Purpose: What I Learned from Stepping Down as Team Lead Twice

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.

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.

Come and learn how you can supercharge your modern and secure applications using GraphQL and Javascript. In this workshop we will build a GraphQL API and we will demonstrate the benefits of the query language for APIs and what use cases that are fit for it. Basic Javascript knowledge required.

Shopify merchants have a diverse set of needs, and developers have a unique opportunity to meet those needs building apps. Building an app can be tough work but Shopify has created a set of tools and resources to help you build out a seamless app experience as quickly as possible. Get hands on experience building an embedded Shopify app using the Shopify App CLI, Polaris and Shopify App Bridge.We’ll show you how to create an app that accesses information from a development store and can run in your local environment.

API's/Backends are difficult and we need websockets. You will be using VS Code as your editor, Parcel.js, Chakra-ui, React, React Icons, and Appwrite. By the end of this workshop, you will have the knowledge to build a real-time app using Appwrite and zero API development. Follow along and you'll have an awesome chat app to show off!

At Shopify scale, we solve some pretty hard problems. In this workshop, five different speakers will outline some of the challenges we’ve faced, and how we’ve overcome them.

Table of contents:
1 - The infamous "N+1" problem: Jonathan Baker - Let's talk about what it is, why it is a problem, and how Shopify handles it at scale across several GraphQL APIs.
2 - Contextualizing GraphQL APIs: Alex Ackerman - How and why we decided to use directives. I’ll share what directives are, which directives are available out of the box, and how to create custom directives.
3 - Faster GraphQL queries for mobile clients: Theo Ben Hassen - As your mobile app grows, so will your GraphQL queries. In this talk, I will go over diverse strategies to make your queries faster and more effective.
4 - Building tomorrow’s product today: Greg MacWilliam - How Shopify adopts future features in today’s code.
5 - Managing large APIs effectively: Rebecca Friedman - We have thousands of developers at Shopify. Let’s take a look at how we’re ensuring the quality and consistency of our GraphQL APIs with so many contributors.

Passwordless authentication may seem complex, but it is simple to add it to any app using the right tool.
We will enhance a full-stack JS application (Node.js backend + Vanilla JS frontend) to authenticate users with One Time Passwords (email) and OAuth, including:
- User authentication – Managing user interactions, returning session / refresh JWTs- Session management and validation – Storing the session securely for subsequent client requests, validating / refreshing sessions
At the end of the workshop, we will also touch on another approach to code authentication using frontend Descope Flows (drag-and-drop workflows), while keeping only session validation in the backend. With this, we will also show how easy it is to enable biometrics and other passwordless authentication methods.

In this workshop, we will go over how to build a knowledge base using Gatsby, a static site generator Framework that uses React and graphQL, Contentful, a Headless CMS to drive the content and deploy it to AWS S3.