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Building the Engine

Speaking the language. Learn how to build a high-trust relationship with your engineering team to ship better products faster.

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Engineering

Technical Specification //

The building partnership.

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Enginers don't want to be told *what* to build; they want to be told *what problem* to solve.

1The Problem Space

Instead of giving a detailed spec, give a detailed problem. 'We need a button here' is a command. 'Our users are struggling to find the logout option' is a problem that an engineer can solve creatively.

2Technical Literacy

You don't need to code, but you must understand the architecture. If you understand how data flows through your system, you can have much more productive conversations about trade-offs and complexity.

3Protecting the Focus

A PM's job is to shield the engineering team from 'Stakeholder Noise'. Every 'quick request' from sales is an interruption that breaks the flow. Learn to say 'No' so they can stay focused.

4Step-by-Step Breakdown

The relationship between Product and Engineering is the engine of the company. When it works, you ship magic. When it doesn't, you ship bugs and delays.

Product defines the 'WHAT' and the 'WHY'. Engineering defines the 'HOW'. Respecting this boundary is key to avoiding micro-management.

Trust is built through transparency. Involve engineers early in the discovery phase, not just at the end when the designs are finished.

What is 'Technical Debt' and why should a PM care about it?

  • Money the company owes to software vendors
  • The cost of additional rework caused by choosing an easy (but messy) solution now instead of using a better approach that would take longer
  • A list of features the engineers haven't finished yet
  • The salary of the engineering team

When is the best time to involve a Lead Engineer in a new feature idea?

  • After the PRD (Product Requirement Document) is 100% finished
  • During the Discovery phase, when the problem is first being identified
  • On the first day of the Sprint
  • After the CEO has already approved the release date

Level Up 🚀

Advanced cheat sheets, SEO tricks, and interview prep for this topic.

Browser Support

ChromeSupported

Fully supported.

FirefoxSupported

Fully supported.

SafariSupported

Fully supported.

EdgeSupported

Fully supported.

Accessibility (A11y)

1Champion Accessibility in the Backlog, Not Just Design

Engineers often need explicit acceptance criteria to implement accessibility correctly (keyboard support, ARIA attributes, focus management). A PM who writes those criteria into the ticket gets far more consistent results than leaving it as an implicit expectation.

// Acceptance criterion in a ticket: // "Modal must trap focus and be dismissible via Escape key"

SEO Implications

  • 1

    Engineering Prioritization Affects Crawl Health

    PMs who deprioritize technical debt indefinitely often end up with slow page loads, broken redirects, or render-blocking scripts that hurt Core Web Vitals and search ranking. Treating a portion of engineering capacity as SEO/performance maintenance is a business decision, not just a technical one.

Best Practices

Write Problems, Not Specs

Hand engineers a clearly described problem and success metric rather than a prescriptive solution. This gives them room to propose a simpler or more elegant technical approach than the PM would have guessed.

Protect the Team's Focus

Actively shield engineers from ad hoc 'quick request' interruptions from sales or support. Every unplanned context switch has a real cost to a team's velocity, even if the request itself takes five minutes.

Frequent Bugs

THE BUG

A PM repeatedly deprioritizes technical debt in favor of new features until the codebase becomes so fragile that even small changes take weeks and introduce regressions.

THE FIX

Reserve a fixed percentage of every sprint (commonly 10-20%) for debt paydown, and treat it as non-negotiable capacity rather than something cut whenever a deadline looms.

Real-World Examples

Bringing Engineers Into Discovery Early

A PM is scoping a new reporting feature. Instead of writing a full PRD alone, she brings the lead engineer into two discovery interviews and a whiteboarding session before any spec is written.

Week 1: PM + Engineer attend 2 customer interviews together
Week 1: Joint whiteboard session on technical constraints
Week 2: PRD drafted reflecting both user needs and feasibility

Interview Prep

Pascual Vila

Pascual Vila

Frontend Instructor // Code Syllabus

Common Pitfalls & Errors

The Error //

Writing tickets as prescriptive solutions instead of problems

Wrong: "Add a modal with a dropdown containing options A, B, C" Right: "Users can't find how to switch accounts — solve for discoverability"

The Solution //

Specifying exact implementation details ('add a dropdown here with these three options') robs engineers of the chance to propose a better, sometimes much simpler, technical solution and turns them into order-takers.

The Error //

Letting technical debt accumulate indefinitely because it has no visible deadline

Wrong: 0% of sprint capacity reserved for debt, every sprint, for a year Right: 10-20% of sprint capacity consistently reserved for debt paydown

The Solution //

Debt has no external stakeholder pushing for it, so it's easy to always deprioritize in favor of visible features — until velocity collapses under the weight of a fragile codebase.

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