Synergis · 9 hours ago
Senior iOS Developer
NYC Metro Area
Contract
Hybrid
Senior Level
$65/hr - $75/hr
7+ years expSynergis is a workforce solutions partner serving businesses and job seekers nationwide. They are seeking a Senior iOS Developer to work in a team-oriented, agile environment, focusing on implementing new features, correcting defects, and mentoring others in algorithm development.
Information TechnologyStaffing Agency
Hiring Manager
Christy Cifreo
Responsibilities
Work in a team-oriented, agile environment
Evaluate the length of effort to implement requirements
Provide alternative solutions to lower implementation or maintenance costs when appropriate
Identify performance bottlenecks or resource contention issues and define solutions
Correct defects in the existing product
Implement new features or improvements to existing or upcoming products
Create efficient, performant algorithms
Mentor and coach others in algorithm development
Collaborate with Quality Assurance and Testing to deliver well-tested applications
Proactively raise issues early in the development process
Qualification
Required
BS in Computer Science or Computer Engineering
7 or more years of general programming experience
At least 3 years of experience specific to iOS
Expert in using Apple's XCode
Expert in using Swift and SwiftUI
Experience in using Objective-C, C++, or C is a plus
Expert in using standard debugging techniques such as logging, LLDB, and Instruments
Significant experience with Apple frameworks including Foundation, WebKit, Combine, and CoreLocation
Understanding of Multi-threading (GCD, OperationQueue, etc), Codable, and StoreKit is a plus
Understanding of common design patterns such as MVVM, VIPER, MVP
Experience with REST APIs from an iOS app
Experience with package management tools like CocoaPods, PackageManager, or Carthage
Experience in unit testing with XCTest
Strong understanding of iOS memory architectures, including MRR and ARC
Preferred
Experience in using AI tools such as Copilot, Claude, Cursor, etc
Experience with WatchOS, TVOS, and WidgetKit
Knowledge of mobile development challenges such as battery, radio usage, CPU, GPU, and memory constraints
Benefits
Medical
Dental
Vision
Disability
Life insurance
401k
Commuter benefits
Company
Synergis
Synergis is a staffing and recruiting company specializing in information technology staffing services.
201-500 employees
H1B Sponsorship
Synergis has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2024 (2)
2023 (2)
2022 (7)
2021 (6)
2020 (12)
Funding
Current Stage
Growth StageLeadership Team
Leona Rapelye
Vice President - Human Resources
Recent News
TecHR Series
2023-07-11
Company data provided by crunchbase