Sr. Software Engineer (Go / AWS, IoT Device Integration)

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. Job Description

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
• 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

Requirements

• 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

Benefits

Additional Information

Make your mark at Comcast -- a Fortune 30 global media and technology company. From the connectivity and platforms we provide, to the content and experiences we create, we reach hundreds of millions of customers, viewers, and guests worldwide. Become part of our award-winning technology 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. Join us. You'll do the best work of your career right here at Comcast. (In most cases, Comcast prefers to have employees on-site collaborating unless the team has been designated as virtual due to the nature of their work. If a position is listed with both office locations and virtual offerings, Comcast may be willing to consider candidates who live greater than 100 miles from the office for the remote option.) Job Summary

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