Full-Time

Senior Backend Engineer C++

Posted on 11/1/2025

Comcast

Comcast

10,001+ employees

Cable, internet, and networks provider

Compensation Overview

$126.8k - $190.2k/yr

+ Bonus + Commission

Chicago, IL, USA + 1 more

More locations: Reston, VA, USA

Hybrid

Category
Software Engineering (1)
Requirements
  • In-depth understanding of cloud, containerization and other related technologies, familiar with distributed architecture and commonly-used middleware such as cache, message queue, Nginx, etc.
  • Experience in large-scale online service design, development and operation and maintenance is preferred.
  • Good understanding of Linux/Unix, with excellent data structure and algorithm foundation.
  • Proficiency in C++ or Golang and network programming.
  • Experience with large system software design and development.
  • Experience with distributed systems and mission-critical systems is preferred.
  • Demonstrated expertise in problem solving and technical innovation.
  • Strong passion with learning/practicing new technics.
  • Knowledgeable about SDLC, Agile and Software Engineering Methodology.
  • Team working skills, Good communication skills, Willingness to work under pressure.
  • Have strong ability and persistency on technical support.
  • Have ability to work close with global teams and accept additional working time besides normal working hours to have meeting or co-working with global teams.
  • Bachelor's Degree or above.
  • 7-10 Years of relevant work experience.
Responsibilities
  • Construct and optimize the infrastructure of the ad delivery system with high concurrency, high availability, and low latency ad delivery.
  • Continuous optimization and reconstruction of existing systems to support rapid business development.
  • Responsible for end-to-end software development, Assists with the software update process for existing applications and roll-outs of software releases.
  • Collaborates with project stakeholders to identify product and technical requirements. Conducts analysis to determine integration needs.
  • Researches, writes and edits documentation and technical requirements, including software designs, evaluation plans, test results, technical manuals and formal recommendations and reports.
  • Provides technical leadership throughout the design process and guidance with regards to practices, procedures and techniques. Serves as a guide and mentor for junior-level Software Development Engineers.
  • Displays in-depth knowledge of engineering methodologies, concepts, skills and their application in the area of specified engineering specialty.
  • Displays in-depth knowledge of and ability to apply, process design and redesign skills. Presents and defends architectural, design and technical choices to internal audiences.
  • Design, architect, and implement solutions utilizing AWS services, Kubernetes, and containerization technologies.
  • Develop and manage highly scalable and reliable infrastructure on AWS, ensuring optimal performance and cost efficiency.
  • Deploy and manage containerized applications using Kubernetes and related orchestration tools.
  • Implement security best practices and ensure the integrity and compliance of the AWS infrastructure and containerized environments.
  • Optimize application performance, scalability, and availability in the AWS cloud environment.
  • Collaborate with cross-functional teams to gather requirements and translate them into technical designs and specifications.
  • Document and maintain software functionality.
  • Support overall business.
  • Solve issues in technical way.
  • Stay updated with the latest advancements in AWS services, Kubernetes, and containerization technologies, and evaluate their potential impact on our infrastructure and applications.
  • Troubleshoot and resolve infrastructure and application-related issues, working closely with the operations and development teams.
  • Collaborate with stakeholders to identify and implement automation and optimization opportunities across the infrastructure and deployment processes.
  • Partner with global engineering, product and operations teams to further incorporate collective innovations.
  • Mentor junior level software engineers.
Desired Qualifications
  • Experience in large-scale online service design, development and operation and maintenance is preferred.
  • Advertising industry experience is a plus.

Comcast provides high-speed internet, cable television, and phone services to residential and business customers while also operating major media networks, film studios, and theme parks. The company delivers these services through its Xfinity and Sky brands and generates revenue by selling subscriptions, advertising space, and entertainment experiences. Unlike many competitors, Comcast controls both the distribution infrastructure and the content itself, allowing it to manage the entire pipeline from production to the consumer's home. Its goal is to use this integrated network to provide a wide range of media and technology services to a global audience.

Company Size

10,001+

Company Stage

IPO

Headquarters

Philadelphia, Pennsylvania

Founded

1963

Simplify Jobs

Simplify's Take

What believers are saying

  • Business Services Connectivity grew 5% to $9.7B in FY2024, targeting $50B market.
  • Universal Epic Universe drove 24% theme parks revenue surge to $2.44B in Q1 2026.
  • Wireless lines hit record 435K adds in Q1 2026, totaling 9.7 million lines.

What critics are saying

  • Domestic broadband lost 2.99M customers year-over-year in Q1 2026 to AT&T fiber.
  • Peacock losses doubled to $432M in Q1 2025, totaling over $1.2B cumulative.
  • Media division lost $436M in Q1 2025 from $5B NBA and NFL rights costs.

