Calance

Build and ship backend, web, and client-platform features while integrating APIs, authentication, telemetry, cloud services, and media playback. | Requires senior C#/.NET and React/TypeScript experience, a production-shipped native or cross-platform app, and practical multi-platform client engineering; connected-TV and media-playback experience are preferred. | The Role This role exists to make that real: shared platform components, native or cross-platform clients, and the glue to our APIs, auth, telemetry, and playback stack. You are a Senior engineer who is dangerous on C#/.NET and React, and who has actually shipped at least one native or living-room platform, not only responsive web. What You Will Do Build and ship features across backend (.NET), web (React/TypeScript), and one or more client platforms. Contribute to shared application architecture so web, mobile, and CTV are not three unrelated codebases. Integrate clients with REST APIs, auth, cloud services, telemetry, device APIs, and media playback. Debug the hard client problems: app lifecycle, memory, focremote navigation, fragmented device behavior, and playback edge cases. Help the team choose where a native SDK, a cross-platform framework, or a web-based app is the right tool. Required Experience Senior-level C#/.NET and strong hands-on React/TypeScript web development. You can contribute on both sides of an API in the same sprint. Shipped native or cross-platform applications on at least one of: Android (Kotlin/Java), iOS (Swift), .NET MAUI/Xamarin, React Native, Tizen, Roku / BrightScript, tvOS, or similar living-room platforms. Shipping means store or production release, not a sample app. Building clients that talk to real backends: REST APIs, authentication/authorization, cloud services, telemetry, device capabilities, and media playback. Practical multi-platform engineering: platform SDKs, application lifecycle, networking, performance and memory constraints, deployment, compatibility, and device debugging. Comfort working across backend, web, and client stacks without needing a translator. Strongly Preferred Connected TV (Roku, Fire TV, Tizen, webOS, tvOS, Android TV). CTV constraints are different from mobile, and this is high-value for us. Media playback on-device (ExoPlayer, AVPlayer, Roku Video, HLS/DASH players) and the issues that come with it: buffering, DRM, live latency, captions. .NET MAUI or a shared C# client architecture. App-store / manufacturer certification experience (Roku, Samsung, Amazon, Apple). Nice To Have BrightScript/Roku channel development. In-app purchase, entitlements, or SVOD/AVOD client flows. Experience with a write once, certify many SDK model. This role IS a fit if.. You have a production app on a non-web platform, you can talk about remote-control UX or device fragmentation without flinching, and you still enjoy writing .NET and React. This role IS NOT a fit if.. You are web-only, or a mobile specialist with no interest in backend/web, or you have only wrapped a WebView and called it a native app

Lead architecture, deployment, and operationalization of Tenable One platform across global IT and OT environments. | Senior-level experience in cybersecurity engineering with hands-on skills in Tenable One platform deployment and integration. | Senior Cybersecurity Engineer - Tenable One Company is looking for a senior-level cybersecurity engineer to lead the architecture, deployment, and operationalization of the Tenable One exposure management platform across a global data center and colocation environment. This role spans both traditional IT vulnerability management and OT/IoT security — including building management systems, power and cooling infrastructure, and other critical facility technology. This is a hands-on senior individual contributor role. The engineer will own technical design decisions, drive the build, and hand off a running, measurable program to the customer's security operations team. Key Responsibilities Architecture Design the end-to-end Tenable One architecture: scanner/sensor placement, network segmentation considerations, data flow, and integration points across a distributed global footprint. Produce a target-state architecture and phased deployment roadmap covering IT and OT/IoT scopes. Define asset discovery, tagging, and grouping strategy to support accurate exposure scoring and business-context reporting. Advise on passive vs. active collection methods in sensitive OT environments where active scanning carries operational risk. Deployment Deploy and configure Tenable One and its component modules — Tenable Vulnerability Management, Tenable Security Center, Tenable OT Security, Nessus scanners, Nessus Agents, and Tenable Identity Exposure / Attack Surface Management as scoped. Stand up scan policies, credentialed scanning, agent deployment at scale, and scan scheduling aligned to customer change windows. Build integrations with adjacent systems: CMDB/ITSM (ServiceNow), SIEM, ticketing, identity, and cloud provider accounts. Validate coverage and data quality; remediate scan gaps, credential failures, and false positives. Operationalization Establish the vulnerability and exposure management operating model: SLAs, risk-based prioritization, remediation workflows, exception handling, and escalation paths. Build dashboards and executive-level reporting on exposure posture, remediation velocity, and coverage. Automate recurring workflows (ticket creation, asset reconciliation, reporting) via API and scripting. Document runbooks, standard operating procedures, and knowledge transfer materials; train customer analysts and engineers. Partner with IT, OT/facilities, and application owners to drive adoption and remediation accountability. We strive to create an environment where all employees are empowered to succeed based on their skills, performance, and dedication. Our goal is to cultivate a culture of belonging that encourages innovation, collaboration, and respect for all team members, ensuring that WWT remains a great place to work for All! Equal Opportunity Employer Please inform candidates that this is a contract role with your company and will be assigned to a third?party customer of World Wide Technology. We’re committed to pay transparency. We ask that when posting a role with WWT please include a clear salary or pay range to support fairness and informed decisions.