7 Tell‑Tale Signs of an Inexperienced Programmer (And How to Avoid Them)

1. Submitting a massive code change in one go

When a pull request bundles unrelated module changes, reviewers must sift through noise, increasing merge conflicts and delaying feedback. The corrective process is to require the author to split the work by functional module, review the first issue, and either return the PR or conduct a live review.

Make small, daily commits.

Never submit code that does not compile or that breaks the build.

2. Writing low‑quality, tangled code

Inexperienced developers produce code that is messy, scattered across the repository, and hard to follow—often described as a “maze”. A disciplined approach is to first write a clear understanding of the requirement on paper, sketch a simplified flow diagram, and only start coding after the design is solid.

Before coding, ensure a clear grasp of the feature; ask many questions to clarify requirements.

Keep the implementation concise and elegant so teammates can read and understand its intent.

3. Working on multiple tasks simultaneously

Novice engineers often start a task without confirming requirements, begin coding immediately, and only report progress after completion. They also juggle unrelated features, production bugs, and assistance requests, which yields no tangible output and wastes team time.

Break each assignment into small, prioritized chunks and finish one before moving to the next.

Take one task, complete it, then start a new one.

4. Displaying arrogance

Arrogant developers reject criticism, treating feedback as a personal attack. This attitude appears both in fresh graduates who overestimate their knowledge and in mid‑level engineers who become complacent after a few successes. The result is blocked learning and stalled career growth.

Maintain humility; treat colleagues politely to advance further.

Respect every teammate, regardless of role, when offering opinions.

5. Failing to learn from past mistakes

A constructive feedback loop is essential. Developers who dismiss all review comments demonstrate a lack of real experience and adopt a “day‑to‑day” mindset without seeking improvement. An anecdote describes a colleague who angrily rejected a detailed code‑review email, insisting only functional correctness mattered.

Approach each piece of feedback with a calm, open attitude; decide to accept or reject after reflection.

Learn from errors; lifelong learning keeps you strong.

6. Handling personal affairs during work hours

Team members who browse social media, shop online, or trade stocks during work reduce their output and irritate coworkers. One developer was dismissed after repeatedly trading stocks despite a manager’s warning.

Avoid personal tasks during work; request leave if you must be away for hours.

Use breaks or lunch time for personal matters such as ordering food or checking the market.

7. Blindly chasing every tech trend

Inexperienced engineers constantly jump to the newest framework after reading tutorials, but rarely apply the knowledge to real projects. This creates a false sense of mastery without practical validation, often driven by vanity rather than actual need.

Invest time in technologies that solve real problems in your projects.

After learning from tutorials, immediately build a feature to cement the knowledge.

Code example

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