Propósito: Lo que aprendí al renunciar como líder de equipo dos veces

Software engineer, lecturer, podcast host, author — is there something Emma Bostian hasn't done? She moved from America to Sweden, started working at Spotify, and took up a few challenges along the way. And now she has some career tips to share.

What led you to software engineering? 
I was raised in the ecosphere of tech because my dad is a software engineer at IBM, and my mom was a designer there, too. My dad always encouraged me to join STEM and take a look at computer science — however, I was convinced I wanted to be a medical doctor. In my first year of college, I declared a biology major and quickly realized I was not too fond of it. In my second semester, I switched to an actuarial science major where I took Introduction to Computer Science, and the rest is history. In my second year of college, I declared a computer science major and began my journey from there.
What is the most impactful thing you ever did to boost your career?
Writing blog posts and documenting my learning journey on Twitter has far been the best career boost. I wrote purely for myself to reference the things I learned over time, and I even utilized my design skills in Figma to create custom graphics depicting difficult concepts like CSS specificity. By sharing my blogs on Twitter and engaging with the people reading them, I was able to grow an audience extremely quickly. I began receiving conference speaking opportunities, podcast requests, and course invitations to teach with LinkedIn Learning and Frontend Masters.
Ultimately, I landed my job at Spotify through Twitter, too, when a friend and follower of mine asked if I would be interested in interviewing. Now I live in Stockholm working my dream job. It still blows my mind how tweeting about my blog led me to some of the most amazing career opportunities.
What would be your three tips for engineers to level up their career? 
First, be patient. I often see posts on Twitter or LinkedIn about developers who were promoted to a senior position after a year. And while this is wonderful, I think we forget that each company has a different standard for what constitutes a senior developer, and everyone's journey will be different.
Second, don't be afraid to ask questions. If you try your best to solve a problem or answer a question you have, but you can't figure it out after a reasonable amount of time, ask a team member or mentor for help.
And lastly, invest in the right resources for learning. When I started my journey, I didn't know which platforms worked for me to learn. Now, I have a few trusted platforms such as Frontend Masters, Free Code Camp, or Level Up Tutorials that I go to when I need to learn a new skill.
You're currently working as a software engineer at Spotify. What does a typical day of yours look like there?
I begin my day answering emails. Then we have a team breakfast and a standup remotely as we're all still remote at Spotify. After that, we might have a web tech sync with the other squads in our business unit. The day usually includes some form of pair or mob programming, depending on the work stream. 
My team always has Fika, a traditional Swedish coffee break, scheduled every afternoon. Every couple of Fridays, we have team games planned to release some stress. 
Also, I tend to have a lot of free time to focus, which is nice but makes for a boring answer to this question!
Do you have some rituals or tools that keep you focused and goal-oriented?
I'll admit that I've been struggling with staying motivated in the time of remote work. I've been remote with Spotify since onboarding a year ago, but my team is wonderful, and they help me when I'm down.
Apart from that, I use Todoist to keep track of my tasks, and, naturally, I listen to Spotify while working. But other than that, not really. Maybe I should adopt some new tools to keep me on track!
My current favorite Spotify playlist is Brand New Chill: https://open.spotify.com/playlist/37i9dQZF1DX6uQnoHESB3u?si=380263b3c853442e
I also love Chillout Daily: https://open.spotify.com/playlist/7ozIozDp260fjNOZy1yzRG?si=66d6c839ec9b458a
You wrote a book called De-coding the Technical Interview. What was the impulse to do it?
I wanted to give the community a manual of the essentials of computer science knowledge to ace the technical interviews. The book covers data structures like stacks, queues, or linked lists, tackles algorithms, and deals with systems design. You'll also learn about the interview process from start to finish, get tips on how to submit an amazing take-home project, or understand how to problem solve. You'll also gain knowledge on the frontend coding skills needed to excel at a frontend interview.

