Top Software Engineer Jobs in NYC, NY

Design and build AI-centric full‑stack TypeScript web applications (SPAs and APIs). Collaborate on product and architecture, own technical decisions, mentor peers, perform code reviews, and manage project priorities and deliverables.

The Senior Full Stack Software Engineer will design and develop scalable web applications, work across the stack, collaborate with teams, and integrate AI features while mentoring junior developers.

Design, implement, and optimize high-performance iOS features and apps using Objective-C and related technologies. Work with design teams, conduct code reviews, evaluate tradeoffs, leverage AI tools to accelerate development, and ensure performance, multithreading, and low-power optimizations for Snapchat's camera experiences.

The role involves designing and shipping new database features, collaborating on technical solutions, and improving code quality in a team environment.

The Software Engineer will enhance trust and security in Notion's features, build AI-powered systems for risk detection, and collaborate across departments to ensure data privacy.

The Senior Backend Software Engineer develops secure APIs utilizing Kensho's AI capabilities, collaborates across teams, and mentors colleagues while managing project deadlines and deliverables.

Design, develop, and enhance secure, scalable software applications using modern programming languages and cloud-native technologies. Collaborate with product, design, and engineering across the SDLC, apply Agile and DevOps practices, and leverage automation and AI-driven tools to improve productivity and code quality.

Design, implement, test, and maintain Android applications using Kotlin and Java. Produce secure, high-quality production code, architecture artifacts, and data-driven insights. Use enterprise-authorized AI-assisted development tools responsibly, validate AI outputs, and contribute to team best practices and automation to improve reliability and delivery.

As a Full-Stack Engineer, you will learn and help build new product features, contribute to backend systems, and support AI-driven workflows for CPG brands.

Develop, design, and troubleshoot components of business banking applications. Write secure, high-quality full-stack code (Java/Spring Boot/React), work with microservices, REST APIs, and Kafka, apply SDLC and CI/CD practices, analyze data to identify issues, and support application stability and security within an agile team.

Design and deliver secure, scalable full-stack applications using Java/Spring Boot and React. Produce architecture artifacts, develop and maintain production code and microservices, analyze large datasets for improvements, ensure CI/CD, resiliency and security, and contribute to agile engineering practices and communities.

11-week software engineering internship building high-performance, large-data research platforms and trading tools. Work in small teams on system architectures, distributed systems, NLP and ML, and web frameworks while collaborating with senior engineers.

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

As a Software Engineer in Growth, you'll develop full-stack features, collaborate on product strategies, and drive key business outcomes through data-driven experimentation.

Design, build, and optimize full-stack mobile and desktop web applications. Implement user interfaces, contribute to shared libraries, log and analyze metrics, use AI tools to accelerate development, and maintain high standards for code correctness, security, testing, performance, and scalability.

Design, implement, and operate critical, highly scalable backend services (identity, friend graph, persistence). Collaborate across teams, ensure availability, scalability, operational excellence, and cost management. Build, test, debug, and participate in incident resolution while leveraging AI tools to accelerate development and maintain secure, production-ready code.

Lead technical vision and reusable solutions across cloud-native banking systems. Drive architecture, performance, scalability, mentoring, cross-team influence, and deliver high-quality implementations and thought leadership.

Build end-to-end fullstack features for a mental healthcare platform: design APIs and UIs, manage clinical and practice-management systems, integrate AI capabilities, and own product outcomes from schema to frontend.

Lead design and implementation of the payment and clearinghouse platforms powering Headway's revenue flows. Build fault-tolerant, observable integrations (Stripe, Plaid, payers), create abstractions for adjacent teams, mentor engineers, and write high-impact code to ensure reliability, throughput, and correct reconciliation of transactions at scale.

Design and build reliable backend services powering clinical data, insurance billing, patient-facing infrastructure, and financial ledger systems. Scale high-integrity systems requiring idempotency, strong consistency, and pragmatic AI integration to automate provider workflows and enable personalized patient experiences.

Headway seeks a Staff Fullstack Engineer to own end-to-end product work across frontend and backend. You’ll build practice management, patient/provider engagement, AI-enabled clinical systems, onboarding, growth tools, and platform foundations. The role requires technical leadership, cross-functional strategy, mentoring, and shipping scalable, reliable systems in a complex healthcare domain.

Join Current as a Software Engineer to build backend services in a microservices architecture, participate in system design, and deliver impactful features. Requires 2+ years of backend experience, preferably with Java.

Design, implement, and operate large-scale backend services (identity, friend graph, persistence). Collaborate across teams to evaluate trade-offs, ensure availability, scalability, and security, participate in incidents, and use AI tools to accelerate development while maintaining code quality and operational excellence.

Designs, develops, debugs, and maintains secure, scalable Java/Spring microservices. Produces architecture artifacts, implements CI/CD and testing, leverages enterprise AI-assisted development tools, and analyzes data to improve code quality, resiliency, and system architecture.

Designs, develops, tests, and maintains secure, scalable Java-based applications. Produces architecture artifacts, implements automated unit tests, analyzes large datasets, and improves system resiliency within agile teams.