Why This Job is Featured on The SaaS Jobs
This Senior Quality Engineer role sits at a common but demanding intersection in SaaS: cloud-delivered security paired with endpoint software that must behave reliably across Windows and macOS. For DNS and network protection products, quality issues surface as trust and risk, so the testing function becomes tightly coupled to product credibility, not just release readiness. The focus on roaming clients also signals real-world variability, where operating system differences, device management tooling, and network conditions materially shape user experience.
From a SaaS career standpoint, the work builds durable expertise in risk-based, context-driven testing for distributed clients at scale. It develops fluency in diagnosing faults across layers, from endpoint internals and telemetry to protocols like DNS and TCP/UDP, which transfers well to other security, networking, and platform SaaS categories. The remit includes triage, debugging, and end-to-end validation, reinforcing a systems view that is valuable in mature quality organizations.
This position tends to suit engineers who prefer investigative work and clear written communication, and who are comfortable owning test strategy alongside hands-on execution. It also aligns with professionals who want remote collaboration with globally distributed teams and who enjoy working close to complex integrations rather than isolated feature testing.
The section above is editorial commentary from The SaaS Jobs, provided to help SaaS professionals understand the role in a broader industry context.
Job Description
DNSFilter’s mission is to protect our customers and partners with products they love to use! We are revolutionizing network security by providing fast, accurate, and reliable threat protection and content filtering. We're a rapidly growing company dedicated to creating a safer internet for businesses and organizations worldwide. Leveraging AI-driven threat intelligence, DNSFilter empowers our customers to proactively block threats before they impact their networks. We foster a collaborative, innovative, and results-oriented culture where every team member contributes to our mission of making the internet safer.
As we continue our product-fueled growth by adding new features and broadening our solution to meet the needs of the global market, it's clear there's a missing piece. That's where you come in!
We are looking for a technical Senior Quality Engineer experienced with risk-based context-driven testing to help us build and evolve our roaming client software. Our roaming clients are built for multiple OS platforms and run on hundreds of thousands of machines. It secures our customers' machines, allowing them to filter DNS traffic and properly block incoming risks or sites.
Eligible candidates have and can work successfully in a remote environment and are familiar with working in a fast-paced, hyper-growth SaaS start-up. This is a full-time remote or hybrid role working with globally distributed teams, eligible for candidates who can work ET hours, ideally located near Westchase, Florida.
We recognize that people come with a wealth of experience and talent beyond just the technical requirements of a job. If you feel like this job is for you, please apply. We believe diversity of experience and skills, including transferable skills, combined with passion, is a key to innovation and excellence; therefore, we encourage people from all backgrounds to apply to our positions!
In this role, you will:
- 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
To qualify for this role, you have:
- 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
Bonus points for:
- 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
We Offer:
- 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!
DNSFilter is a pay-for-performance organization, which means there is an opportunity to advance your compensation based on performance over time. The hiring base pay is dependent on several factors, including level, function, training, transferable skills, work experience, business needs, and geographic location. As a hybrid company, our compensation reflects the cost of labor across several U.S. and global geographic markets. We pay differently based on those defined markets. Our Talent Team can share more about the specific salary range for the job location during the hiring process.
DNSFilter participates in the E-Verify program.
At DNSFilter, we utilize sophisticated software and tools to identify and eliminate Deepfake candidates. This approach helps us maintain the integrity of our hiring process, ensuring that we select the most qualified and genuine individuals to join our team.
U.S. hiring salary range
$115,000—$125,000 USD
