Twitter is what’s happening and what people are talking about right now. For us, life's not about a job, it's about purpose. We believe real change starts with conversation. Here, your voice matters. Come as you are and together we'll do what's right (not what's easy) to serve the public conversation.

Our team loves using the latest mobile technologies for all features of twitter apps, which includes timelines, tweets, GIF search and more. We've recently delivered the new Home Timeline, Moments, GIF Search, Polls, Highlights, Group DM’s and we're working on a brand new mobile experience. On the mobile team you have the opportunity to have significant ownership and impact over major user-facing features that hundreds of millions of people love to use.

We have strong customer focus - we connect directly with customers who are using our products, and use their guidance to make meaningful improvements. We ship - we are huge fans of build/measure/learn with a weekly cadence. Team-centric development - we are strong believers of limiting our work-in-progress and bias towards working collaboratively. We value software quality and technical growth - our code runs on millions of devices every single day, so it needs to be stable, performant, and trustworthy.

What You'll Do:

As part of the team you'll be responsible for using your creativity, excellent problem solving and technical skills to enable Twitter for iOS to reach every person on the planet. You’ll instrument, measure, optimize and build high quality architectures and code in feature areas such as Timelines, Search, Moments, DMs, and more. As an iOS engineer, you will work closely with designers, user researchers, data scientists, product managers, and the engineers that support the developer platform and infrastructure. You will use your passion and in-depth knowledge of all things iOS to craft the client components and features that will shape the future of Twitter for iOS. 

The teams hiring iOS Engineers are in the following areas:

• Home Timeline - high-impact team that is one of the largest drivers of usage and time spent in the app. 

• Health Client - Make Twitter safer for our customers and ensure the information shared is of the highest quality. This includes developing innovative solutions around misinformation, civic integrity, toxicity, abuse, spam, privacy and more.

• Explore Client - Define how all of our customers locate new content and see the heartbeat of Twitter in real-time. 

Who You Are:

You’re an experienced mobile engineer looking to make Twitter for iOS one of the best mobile experiences out there. You're someone who excels at user-centric product development and has a passion for making beautiful, smooth, delightful mobile experiences. 

If this sounds like you, you probably have:

• Top-notch programming skills in Objective-C or Swift

• Previous experience developing mobile applications (on iOS)

• Experience implementing new features and optimizing existing ones

• Technical depth that allows you to rapidly fix bugs and solve problems

• Experience working closely across a variety of teams including product management, interaction designers, and engineers

• A detailed approach to writing tests and quality assurance

• Advocacy of the principles of accessibility and the ability to build interfaces accessible to users with disabilities

• Knowledge of core CS concepts such as: common data structures and algorithms, profiling/optimization

• BS or MS in Computer Science or equivalent work experience

• 6+ years experience developing mobile applications (on iOS with Objective-C and Swift) 

A few other things we value:

• Challenge - We solve some of the industry’s hardest problems. Come to be challenged, learn, and thrive as an engineer.
• Diversity - Diversity makes us a better organization and team. We value diverse backgrounds, ideas, and experiences.
• Work, Life, Balance - We work hard, but we believe with hard work should come balance.
• Collaboration - There’s that saying, “If you want to go fast, go alone. If you want to go far, go together.” We want to go far.

We are committed to an inclusive and diverse Twitter. Twitter is an equal opportunity employer. We do not discriminate based on race, ethnicity, color, ancestry, national origin, religion, sex, sexual orientation, gender identity, age, disability, veteran, genetic information, marital status or any other legally protected status.

San Francisco applicants: Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records