Top Principal Software Engineer Jobs in NYC, NY

The Principal Software Engineer will design, develop, and implement complex solutions for the FedNow service, providing technical leadership and ensuring high-quality software across various technologies.

The role involves leading initiatives for vector search in Elasticsearch, enhancing features, resolving bugs, and contributing to community engagements in a distributed team setting. A strong background in vector similarity and Java is crucial.

The Principal Software Engineer will build product features, design solutions for members, and improve the technology platform collaboratively with the team.

Lead the frontend development of the PayPal Ads platform by designing and optimizing systems that enhance advertiser-consumer interactions across web and mobile platforms.

The Principal Software Engineer will lead integration domains, make architectural decisions, mentor engineers, and drive AI-driven solutions for cybersecurity tools.

The Principal Software Engineer will lead software architecture, design, and development for genetic testing systems, collaborating across teams to deliver robust solutions that enhance patient care.

Lead design, architecture, and hands-on implementation of scalable healthcare SaaS systems. Drive interoperability (HL7, FHIR, EDI), mentor engineers, liaise with stakeholders, manage technical risk, and ensure quality, performance, security, and innovation.

Lead the architecture of Commerce Hub by defining core domain models, building intricate systems, and mentoring engineers while influencing product strategy.

The Principal Software Engineer will lead architectural direction, integrate AI capabilities, mentor engineers, and tackle complex technical challenges for scalable systems.

Lead the frontend architecture at Akoya, focusing on design quality, and building scalable user interfaces with React and TypeScript. Collaborate with cross-functional teams to deliver high-quality user experiences while mentoring other engineers.

Lead architecture and technical direction for Ruby on Rails and React systems, design scalable APIs and front-ends, own services/databases/infrastructure (MariaDB, Redis, Elasticsearch), use Kubernetes for scaling, integrate AI-assisted development workflows, mentor engineers, and deliver secure, well-tested production releases.

The role involves leading technical initiatives in automating network engineering for Elastic's infrastructure, developing cloud network solutions, and collaborating in a team-focused environment to enhance platform reliability.

As a Principal Software Engineer, you will lead and develop innovative technology solutions for the banking industry, focusing on Calypso platforms, Agile methodologies, and software development best practices.

The Principal Software Engineer will lead the modernization of seller applications, set technical strategy, and mentor engineers while driving architecture and engineering practices in a cloud-native environment.

Lead the development of a robotics data platform, focusing on data enablement, API architecture, and mentoring engineers in complex system designs.

As a Principal Software Engineer, you will lead the Containers team to develop features, improve tooling, maintain quality, and mentor engineers while shaping technical direction for Chainguard Images.

Design and develop scalable features for secure software. Advocate for quality standards and engage with customers. Work remotely with a focus on product improvement.

The role involves designing and developing secure software solutions, focusing on innovative sensor technology for Linux environments, and enhancing customer adoption through collaboration.

The Principal Software Engineer will build systems for safe software deployment, enhance developer frameworks, and ensure reliability in code delivery.

Design, develop, and maintain scalable software solutions. Collaborate with teams to troubleshoot issues and enhance the software delivery lifecycle. Focus on backend services, using Java and various tools for performance optimization.

As a Principal Software Engineer at Vanta, you'll lead engineering initiatives for the Governance, Risk, and Compliance product, mentor teams, and drive significant business impact through strategic technical direction and infrastructure development.

The Principal Software Engineer will lead D2C Growth initiatives at Aura, shaping customer acquisition strategies and mentoring engineering staff while designing innovative optimization and personalization platforms.

Design and develop scalable backend systems for SaaS applications, mentor engineers, and lead projects while collaborating with cross-functional teams.

The Principal Software Engineer will lead technology and software development, focusing on systems architecture, AI, and robotics. Responsibilities include cloud integration, managing projects, and protecting intellectual property.

The Sr./Principal Software Engineer will design and implement core capabilities for SingleStore's cloud platform, focusing on scalability and reliability, while mentoring other engineers and collaborating with cross-functional teams.