Top Lead Software Engineer Jobs in NYC, NY

Lead enterprise software architecture and full-stack development across operations, supply chain, finance, commercial, and digital functions. Design scalable cloud-native platforms, API-first and event-driven integrations, and resilient enterprise systems using AWS and modern engineering practices. Advise on technology strategy, improve software quality and operational excellence, and mentor engineers. Partner with business and technical leaders to deliver supply chain, procurement, CRM, ERP, and e-commerce capabilities at scale.

Lead design and delivery of a web channel framework using React/TypeScript. Drive engineering standards, testing (unit to end-to-end), CI/CD, performance optimization, RESTful services, and cross-functional agile collaboration to build a scalable SPA platform.

Lead development of scalable, secure Java/AWS solutions. Design, implement, and optimize applications and cloud infrastructure, drive DevOps and IaC practices, lead production incident response and root-cause analysis, adopt AI-assisted engineering tools responsibly, and evaluate emerging technologies and vendors.

Lead a hands-on software engineering effort for Zeta’s real-time events pipeline. Design, build, deploy, and operate high-volume event ingestion, processing, and delivery systems. Own architecture, reliability, observability, performance, cost, data quality, and on-call improvements. Collaborate with Product, Data, and downstream platform teams, define stable interfaces and SLAs, evaluate technologies, lead production launches, and mentor engineers through design and code reviews.

Lead an agile team to design, build, and operate low-latency, high-availability Python applications for Rates trading desks, owning architecture across data ingestion, calculation services, UI, and operational tooling. Partner with traders, drive technical decisions, improve CI/CD and observability, mentor engineers, and ensure production correctness, performance, and resiliency under tight timelines and high business impact.

Lead an agile engineering team to design, build, and operate secure, scalable software. Provide technical direction, write and review production code, champion enterprise AI-assisted development practices, drive SDLC improvements, and manage cloud-native deployments and monitoring across AWS and data platforms.

Lead backend engineering for cloud-native, multi-cloud fintech products. Design scalable, reliable, and secure systems using domain modeling. Build testable, operable code, resolve production incidents, optimize performance and data access, and enable zero-downtime releases. Mentor teammates, drive technical direction, and continuously modernize technologies and patterns.

Lead technical design and deliver secure, scalable C#/.NET software for trading systems. Drive architecture, coding, code review, automation, resiliency, CI/CD, and adoption of AI-assisted engineering practices while mentoring teams and engaging vendors.

Leads a software support team responsible for production reliability, defect triage, code maintenance, deployments, vulnerability remediation, testing, and operational response. Develops and reviews code, coordinates Agile delivery, monitors production concerns, communicates risks, and partners with engineering, infrastructure, IT, QA, product, and customer experience teams to maintain secure, supportable digital learning applications.

Leads hands-on development of full-stack applications using .NET, React, Next.js, and Azure. Owns architecture, coding, code reviews, testing, security, reliability, observability, production support, and cloud deployment. Integrates AI and GenAI capabilities such as LLM features, RAG, semantic search, and agentic workflows. Mentors engineers, establishes technical standards, collaborates with stakeholders, supports hiring, and helps deliver scalable, secure software.

Lead design, build, and operate scalable, secure cloud platform capabilities. Develop Java/Spring Boot services, implement IaC with Terraform, run Kubernetes in HA, deliver CI/CD, apply SRE practices, use observability/APM tooling, and prototype AI/agentic workflows. Mentor engineers and enforce reliability, security, and compliance.

Design and develop backend services and APIs for identity resolution, optimize event-driven systems, and enhance system reliability. Mentor engineers and influence architectural decisions.

Leads end-to-end modernization from a monolith to microservices, including legacy analysis, architecture, estimation, data migration, deployment, and production support. Guides .NET services, databases, messaging, containerization, and frontend integrations. Acts as the technical escalation point for complex issues while improving Jira tracking, estimation accuracy, QA collaboration, release predictability, and engineering processes. Manages and develops the team through one-on-ones, performance reviews, feedback, and career-focused objectives.

Lead ownership of Belfry's React Native/Expo mobile app and React web platform; establish frontend best practices, design systems, observability, and performance standards; contribute across the full stack (APIs, backend, integrations); deploy and scale production systems; mentor engineers and promote AI-assisted development workflows.

Lead a product squad in designing, building, and operating full-stack web applications. Own architecture, data models, APIs, interfaces, production support, technical standards, reliability, observability, and technical debt reduction. Mentor engineers, conduct code and architecture reviews, break down initiatives, and guide delivery. Partner with engineering, product, and QA leaders to shape requirements, manage risks, improve quality, and align technical decisions with business goals.

Leads and grows a six-person travel engineering team responsible for search, booking, checkout, policy evaluation, loyalty, post-booking servicing, and mobile travel experiences. Owns reliability across supplier APIs, GDS, TMC, and OBT integrations; partners with product, design, operations, partnerships, and sales; drives enterprise travel commitments; evaluates architecture; and ships AI-assisted and agentic booking capabilities.

Design, build, deploy, and maintain resilient, scalable production systems for Toast’s retail customers. The role sets long-term technical architecture and strategy, communicates technical direction, mentors senior engineers, improves engineering productivity, diagnoses performance issues, and drives initiatives amid ambiguity. Engineers collaborate directly with retail customers, visit stores, understand operational workflows, and use AI tools to improve development velocity and quality.

Lead technical design, build, and operate scalable, secure healthcare integration systems. Drive architecture, event-driven distributed systems, APIs, observability, IaC, CI/CD, incident response, cross-functional delivery, and mentor engineering teams.

Lead technology strategy and architecture for Corporate Actions, Class Actions, and Securities Lending platforms. Oversee 20+ application teams to modernize legacy systems to cloud-native, API-first, service-oriented, and event-driven architectures. Champion AI-assisted development, DevSecOps, CI/CD, observability, and delivery governance. Drive vendor evaluations, cross-functional partnerships, engineering performance metrics, and talent development to deliver scalable, secure, and resilient enterprise solutions.

Lead development and operation of a scalable Kubernetes-based cloud-native platform. Shape the engineering roadmap, deliver enterprise platform capabilities, establish best practices, mentor engineers, and collaborate across Agile teams. Build highly available and fault-tolerant production services using Kubernetes and cloud-native technologies, while applying expertise in Go, Python or Bash, networking, Linux, and CI/CD practices.

Lead technical efforts to build maintainable applications and infrastructure, mentor engineers, and ensure timely project delivery.

Lead the design and development of MediCircle's backend architecture and product features while managing full stack responsibilities and integrating AI technologies.

Leads the design, development, testing, and deployment of scalable Java applications and distributed systems for an indices prototyping platform. Responsibilities include building microservices, using AWS cloud services, implementing containerization, improving performance and reliability, developing user interfaces, fixing defects, maintaining code quality and automation, and mentoring junior engineers.

Lead the architecture and implementation of scalable cloud compute functionality across ARM64 and x86 platforms. Design hypervisor layers, cross-platform build pipelines, and performance optimization solutions while writing, reviewing, documenting, and testing production software. Coordinate globally to deliver compute features and resolve low-level software issues. Provide technical, organizational, and functional leadership to engineers.

Lead technical direction and hands-on execution for major products and systems. Design scalable, reliable architectures across backend, frontend, APIs, databases, and infrastructure; write code; make architecture trade-offs; solve complex production issues; improve engineering quality; lead critical initiatives; and mentor engineers across teams.