Staff Software Engineer - Connected Device & Platform

Join a world-class engineering organization building the cloud platform that powers millions of connected devices across Security, Comfort, Air, and Water solutions. In this role as a Staff Software Engineer, you will operate as a technical owner for complex initiatives, leading small groups of engineers (2-3 developers) and driving delivery across multiple system layers, from device integration through cloud services and application consumption.This role blends hands-on engineering, technical leadership, and end-to-end ownership, with a strong emphasis on clear technical thinking, concise documentation, and disciplined software practices.JOB DUTIESTechnical Leadership & Initiative OwnershipOwn medium-to-large initiatives end-to-end, from early requirement discovery through design, implementation, rollout, and production hardening; Lead and guide a small pod of 2-3 developers, providing technical direction, task breakdown, and delivery accountability; Balance hands-on development with leadership responsibilities, remaining deeply involved in critical code paths and design decisions; Drive alignment across teams (Product, Firmware, Mobile, QA, SRE, DevOps, Partner teams) to deliver cohesive, cross-layer integrations.Architecture & System DesignDesign and evolve backend services using C#/.NET on Azure within a highly distributed, event-driven architecture; Define clear service contracts using OpenAPI, JSON Schema, and contract-first design principles; Architect and implement event-driven workflows using Event Hubs, Service Bus, IoT Hub, Event Grid, and internal messaging pipelines; Make pragmatic architectural decisions that balance scalability, reliability, delivery timelines, and long-term maintainabilityRequirements & DocumentationLead technical requirement discovery in collaboration with Product and partner teams, translating ambiguous inputs into clear technical designs; Produce concise, high-quality documentation (RFCs, design docs, sequence diagrams, operational notes) that enables fast, confident execution; Establish and enforce clear ownership boundaries, contracts, and integration expectations across systems and teamsReliability, Automation & QualityChampion strong software engineering practices: automated testing, CI/CD, safe deployments, and progressive rollouts; Drive improvements in observability, resilience, and operational readiness using metrics, logging, tracing, and alerting; Lead performance analysis and capacity planning for high-throughput device telemetry and fan-out workloads; Participate in incident investigations and ensure learnings translate into durable fixes and platform improvementsPlatform & Operational OwnershipTake ownership for features in production, including on-call participation, root-cause analysis, and long-term remediation; Proactively identify platform gaps and propose initiatives to improve scalability, reliability, developer experience, or cost efficiency; Act as a technical point of contact for complex integrations spanning multiple services and teamsYOU MUST HAVE7+ years of experience building and operating production-grade cloud systems, with deep expertise in C#/.NET, distributed systems, concurrency, and scalable service designProven experience leading technical initiatives and guiding other engineers through deliveryConceptual understanding of IoT Hub technologies OR event-driven architecture with high throughputsProfessional experience with event-driven architectures and Azure messaging services (Event Hubs, Service Bus, IoT Hub, etc.)Professional experience with CI/CD pipelines, automated testing strategies, and frequent, reliable deploymentsExperience running containerized workloads using Docker and Kubernetes, with working knowledge of SQL and NoSQL data stores (PostgreSQL, SQL Server, Cosmos DB, Redis, etc.)The ability to work in-office three days/week (Tu/Weds/Thurs) in adherence with our required hybrid work environmentWE VALUEExperience in highly rigorous engineering environments, competitive technical programs, or equivalent applied industry experience demonstrating an ability to be analytical and solve complex engineering problems at a level commonly seen in top tier technical training or high performing engineering rolesAbility to navigate ambiguity, make sound technical decisions, and maintain momentum in a fast-moving environmentExperience building connected-device or IoT platforms at scaleDemonstrated ability to lead small teams without formal people management responsibilitiesStrong written communication skills and a bias toward clear, minimal, and actionable documentationComfort working across organizational boundaries and influencing without authorityExperience with performance tuning, throughput optimization, and distributed system debuggingA mindset of ownership, accountability, and continuous improvementWHAT’S IN IT FOR YOUHigh Impact: Own and deliver critical platform initiatives that power millions of connected devices worldwideTechnical Leadership: Lead real projects and shape architecture, not just contribute codeEnd-to-End Ownership: See your work through from concept to production and long-term operationGrowth Path: Clear runway toward Staff/Principal engineering or platform leadership rolesModern Stack: Azure cloud, event-driven systems, large-scale telemetry, Kubernetes, and modern DevOps practicesCompetitive Compensation & Benefits: Including health coverage, retirement plans, paid time off, and flexible work arrangements#LI-LH1#LI-HYBRIDResideo is a global leader in smart home and building solutions, with trusted brands including Honeywell Home, First Alert, and Resideo helping people feel more comfortable, secure, connected, and in control every day. Our products and technologies are found in more than 150 million homes and businesses worldwide. From intelligent climate solutions to security, sensing, water, and connected home technologies, Resideo develops and manufactures products designed to simplify everyday life and help protect what matters most. Our global teams span engineering, manufacturing, software, product management, supply chain, customer experience, and more — all working together to shape the future of connected living through innovation, quality, and meaningful real-world impact. At Resideo, our teams help create products and experiences that make everyday life more comfortable, secure, and connected for millions around the world. Learn more at .You can find out more about how the talent community works here: Resideo Talent Community Terms. Our recruitment privacy notice Resideo -Recruitment Privacy Notice - Dec 16 2022 describes in more detail how we process your personal data and how you can exercise your personal data rights.If a disability prevents you from applying for a job through our website, request assistance here.Full timePosting Date: 2026-03-02