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CASE FILE · COHORT 2022

Adriana Matsufuji

// FullStack Developer · Amsterdam, Netherlands 🇳🇱

Senior levelSalary increase

THE STORY

Adriana’s Path To Senior

  1. 01

    Adriana was already good. The question was whether the next company would see it and pay for it.

  2. 02

    She worked through the senior stack: architecture, testing, system design. And the interview skills that make depth visible in one hour.

  3. 03

    The market answered.

  4. 04

    A bigger company, better benefits, and an offer 45% above her salary. Her numbers.

WHAT ADRIANA MASTERED

Software architectureSystem designTesting strategyFull-stack fundamentalsJavaScript internalsData structures & algorithms
The offer that I got is 45% higher than my current salary, with many more benefits — and the company is also much bigger.
ADRIANA MATSUFUJI

Find Your Gaps To Senior.

20 minutes, zero fluff. Test yourself on the same dimensions Adriana mastered — and get a breakdown of exactly what to work on next.

Dragos and Bogdan Nedelcu, founders of theSeniorDev

Your Skill Breakdown

Architecture46%
System Design34%
Testing & CI71%
AI Fluency28%

THE OUTCOME

What changed at Senior level

SALARY

+45%Adriana’s own numbers

IN ADRIANA’S WORDS

The offer that I got is 45% higher than my current salary, and many more benefits and the company is also much bigger.

THE SENIOR JOURNEY

The senior skills Adriana built

Getting to senior isn’t about learning another framework. Adriana’s path covered the dimensions that actually move an engineer up a level — the same areas theSeniorDev coaches every member through:

01

System Design & Frontend System Design

Adriana learned to lead system design and frontend system design discussions — scalability, data flow, and architecture trade-offs — the conversations that separate a senior fullstack developer from a mid-level one.

02

Technical & Live-Coding Interviews

Instead of memorising answers, Adriana built a repeatable process for technical interviews, live-coding challenges, and take-home tasks — shipping production-ready solutions under pressure.

03

Fundamentals: Testing, Performance & Software Architecture

Adriana went deep on the senior fundamentals — testing, performance, and software architecture — and the mental models that outlast any framework or library.

04

The Full Software Lifecycle: Backend & Cloud

Moving beyond the framework, Adriana grew across the full stack — backend and cloud — to deliver end-to-end and become the go-to engineer on the team.

05

Selling Yourself & Communicating Senior-Level Value

Adriana learned to communicate real engineering value — a senior-level CV, LinkedIn, and STAR interview stories — so the level showed long before the offer landed.

A preview of the free Senior training

Free Senior Training.

One session, the whole system: the fundamentals, the interview strategy, and the plan Adriana followed to the offer. Watch it free.