Sr. Software Engineer (Go, AWS)

Comcast; Philadelphia (Philadelphia County); On-site; USD 140,000 - 190,000; Full time

Job summary

Comcast is seeking a senior backend engineer to design and build the platform for onboarding third-party devices, with a focus on Go and AWS-first development. You will craft scalable, high-concurrency services, mentor engineers, and collaborate with device vendors and internal teams to map device capabilities into the platform.

The role emphasizes system design, fault-tolerant architectures, observability, and end-to-end ownership from design through production operations in a fast-evolving

Qualifications

• 7+ years of backend software engineering experience
• Strong backend engineering fundamentals in a statically typed language such as Java or Go (Go-first going forward)
• Hands-on experience building and operating cloud-native systems on AWS (Lambda, EC2, DynamoDB, SNS, SQS, SSM)
• Proven experience designing distributed systems and high-concurrency, low-latency services
• Strong system design fundamentals: concurrency, scalability, and performance optimization
• Experience with Infrastructure as Code (Terraform)
• Experience with CI/CD pipelines and GitHub Actions
• Hands-on experience operating production services (on-call, incident response, monitoring/alerting)
• Proficiency with AI-assisted development tools
• Strong communication and cross-functional collaboration skills, with experience working across technical and business teams to align on requirements and approach
• Ability to navigate ambiguity and define technical strategy where the path isn’t predetermined
• Track record of owning systems end-to-end in production

Responsibilities

• Design and build the platform, frameworks, and abstractions that make 3rd-party device onboarding repeatable, scalable, and reliable
• Lead architecture and design for integrating external cloud platforms via APIs and event/callback models — including auth/token lifecycle, API contracts and versioning, rate limits, and operational support boundaries
• Design the device-platform abstractions behind these integrations: device identity, capabilities, commands, events, state synchronization, onboarding/deprovisioning, and lifecycle management
• Partner with external device vendors and internal technical and business teams to understand new devices and define the strategy for mapping their capabilities into our platform
• Design and build scalable, high-concurrency backend services in Go on AWS (Lambda, EC2, DynamoDB, SNS/SQS, SSM)
• Build resilient, event-driven integrations on top of third-party systems — handling async event processing, idempotency, retries, partial failure, backpressure, and state reconciliation
• Own end-to-end delivery: design, implementation, rollout, and operations
• Provide maintenance and support for our existing Java/Spring Boot platform during an ongoing transition, while net-new development is Go/AWS-first
• Build and ship using AI-assisted development tools as part of day-to-day engineering
• Set standards for observability, reliability, and operational excellence
• Mentor engineers and guide technical decision-making across the team

Skills

Backend engineering

Java

Go

AWS

System design

CI/CD

AI-assisted development

Cross-functional collaboration

Ownership of systems

Performance optimization

Education

Bachelor's Degree

Tools

Terraform

GitHub Actions

Spring Boot

Micronaut

Job description

Job Summary

About the Role: We’re the Camera Platform team, powering the backend for the video devices in our Smart Home / Connected Living organization. As Smart Home rapidly expands its lineup of connected devices, our charter is growing with it: we’re building the platform that turns 3rd-party device onboarding from a series of bespoke integrations into a repeatable, scalable capability — enhancing home security and peace of mind for Comcast customers. The hard problem isn’t connecting any single device; it’s designing the abstractions, frameworks, and patterns that let us bring an entire ecosystem of diverse devices online quickly and reliably through cloud-to-cloud API and event-driven integrations, each partner with its own APIs, auth models, and capabilities. This is a Go/AWS-first role: net-new development is in Go, and you’ll help set the technical direction for a growing team as it takes shape — working directly with device partners and internal teams to shape how their capabilities map into our platform.

What You’ll Do

• Design and build the platform, frameworks, and abstractions that make 3rd-party device onboarding repeatable, scalable, and reliable
• Lead architecture and design for integrating external cloud platforms via APIs and event/callback models — including auth/token lifecycle, API contracts and versioning, rate limits, and operational support boundaries
• Design the device-platform abstractions behind these integrations: device identity, capabilities, commands, events, state synchronization, onboarding/deprovisioning, and lifecycle management
• Partner with external device vendors and internal technical and business teams to understand new devices and define the strategy for mapping their capabilities into our platform
• Design and build scalable, high-concurrency backend services in Go on AWS (Lambda, EC2, DynamoDB, SNS/SQS, SSM)
• Build resilient, event-driven integrations on top of third-party systems — handling async event processing, idempotency, retries, partial failure, backpressure, and state reconciliation
• Own end-to-end delivery: design, implementation, rollout, and operations
• Provide maintenance and support for our existing Java/Spring Boot platform during an ongoing transition, while net-new development is Go/AWS-first
• Build and ship using AI-assisted development tools as part of day-to-day engineering
• Set standards for observability, reliability, and operational excellence
• Mentor engineers and guide technical decision-making across the team

Required Qualifications

• 7+ years of backend software engineering experience
• Strong backend engineering fundamentals in a statically typed language such as Java or Go (we are Go-first going forward; strong engineers without Go experience are welcome if able to ramp quickly)
• Hands-on experience building and operating cloud-native systems on AWS (Lambda, EC2, DynamoDB, SNS, SQS, SSM)
• Proven experience designing distributed systems and high-concurrency, low-latency services
• Strong system design fundamentals: concurrency, scalability, and performance optimization
• Experience with Infrastructure as Code (Terraform)
• Experience with CI/CD pipelines and GitHub Actions
• Hands-on experience operating production services (on-call, incident response, monitoring/alerting)
• Proficiency with AI-assisted development tools (e.g., coding assistants/agents) and good judgment about where they help
• Strong communication and cross-functional collaboration skills, with experience working across technical and business teams to align on requirements and approach
• Ability to navigate ambiguity and define technical strategy where the path isn’t predetermined
• Track record of owning systems end-to-end in production

Preferred Qualifications

• Experience integrating 3rd-party devices, APIs, SDKs, or hardware/IoT protocols
• Experience integrating external cloud platforms or SaaS APIs (auth/token lifecycle, API versioning, rate limits, webhooks/callbacks)
• Experience with event-driven architectures and asynchronous messaging (e.g., SNS/SQS, queues, streams, pub/sub)
• Production Go experience
• Prior IoT or device-platform experience
• AWS certification is a plus, though hands-on production experience matters more
• Experience with Spring Boot or Micronaut

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:

CI/CD; Amazon Web Services (AWS); Internet of Things (IoT); Back-End Development; Java (Programming Language); Go Programming Language

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