Top Principal Engineer Jobs in NYC, NY

Lead architecture and hands-on development of Globaledit's Digital Asset Management SaaS platform. Own technical roadmap, optimize performance, reliability, and security, mentor offshore engineers, collaborate with product and executives, review front-end patterns, and drive engineering best practices and AI/ML initiatives.

The Principal Software Engineer will design and implement systems for the advertiser experiences at Snap, lead technical vision, mentor engineers, and innovate on creator marketplace products.

The Principal Software Engineer will design and scale engineering components, lead projects, advocate best practices, and influence technical direction across teams.

As the Principal Engineer for UI, you will lead the modernization of the web platform, transitioning from Ember.js to Next.js, while enhancing development processes with AI integration and ensuring technical excellence.

Design, build, and operate highly available reference/master data systems for a hedge fund. Lead architecture, cloud microservices, LLM/agentic solutions, and cross-functional projects while mentoring engineers and improving reliability, security, and performance.

The Associate Principal Engineer will provide strategic value through extensive IT experience and in-depth knowledge, fostering innovation and breaking new ground in product development.

Lead design and build of scalable backend systems and data platforms; own architecture and production deployments; improve reliability, performance, and observability; mentor engineers and collaborate with Product, Data Science, SRE, and Security.

The Principal Software Engineer will architect shared application libraries, improve CI/CD pipelines, mentor engineers, and drive technical direction across mobile and OTT platforms for NBC News.

The Principal Systems Engineer will oversee architectural direction for infrastructure, mentor engineers, and ensure reliability and performance outcomes.

Lead the design and execution of radar sensing platforms and wireless communication sub-systems, overseeing development, optimizing designs, and ensuring quality and compliance. Collaborate across teams and mentor members while troubleshooting complex issues in RF/mmWave design.

The Principal Software Engineer will design automated ad serving systems, lead technical direction, collaborate with teams, and mentor engineers.

Lead frontend architecture and implementation for a high-performance SPA and Node.js BFF. Solve algorithmic, concurrency, and memory challenges, optimize performance and builds, drive observability, security, and CI/CD, mentor engineers, and collaborate with product, UX, and SRE teams to deliver resilient, distributed real-time collaborative features.

Design and build complex low-latency trading applications, develop cloud services, implement automated processes, and optimize system performance.

Lead the technical vision for Mastercard's corporate platforms, modernizing systems and data architecture, ensuring compliance and driving innovation.

The role involves enhancing application security for Radar, managing security for over 1 billion API calls daily, and collaborating with customers.

Lead Android migration and launch across Cash Line and Unsecured Installment products. Define mobile architecture, partner with product/design, mentor engineers, deliver high-quality native Android and React Native solutions, and continue as a mobile specialist post-launch to improve performance and scalability.

The Principal AI/ML Engineer will develop machine learning models for campaign optimization in AdTech, collaborating across engineering and product teams to enhance advertising capabilities.

The Principal Cloud Support Engineer at Wasabi leads technical support, mentors engineers, resolves complex issues, and advises enterprise clients, focusing on cloud storage solutions.

Lead technical architect and hands-on principal engineer for the SOC Experience team, building scalable investigation workflows, agentic LLM features, automation, remediation actions, and analyst tooling. Drive architecture, mentor engineers, prototype solutions, ensure reliability and observability, and partner with product, UX, and SOC stakeholders to turn operational problems into auditable, production-grade systems.

The role involves leading security initiatives, building security tools, conducting vulnerability assessments, and collaborating with teams to enhance cloud security and risk management.

The Principal Electrical Systems Engineer will lead the development of prototypes, design reusable modules, and evaluate new technologies for future product platforms, collaborating across teams.

The Principal DevOps Engineer will lead the design and operation of CI/CD pipelines, platform reliability, and compliance for software deployment, while influencing DevOps practices and simplifying operational management across teams.

Lead the design and execution of a new enterprise data platform, ensuring metrics reliability and supporting AI-driven products, while mentoring engineers and collaborating across teams.

As a Principal Data Engineer, you will design and implement LLM, AI-powered security data platforms, mentor engineers, and drive the adoption of data solutions across teams.

Develop algorithms for autonomous driving and create software for safe and intuitive motion planning. Collaborate with perception and control components, and mentor team members.