Top Software Engineer Jobs in NYC, NY

Design, build, test, and maintain secure Android applications using Kotlin and Jetpack Compose. Deliver high-quality production code, troubleshoot issues, adopt AI-assisted engineering practices, automate remediation, and drive architecture and vendor evaluations to improve stability and delivery.

Design, build, and maintain high-throughput, low-latency backend APIs and microservices for flight search, booking, payments. Own features end-to-end, ensure resiliency with testing and observability, collaborate with cross-functional partners, and modernize cloud-native systems at scale.

As a Front-End Software Engineer, you will build AI-powered interfaces, tackle complex design problems, and collaborate across teams to enhance user experiences. Responsibilities include mentoring, implementing responsive UI, and engaging with AI technologies.

Lead the rollout and ongoing ownership of Go as a first-class backend platform at production scale. Build reliable, scalable service patterns, developer tooling, golden paths, and guardrails; improve CI, deployments, observability, and developer workflows; and deliver a Go platform v1 that enables production teams to operate services at scale within 90 days.

Frontend engineer building defense-focused applications that integrate Palantir Foundry and AIP with backend services and modern web stacks. Own and deliver user-facing features, work closely with customers and deployed engineers, contribute to shared libraries and tooling, mentor teammates, and iterate rapidly in autonomous, high-ownership teams. Must be adaptable and willing to obtain U.S. security clearance.

Build and maintain cross-application frontend frameworks enabling real-time communication between Palantir apps. Work with core web APIs (Broadcast Channels, Service Workers, Local Storage) and Electron (IPC) to design ergonomic, portable APIs and UX. Collaborate across teams to integrate frameworks, develop Electron app features, and ensure performance and extensibility.

Work directly with government customers to design and implement data-driven solutions, owning end-to-end projects. Tasks include architecture, data engineering, web app development, customer engagement, and deploying software onsite with travel.

FDSE Interns work in small teams to design and implement data-driven solutions for customers, owning end-to-end projects including architecture, large-scale data wrangling, web app coding, and customer engagement. Interns receive mentorship, travel to client sites as needed, and are treated like full-time engineers.

As a Backend Software Engineer, you will design and implement scalable services, focusing on API design and system architecture while mentoring team members.

The Senior Software Engineer will design and support Kubernetes infrastructure, develop applications in Go, and enhance platform reliability, performance, and observability in CoreWeave's AI-focused environment.

As a Video Engineer at Whatnot, you'll enhance the platform's video services, develop seller tools, and implement innovative video strategies to improve user engagement and experience.

Join the Engineering team to develop AI-driven software for analyzing vast amounts of medical data, ensuring security and privacy. Collaborate across disciplines and contribute to innovative healthcare solutions.

As a Software Engineer in Data, you will enhance core product experience, optimize integrations, manage data systems, and support scalable services.

The role involves developing ML systems, designing low-latency infrastructure, and collaborating on AI/ML initiatives while ensuring reliability and performance at scale.

Design and implement large-scale, global realtime systems for video, voice, and data. Work with product and customers to gather requirements, instrument and monitor services, create dashboards, tune performance, research and implement Internet standards, and leverage modern systems languages and AI tools.

Own product features end-to-end across web app, GraphQL API, and embeddable components. Design schemas and APIs, build backend and frontend, write tests, monitor real-user behavior, and ship weekly. Establish shared component library, design system, and testing patterns. Optimize performance and leverage AI tooling to accelerate engineering and product collaboration.

Design, develop, test, and maintain secure, high-quality Java-based microservices on AWS. Produce architecture and design artifacts, troubleshoot complex technical issues, analyze large datasets for improvements, and contribute to team best practices and engineering communities.

Develop, design, and troubleshoot secure, stable, scalable software components using Java/J2EE and AWS. Apply AI-assisted development tools, SDLC practices, microservices, REST APIs, and agile/CI/CD methodologies while ensuring resiliency and security.

Full-stack Software Engineer II delivering secure, scalable Java/Spring Boot and React.js applications. Design, develop, test, troubleshoot components, apply SDLC tools (CI/CD), microservices patterns, and leverage AI and cloud technologies while contributing to team culture.

Design, implement, and operate complex Java/Spring backend services and user-facing features in a microservices, event-driven environment. Ensure production readiness, observability, security, and resilient architectures; author design proposals; participate in code reviews, pair programming, CI/CD, and AI-assisted development workflows.

Build high-performance trading tools and large-data research platforms in small teams. Design system architectures, develop resilient production software, and apply distributed computing, NLP, and machine learning to solve complex quantitative problems while collaborating with engineers, traders, and researchers.

Design and implement Android features from design through launch, optimize mobile UX and performance, perform code reviews, evaluate technical tradeoffs, and use AI tools to streamline development while maintaining security and production-quality code.

11-week software engineering internship building high-performance research platforms and trading tools. Work in small teams to design systems, develop platforms and web frameworks, and apply distributed computing, NLP and machine learning. Collaborate with senior engineers, network with peers, and contribute code that rapidly moves into production.

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

Develop high-performance research platforms and tools that bring trading strategies to life. Work in small teams to design, build, and deploy resilient systems using distributed computing, NLP, and machine learning to solve large-data problems in finance.