If you could stress one piece of advice on surviving a technical interview, which would it be?
Do not lie your way through an interview. If you don't know the answer to something, just admit it. There's no shame in admitting you don't know the answer to something. There is shame in faking it and pretending like you do know the answer.
What's the single best practice everyone who writes code should follow?
Remember that while you are technically writing code for computers, you're also writing it for humans. Your code should be readable and have as little complexity as possible without sacrificing accessibility or performance.
In addition to the book, you co-host the Ladybug Podcast. What inspired you to enter this field, and what are the podcast's main topics?
We talk about everything tech and career on the podcast, from Java and GraphQL to how to start a business and cross-cultural communication. The podcast is a way for me and my co-hosts to share our experiences in tech, having taken different paths. And I'm really glad for doing it — it has allowed me to meet so many incredible people, learn many new things, and support my dream of teaching.
What pieces of your work are you most proud of?
My technical interview book was a huge feat for me as well as my courses with LinkedIn Learning on building a tech resume. I enjoy creating things that help other people advance their careers, so I'm also proud of my courses with Frontend Masters on design systems and CSS.
***
Follow Emma on Twitter

Even though his bio offers quite a hefty reading, he only applied for one job in his career. The rest came along as he was building his name as a renowned speaker, teacher, and a prolific figure of the open-source community. How did Kent do it? “Commit to creating high-quality content,” he says.


What led you to programming?
I had a friend when I was a teenager who was really into it, and he tried to teach me. But I just couldn't get it — it didn't make any sense to me. So I never really thought I'd get into programming, but I liked computers a lot, and I ended up going to school for electrical engineering. 
Well, that didn't work because I'm not good at math. But right when I started the program, I got a job at a company uploading videos to YouTube and that sort of thing. The work was tedious, so I decided to write a computer program to automate lots of the work I was doing with the knowledge I had about programming. And that was the first spark of things for me to use programming to solve real-world problems. 
What is the most impactful thing you ever did to boost your career? 
Committing to creating high-quality content. That might sound obvious because I'm a full-time educator now, but I would not have gotten my job at PayPal if I hadn't been so active with my blog. In fact, lots of my jobs came out of me being involved in the community around meetups, conferences, or open-source projects. 
How do you choose topics for the content you create, be it for your blog or podcast?
I don't think too much about the content other people are creating. And I don't often consume it. My ideas come from the things that I'm working on, things that I'm learning myself, or — when I was working with a team of developers — the things that I had to remind people of in code reviews regularly. Anytime that I would have a code review comment that was pretty long to describe my position, that was an excellent opportunity for a blog post. Also, if people ask me about a topic regularly, I'll make a blog post rather than answer that question multiple times.


What would be your three tips for engineers to level up their career? 
The number one thing I tell people is to be a nice person. I know that sounds fluffy or silly, but it cannot be overstated. You will get so much further in your career and just in life in general if you're a nice person. That doesn't mean that you take people being jerks lying down, but how you interact with others is out of kindness. You could be the best engineer in the entire world, but if you're not a nice person, you will not reach your full potential or accomplish your goals, whatever they may be.
Second, it's just as important to decide what you are not going to learn as it is to decide what you are going to learn. You could jump into countless things — and there are successful people who are polyglot programmers, but I can't speak to that a whole lot. All I can tell you is that in my experience, focusing on specific things that I want to be truly good at has worked out great for my career. That doesn't mean that I closed myself off to other things. With my website rewrite, I have been doing a lot of dev ops-related work and a lot of back-end stuff that I've typically not been involved in. You want to keep your head up on what's going on outside of what you're doing so that you know what direction to go in when you come across problems you need to solve. However, finding a focus on what you want to be good at has helped me a lot. That way, you feel a little less stressed.
And the third one? 
Learn how to learn effectively. It's a three-step process: you consume, build, and teach. The consumption of newsletters and Twitter and whatever inspires you, but you don't want to spend too much time doing that — implementing it into actually building something matters. This happens naturally if you work at a company, but maybe you're not making the things you want to learn, so you may want to start a side project. The building phase is where you get experience, but you also want to solidify that experience. How? You start teaching. You don't necessarily have to teach it to people, it could be stuffed animals. The goal of the teaching is to retain in your mind what you've learned through the building process.
What are you working on right now? 
The big thing I'm working on right now is a rewrite of my website. It'll be much more than just a developer portfolio — I'll have user accounts, and there'll be fun things that you can do with it. And because it's more than just a website, I'm using Remix, a new cool framework in the React ecosystem. I'm also working on updating my material on TestingJavaScript.com and a TypeScript course as well. 
So, whatever I'm working on, it ends up resulting in lots of opportunities for content.


