The Interviewer Asked Me: "AI Codes 100 Times Faster Than You, What's Your Value?"
面试官问我:“AI 写代码比你快 100 倍,你的价值在哪?”
theme: channing-cyan
The interviewer was a seasoned technical director. He took a sip of water and suddenly posed a very sharp question:
"Do you usually use AI to write code? AI now codes 100 times faster than you, and its error rate is even lower. In this context, what do you think is the core value of a programmer? And what's the future path?"
I had actually pondered this question countless times in private. When ChatGPT first emerged and could hand-write a red-black tree, I too felt a chill down my spine, even wondering if I was about to lose my job.
Facing the interviewer's sharp gaze, I took a deep breath and gave my answer.
Recognize Reality: The Marginal Value of Coding is Approaching Zero
My first sentence to the interviewer was: "AI has indeed made the craft of 'writing code' cheaper than ever before, but this absolutely does not mean that 'building software' has become simpler."
Previously, our programmers' moat was the skilled mastery of a language's syntax and proficiency in the niche features of a framework.
But today, these 'execution layer' skills are being instantly filled by large models.
When the marginal value of 'coding' itself infinitely approaches zero, we need to re-examine our value.
I summarized three abilities for the interviewer that become even more valuable in the AI era:
- Demand Insight and Negotiation within Real Business Contexts: AI can indeed help you refine a one-sentence requirement into dozens of pages of PRD through multi-round conversations, but it doesn't understand "the boss's true intentions," nor the inter-departmental tug-of-war, let alone business compromises. The ability to combine the company's current situation, transform vague requirements into system boundaries acceptable to all parties, and technically feasible – that's a human skill.
- Architectural Trade-offs Based on Limited Resources: AI can certainly give you a perfect high-availability architecture diagram for tens of millions of concurrent users, but it doesn't know that your company's server budget is only 5,000 yuan, that your operations team can't handle K8s at all, or that the inherited legacy database absolutely cannot be touched. Based on the team's realistic compromises and decisions, AI can never provide the "correct" answer.
- Ultimate System Assurance and Accountability: This is the most critical point. AI's Code Review capabilities are indeed very strong now, capable of detecting most memory leaks and deadlocks. However, once the code is merged, if the online business crashes or user data is leaked, who takes the blame? AI cannot be fired, nor can it go to jail. Humans, as the ultimate approvers and guarantors, provide irreplaceable "trust endorsement."
"So," I looked at the interviewer and said, "our path forward is very clear: outsource all 'manual labor' to AI, forcing ourselves to engage in more brain-intensive system decisions that require taking responsibility."
Building Moats: 5 Killer Skills for the Next 5 Years
The interviewer nodded after listening and pressed further: "Good thinking. So, in terms of specific personal growth, what capabilities do you think programmers should focus on in the coming years?"
I presented my summary of 5 moats:
1. Evolve from a "Package Caller" to an "Architect"
AI excels at "local execution" and is worst at "global decision-making." Stop just focusing on how business code calls APIs; you must force yourself to think about system design from scratch. Learn Domain-Driven Design (DDD), understand network fundamentals, and learn to balance high availability, low latency, and development costs.
2. Treat AI as a "Workhorse," Not a "Crutch"
Many people use AI superficially, complaining when they get non-runnable code. True experts feed AI extremely precise background context, set strict coding standards, iterate with AI through multi-round questioning (Prompt Engineering), and even have AI output design ideas before writing code. Building your own prompt arsenal can boost your individual combat effectiveness tenfold.
3. Develop Eagle-Eyed Code Review Skills
In the future, whoever can "clean up" AI-written code will command high salaries. AI-generated code often hides fatal logical flaws or extremely poor maintainability (a 'beautiful' spaghetti code). You need to organize your own Code Review checklist: edge cases, concurrency safety, database index hit rates, etc., to make quality control an absolute barrier.
4. Understand Business, Develop a "Product Mindset"
The living space for pure tech enthusiasts will become increasingly narrow. As technical implementation costs decrease, engineers who understand business will be extremely scarce. We need to become a bridge between technology and business, understand business models, ask clarifying questions that get to the core, and even quickly prototype with AI to validate business directions.
5. Solve Real Problems with AI, Don't Just Talk Theory
True innovation isn't about hand-crafting a large model, but rather "using existing AI capabilities to solve the company's long-standing business pain points." For example, using LLMs to revamp a difficult-to-use internal knowledge base search, or using Agents to automate the troubleshooting of tedious operational alerts. Turn AI implementation into real money.
Breaking Through: Breakthrough Strategies for Different Stages
The interviewer smiled: "What you've said is all quite right, but the challenges are different for people with different levels of work experience."
I followed up: "Exactly, so my advice differs for programmers at various stages."
- Newcomers (0-3 years): Most afraid of falling into "syntax traps." Over-relying on AI auto-completion and neglecting basic debugging skills. They should use AI to quickly overcome the painful period of "memorizing syntax" and invest time in learning design patterns, data structures, and deeply understanding business. Learn AI's problem-solving "approach" rather than blindly accepting "results."
- Mid-level Professionals (3-7 years): This is the most dangerous watershed. The CRUD operations and component usage they've mastered are precisely what AI can most easily replace. They must break through upwards, lead complex system design, mentor newcomers, and specialize in a vertical domain (e.g., e-commerce transaction pipelines, audio/video low-level tech), making their "industry experience" irreplaceable.
- Senior Tech Veterans (7+ years): Don't rest on your laurels; "best practices" are being solidified into AI tools. You need to ascend to the "technical strategy" level. Think about how to introduce AI tools to improve departmental R&D efficiency? Is the ROI of introducing large model computing power worthwhile? Or become a "stabilizing force" dedicated to solving extremely difficult and complex problems.
- Cross-functional Veterans with Business Acumen: This is your golden age! "Deep industry knowledge + the ability to quickly implement ideas with AI" = dimensionality reduction attack. Go become a business partner, an independent developer, or create AI innovation products in vertical domains.
Conclusion: A Leap in Thinking is the Real Way Out
The interviewer listened, was silent for a moment, then gave me a slight smile.
"Very well said," he commented. "Many people are still immersed in the fear of being replaced by AI; you've already figured out how to leverage it."
Brothers and sisters, in the AI era, the most valuable programmer will never be the one who codes the fastest.
The most valuable is the one who can see through the essence of a problem; the one who can design elegant and robust systems; the one who can use AI as their strongest assistant and is capable of taking ultimate responsibility for the final outcome.
Never treat AI as a class enemy coming to steal your job; it's merely the most obedient, tireless intern you've ever encountered in your career.
Command it, review it, and then stand firmly on its shoulders to solve those truly profitable, high-value problems.
Our way out lies in a leap of thinking. Let's get to it! Everyone, let's work hard together! 💪