DNSFilter

DNS security that identifies threats 7 days before competitors.

Senior macOS Developer

Software EngineerSoftware EngineerFull TimeRemoteTeam 51-200Since 2016H1B No SponsorCompany SiteLinkedIn

Location

Florida

Posted

61 days ago

Salary

$140K - $160K / year

Bachelor Degree5 yrs expEnglishDNSJamfMac OSObjective CSwiftTcp/ipGo

Job Description

• 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

Job 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!

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