Be a key member of our Product Engineering organization, developing our next-generation macOS client application and System Extension that securely intercepts and routes DNS/network traffic.
Design, build, and maintain a NetworkExtension-based application using Apple’s NEDNSProxyProvider and/or NEFilter* frameworks to filter and control DNS queries.
Collaborate closely with QA and product teams to define requirements and acceptance criteria for new features.
Deliver real business value to our customer base
Expand your knowledge on all technologies within our ecosystem

Requirements

5+ years of experience developing and maintaining macOS applications.
Strong experience with System Extensions (SEXT) and NetworkExtension frameworks (NEDNSProxyProvider, NEFilterControlProvider, etc.).
Deep understanding of DNS fundamentals, including TCP/IP, DoH, and DoT protocols.
Proficiency in Swift and Objective-C, with additional experience in Go, C, or C++ preferred.
Familiarity with macOS development tools (Xcode, Instruments, lldb, tcpdump, Wireshark).
Experience with code signing, entitlements, provisioning profiles, and notarization.
Knowledge of MDM platforms (Jamf, Mosyle) and deployment best practices in enterprise environments.
Experience with Git, modern CI/CD pipelines, and automated testing frameworks.
Strong communication skills and comfort working in distributed, asynchronous teams.
Availability to work hours overlapping 9am–5pm EST, Monday–Friday.

Benefits

Pathway to promotion to additional organizational positions and responsibilities based upon results and performance, not just time in the chair. You help us grow, and we will help you grow.
Passionate and intelligent colleagues who work hard and have a good time doing it
Paid company-wide week off at the end of each year
Flexible Vacation Policy
Awesome company swag
Full medical, dental, and vision benefits for US, UK, and Canada-based employees
Full short-term disability and life benefits; available long-term disability
Retirement savings account options with vested company matching for qualifying employees
In-person annual gatherings. Last time we all spent a week on a beach in Cancun!

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

macOS application developmentSystem ExtensionsNetworkExtension frameworksDNS fundamentalsTCP/IPDoHDoTSwiftObjective-CGit

strong communication skillscollaborationworking in distributed teams