Let’s be honest: LeetCode is dead.
Not because solving algorithm puzzles was ever the perfect way to measure real-world skills, but because today it’s simply irrelevant. With GenAI tools writing clean code, fixing bugs, and suggesting multiple solution paths before lunch, traditional coding tests have lost their predictive power.
I’ve seen the earthquake that AI has caused in our industry over the past two years. The results have been staggering: teams that embraced AI and shifted focus from raw coding ability to systems thinking and AI collaboration aren’t just doing better, they’re demolishing their competition. I’m talking 2-3x faster delivery times, dramatically fewer production issues, and consistently better architectural decisions.
So if not coding tests, then what? What should we actually be looking for when we hire developers now?
The Old Way (And Why It Worked… Until Now)#
The traditional approach was elegantly simple:
- Throw candidates into a coding challenge
- Test their ability to debug, write clean functions, and handle scale
- Hire the ones who could execute under pressure
It worked decently well for building teams of strong individual contributors. We got developers who could implement features, fix bugs, and optimize performance; exactly what we needed when writing code was the primary bottleneck.
Why That Mental Model Is Broken#
Here’s the uncomfortable truth: writing code is now tactical work.
I’ve watched junior developers with six months of experience use Claude or Cursor to produce code that would have taken senior developers hours to write just two years ago. The AI handles boilerplate, suggests optimizations, and even catches edge cases that humans regularly miss.
The real bottleneck isn’t typing code anymore, it’s knowing what to build, how to design it, and how to guide AI to get you there safely.
Talking with hiring managers and candidates, a clear pattern emerges: many candidates who excel at complex LeetCode problems struggle to design a simple feature end-to-end. They know algorithms but not architecture. They can optimize a function but can’t decompose a business problem.
Those candidates wouldn’t last six months on a modern development team.
What We Actually Need Now: The New Developer Profile#
The developers you want on your team in 2025 aren’t “code monkeys.” They’re system architects with hands-on pragmatism and AI fluency.
Here’s what I actively look for:
Systems Thinking#
They see the whole picture without blind spots. When you describe a feature, they immediately start asking about data flow, failure modes, and integration points. They think in terms of systems, not just functions.
Architectural Reasoning#
They can translate messy business problems into clean technical blueprints. More importantly, they can explain their design decisions and trade-offs to both technical and non-technical stakeholders.
Problem Decomposition#
They break down complexity into clear, buildable parts. They don’t get overwhelmed by large problems, they methodically slice them into manageable pieces and tackle them systematically.
AI Collaboration Skills#
This is the big one. They know how to write effective prompts, guide AI tools toward useful solutions, and—critically—review AI output for correctness and maintainability. They’re not intimidated by AI; they’re empowered by it.
Quality Gatekeeping#
They maintain high standards when AI “gets creative.” They catch hallucinations, spot security issues, and ensure that generated code meets production standards.
In short: I want generalists who can connect the dots across the entire system, not specialists who excel at optimizing one corner.
How We Test for This: A Practical Interview Framework#
I’ve completely restructured my interview process around two core evaluations:
Interview 1: Architecture & Systems Design (60 minutes)#
Present a realistic business problem and watch how they think through it. I’m not looking for the “perfect” solution, I want to see their thought process.
What I’m evaluating: What questions do they think to ask.
- Do they ask clarifying questions about scale, requirements, and constraints?
- Can they sketch out data models, API contracts, and system boundaries?
- Do they consider failure modes, monitoring, and rollback strategies?
- Can they explain complex technical decisions in simple terms?
I don’t mind if candidates don’t immediately know the answers - in fact, I expect them to leverage AI for help. What I’m really evaluating is whether they know what questions need to be asked in the first place. The best candidates:
- Think out loud and demonstrate their reasoning process
- Ask insightful questions that reveal system-level thinking
- Know when and how to use AI effectively to fill knowledge gaps
- Arrive at pragmatic solutions that account for real-world constraints
It’s not about having all the answers memorized - it’s about knowing which questions matter and how to find answers systematically.
Interview 2: Problem Analysis + AI Collaboration (90 minutes)#
This is where the magic happens. I give candidates access to their preferred AI tools (Cursor, Claude, ChatGPT, whatever) and present a realistic development challenge.
Example: “Our API response times have increased 300% over the past month. Here’s our codebase and monitoring data. Figure out what’s wrong and propose a fix.”
What I’m evaluating: Managing the process.
- How do they break down the investigation process?
- What prompts do they write to get useful AI assistance?
- How do they verify AI suggestions before implementing them?
- Do they maintain code quality standards while moving fast?
- Can they explain their findings and proposed solution clearly?
This interview reveals exactly how they think, how they collaborate with AI, and whether they hold themselves to high standards when tools are doing the heavy lifting.
A Note to Technical Recruiters (This Could Change Your Game)#
If you’re screening candidates, stop filtering solely on “years of Java experience” or “React expertise.” Those metrics are becoming less predictive by the month.
Instead, ask these questions:
“Walk me through how you’d approach building [specific system] from scratch.” Listen for systems thinking and architectural reasoning.
“Tell me about a time you used AI tools in development. What worked well? What didn’t?” You want candidates who’ve thoughtfully integrated AI into their workflow.
“How do you ensure code quality when using AI assistance?” The best candidates have developed personal standards and review processes.
“Describe a complex problem you’ve broken down into smaller parts.” Problem decomposition skills transfer across technologies and domains.
Helping your hiring managers identify these profiles will make you stand out in a crowded market. You’ll be the recruiter who actually understands what modern development teams need.
The Competitive Advantage: Speed vs. Wisdom#
Here’s what I’ve learned from teams that have successfully made this transition: the companies winning in the AI era aren’t just moving faster, they’re making better decisions faster.
When your developers can think architecturally and collaborate effectively with AI, you get both velocity and quality. Features ship quickly, but they’re well-designed, maintainable, and robust.
When you hire traditional “coders” who struggle with AI collaboration, you get neither speed nor quality. They’re intimidated by the tools, suspicious of AI output, and spend too much time doing things that should be automated.
What’s Next: The Future of Developer Hiring#
The industry is already splitting into two camps: companies that have modernized their hiring practices and those still clinging to the old ways.
The companies in the first camp are building teams of AI-augmented architects who can design and deliver complex systems at unprecedented speed.
The companies in the second camp are collecting strong individual contributors who excel at tasks that AI is increasingly handling better.
Guess which teams will be more competitive in 2026?
The way we hire has to evolve, and it has to evolve now. Code challenges won’t disappear overnight, but their value is fading rapidly. If you’re still hiring the “old way,” you’re probably missing the kind of people who will thrive in the AI-driven future of software development.
The Bottom Line#
The transition is already happening. The question isn’t whether to change your hiring process, it’s whether you’ll change it proactively or be forced to change it when your competitors start outshipping you with smaller teams.
I’ve seen this transformation up close. Companies that embrace it early get first pick of the best AI-native talent. Companies that wait find themselves competing for a shrinking pool of traditional developers who may not be equipped for the future of software development.
Want More Guidance?#
I’ll be publishing a follow-up article specifically for developers looking to thrive in this AI-driven job market. We’ll cover:
- How to demonstrate your architectural thinking in interviews
- Building a portfolio that showcases your AI collaboration skills
- Practical exercises to strengthen your system design abilities
- Tips for discussing AI tools without overselling them
Stay tuned. The future of development is exciting, and I want to help you be ready for it.