Do you have some rituals that keep you focused and goal-oriented? 
I have a notepad where I keep all of my notes of what I'm going to do for the day so that when I'm checking things off, I'm not distracted notifications. I've tried apps for that, and that does not work well for me. 
I also am a firm believer in inbox zero. I have my work inbox and my personal inbox, and I keep them both at zero. And I kind of use that as a to-do list. 
And if I'm not feeling excited about working for some reason, I will often hop on my Onewheel, which is an electric skateboard that only has one giant wheel in the middle. It's just a total blast, and I'll hop on that with my backpack and a charger, and I'll go to a Starbucks or a park just to declutter my mind.
What things in the React universe are you excited about right now?
React version 18 is coming out soon. The experimental version is out there, and it's fun to play with. I'm just really thrilled that it's no longer a concurrent mode but concurrent features that you can opt into. Cool things like that will enable React server components in the future. 
But the biggest thing I'm excited about is Remix. That's huge. It eliminates a lot of problems that are solved well other tools, but when I'm using Remix, I don't have those problems, so I don't need those clusters.
You already said that teaching is an integral part of the learning process, and you stand your word since you're also a full-time educator. What inspired you to enter this field?
I have been a teacher for as long as I can remember. I grew up in a church where you talk in front of your peers from a very young age, and my mom was an elementary school teacher, so teaching has just always been a part of me. 
I really just enjoy sharing what I'm learning with others. As far as teaching technical topics, I gave my first workshop when I was still a student at Brigham Young University. With my fellow, we taught how to use AngularJS, and I got Firebase to sponsor pizza so they would show up, and that was pretty fun.
Then I started teaching on the side at egghead.io right after I'd graduated. That was when I first got a paycheck for teaching. And I realized that teaching could be quite lucrative and support my family and me as a full-time endeavor. So I did it — I quit my job. I'm a very risk-averse person, so I'd done teaching as a side hustle for four years just to verify that I could make this work.
When TestingJavaScript was released, and I got that paycheck, I realized that I didn't need my PayPal salary anymore. I could just focus my daytime on teaching and give my evenings back to my family, which was a nice trait.


Apart from that, how has teaching impacted your career? 
Earlier I mentioned that pretty much all of my jobs came because I was perceived as an expert. After the first job, where I was an intern and then converted into full-time, I never applied to another. I worked for four different companies, and they wouldn't have recruited me if they didn't know who I was and what I was doing. My content is how they knew who I was — I just made it easy for them to find me. Teaching made that impact. It made my career. 
We talked about React and Remix. Are there any other open-source projects that you'd recommend keeping an eye on or contributing to?
I have some myself. React Testing Library is probably the biggest one that people are familiar with. And if React isn't your jam, then other framework versions of the testing library. 
React Query is also really popular. If you're using Remix, you don't need it, but if you're not, I strongly advise using React Query cause it's a stellar, fantastic library, and Tanner Linsley, the creator, is a stellar and fantastic person. 
What pieces of your work are you most proud of? 
Probably the biggest thing I've ever done is EpicReact.Dev. It has helped tens of thousands of people get really good at React, improve their careers and make the world a better place with the skills that they develop. My whole mission is to make the world a better place through quality software, and I feel like I've done that best with Epic React. 
There are things that I've built at other companies that are still in use, and I'm proud of those cause they've stood the test of time, at least these last few years. But of everything, I think Epic React has made the biggest impact.
***
Follow Kent on Twitter and listen to his favorite Spotify playlist

Los comerciantes de Shopify tienen un conjunto diverso de necesidades, y los desarrolladores tienen una oportunidad única para satisfacer esas necesidades construyendo aplicaciones. Construir una aplicación puede ser un trabajo duro, pero Shopify ha creado un conjunto de herramientas y recursos para ayudarte a construir una experiencia de aplicación sin problemas lo más rápido posible. Obtén experiencia práctica construyendo una aplicación integrada de Shopify utilizando el CLI de la aplicación Shopify, Polaris y Shopify App Bridge.Te mostraremos cómo crear una aplicación que acceda a la información de una tienda de desarrollo y pueda ejecutarse en tu entorno local.

