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Chris Sumner Email & Phone Number

Senior iOS Engineer at Square
Location: Wilmington, North Carolina, United States 6 work roles 1 school
1 work email found @squareup.com 1 phone found area 910 LinkedIn matched
✓ Verified August 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 1 phone

Work email c****@squareup.com
Direct phone (910) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Senior iOS Engineer
Location
Wilmington, North Carolina, United States

Who is Chris Sumner? Overview

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Quick answer

Chris Sumner is listed as Senior iOS Engineer at Square, based in Wilmington, North Carolina, United States. AeroLeads shows a work email signal at squareup.com, phone signal with area code 910, and a matched LinkedIn profile for Chris Sumner.

Chris Sumner previously worked as Head of Mobile Engineering at New Potato Technologies and Principal Software Engineer at New Potato Technologies. Chris Sumner holds Bs, Computer Science from University Of North Carolina Wilmington.

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Email format at Square

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{first_initial}{last}@squareup.com
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AeroLeads found 1 current-domain work email signal for Chris Sumner. Compare company email patterns before reaching out.

Profile bio

About Chris Sumner

I am a detail oriented developer with 20+ years of software development experience spanning mobile, embedded, and PC platforms, with significant involvement in every stage of the system life cycle. For last 12+ years I've been specializing in iOS app development.Languages: Objective-C, Swift, C/C++, Java, KotlinSoftware & Technologies:iOS, Mac OSX, Windows, LinuxXCode, Android Studio Eclipse IDE, Microsoft Visual Studio, CodeWarrior, IAR SystemsSVN, Git, BitbucketJira, YouTrack, Gradle, Cocoapods, GDB, LLDB, GDB, VMwareSQLite, SQLCipherCocoa Touch, UIKit, Core Data, Core Bluetooth, Core Audio, Core Graphics, Core Animation, Core Image, Core Location, External Accessory, SpriteKit, SceneKit, VideoToolbox, Social, HealthKit, Core Foundation, Swift Package Manager, etc.Alamofire/AFNetworking, RxSwift, CryptoSwiftAWS: Mobile Client, Cognito, IoT (MQTT)Firebase: Analytics, Remote Config, Realtime Database, Cloud Storage, Distribution, CrashlyticsMicrocontrollers: TI MSP430, TI CC264X, Coldfire, PNX8550, SDA6000, MC68000

Listed skills include Mobile Devices, C++, Android, Product Management, and 9 others.

Current workplace

Chris Sumner's current company

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Square
Square
Senior iOS Engineer
AeroLeads page
6 roles

Chris Sumner work experience

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Senior Ios Engineer

Current

San Francisco, Ca, Us

Jun 2022 - Present

Head Of Mobile Engineering

Wilmington, Nc, Us

As Head of Mobile at New Potato, in addition to iOS + Android coding responsibilities, I work with our service customers on project scope, project management, generating level of effort/time estimates, client quotes, and scheduling deliverables. I am involved in every step of the product life cycle starting with concept, working directly with clients to create software architecture design, implementation plan, executing that plan as a developer, testing, and when necessary providing support for end users. I manage a team of iOS and Android developers, serving as a mentor to junior programmers, including code reviews and task management. I am actively developing and managing of numerous projects in flight simultaneously.

Jan 2020 - Jun 2022

Principal Software Engineer

Wilmington, Nc, Us

New Potato specializes in product development, with a focus in app-enabled accessories for Apple and Android devices. NPT has created over 40 successful products in the consumer and industrial space. I have been lead developer for all iOS applications and made significant contributions to the both the firmware of their accessory counterparts, as well as the Android companion apps. Products include both in-house app release under the NPT brand and service-based projects released by other companies. I have 15+ start to finish apps in the App Store and several other 3rd party customer apps still in development, or releasing in Enterprise environments.As part of NPT's service business, I took ownership of all app design for both iOS and Android, going from concept to App Stores. Also took over maintenance of numerous inherited code bases from other external developers.Expert in Bluetooth Low Energy to discover, connect, read, and write data to Bluetooth devices. NPT's primary focus building connected products. I designed and implemented custom communications protocols for all connected accessories using BLE, I2C, WiFi, UART, etc.

Jul 2012 - Jan 2020

Senior Software Developer

Wilmington, Nc, Us

Our team was responsible for shipping over 100 finished consumer products. I implemented firmware and software for connected accessories on mobile devices and embedded PCB’s. Developed app-enabled accessories using Bluetooth Low Energy and MFi (External Accessory). Developed firmware with iAP authentication support, and integrated firmware with Apple authentication coprocessors. Implemented firmware for media docks interfacing with iPod and iPhone, enabling audio/video playback.Began developing iOS applications with the release of iOS 3, which was the first iOS system that allowed apps to communicate to external devices via External Accessory.

Jul 2006 - Jul 2012

Senior Software Engineer

Motion Media Technologies, Inc / Scotty Technologies Of The Americas, Inc

Developed embedded firmware for videoconferencing products in Telehealth, security & surveillance, and person-to-person applications. Developed Windows applications to enhance the products, and gained valuable experience integrating these products into existing customer solutions. Highlights include:- Lead software engineer for the Telehealth branch. - Designed, implemented, and deployed a video-enabled call center solution in the Netherlands for elderly patients.- Development and maintenance of multiple embedded system devices, and deployment of firmware updates to products in the field.- Experienced developing and maintaining multithreaded and real-time applications.Designed and implemented CareStation for Windows, a PC-based application that assisted caregivers in recording, storing, and reporting clinical data for remote clients, over a video-enabled link. Designed to record, store, and report important data such as admission and daily focus information, vital signs, intake and output measurements, progress notes, and flowsheets.

Jul 2003 - Jun 2006

Software Enginner

Motion Media Technologies, Inc / Scotty Technologies Of The Americas, Inc

I developed and maintained embedded systems firmware for a suite of videoconferencing products and applications.Designed and created camera drivers for security applications, enabling remove movement via video-enabled connections. Integrated multiple external medical devices (blood pressure monitors, SpO2 monitor, temperature, vitals, ECG, etc) via RS-232 links, and enabled remote communication of those devices.

Jul 2001 - Jun 2003
1 education record

Chris Sumner education

  • University Of North Carolina Wilmington
    University Of North Carolina Wilmington
    Computer Science
FAQ

Frequently asked questions about Chris Sumner

Quick answers generated from the profile data available on this page.

What company does Chris Sumner work for?

Chris Sumner works for Square.

What is Chris Sumner's role at Square?

Chris Sumner is listed as Senior iOS Engineer at Square.

What is Chris Sumner's email address?

AeroLeads has found 1 work email signal at @squareup.com for Chris Sumner at Square.

What is Chris Sumner's phone number?

AeroLeads has found 1 phone signal(s) with area code 910 for Chris Sumner at Square.

Where is Chris Sumner based?

Chris Sumner is based in Wilmington, North Carolina, United States while working with Square.

What companies has Chris Sumner worked for?

Chris Sumner has worked for Square, New Potato Technologies, and Motion Media Technologies, Inc / Scotty Technologies Of The Americas, Inc.

How can I contact Chris Sumner?

You can use AeroLeads to view verified contact signals for Chris Sumner at Square, including work email, phone, and LinkedIn data when available.

What schools did Chris Sumner attend?

Chris Sumner holds Bs, Computer Science from University Of North Carolina Wilmington.

What skills is Chris Sumner known for?

Chris Sumner is listed with skills including Mobile Devices, C++, Android, Product Management, Software Engineering, Mobile Applications, Cross Functional Team Leadership, and Product Development.

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