What makes Comcast unique

  • Comcast Business leverages 150,000 fiber route miles for 100 Gbps scalable capacity.
  • Xfinity Mobile MVNO uses millions of owned WiFi hotspots atop Verizon towers.
  • Universal Ads self-service platform unifies linear TV and streaming for 90% US households.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

401(k) Company Match

Paid Vacation

Paid Parental Leave

Tuition Reimbursement

Unlimited Paid Time Off

Company News

CNBC
Apr 13th, 2026
Wall Street loves streaming, but smaller players still struggle to turn a profit

Streaming companies have pivoted from prioritising subscriber growth to profitability, raising prices, cracking down on password sharing and expanding ad-supported tiers. However, it remains unclear whether smaller players can achieve meaningful profits. Netflix leads the industry with a 29.5% operating margin in 2025 and 325 million global subscribers. Disney has guided towards a 10% direct-to-consumer operating margin for fiscal 2026, whilst Paramount and Warner Bros Discovery have posted profitable quarters and Comcast's Peacock is narrowing losses. Analysts question whether streaming can match the profitability of legacy linear TV businesses. Netflix raised prices again recently, with subscription plans now ranging from $7.99 to $26.99 monthly across the industry. The company reported over $1.5 billion in advertising revenue for 2025, expected to double this year.

National Today
Apr 12th, 2026
Sumitomo Mitsui Trust Group increases Comcast stake by 6.1% to $328M

Sumitomo Mitsui Trust Group has increased its stake in Comcast Corporation by 6.1% during the fourth quarter of 2025, according to a 13F filing with the Securities and Exchange Commission. The Japanese financial group now holds 11,729,109 shares worth approximately $328 million, representing about 0.32% of Comcast's outstanding shares. The acquisition, which added 669,231 shares to Sumitomo Mitsui's portfolio, signals continued institutional confidence in the cable and media conglomerate despite recent stock price volatility. Other major institutional investors, including Capital Research Global Investors and State Street Corp, also maintain significant positions in Comcast. The filing was submitted on 12 April 2026, reflecting the group's Q4 2025 holdings in the American telecommunications and media company.

National Today
Apr 10th, 2026
Oak Thistle acquires $1.32M stake in Comcast during Q4 2025

Oak Thistle LLC acquired a new stake in Comcast Corporation during the fourth quarter of 2025, purchasing 44,273 shares valued at approximately $1.32 million. The investment was disclosed in a 13F filing with the Securities and Exchange Commission. The acquisition highlights continued institutional interest in the Philadelphia-based cable and media giant, which has a market capitalisation exceeding $100 billion. Comcast faces challenges in its cable and media businesses as the telecommunications and entertainment landscape evolves. The investment represents Oak Thistle LLC's entry into Comcast stock, reflecting broader institutional appetite for companies navigating the changing media and communications sector.

Yahoo Finance
Apr 1st, 2026
Comcast expands rural broadband and launches bundled cybersecurity for small businesses

Comcast has expanded its multi-gigabit internet footprint across several US communities and launched "Total Solutions Advantage", an all-in-one connectivity and cybersecurity bundle for small businesses with predictable monthly pricing. The moves include rural and suburban network buildouts in New Hampshire, West Virginia, Georgia and Pennsylvania. The Total Solutions Advantage offering combines broadband, wireless and security services, aiming to deepen product penetration and create stickier customer relationships. However, investors must weigh rising capital intensity and intensifying competition from fibre and fixed-wireless providers. Comcast's investment narrative projects $128.7 billion revenue and $13.9 billion earnings by 2028, requiring 1.2% annual revenue growth. Some analysts forecast more cautious figures of $124.4 billion revenue and $11.2 billion earnings, citing broadband saturation and capital constraints.

Yahoo Finance
Mar 31st, 2026
Comcast Q1 earnings preview: EPS expected to fall 24% to $0.83

Comcast is expected to report fiscal first-quarter earnings on 23 April, with analysts forecasting profit of $0.83 per share, down 23.9% year-over-year. The Philadelphia-based media and technology company has surpassed Wall Street's earnings expectations in its last four quarterly reports. For the full year, analysts expect earnings per share of $3.66, down 15.1% from fiscal 2025, though earnings are projected to rise 4.6% to $3.83 in fiscal 2027. Comcast shares have fallen 21.1% over the past year, underperforming the S&P 500's 13.7% gain. The stock rose 2.9% after its fourth-quarter results beat expectations in January. Analysts maintain a cautious "Hold" rating, with a consensus price target of $33.45, indicating potential upside of 15.7%.

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