Las API/Backends son difíciles y necesitamos websockets. Utilizarás VS Code como tu editor, Parcel.js, Chakra-ui, React, React Icons y Appwrite. Al final de este masterclass, tendrás los conocimientos para construir una aplicación en tiempo real utilizando Appwrite y sin necesidad de desarrollar una API. ¡Sigue los pasos y tendrás una increíble aplicación de chat para presumir!

En Shopify a gran escala, resolvemos algunos problemas bastante difíciles. En este masterclass, cinco oradores diferentes describirán algunos de los desafíos que hemos enfrentado y cómo los hemos superado.

Tabla de contenidos:
1 - El infame problema "N+1": Jonathan Baker - Vamos a hablar sobre qué es, por qué es un problema y cómo Shopify lo maneja a gran escala en varios APIs de GraphQL.
2 - Contextualizando APIs de GraphQL: Alex Ackerman - Cómo y por qué decidimos usar directivas. Compartiré qué son las directivas, qué directivas están disponibles de forma predeterminada y cómo crear directivas personalizadas.
3 - Consultas de GraphQL más rápidas para clientes móviles: Theo Ben Hassen - A medida que tu aplicación móvil crece, también lo harán tus consultas de GraphQL. En esta charla, repasaré diversas estrategias para hacer que tus consultas sean más rápidas y efectivas.
4 - Construyendo el producto del futuro hoy: Greg MacWilliam - Cómo Shopify adopta las características futuras en el código actual.
5 - Gestión efectiva de APIs grandes: Rebecca Friedman - Tenemos miles de desarrolladores en Shopify. Veamos cómo estamos asegurando la calidad y consistencia de nuestras APIs de GraphQL con tantos colaboradores.

La autenticación sin contraseña puede parecer compleja, pero es fácil de agregar a cualquier aplicación utilizando la herramienta adecuada.
Mejoraremos una aplicación JS de pila completa (backend Node.js + frontend Vanilla JS) para autenticar usuarios con contraseñas de un solo uso (correo electrónico) y OAuth, incluyendo:
- Autenticación de usuario: Gestión de interacciones de usuario, devolución de JWT de sesión / actualización- Gestión y validación de sesiones: Almacenamiento seguro de la sesión para solicitudes posteriores del cliente, validación / actualización de sesiones
Al final del masterclass, también abordaremos otro enfoque para la autenticación de código utilizando Flujos de Descope en el frontend (flujos de arrastrar y soltar), manteniendo solo la validación de sesión en el backend. Con esto, también mostraremos lo fácil que es habilitar la biometría y otros métodos de autenticación sin contraseña.

En este masterclass, veremos cómo crear una base de conocimientos utilizando Gatsby, un Framework generador de sitios estáticos que utiliza React y GraphQL, Contentful, un CMS sin cabeza para gestionar el contenido y desplegarlo en AWS S3.

Se te ha asignado la tarea de crear una función de edición de texto colaborativa dentro del producto de tu empresa. Algo similar a Notion o Google Docs.
CK 5 es un marco de trabajo y ecosistema rico en funciones listas para usar que se enfoca en una amplia gama de casos de uso. Ofrece una infraestructura en la nube para satisfacer las necesidades del sistema de colaboración en tiempo real. Durante esta masterclass, aprenderás cómo configurar e integrar CK 5. Repasaremos los conceptos básicos de cómo incrustar el editor en una página, desde la configuración hasta la habilitación de funciones de colaboración en tiempo real. Aprendizajes clave: cómo incrustar, configurar y ajustar CK 5 para que se adapte mejor a un sistema de edición de documentos que admita colaboración en tiempo real.
Tabla de contenidos:- Introducción al ecosistema de CK 5.- Introducción a una plantilla de proyecto similar a `Notion`.- Incrustar CK 5 en una página.- Configuración básica de CK 5.- Ajustar CK 5 para un caso de uso específico.- Habilitar funciones de edición en tiempo real.