Senior iOS Engineer at Yello

| Chicago
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About The Role

Yello is looking for a motivated, detail-oriented individual to contribute to the next generation of our mobile applications as a Senior iOS Engineer. The ideal candidate is someone who is passionate about building quality applications, is interested in working with native code using the latest version of Swift, and is excited by the idea of developing features as part of a team. This individual will work with members of our Mobile Group to implement new functionality and will utilize modern software design patterns and development best practices. 

How You'll Make An Impact

  • Design, develop, and maintain high-quality features across our suite of native iOS mobile applications
  • Collaborate with other Mobile Group engineers on innovative solutions to challenging problems
  • Work with our Product team to help guide the overall direction and technical details of upcoming features
  • Ensure the quality of new features by contributing to our automated unit and UI test suites
  • Participate in code reviews to provide and receive constructive feedback on code that is in development 
  • Diagnose the root cause of bugs as they are reported and quickly identify an appropriate fix 
  • Engage in knowledge sharing and professional development with engineers both within and outside of Mobile Group

What We're Looking For

  • 5 years experience of developing mobile applications
  • At least 2 years experience of developing iOS applications in Xcode using Swift, either in a professional environment or on a large-scale project
  • Bachelor’s Degree in Computer Science or a related field, or equivalent experience
  • Excellent object-oriented coding skills and an understanding of common object-oriented design patterns 
  • Strong understanding of the latest version of the Swift programming language 
  • Comfortable with Generics, Protocols and Grand Central Dispatch (GCD)
  • Experienced with using advanced features in Xcode and the iOS simulators  
  • Knowledge of iOS automated unit testing and UI testing frameworks
  • Experience with CI, build process and automating releases to the App Store
  • Experience with git and modern source control best practices
  • Familiarity with REST API technologies and HTTP
  • Able to identify performance issues and how to fix them
  • Strong analytical skills and attention to detail
  • Excellent written and verbal communication skills
  • Experience with software development processes e.g. Agile, CI
  • Eagerness to learn new technologies and leverage advanced development tools 

Additional Plusses

  • Experience working in an Agile environment (Scrum, sprints, planning meetings)
  • Understanding of Jenkins, Fastlane
  • Experience with Earl Gray or other UI Testing framework
  • Experienced with Dependency Injection and creating Unit Tests
  • Comfortable with CoreData
  • Experience with Realm
  • Familiarity with the Objective-C programming language 
  • Experience with GraphQL
  • Experience with OAuth
  • Strong eye for Design, UX, UI
  • Training other Engineers in iOS

Additional Information

We are the trailblazers in our space and we continually strive to learn and grow, but there is always time to celebrate a colleague's birthday or a recent success. We dress casually, have one of the best views in the city and the whole team sports Apple laptops. Our CEO Jason Weingarten and President Dan Bartfield always have their office doors open. And with opportunities for professional advancement, medical, dental and vision insurance, and a 401K match – Yello has you covered.

  • Yello is an Equal Opportunity Employer. All applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.
  • Candidates local to Chicago are preferred.
  • You must be authorized to work in the United States.
  • Must be able to sit or stand for continuous periods of time
  • This role frequently communicates/interacts with individuals, must have strong written and oral communication skills
  • Yello reserves the right to assign or reassign the responsibilities and requirements to this job at any time
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Technology we use

  • Engineering
  • Product
  • Sales & Marketing
    • JavascriptLanguages
    • RubyLanguages
    • SqlLanguages
    • SwiftLanguages
    • ReactLibraries
    • ReduxLibraries
    • Ruby on RailsFrameworks
    • MySQLDatabases
    • PostgreSQLDatabases
    • RedisDatabases
    • ElasticsearchDatabases
    • Google AnalyticsAnalytics
    • MixpanelAnalytics
    • FigmaDesign
    • Aha!Management
    • ConfluenceManagement
    • JIRAManagement
    • WrikeManagement
    • WordpressCMS
    • SalesforceCRM
    • MarketoLead Gen


We're located in the Loop, a block from the Art Institute and Millennium Park. Our office offers panoramic 360 degree views of Chicago.

What are Yello Perks + Benefits

Yello Benefits Overview

We've got you covered!

Volunteer in local community
Partners with Nonprofits
Eat lunch together
Intracompany committees
Yello has a number of committees and groups including the Flair committee as well as [email protected] and [email protected] (to name a few)
Open door policy
Open office floor plan
Health Insurance & Wellness Benefits
Flexible Spending Account (FSA)
Disability Insurance
Company sponsored short-term disability insurance covers 100% of annual salary for up to 13 weeks.
Dental Benefits
Vision Benefits
Health Insurance Benefits
Life Insurance
Company sponsored life insurance is equal to 1 times an employee's annual salary.
Wellness Programs
Retirement & Stock Options Benefits
401(K) Matching
Yello provides employees with a 401(k) matching plan managed by John Hancock. We match 3% of contributions with a 4-year vesting schedule.
Company Equity
Yello offers equity to employees at their 1 year anniversary.
Performance Bonus
Yello's performance bonus is an annual bonus of up to 10% of an employee's base salary. Payout is based on company and individual performance.
Match charitable contributions
While we don't match yet, we value giving back to causes that create a positive social impact. Through Percent Pledge, we help employees seamlessly give monthly to their favorite causes
Child Care & Parental Leave Benefits
Flexible Work Schedule
Family Medical Leave
Vacation & Time Off Benefits
Unlimited Vacation Policy
Generous PTO
Paid Holidays
Paid Sick Days
Perks & Discounts
Beer on Tap
Casual Dress
Commuter Benefits
Company Outings
Stocked Kitchen
Some Meals Provided
Happy Hours
Recreational Clubs
Fitness Subsidies
Professional Development Benefits
Job Training & Conferences
Yello offers employees professional development opportunities like the ability to attend job-related conferences and seminars.
Tuition Reimbursement
Lunch and learns
Yello hosts lunch and learn meetings twice per month.
Cross functional training encouraged
Promote from within
Time allotted for learning
Yello has a 'Learning Day' every 2 weeks on Friday to allow employees to set aside half a day for learning of any kind.

Additional Perks + Benefits

Yello sponsors office sports leagues and offers discounted memberships to Chicago Athletic Clubs. • Yello is dedicated to supporting career progression through professional development opportunities, mentorship and continued education • Yello offers the benefit of a student loan repayment plan and a 529 plan through BenefitEd with an annual company match to help you or your family continue your financial health. Yello offers healthy catered lunches each week and 2 fully stocked kitchens with fresh fruit and snacks to keep you nourished.

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