Senior Software Engineer

Duolingo
Beijing, China
On-site

Who this role is best for

Strong fit for senior iOS engineers with Swift expertise who can mentor and lead technical direction, working in a collaborative, cross-functional environment in Beijing.

Best fit for

  • Senior iOS engineers with proven Swift production experience and leadership abilities in mentoring junior developers
    — “Mentor and set technical direction for junior engineers across the company
  • Candidates who are experienced in building clean, maintainable APIs and have a strong grasp of iOS development frameworks
    — “Experience designing clean and maintainable APIs
  • Individuals with a background in mobile application development, particularly for iPhone and iPad using Swift and Cocoa Touch
    — “Strong technical knowledge of iOS mobile application development for iPhone/iPad using Swift with Cocoa Touch and related frameworks

Things to consider

  • The role involves cross-functional collaboration, requiring adaptability and communication with diverse teams
    — “You'll work cross functionally with product, design, data science, machine learning, and ad operations
  • The compensation structure includes equity, which may be a consideration for candidates valuing long-term gains
    — “The offered salary is dependent upon several factors... base salary is supplemented by equity compensation

How to stand out

  • Highlight experience with multithreaded programming and performance optimization in iOS apps
    — “Experience with multithreaded programming
  • Emphasize your ability to write unit tests and maintain testable code in your portfolio or resume
    — “Experience writing unit tests and testable code
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · TeamLevel · Senior

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • develop and maintain iOS applications
  • collaborate with cross-functional teams
  • mentor junior engineers
Typical background
iOS developmentsoftware engineering

Skills & requirements

Required

Ios DevelopmentSwift ProgrammingNative Ios ApplicationsSoftware DesignUnit Testing

Preferred

Multithreaded ProgrammingIos SDK OptimizationClean API Design

Stack & domain

SwiftIosCocoa TouchMultithreaded ProgrammingUnit TestsIos SDK Performance ToolsLeadershipCollaborationProblem-solvingCommunicationSoftware EngineeringIos DevelopmentMobile Application Development

About the role

Original posting from Duolingo

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and that’s where you come in!

At Duolingo, you’ll join a team that cares about educating our users, experimenting with big ideas, making fact-based decisions, and finding innovative solutions to complex problems. You’ll have limitless learning opportunities and daily collaborations with world-class minds — while doing work that’s both meaningful and fun.

Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. 

Read our blog to learn more.

About the role...

The Monetization Pillar focuses on Duolingo’s key business drivers—subscriptions, ads, and in-app purchases. Our goal is to build the best premium experiences for our learners while ensuring the sustainability and success of our business model. As a senior iOS Engineer, you will play an instrumental role in the strategic direction of Duolingo by developing and refining the methods that make our monetization efforts more effective and efficient. You'll work cross functionally with product, design, data science, machine learning, and ad operations.

🧠  You will...

Collaborate on software projects with product design and backend aspects

Develop, release, and maintain native iOS applications, primarily in Swift

Mentor and set technical direction for junior engineers across the company

✅  You have...

A Bachelor’s degree in Computer Science or a related technical field

A solid foundation in computer science with strong competencies in data structures, algorithms, and software design

Programming experience in Swift

⭐  Exceptional candidates will have...

Strong proficiency in Swift, with proven ability to build and maintain production-level applications

Strong technical knowledge of iOS mobile application development for iPhone/iPad using Swift with Cocoa Touch and related frameworks

Experience designing clean and maintainable APIs

Experience with multithreaded programming

Experience writing unit tests and testable code

Knowledge of iOS SDK performance tools and optimization techniques

The offered salary is dependent upon several factors, including work experience, skills, and internal peer comparisons. The posted range is subject to change in the future. For this role, base salary is supplemented by equity compensation. We encourage you to talk with your recruiter for more information related to compensation for this role!

Salary Range: ¥804,949—¥1,088,971 CNYBenefits: Take a peek at how we care for our employees' holistic well-being with our benefits here.

Job Alerts: Sign up for job alerts here.

Accommodations: We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation, please contact accommodations@duolingo.com.

Equal Employment Opportunity: Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.

Fraud Warning: Unfortunately, there is a rise in scammers pretending to be real Duolingo employees. Duolingo and our employees will never ask for your Social Security number, bank details, or passport info, and we’ll never ask you to deposit a check, purchase equipment, or exchange money during the interview process. Real Duolingo employees always use an email that ends in @duolingo.com or @recruiting.duolingo.com. Stay alert and double-check these details before sharing any information.

By applying for this position your data will be processed as per the Duolingo Applicant Privacy Notice.

Source: Duolingo careers

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