through a system they built that real users depend on daily, and explain what broke at 2 AM and how they fixed it under pressure. The best signal I've found outside resumes? Ask candidates to critique one of your existing platforms during the interview. When we were scaling Road Rescue Network's rescuer app, I had candidates review our job acceptance flow and explain what they'd rebuild first. The ones who immediately spotted UX friction points that affected driver earnings--not just code elegance--always performed better once hired. They think like operators, not just engineers. For sourcing, I've had unexpected success recruiting from industries with hard constraints--logistics software, fleet management systems, payment processing. One of our best hires came from a fuel card processing company; he understood transaction reliability and location-based routing better than any startup developer I'd interviewed. He built our automated dispatch system in half the time because he'd already lived through similar problems at scale. Here's what most companies miss: developers who've built unsexy B2B tools often outperform those with sexy consumer app portfolios. The guy who built trucking load boards understands data integrity, edge cases, and unglamorous reliability work. That's worth more than someone who shipped a viral feature once but never had to maintain it through 50,000 daily transactions.
> We're rewriting a TestGorilla article titled "How to hire a dedicated developer" and are looking for practical insights from people who have hired software developers at any scale — from early-stage startups to large engineering teams. > > We want real experiences from engineering leaders, recruiters, and technical hiring managers who know what it actually takes to find, evaluate, and hire high-quality developers today. I have been responsible for hiring developers as an engineering leader. > Please answer one or more of the following: > > * What's the biggest mistake companies make when hiring developers — and how can they avoid it? Not verifying that the candidate is a good fit. There are various aspects to this — personality, technical skills, soft skills, independency and agency. It isn't always possible, but some kind of paid trial run where they work together is essential. A (paid) take home assignment doesn't cut it. Be willing to part ways if it isn't a good match, and set that expectation when hiring. > * What signals (outside of the resume) help you identify strong engineering talent early in the process? Willingness and ability to look into your code and talk about it as they learn about it. Preferably a stack they are familiar with. > * Which sourcing channels or tactics consistently deliver high-quality developer candidates? Referrals. > * How do you assess coding ability or problem-solving skills fairly and reliably? Let them walk through your code and talk about it as they explore it. They can discuss what they learnt, what they found and ask questions. You get to see them working with their editor/IDE and tools > * What's one thing you wish more companies understood about hiring dedicated developers? Too many people can talk around the code, but not work well with code.
VP of Demand Generation & Marketing at Thrive Internet Marketing Agency
Answered 5 months ago
How I Judge Coding Ability The best way I have found to evaluate skill is a CODE REVIEW CHALLENGE where candidates review flawed code and walk me through how they'd fix it. It shows how they make technical decisions, how well they identify issues in the code and how clearly they explain their feedback which are all part of real day to day engineering. I include a reasoning test afterward to check how they think under tighter limits and more layered situations. Giving everyone the same task with the same scoring method makes the evaluation consistent and fair. What Matters Most When Hiring Dedicated Developers I see too many companies treat SPEED IN A TEST like it is the real indicator of talent and it just isn't. It does not reflect how well someone writes maintainable, readable, team-friendly code that holds up in real projects. In day to day engineering, a well-organized code and solid structure beats speed every time. I suggest that companies better spend time on code quality reviews and real examples of refactoring or improving complex systems because that is what drives long term productivity.
Where Developer Hiring Often Goes Wrong A lot of teams depend on algorithm puzzles in interviews but this "LeetCode style" testing has little to do with the real challenges developers deal with on the job. Actual engineering work means debugging, improving existing code and working with different systems not answering academic-style questions. So it makes more sense to test them with small tasks from your real code. A small fix or feature change can reveal a candidate's judgment and overall coding habits. Signals of High-Quality Engineering Talent When someone hears a problem and immediately asks how big the system needs to be, what limits they should plan for and what "done" actually looks like and that tells me a lot. It shows they're focused on understanding the real problem instead of rushing into a fix that misses the mark. That instinct comes from real world experience where incomplete information leads to bugs and wasted effort. This kind of thinking is one of the clearest signals that they will succeed in an engineering role.
To fairly assess coding ability, I recommend combining a live coding session with a follow-up discussion of decisions made during the exercise. This helps you understand how the candidate approaches problems in real time and how they think through the steps behind their choices. It also creates a more open environment where candidates can explain their reasoning without feeling rushed. This way, you can see how the candidate solves problems on the fly and how they reflect on their choices. It also allows you to understand how they respond when the problem changes or new information becomes available. Avoid purely algorithmic whiteboard puzzles because they often reward memory instead of practical problem-solving. Use scenarios that mimic actual work so you can evaluate how they plan, adapt and communicate.
The biggest mistake is hiring for experience over learning speed. At DualEntry, we've passed on senior developers with perfect resumes who couldn't adapt, and hired junior engineers who became core contributors in months. Trajectory beats credentials. We don't do whiteboard tests. We give candidates a real problem from our backlog, scoped to 2-3 hours, paid whether we hire them or not. You see how they structure code, communicate blockers, and handle ambiguity. Resumes lie. Code doesn't. The signal that matters most? How they talk about past projects. Strong engineers explain tradeoffs, not just solutions. They'll tell you what broke in production, what they'd rebuild, what they learned when things went wrong. If someone only talks about wins, they didn't own the hard parts. For sourcing, developer communities outperform job boards 10:1. Discord servers, open-source contributors, technical Twitter. People who code in public signal competence before the interview starts. Referrals work too, but only if your current team is exceptional. Otherwise you're cloning mediocrity. The thing most companies miss: dedicated doesn't mean available. It means invested. The best developers care about the problem you're solving, not just the paycheck.
When I interview developers, I care more about what they're doing in their spare time. The person who just learned a new language for fun? They usually adapt better than the one who only knows what they learned five years ago. Things change quickly here. So someone who's curious and willing to try new stuff is more valuable than a long list of technical skills.