Principal iOS Engineer, Block
Mobile Performance & Reliability
$290-435k
+ Equity subject to the terms of the applicable plans and policies
Financial services ecosystem
Job no longer available
Financial services ecosystem
1001+ employees
Job no longer available
$290-435k
+ Equity subject to the terms of the applicable plans and policies
1001+ employees
Company mission
To create better tools to help everyone access the economy.
Role
Who you are
- 15 or more years of professional software development experience
- Deep understanding of the iOS platform, Swift, and Objective-C
- Ability to break down complex projects into components or milestones that can easily be picked up by other engineers
- Skill to investigate and identify the root cause of an issue in an unfamiliar codebase
- Motivation to influence our engineering organization to level-up the reliability and performance of the mobile apps we ship
- Demonstrated collaboration with co-workers on cross-functional teams
- A strong sense of ownership
- Desire to understand and alleviate developer pain points
- Desire to facilitate adoption through high-quality documentation, tutorials, samples, and pairing
Desirable
- Experience building frameworks related to performance, reliability, observability, and analytics
- Experience building engineering tools or profilers related to improve performance and reliability
- Experience as a maintainer or contributor to Open Source projects
- Experience optimizing the performance of iOS applications
- Experience working in a large engineering organization (hundreds of mobile engineers)
What the job involves
- The Mobile Performance & Reliability team is responsible for guiding Square’s mobile engineering organization to deliver highly performant and reliable experiences to our sellers, while also improving Square’s ability to observe apps in the wild and respond to issues proactively
- As a Principal iOS Software Engineer on the Mobile Performance & Reliability team, you would join the foundational team responsible for driving mobile application quality across all of Square
- You would tackle challenges across our entire suite of apps and in some cases the entire iOS platform. You would work closely with the authors and maintainers of some of the most used open-source libraries in the iOS space
- Identify, scope, and lead complex, strategic projects with wide impact across the company
- Lead engineering designs with company-wide impact, ensuring these designs succeed in the long term
- Design highly available and resilient systems which can operate no matter the network or device conditions
- Collaborate with multiple stakeholders across the company including product, design, legal, support, and other engineering teams
- Provide mentorship, expertise and design reviews for engineering teams across Square
- Develop a strategic vision that influences the company’s overall engineering direction, decisions, and the prioritization of the projects on our roadmap
Our take
Block is a financial services technology company comprising of Square, Cash App, Spiral, TIDAL, and TBD. Its biggest brand, Square, offers hardware and software for small to medium-sized businesses enabling them to manage the entire payment lifecycle. It functions similarly to Shopify and Stripe, but has paired online payment processing with physical devices such as registers, payment terminals, and mobile card readers.
The business was originally founded as Square in 2009 by Jack Dorsey of Twitter fame. Already well-established with SMEs all over the globe, Square has significantly benefited from the increased demand for mobile payment systems. Its order management feature remains a go-to tool for small businesses that otherwise didn't have the proper infrastructure in place when demand for home delivery surged.
Square rebranded as Block in December 2021, with the Square brand name remaining in place for their seller business. The company has since come under fire for its security practices, facing lawsuits in relation to a major breach of CashApp user data, and in 2024 announced plans to reduce its workforce in order to cut costs. Despite these setbacks, there is every chance the business will move past this, though it may take some time to rebuild trust in its product.
Kirsty
Company Specialist at Welcome to the Jungle
Insights
19% employee growth in 12 months
Company
Company benefits
- Healthcare coverage (Medical, Vision and Dental insurance)
- Health Savings Account and Flexible Spending Account
- Retirement Plans including company match
- Employee Stock Purchase Program
- Wellness programs, including access to mental health, 1:1 financial planners, and a monthly wellness allowance
- Paid parental and caregiving leave
- Paid time off (including 12 paid holidays)
- Paid sick leave (1 hour per 26 hours worked (max 80 hours per calendar year to the extent legally permissible) for non-exempt employees and covered by our Flexible Time Off policy for exempt employees)
- Learning and Development resources
- Paid Life insurance, AD&D, and disability benefits
Company HQ
SoMa, San Francisco, CA
Leadership
Jack Dorsey
(CEO)Having studied at and dropped out of New York University, Jack founded Twitter in March 2006, where he has served as CEO since. He co-founded Square with Jim in February 2009, and has remained its CEO ever since.
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