Top Senior Software Engineer Jobs in NYC, NY

Lead engineering efforts at Headway, designing software architecture, mentoring teams, and shaping technical requirements to build a mental health care platform.

Design and build UIs and features for Oso's authorization service, enhance user experience, and engage with users for support.

The Lead Java Software Engineer will architect and build scalable risk and pricing systems, mentor teams, ensure engineering excellence, and meet regulatory compliance in a high-pressure environment.

As a Senior Associate, you'll design and develop microservices, build user-friendly UI components, and manage applications on Azure, leveraging AI tools while collaborating with various teams.

Design and develop high-performance real-time data pipelines for processing financial market data, ensuring low latency and high throughput.

As a Software Engineer at Citadel, you will build systems for investments, collaborate with researchers, and tackle complex problems.

The role involves redesigning software development with AI and automation in a senior engineering position, focusing on improving SDLC efficiency and tool adoption across teams.

This role involves leading software engineering projects, designing scalable systems, mentoring junior engineers, and collaborating on trade processing for Capital Markets.

Build frontend experiences, contribute to design decisions, mentor junior engineers, and engage with customers to address complex challenges.

Design and build scalable backend architecture, mentor junior engineers, and ensure data synchronization for customer SaaS tools while engaging with clients to solve complex problems.

As a Software Engineer on the Compute team, you will build and optimize systems for data processing, SQL querying, and improve the performance of code execution. You will tackle complex engineering challenges spanning backend data systems to frontend applications, ensuring efficiency and usability.

The job involves architecting, building, and refining Gusto's Android app, enhancing user experience, collaborating with teams, and scaling services while maintaining mobile infrastructure.

The Senior Full Stack Software Engineer II at Upside is responsible for developing high-quality software, collaborating with cross-functional teams, mentoring other engineers, and driving improvements in system performance and quality.

The software engineer will build and operate infrastructure for AI agents, ensuring reliability, scalability, and security. Responsibilities include managing LLM services, developing storage systems, and enhancing observability while collaborating cross-functionally.

As a Software Engineer on the AI Products Team, you will build features, improve LLM models, develop infrastructure, engage with customers, and shape team culture.

As a Software Engineer/Senior Software Engineer, you'll design, develop, and maintain high-quality software solutions, focusing on API development and technical excellence while collaborating with teams.

Design, build, test, and scale Gusto's native iOS app and supporting mobile web views. Collaborate cross-functionally to develop product features, platform components, push notification and localization services, and maintain iOS infrastructure including build pipelines, testing automation, and release processes.

Lead a diverse tech team to drive regulatory solutions, collaborate on cloud-based products, mentor engineers, and code as needed.

The Software Engineer, Backend will develop scalable distributed systems, build REST APIs, and ensure high-quality software delivery while collaborating with teammates and stakeholders.

Design, maintain, and evolve core backend systems and APIs. Collaborate with product teams to create durable and reusable systems while enhancing performance and security.

The Full Stack Software Engineer will design, develop, and maintain AI-powered applications, collaborating with cross-functional teams to create seamless user experiences.

Senior Full-Stack Software Engineer position focusing on building, shipping features, and improving code quality using React, TypeScript, and Ruby on Rails.

The Software Engineer - Cloud will design and improve cloud infrastructure and data pipelines, develop AI and tooling solutions to enhance recycling operations using machine learning.

The Senior Trading Software Engineer will optimize performance-critical code, collaborate with trading engineers, implement low-latency solutions, and enhance trading systems.

The Senior Options Software Engineer will design, develop, and support a high-performance trading platform, collaborating with business leaders to create innovative software solutions and handle complex systems support for trading activities.