Mobile Application Developer at TSR Consulting Services, Inc. Pleasanton, CA

TSR Consulting Services, Inc.; Pleasanton (CA); On-site; USD 140,000 - 150,000; Full time

Job summary

TSR Consulting Services, Inc. in Pleasanton, CA is seeking a strong iOS native mobile app developer to implement new user interfaces and features while maintaining high-quality code and tests.

The role centers on UI work, performance, and collaboration with back‑end developers and designers for well‑architected solutions. The position is on-site for a long-term contract with a pay rate of $70 per hour on a W‑2 basis.

Qualifications

• Native iOS development with Swift and Objective-C.
• Modern Swift development patterns: UI, networking, delegation, observer, MVC, MVVM.
• Strong understanding of SOLID principles of object‑oriented design.
• Hands‑on experience with instruments for application profiling.
• Familiarity with GitHub, Xcode commands and enterprise application distribution process.
• Comfortable working with legacy Objective‑C codebases.
• Experience with XCTest and XCUITest framework.
• Proven track record of integrating with hardware devices and SDKs.
• Familiarity with RESTful APIs.
• Experience with Core Data and third‑party library integration with CocoaPods.

Responsibilities

• Develop new features on existing iOS native mobile application.
• Implement UI screens per UX specification.
• Write unit tests and UI automation.
• Ensure the best performance and user experience of the application.
• Fix bugs and performance problems.
• Write clean, readable, and testable code.
• Cooperate with back‑end developers, designers, and the rest of the team to deliver well‑architected and high‑quality solutions.

Skills

Swift

Objective-C

MVVM

MVC

SOLID principles

Xcode

XCTest

XCUITest

RESTful APIs

Core Data

CocoaPods

UI testing

Git

Tools

GitHub

Xcode

Instruments

CocoaPods

Job description

Mobile Application Developer – iOS Native – TSR Consulting Services, Inc.

Pleasanton, California – Long‑term contract, On‑site position, Pay $70 on w‑2.

We are looking for a strong iOS native mobile app developer who welcomes both engineering and maintenance tasks. The primary focus will be to implement new user interfaces and features together with automated unit and integration tests. You will be working with our candid and collaborative team, where your knowledge and advice about application architecture and the newest mobile technologies will be highly appreciated. The code you write will need to be cleanly organized and of the highest quality. You'll also help ensure solid application performance and an excellent user experience.

Responsibilities

• Develop new features on existing iOS native mobile application.
• Implement UI screens per UX specification.
• Write unit tests and UI automation.
• Ensure the best performance and user experience of the application.
• Fix bugs and performance problems.
• Write clean, readable, and testable code.
• Cooperate with back‑end developers, designers, and the rest of the team to deliver well‑architected and high‑quality solutions.

Skills

• Deep knowledge of native iOS mobile app development with Swift and Objective‑C.
• Solid grasp of modern Swift development patterns (UI, networking, delegation, observer, MVC, MVVM).
• Strong understanding of SOLID principles of object‑oriented design.
• Hands‑on experience with instruments for application profiling.
• Familiarity with GitHub, Xcode commands and enterprise application distribution process.
• Comfortable working with legacy Objective‑C codebases.
• Experience with XCTest and XCUITest framework.
• Proven track record of integrating with hardware devices and SDKs.
• Familiarity with RESTful APIs.
• Experience with Core Data and third‑party library integration with CocoaPods.