Top Software Engineer Jobs

Design, implement, test, deploy, maintain and improve microservices and platform components. Lead complex feature initiatives and code reviews, adopt new technologies, and collaborate with product, architects, and UX to define and deliver high-quality, large-scale services.

Build and scale secure, performant backend APIs and core platform services powering Microsoft Copilot. Develop high-quality, tested, maintainable code; collaborate with product managers, designers, data scientists, researchers, and engineers; resolve complex technical challenges; and rapidly deliver AI-powered consumer experiences.

Design and implement native Windows components in modern C++; work on device redirection, input, display, audio/video, USB/HID and driver-adjacent code; diagnose kernel/user-mode issues, optimize performance and memory, and own features end-to-end including telemetry, dumps, and live-site debugging.

Design and implement scalable first-mile networking solutions for Microsoft 365 Substrate and COSMIC. Drive design, dependency identification, coding, optimization, debugging, and on-call monitoring. Analyze production telemetry to improve reliability, performance, and observability. Act as a DRI, lead design and release plans, and collaborate with stakeholders to meet product requirements at global scale.

Design, build, and operate cloud-scale, multi-tenant services for Microsoft Edge and Copilot app management. Drive architecture, reliability, security, and cross-team integration from design through production. Mentor engineers, lead technical initiatives, and use telemetry to improve product quality and customer experience.

Design and implement air-charge estimation and turbo/boost control algorithms in PCM using C. Validate control software via unit tests, SIL/MIL/HIL, and plant models. Troubleshoot air-path diagnostics, maintain documentation and calibration artifacts, and lead control system planning and program management across vehicle programs to meet functional, emissions, performance, and safety requirements.

Design, build, and scale APIs, backend services, and intuitive mobile/web UIs. Drive technical standards across the product lifecycle, deploy secure and performant systems, and take ownership of product outcomes in an early-stage startup.

Lead ownership of Belfry's React Native/Expo mobile app and React web platform; establish frontend best practices, design systems, observability, and performance standards; contribute across the full stack (APIs, backend, integrations); deploy and scale production systems; mentor engineers and promote AI-assisted development workflows.

Build and improve Belfry’s React Native and Expo mobile application and React web platform for field officers and back-office teams. Establish UI best practices, observability, and design systems; contribute to APIs, backend services, integrations, and infrastructure as needed. Help adopt AI-powered coding tools, take ownership of product initiatives, communicate technical and product ideas, and mentor engineers.

Lead design and delivery of enhancements to a next-generation AI agent platform. Own large features and infrastructure, mentor engineers, set technical standards, drive cross-team initiatives, improve reliability and SLOs, and influence product and process decisions to scale systems supporting millions of interactions.

Design and implement front-end applications and back-end microservices in an agile environment. Improve UX/UI, application performance, reliability, and observability. Mentor junior engineers, propose architecture and process improvements, and deliver mission-focused solutions using modern cloud, container, and web technologies.

Design and implement the carrier-grade VoIP/SIP backbone, build Golang-based SIP services and control planes, configure HA SIP proxies and media servers, implement routing, security (TLS/SRTP), billing and provisioning integrations, define monitoring and capacity planning, and collaborate with product and ops to deliver resilient telephony features.

Drive industry enablement for 3D Gaussian Splatting by developing a developer-friendly SDK, implementing pipelines, integrating with multimedia frameworks, and ensuring software quality.

Lead design and implementation of scalable, low-latency ad experience systems. Mentor engineers, review code/tests, build observability, support on-call rotations, prototype ad formats, and translate product requirements into production-ready microservices.

Design, develop, test, and maintain desktop laboratory applications (primarily C# with WPF/WinForms). Implement SDLC practices, integrate software with lab hardware, troubleshoot software/hardware interfaces, produce documentation and QA/test plans, support deployments and end users, and lead projects or mentor team members. On-site at Farmingdale, NY at least two days per week.

As a Backend Software Engineer, you'll design scalable features, contribute to architecture, work closely with customers, and ensure quality code.

The Senior Software Engineer will build AI solutions for clinical workflows, collaborating with teams to enhance software architecture and mentor other engineers.

The Principal Software Engineer will provide architectural guidance, mentor developers, manage risks, and ensure high-quality software production across various teams and product areas.

Design, build, and ship end-to-end features across the full stack at scale. Serve as an early technical steward, raising engineering quality, building infrastructure and platforms, and working closely with customers to iterate rapidly and solve real-world data and storage problems.

Design, develop, and maintain scalable full-stack applications and visual tools for AI application development. Lead architecture and UI discussions, collaborate with product and design teams, fix bugs, mentor junior engineers, manage deliverables, and help build the engineering team.

Design and develop scalable applications, collaborate across teams, troubleshoot issues, and utilize modern development practices in cloud environments. Requires extensive software engineering experience, particularly in Java and cloud technologies.

As a Senior Software Engineer, you will build and operate Upbound Spaces, resolve issues in SaaS environments, develop features, support project lifecycles, manage Kubernetes services, and enhance operational tools.

As a Principal Software Engineer, you'll design and deploy ML-powered tools, build scalable backend systems, and engage with clients for AI solutions. You'll work on R&D for innovative tools and manage cloud operations to support ML models.

The Senior Software Engineer will design, develop, and maintain scalable applications using .NET Core and AWS, while collaborating in Agile teams.

As a Senior Software Development Engineer, you'll build and manage large-scale data-oriented systems, enhance user experiences, and integrate AI tools for customer data solutions.