Top Principal Engineer Jobs in NYC, NY

Leads architecture, development, testing, and deployment of hyperscale distributed storage systems optimized for AI and machine learning workloads. Drives innovations in scalability, performance, security, durability, and efficiency; collaborates with AI and cloud infrastructure teams; mentors engineers; and evaluates emerging technologies for AI-native storage.

Architects, deploys, and manages secure, automated networking across AWS, Azure, and hybrid-cloud environments. Designs Spine-Leaf infrastructure, optimizes Direct Connect and ExpressRoute connectivity, and leads multi-cloud infrastructure vision. Serves as an Infrastructure as Code subject matter expert using Terraform and Ansible, troubleshoots networking and security issues, documents solutions, collaborates with stakeholders, and participates in tier 3 on-call support.

Develops, tests, documents, maintains, and enhances software solutions using Appian and related technologies. Integrates Appian with external systems and services, resolves technical problems, remediates security vulnerabilities, improves performance, and participates in planning and user-story analysis. The role follows software development processes, documents standards, and mentors engineers while helping prioritize work for a development team.

Provides technical leadership for architecture and evolution of large-scale distributed data platforms supporting Azure network telemetry. Designs streaming and batch systems, establishes reusable engineering patterns, drives cross-team technical strategy, and owns capabilities from design through production operations. Ensures scalability, reliability, security, performance, data quality, and operational excellence while mentoring engineers and influencing technical leaders. The role also involves architectural reviews, dependency management, risk reduction, and applying AI or machine learning approaches to operational systems.

Leads architecture and production delivery of a near-real-time observability platform for large-scale AI supercomputers. Responsibilities include telemetry ingestion, processing, storage, querying, topology and health modeling, 1P/3P data convergence, AI-assisted anomaly detection, technician dashboards, repair validation, security, reliability, cross-team technical leadership, and mentoring.

Leads enterprise application development across Salesforce, NetSuite, billing, and integrated platforms. Designs and implements complex solutions, automates testing and workflows, performs incident analysis, improves architecture and integrations, and reduces technical debt. Acts as a subject matter expert, mentors engineers, reviews code, guides vendors, promotes DevOps and AI adoption, and supports strategic modernization initiatives.

Design and lead development of high-performance networking infrastructure for large-scale AI training and inference in Azure. Architect low-latency, low-jitter communication frameworks, optimize distributed systems, benchmark scalability, resolve complex networking issues, and improve reliability, observability, and performance. Mentor engineers, create technical designs, manage dependencies, and participate in on-call operations for critical services.

Lead architecture and development of large-scale silicon photonic integrated circuits from simulation and layout through tapeout and characterization. Own chip-level specifications, optical routing, floorplanning, DFM, verification, foundry execution, and performance validation. Provide technical leadership across photonic, packaging, electronic IC, software, and test teams while developing component libraries, evaluating PDKs, and translating wafer-level measurements into design improvements.

Leads engineering within a product domain, driving large-scale strategic initiatives across multiple teams. Establishes technical standards, architecture, and scalable best practices; aligns engineering, product, data science, and business stakeholders; guides roadmaps and resource allocation; communicates with executives; and coaches engineering leaders and senior individual contributors.

Owns the architecture and long-term strategy for Blink Health’s hybrid enterprise network across on-premises and AWS environments. Responsibilities include routing, switching, VPN, firewalls, cloud networking, network automation, security standards, observability, high availability, complex migrations, incident escalation, documentation, and mentoring. The role requires technical leadership across engineering, security, and platform teams, participation in on-call rotation, and up to 10% travel to office sites.

Build and own Arcadia’s internal developer platform across a large-scale data lakehouse and Kubernetes applications. Develop self-service APIs, templates, golden paths, CI/CD capabilities, observability, security controls, and reliability practices. Lead platform migrations, improve developer experience, manage stakeholder needs and costs, set technical direction, and coach senior engineers. The role requires hands-on software development alongside expertise in cloud infrastructure, Kubernetes, networking, infrastructure as code, SLOs, incident response, and platform product management.

Leads process hazard analyses, layer of protection analyses, and PSM/RMP compliance audits for complex client projects. Facilitates HAZOPs and other PHA methods, interprets process drawings, prepares technical deliverables, ensures quality, and provides engineering leadership. Manages project scope, schedules, budgets, staff assignments, and client relationships while mentoring engineers, supporting business development, and identifying process safety improvements.

Leads the mechanical engineering domain for robotic recovery products, owning mechanical architecture, system integration, design, analysis, prototyping, validation, cost reduction, manufacturability, and production transfer. The role establishes CAD, FEA, tolerance, and design-review standards; partners with electrical, firmware, controls, suppliers, and contract manufacturers; mentors engineers; and supports technology roadmaps. Regular travel to the NYC office and supplier or manufacturing engagements, including international travel, is required as needed.

