Senior Software Engineer, Mobile

Hatch IT

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Somerville, MA OR Washington, DC. hybrid Until 8/21/2026 First posted February 21, 2026 Last posted February 21, 2026

Job description

hatch I.T. is partnering with VIA to find a Senior Software Engineer, Cryptography. See details below:

About the Role:

An impressive mission requires an equally impressive Senior Software Engineer, Mobile

As a Senior Software Developer, specializing in mobile development, you will move beyond simple coding to thoughtful design. You will build a highly secure mobile backbone that delivers their mission to the world. They are looking for an innovator who is motivated to solve the complex challenge of balancing world-class security with flawless, intuitive user experiences. If you thrive in tackling inherent performance and security challenges in high-stakes mobile development, we’ve reserved a place for you.

Responsibilities:

Drive the end-to-end development, testing, and deployment of high-quality native applications for iOS (Swift) and Android
Maintain application performance, troubleshoot issues, and ensure broad compatibility across devices and OS versions
Architect and implement features focused on security and privacy, utilizing native mobile security frameworks
Implement secure data handling and storage, including the use of Secure Enclaves (or equivalent technologies)
Apply basic cryptography principles for data protection and secure communication within the mobile environment
Integrate VIA's backend microservices and secure APIs into the mobile application logic
Serve as a subject matter expert and provide technical leadership in mobile application development, ensuring VIA’s solutions meet the highest standards
Clearly articulate complex software designs, architectural choices, and technical processes to diverse audiences, including technical peers and non-technical stakeholders
Collaborate effectively with cross-functional teams (UI/UX designers and backend developers) to ensure seamless, performant, and reliable application functionality
Participate in defining and upholding mobile development best practices, code reviews, and automated testing

Requirements:

Bachelor’s degree or higher in computer science, engineering, or a related field or equivalent experience
5+ years of professional experience developing and shipping native mobile applications
Proven proficiency in both native iOS development (Swift) and native Android development
Direct experience with native mobile security features, including Secure Enclaves (or equivalent secure storage mechanisms)
Working knowledge of basic cryptography principles and their application in mobile security
Strong experience integrating mobile applications with RESTful APIs and handling asynchronous data streams
Solid understanding of mobile UI/UX principles, architectural patterns (e.g., MVVM, MVI, etc.), and performance optimization
Experience with digital wallets, biometric authentication (Face ID/Touch ID), or equivalent credential management systems is a significant plus
Familiarity with CI/CD processes for mobile application deployment (e.g., Fastlane, Jenkins, or similar)
Proficiency in TypeScript for building and maintaining robust mobile applications

Compensation (from employer):
150000–200000 USD per year

About this role

Summary

Develop secure, performant native mobile applications for iOS and Android with cryptography focus.

Job title

Senior Software Engineer, Mobile

Experience level

5+ years

Industry

software

Location requirements

On-site in Somerville, MA or Washington, DC, remote not specified.

Salary

150000–200000 USD per year

Management role

Skills & keywords

Required skills

SwiftAndroidSecure EnclavescryptographyRESTful APIsTypeScript

Preferred skills

biometric authenticationCI/CDperformance optimizationUI/UX principles

Specializations

mobile developmentsecuritycryptographyiOSAndroid

Locations

Structured locations inferred from the posting.

Somerville, MA, USA

On-site City

Washington, DC, USA

On-site City