Sr. Quality of Service (QoS) Software Engineer - Chicago, IL OR Reston, VA
Chicago, Illinois; Reston, Virginia
Overview
Make your mark at Comcast -- a Fortune 30 global media and technology company. Become part of our award-winning, international engineering team that turns big ideas into cutting-edge products, platforms, and solutions that our customers love. We create space to innovate, and we recognize, reward, and invest in your ideas, while ensuring you can proudly bring your authentic self to the workplace. You’ll do the best work of your career right here.
Success Profile
What makes a successful Sr. Quality of Service (QoS) Software Engineer - Chicago, IL OR Reston, VA at Comcast? Check out these top traits and explore role-specific skills in the job description below.
- Results-driven
- Adaptable
- Inventive
- Entrepreneurial
- Team Player
- Problem-Solver
Responsibilities
Sr. Quality of Service (QoS) Software Engineer - Chicago, IL OR Reston, VA
Job Summary
We’re looking for a Senior Sr. Quality of Service (QoS) Software Engineer to be the central point of accountability for Quality of Service in Software Engineering. This role is special because it combines deep technical expertise with strong collaboration and communication skills, ensuring we not only resolve incidents quickly but also turn them into long-term improvements. You’ll split your time between technical ownership – leading root cause analysis, retrospectives, and system hardening – and cross-functional collaboration – working with Engineering teams on improvement plans and with the COO/client-facing teams on impact analysis and clear communications. This role is key to building a resilient, reliable, and learning-focused culture where every incident strengthens our systems, our processes, and our customer trust. As our customer base grows globally, you’ll also help us ensure consistent, high-quality service across time zones and regions. This role is about creating consistency, building trust, and making sure escalations become opportunities to improve – not just problems to patch.Job Description
Core Responsibilities
Technical Ownership (50%)
- Own the Escalations lifecycle within Engineering, from the beginning through resolution.
- Lead root cause analysis (RCA) sessions that dig deeper than symptoms and deliver long-lasting fixes.
- Facilitate retrospectives and follow-ups, turning lessons learned into clear improvement plans.
- Define and track metrics (incident frequency, resolution times, client impact), and make them visible through dashboards and reports.
- Partner with teams to strengthen systems through tooling, automation, and platform hardening.
- Keep a cross-platform perspective (TV, Data, Beeswax, Strata) to spot patterns and systemic issues.
Collaboration & Communication (50%)
- Lead QoS reviews and improvement sessions with leadership, highlighting what happened, why, and how we’ll prevent it next time.
- Support a culture of learning and transparency by running training, knowledge-sharing, and quality workshops.
- Act as the single voice for Engineering in incident management, making sure communication is consistent and clear at all levels.
- Collaborate with Engineering (Tier 2/3) to resolve incidents quickly and share learnings across teams.
- Partner with Operations (Tier 1) to fine-tune escalation paths and help reduce unnecessary hand-offs.
- Work closely with the COO team to analyze client impact and provide crisp, timely updates during incidents.
Requirements
- 6+ years of technical experience in software engineering, site reliability, or production operations.
- Proven track record of managing the full software development lifecycle (SDLC), from requirements gathering to production release. Hands-on understanding of full-stack components:
Hands on understanding of full stack components:
1. Frontend/UI frameworks and client experience
2. APIs & service layers
3. Database layer (SQL/NoSQL, data modeling, performance tuning)
4. Backend servers and distributed systems
5. Big data & ETL pipelines (batch and streaming)
- Strong knowledge of incident management (PagerDuty, Jira, Datadog, Splunk, ServiceNow).
- Confidence to dive deep with engineers while also translating technical details into clear business context for executives and clients.
- Experience operating in global, multi-time-zone environments with diverse customer and platform needs.
Employees at all levels are expected to:
- Understand our Operating Principles; make them the guidelines for how you do your job.
- Own the customer experience - think and act in ways that put our customers first, give them seamless digital options at every touchpoint, and make them promoters of our products and services.
- Know your stuff - be enthusiastic learners, users and advocates of our game-changing technology, products and services, especially our digital tools and experiences.
- Win as a team - make big things happen by working together and being open to new ideas.
- Be an active part of the Net Promoter System - a way of working that brings more employee and customer feedback into the company - by joining huddles, making call backs and helping us elevate opportunities to do better for our customers.
- Drive results and growth.
- Support a culture of inclusion in how you work and lead.
- Do what's right for each other, our customers, investors and our communities.
Disclaimer:
- This information has been designed to indicate the general nature and level of work performed by employees in this role. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications.
Comcast is an equal opportunity workplace. We will consider all qualified applicants for employment without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, disability, veteran status, genetic information, or any other basis protected by applicable law.
Skills:
Design Processes; Technical Requirements; Planning
Salary:
Primary Location Pay Range: $126,788.71 - $190,183.07
Comcast intends to offer the selected candidate base pay within this range, dependent on job-related, non-discriminatory factors such as experience. The application window is 30 days from the date job is posted, unless the number of applicants requires it to close sooner or later.
Base pay is one part of the Total Rewards that Comcast provides to compensate and recognize employees for their work. Most sales positions are eligible for a Commission under the terms of an applicable plan, while most non-sales positions are eligible for a Bonus. Additionally, Comcast provides best-in-class Benefits to eligible employees. We believe that benefits should connect you to the support you need when it matters most, and should help you care for those who matter most. That’s why we provide an array of options, expert guidance and always-on tools, that are personalized to meet the needs of your reality – to help support you physically, financially and emotionally through the big milestones and in your everyday life. Please visit the compensation and benefits summary on our careers site for more details.
Education
Bachelor's Degree
While possessing the stated degree is preferred, Comcast also may consider applicants who hold some combination of coursework and experience, or who have extensive related professional experience.
Relevant Work Experience
7-10 Years
Hear from our people
Culture
At Comcast you can have work/life balance in an inclusive environment where you can be your authentic self.
Comcast provides many opportunities to build skills and grow in your career and a top-notch benefits, time off and perks package.
We are committed to delivering reliable, effortless experiences to our customers no matter how they choose to interact with us.
You will build personal relationships on a growing team that while making Xfinity a best-in-class, most-loved brand.

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