[Remote] Senior Quality Engineer (Windows & macOS endpoints)

DNSFilter
Washington, US
Remote

Job Description

Note: The job is a remote job and is open to candidates in USA. DNSFilter is a rapidly growing company dedicated to creating a safer internet for businesses and organizations worldwide. They are seeking a Senior Quality Engineer experienced in risk-based context-driven testing to help build and evolve their roaming client software across multiple OS platforms.

Responsibilities

  • Study and learn the product and integration points to understand and identify product risks holistically
  • Identify and work on a variety of challenging and highly complex problems
  • Work as a scientist to experiment/test, validate assumptions, and connect the dots to reach a conclusion
  • Independently plan, estimate, and deliver moderate to large solutions
  • Define initial risks in working on large projects
  • Test new and existing features from early-stage code through to E2E implementation
  • Triage, troubleshoot, and debug issues found internally, or by our users on their endpoint machines
  • Effectively write concise, actionable bug reports and supporting documentation
  • Speak knowledgeably about testing activities, status, and risk

Skills

  • 5+ years of experience with Software Testing applications running on customer endpoints (different flavours of OS: macOS, Windows, mobile)
  • Experience with manual E2E testing of network-based apps, especially VPNs (e.g., DNS, protocols, throttling, packet loss)
  • Strong knowledge of L3 to L7 networking technologies such as IP, TCP, UDP, DNS, proxying, routing, and switching
  • Experience with one or more Mobile Device Management Platforms (MDMs) (e.g., Intune, Jamf) and/or RMM tools
  • Strong knowledge and understanding of macOS, Windows & mobile clients (iOS, iPadOS, Android) platforms, their internals & real-world enterprise-level implementation
  • Proficiency with running traffic captures (Wireshark), gathering logs, & preparing data for reporting
  • A talent for analysis, communication, interpretation, and problem-solving
  • Knowledge and experience in all aspects of SDLC as it relates to quality
  • Experience working remotely under minimal supervision
  • The ability to keep work 8:00 AM - 5:00 PM EST M-F
  • Can work a hybrid office position for our Westchase, Florida office
  • Experience developing and maintaining scripts (PowerShell, Python, Shell)
  • Experience testing & debugging on-prem, hybrid & cloud-based infrastructure (e.g., AD DS, LDAP, Azure, Entra)
  • Experience setting up & maintaining enterprise-level test labs
  • Rapid Software Testing

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 the Dominican Republic!

Company Overview

  • DNSFilter provides security via DNS that protects over 4M end users from online security threats using artificial intelligence. It was founded in 2015, and is headquartered in Washington, District of Columbia, USA, with a workforce of 51-200 employees. Its website is https://dnsfilter.com.

Skills & Requirements

Technical Skills

WindowsMacosMobile clientsWiresharkPowershellPythonShellAd dsLdapAzureEntraAnalysisCommunicationInterpretationProblem-solvingNetwork-based appsVpnsL3 to l7 networkingMobile device management platformsRmm toolsEnterprise-level test labs

Salary

$115,000 - $125,000

year

Employment Type

FULL TIME

Level

senior

Posted

4/29/2026

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