Top Software Engineer Jobs in NYC, NY

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

Design, build, and maintain Soroban smart contracts and backend services integrating Stellar, EVM, and Solana. Scale on-chain infrastructure for high-volume transactions and real-time processing, drive architecture and roadmap, and ship features iteratively.

Design, build, and maintain Solana programs and backend services that integrate with Solana, EVM, and Stellar. Scale on-chain infrastructure for high-volume transactions and data ingestion, drive architecture and product roadmap decisions, and ship secure, reliable capabilities to customers.

Collaborate with business and engineering teams to implement scalable user interfaces, backend services, and risk management systems with a focus on real-time metrics.

The Software Engineer will build, test, and deploy software, lead system architecture, and partner with teams to design solutions for fund management.

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.

Develop backend software for APIs, collaborate with teams on architecture and implementation, maintain software, and conduct code reviews. Requires experience in SaaS applications and effective communication skills.

The Software Engineer in Product Infrastructure will shape core frameworks, design new systems, solve complex technical challenges, and improve developer productivity by integrating various technologies like AWS and TypeScript.

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.

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.

As a Backend Software Engineer II, you will design and develop software, collaborate on APIs, and improve system performance while sharing knowledge within the team.

As a Backend Engineer at Kalshi, you will design algorithms for order matching, optimize data access, and lead integrations with external clients, contributing to a fast-growing financial market.

As a Frontend Engineer, you'll build and enhance the trading experience, develop user-facing features, and engage with customers to shape product decisions.

As a Software Engineer at Kalshi, you'll manage the data stack, focusing on data pipeline development, ETL processes, and collaboration with data scientists and product teams.

Design and implement backend services and APIs, develop systems for personalization and recommendations, and collaborate with product teams to enhance the platform.

Build and scale consumer finance web and mobile features end-to-end using React/React Native and Java services on Google Cloud. Improve performance, design GraphQL/REST APIs, optimize SQL schemas, integrate third-party services, implement risk and transaction algorithms, automate testing and CI/CD, and enhance internal tools to support millions of users.

Ship end-to-end full-stack features for core marketplace flows (search, details, booking, post-booking). Implement UI, APIs, data models, instrumentation, and observability. Improve performance, reliability, testing, and operational readiness while partnering with Product, Design, and backend engineers.

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.

Forge is seeking a Software Engineer II to design and maintain web applications, develop APIs, and ensure system operations. The role requires collaboration and strong engineering skills.

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.

Develop and build software to enhance business operations in housing and healthcare, focusing on scalable systems and user experiences.

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

Interns design and develop full‑stack software for privacy, data protection, AI governance, and accountability. Work includes building platform primitives, auditor applications, user workflows, and internal data‑protection tools. Collaborate with technical and non‑technical teammates, own end‑to‑end projects, and engage with legal and policy developments to guide technical approaches.

Contribute production-quality code to Palantir products (Gotham, Foundry, Apollo) across the full lifecycle. Work on backend or frontend components, collaborate with cross-functional teams, learn from a mentor, and engage with users to build data-driven features.