Henrik - Java Developer AI Skill

Name: Henrik - Java Developer AI Skill
Brand: KissMySkills
Price: 29.0 USD
Availability: InStock

Henrik - Java/Spring Boot Backend Engineer Claude skill by KissMySkills, hardcover volume cover

$29.00

$29.00 $43.99

Henrik - Java Developer AI Skill

4.87 · 6,430 reviews across KissMySkills

$29.00 this skill vs $43.99 hiring a senior Java/Spring Boot contractor

Complete skill package instant downloadhenrik-java-spring-boot-engineer.skill

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Choose how to get it

Buy once $29 Keep the file forever. Instant download. All-Access this skill + 1,000 more $8.25/mo billed yearly Loaded into your chat by the connector. Or $19 month to month. Cancel any time.

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Ask Henrik something hard.

📎 henrik-java-spring-boot-engineer.md LOADED ✓

Spring Boot service: APM shows one endpoint firing 300+ SQL queries per request. Hibernate. You already know what it is, right?

CLAUDE · AS HENRIK, JAVA DEVELOPER N+1, yes - but the fix is not sprinkling EAGER, which just moves the explosion to every other endpoint. Turn on hibernate.generate_statistics and assert query counts in tests; for this endpoint: JOIN FETCH or an EntityGraph for the associations it renders, or a DTO projection if it's read-only - most 300-query endpoints are lists needing 4 columns, not entities. Pin the count in a test (expect 2-3, not 300) so the regression can't sneak back, and check open-in-view - if it's on, your fixed endpoint still lazy-loads during serialization. Paste the entity graph and I'll write the fetch plan.

⚡ Instant download ∞ Keep forever ✎ Written by us

Add it once. Your AI works like a specialist.

Add it to Claude, ChatGPT or Gemini - your AI works as a specialist in this field.

Instant download · 30-day money-back guarantee. Pay once, keep forever - no subscription. Written and tested by us, never scraped from GitHub. Refund policy

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You don't read it. Your AI does.

Add the skill file to Claude, ChatGPT or Gemini once. From then on it works as a specialist in this field and answers as Henrik from the very next message.

Buy once and the file is yours to keep forever. Or subscribe to All-Access and let the KissMySkills connector load it, and every other skill, into your chat on request.

// reviews

What buyers say.

From reviews across KissMySkills

★★★★★ Max T. on Nadia — Email Marketing Specialist

strategy consultant. client deliverables need to meet a high bar. this gets me to a usable first draft in a fraction of the time.

★★★★★ Karolina W. on Diane — Executive Assistant

product manager. used to spend too much time formatting and structuring. this gives me a consistent starting point every time.

// what's inside

What's inside this skill

The N+1 query source located, with its fix
Transaction boundary review across your service
REST API design critique with corrected signatures
Checklist of Spring config issues left to close

Java developers and backend teams shipping Spring Boot without a senior reviewer

A senior Java/Spring Boot contractor bills $100+/hr, the complete skill is yours forever.

// what's inside

What you're actually buying

What Henrik Does

Henrik turns Claude (or ChatGPT, or any AI chat) into a Senior Java/Spring Boot Backend Engineer who diagnoses N+1 queries, transaction boundary bugs, REST API design, and Spring Security configuration from real evidence, then hands back a concrete, ready-to-execute plan.

Who It's For

Backend engineers and founders running a production Spring Boot service who need architecture, JPA/Hibernate performance, transaction, or security decisions made correctly.

Key Capabilities

Application architecture: layered vs hexagonal, chosen by actual domain complexity rather than trend
JPA/Hibernate performance: N+1 query detection, JOIN FETCH, @EntityGraph, and batch fetching tied to an actual query count
Transaction management: @Transactional placement and propagation (REQUIRED, REQUIRES_NEW, NESTED) matched to the real unit of work
REST API design: resource naming, status codes, versioning, and pagination that match how the API is actually consumed
Spring Security: filter chain configuration, JWT vs session auth, and method-level authorization matched to the actual threat model
Testing strategy: JUnit/Mockito unit tests, Spring slice tests, and Testcontainers integration tests where the real database matters

How to Use It

Download the skill file and paste the full contents into your Claude Project Instructions (or any AI chat's system prompt). Then describe your problem in plain language and get back a concrete, ready-to-execute plan - no re-explaining context every session. Works with Claude, ChatGPT, and any AI chat. Under 2 minutes to install.

// how to install Under 2 minutes

Four steps. Any AI chat.

01
Download the file
After checkout, the download link lands in your inbox. Save the file anywhere on your device.
02
Open your AI chat
Claude, ChatGPT, Gemini, Grok, or Copilot - whichever one you already use.
03
Paste the file contents
Drop it into the system prompt, Project instructions, or custom instructions field.
04
Start working
Your AI is now configured as a specialist. Ask it anything inside its domain.

No technical knowledge required. No subscription. Pay once, keep forever.

// compatible with

Works with every major AI chat.

Drop the file into your AI's system prompt, Project instructions, or custom instructions. No setup. No code. No vendor lock-in.

What buyers say across KissMySkills

This skill has no reviews of its own yet. These are real reviews of other KissMySkills skills, built the same way.

★★★★★
operations lead at a growing startup. we needed consistency across the team. this gave us a shared baseline to work from.

Lukas B. on Nadia — Email Marketing Specialist
★★★★★
dropped Serena - Market Researcher AI Skill into Claude projects and it just works. writes campaign briefs, social post directions, monthly content outlines. the output doesnt need much editing which is the main thing.

Sarah K. on Serena — Market Researcher
★★★★★
cfo at a professional services firm. the output structure matched what our board expects.

Jan Z. on Nadia — Email Marketing Specialist
★★★★★
product designer. needed a structured communication layer for cross-functional work. this provides it.

Ewa A. on Serena — Market Researcher
★★★★★
investment analyst. the analytical structure matches what i need for client-facing documents.

Joanna Y. on Diane — Executive Assistant
★★★★★
hr business partner at a 200-person organisation. the structured outputs made it easier to standardise documentation quality.

Rachel M. on Nadia — Email Marketing Specialist

// faq

Questions about this product

What AI tools does this work with?+

Claude, ChatGPT, or any AI chat that accepts a system prompt or Project Instructions. Claude Projects gives the best results.

How do I install it?+

Paste the SKILL.md contents into your Claude Project Instructions or system prompt. Under 2 minutes, no setup required.

Is this a course or a tool?+

It's a single skill file, not a course. Load it once and Henrik applies the same expertise and methodology from the first message of every session.

Can Henrik fix an endpoint making hundreds of queries?+

Yes. Share the endpoint and entity relationships and Henrik diagnoses the exact N+1 pattern and the exact fetch-strategy fix (JOIN FETCH, entity graph, or projection) with the expected query-count reduction.

Do I have to read it myself?+

No. The file is written for your AI to read, not for you. Upload it or paste it in once and the AI takes on the role. After that you just ask it questions the way you normally would. You're welcome to open it and read it, but nothing here depends on you doing that.

Is this a physical book?+

No, it's digital. You download it the moment the order goes through and it's yours permanently. The cover is styled like a book because each edition is written and edited as one self-contained piece of work. The reading part is your AI's job, not yours.