Senior Cloud Engineer (Contract)

Senior Cloud Engineer | Remote | 4-month contract Vervint is hiring a Senior Cloud Engineer to own OTA and firmware management for our backend platform team. This is a hands-on, contract engineering role: you'll own the cloud side of firmware publishing, device eligibility, and rollout delivery end to end — how firmware is published, which devices are eligible, how rollouts progress, and how we confirm an update actually landed — working in Go and AWS and making the architectural calls yourself. What You'll Do: Work alongside architects to implement the firmware release model — hardware families, immutable bundles, channels, and per-device assignment — and the resolution rules that decide what a given device should be running. Run progressive rollouts safely: staged percentages, version pins and floors, pause and rollback, and eligibility rules that keep the wrong firmware off the wrong hardware. Own artifact publishing and delivery — checksummed packages in S3, expiring download URLs, and delivery that holds up on constrained devices and poor home networks. Build the reporting side so a rollout is observable while it's happening: update status from devices, success and failure rates, and the devices that are quietly stuck. Design the APIs and admin tooling that firmware, QA, and support teams use to publish builds, target test fleets, and unblock an individual device. Partner with firmware and manufacturing on version schemes, install policies, and what devices are expected to be running when they leave the factory. Treat safety as a design constraint: authorization on destructive operations, audit trails, and guardrails that make a catastrophic rollout hard to trigger by accident. Define your infrastructure as code across environments, and keep OTA alarmed, observable, and covered by the runbooks an on-call engineer needs at two in the morning. What You'll Bring: 6+ years building production backend services in the cloud, with strong hands-on Go — or deep experience in another statically typed language and real appetite for writing Go. Deep AWS experience across serverless and container services — Lambda, ECS and Fargate, API Gateway, DynamoDB, S3 — and the judgment to choose between them. Direct experience with OTA, firmware distribution, or fleet update systems — or another high-stakes rollout system where a mistake reaches users you cannot easily reach back. Strong data modeling instincts, including DynamoDB design for versioned, immutable, and precedence-based data. Real understanding of device constraints: intermittent connectivity, limited storage, resumable downloads, and partial failure. Versioning discipline — semantic versioning, compatibility rules, and rollback thinking done before the rollout rather than during it. Infrastructure as code, CDK preferred, plus IAM, KMS, artifact integrity, and least-privilege access as part of your normal work. A track record on contract engagements: you ramp up fast, work inside existing conventions, and scope your own work — plus a passion for connected consumer products and the curiosity to thrive alongside a strong engineering team. Preferred Qualifications: Connected device or IoT backends: MQTT and IoT Core, device state, provisioning, and manufacturing flows. Firmware signing, secure boot, or artifact and supply-chain integrity practices. AWS IoT Jobs, IoT Device Management, or comparable fleet orchestration tooling. Consumer hardware at scale — large fleets, multiple regions, and long product lifetimes with old firmware still in the field. Observability and on-call practice (Prometheus, Loki, OpenTelemetry, alarms, runbooks), and using AI-assisted development tools where their output can be verified.