For Brazilian devs

You already code. Now level up beyond it.

Learn to stand out from the daily to the sprint review, training your English and your strategic, technical and tactical thinking.

In English, just like the app. Stuck? Drag Lumi ↘ over any text.

What you practice

Work English

The English of the daily, PRs, code review and demos.

Business context

Understanding what the PM, the CEO and the metrics are asking for.

Career

Starting to think like a tech lead, a specialist or a PM.

Has this ever happened to you?

“Any blockers?”

You rehearsed your update before the daily and froze when it was your turn.

“I have a doubt…”

You wanted to ask a question, but in English it sounded like you didn’t trust your teammate.

“Sorry, sorry…”

You apologized so much in your update that the delivery date got lost in the middle.

“What’s the blast radius?”

You understood every word, but not what they wanted to know.

Why not just Duolingo?

Duolingo is great to get started. But it teaches you how to order a coffee, and at work you need to tell everyone at the daily that your task is running late.

Language appBugling
SituationTravel, restaurantsDaily, review, demo
Who talksA narratorYour squad, PM and CEO
FormatTranslating sentencesCalls, Slack, PRs and docs
You getVocabularyEnglish and positioning

Try it here

Four parts of the app you can play right on this page.

Roadmap review · all-hands
Silk · Founder & CEO
◉ CALL

Silk: “Questions from engineering?” You want to ask something useful for the whole company.

The CEO opened the floor. Which question would you ask?

In front of the whole company, the best question is about the business. Take the technical detail to your squad.

Portrait of Jessica Hollander, smiling, in a denim shirt.
Who built it

Hi, I’m Jess.

I learned to code from YouTube videos. Then I spent years working in English for New York companies without leaving Rio. I went from dev at the Apple Developer Academy to Senior AI PM at ClassPass.

In 2026 I became a mom and quit ClassPass to focus on motherhood. Along the way I wanted to build something of my own, and that’s how Bugling was born. It’s the practice I wish I’d had when I started working in English.

I’ve been mentoring product and tech people since 2022, and I put that dev and PM perspective into every meeting in the app.

Jessica at the Apple Developer Academy.
2018 · Apple Academy4 apps in 11 months
Jessica presenting Fake Off to Malala Yousafzai.
2018 · Fake OffPresented to Malala, on CNN
Santander Brasil trainee class.
2018 · SantanderAI transactional chatbot before GenAI existed
Jessica at an Eleva event.
2019 · ElevaEdtech for 80,000 students
2021 · PowerToFly, NYGroup PM, from Rio to New York

Part of the strategy behind a US$30M investment.

2024 · ClassPass, NYSenior AI Product Manager

A chatbot with 10× the expected deflection.

For companies

Bugling can also be your team’s onboarding.

I build the first sprint around your company’s rituals, stack and terminology. New hires practice in the right context.

Talk to Jess jess@hollandertech.com

Onboarding

A sprint built with your company’s rituals and vocabulary.

Team training

Practice focused on code review, incidents or demos.

Leadership track

For devs who are becoming tech leads.

Mentoring with Jess

Sessions with me on career and product.

Join the beta list

I’m opening it to small groups first. When it’s your turn, I’ll send you an invite by email.

What kind of dev are you?

drag me