Lead architecture and hands-on development for Microsoft's virtualization platform, focusing on hypervisor and VMM capabilities. Design, implement, and optimize systems software across Windows, Linux, macOS, Azure, and containers. Improve performance, security, reliability, testing, and operational readiness; diagnose low-level hardware/software issues; enable virtualization on new silicon; mentor engineers; and influence platform strategy across teams and hardware partners.

Leads systems engineering for embedded, electro-mechanical medical devices. Defines requirements, architecture, interfaces, and traceability; leads design reviews, risk management, verification and validation; collaborates across mechanical, electrical, software, quality, and regulatory teams; and supports FDA 510(k), PMA, and EU MDR submissions.

As a Principal Engineer - Steam Turbine, you will lead steam turbine engineering activities, mentor junior engineers, and support business development efforts while participating in client meetings and conferences.

Build and improve Azure Kubernetes Service capabilities for Linux and Windows containers. Develop distributed cloud infrastructure, automation, observability tooling, and reliability improvements at global scale. Support AI-native infrastructure, including GPU orchestration, model deployment, inference, and platform operations. Accelerate engineering workflows, prevent production incidents, integrate AI tools, and contribute to Kubernetes and cloud-native platform innovation.

Leads the design, implementation, integration, and optimization of global enterprise Finance solutions. Responsibilities include ERP solution leadership, Finance process transformation, system integration, data migration, reconciliation, testing, quality governance, deployment readiness, and post-production stabilization. The role also identifies AI automation opportunities and develops governed AI-enabled solutions across ERP, data, API, and workflow platforms while advising Finance, Product, Architecture, and Engineering stakeholders.

Design, develop, deploy, and operate cloud-scale Azure regional networking infrastructure spanning router hardware, operating systems, optical transceivers, and distributed orchestration systems. Lead architecture and cross-team technical initiatives, write maintainable code, improve reliability, observability, performance, and automation, apply AI-driven engineering practices, and mentor engineers while collaborating with hardware, supply chain, datacenter operations, research, vendors, and senior leaders.

Set technical direction for enterprise platform services supporting licensing, entitlements, account administration, onboarding, provisioning, notifications, and partner workflows. Design secure, scalable multi-tenant architectures and lead cross-team technical initiatives from ambiguity to implementation. Improve reliability through observability, testing, safe deployments, incident learning, and operational documentation. Contribute hands-on through design and code reviews, mentor senior engineers, and influence engineering, product, and business stakeholders.

Design, build, and operate resilient AWS cloud infrastructure, Kubernetes platforms, CI/CD pipelines, and infrastructure-as-code modules in a regulated medical-device environment. Improve security, scalability, performance, cost efficiency, deployments, and operational support. Collaborate with Engineering, QA, IT, and Security teams while troubleshooting distributed systems and providing technical leadership across global teams.

Own the architecture, implementation, and operational excellence of major Azure Boost DPU software components. Develop low-level systems software spanning operating systems, virtualization, networking, storage, device management, and hardware interfaces. Lead complex cross-functional initiatives, optimize hyperscale performance and reliability, resolve system-level issues, establish engineering practices, influence platform architecture, and mentor engineers across Azure infrastructure teams.

Own Wagmo’s application architecture across insurance, claims, partner integrations, identity, and AI systems. Establish technical direction, lead architecture reviews, retire legacy systems, design configurable onboarding, and create scalable identity and AI governance architectures. The role requires hands-on coding, strong Python and Django expertise, experience with migrations and third-party integrations, and the ability to influence technical decisions without direct reports while mentoring squad tech leads.

Leads hands-on modernization of Pearson’s content platform, including large-scale migrations, shared platform services, APIs, AI capabilities, cloud infrastructure, security, reliability, and technical roadmaps. Designs and delivers complex systems, writes production code, resolves high-impact incidents, evaluates technologies, and establishes engineering standards. Mentors senior engineers, influences cross-functional stakeholders, and drives initiatives from exploration through launch while balancing scalability, cost, maintainability, and risk.

Lead the architecture and technical direction of Forward Financing’s core fintech platform. Design scalable distributed backend systems, guide cross-team initiatives, establish engineering best practices, resolve incidents, and mentor engineers. The role owns the technical roadmap and architectural vision while partnering across teams to improve reliability, observability, code quality, and delivery. Ruby on Rails expertise is required, along with strong communication, influence, agile development experience, and a broad backend or full-stack perspective.