Top Tech Jobs & Startup Jobs in New York City, NY

The Property Accountant will ensure accounting integrity for resident ledgers and accounting workflows in multifamily housing. Responsibilities include advising on rent, concessions, deposits, subsidies, delinquencies, utilities, move-ins and month-end close; translating accounting workflows into product requirements; validating calculations and terminology; leading testing and UAT; and documenting standards and best practices. The role requires close collaboration with client accounting, operations and leasing teams in an in-office environment.

Leads strategic relationships with large health systems and healthcare aggregators, driving account growth, retention, product adoption, cross-selling, and expansion. Serves as a trusted executive advisor, develops account plans, conducts business reviews, monitors campaign performance, and coordinates sales, implementation, and customer success teams. This field-based role requires frequent travel, strong consultative selling, executive communication, strategic planning, and healthcare practice knowledge.

Design, develop, and operate software platforms that automate CoreWeave’s network, including configuration generation, device provisioning, workflow automation, observability, CLIs, and APIs. Write tested Python and Go code, improve service reliability, define SLIs and SLOs, participate in on-call operations, lead architecture decisions, plan complex projects, collaborate across infrastructure teams, and mentor engineers.

Leads marketing and loyalty analytics strategy, measurement frameworks, forecasting, experimentation, campaign reporting, retention analysis, churn modeling, segmentation, and LTV analysis. Partners with Marketing and Finance to connect performance metrics to business goals, automate reporting, and deliver actionable recommendations. Requires strong SQL and Python skills, causal measurement expertise, marketing platform experience, and the ability to communicate insights to senior stakeholders.

Supports treasury controllership for blockchain, digital payments, crypto assets, stablecoins, and complex transactions. Prepares technical accounting assessments, evaluates U.S. GAAP and SEC reporting implications, coordinates audits, supports financial reporting, and strengthens SOX controls and governance. Partners across Treasury, Finance, Tax, Legal, and business teams to improve processes, documentation, automation, and reporting while advising leadership on accounting and control matters.

Provides strategic U.S. and global employment law advice to Mastercard’s People & Capability team. Responsibilities include counseling on employee matters, compliance, accommodations, compensation, restructurings, investigations, litigation, contracts, M&A integration, policies, training, and regulatory developments. The role also manages outside counsel, supports cybersecurity acquisition integration, and develops scalable legal resources across a global organization.

Leads strategy execution, analytics, growth initiatives, acceptance modeling, and performance management for Mastercard’s North America Digital Partnerships and Fintech sales segment. Partners with executive and cross-functional teams to assess opportunities, mitigate risks, develop go-to-market strategies, and support strategic priorities. Manages three sales analysts, promotes best practices, and provides data-backed recommendations to senior leadership.

Drive enterprise revenue growth by identifying, prospecting, and closing new-logo business. Responsibilities include presenting and demonstrating solutions, consultative selling, negotiating complex deals, managing the sales pipeline and forecasts in CRM tools, cultivating executive relationships, researching market trends, and collaborating with pre-sales, marketing, solution consulting, and client success teams.

Create polished, production-ready visual designs for dense financial trading and risk-management applications. Translate wireframes and AI-generated prototypes into high-fidelity Figma designs, apply visual standards, and prepare developer-ready specifications. Contribute reusable components, tokens, patterns, and documentation to the CWAN Design System. Collaborate with product designers, product managers, and engineers, while using AI tools such as Figma AI and Claude to accelerate design production and documentation.

Own full-stack software projects from scoping through delivery, building and maintaining tested Python and React applications using the Glint SDK. Use AI agents responsibly, implement unit, integration, and end-to-end testing, review code, mentor colleagues, lead technical discussions, resolve production incidents, and collaborate across teams to deliver reliable, scalable, secure solutions for clients.

Supports the President, COO, and senior leaders by managing calendars, travel, meetings, expenses, documents, events, and confidential information. Coordinates office operations including supplies, lunches, deliveries, interviews, onboarding, and workspace readiness. Partners with People Operations, Finance, IT, and Office Operations while handling multiple priorities with discretion and professionalism. This role requires on-site work four days per week in New York City.

Build and maintain native Android experiences using Kotlin, scalable mobile frameworks, reusable UI components, and modular architecture. Own initiatives from product discovery through launch, collaborate with product, design, and backend teams, and improve architecture, testing, monitoring, and engineering standards. Develop secure, performant financial products while contributing to code reviews and platform components.

Lead silicon photonics and heterogeneous integration development from concept through manufacturing readiness. Responsibilities include process-flow integration, photonic device and advanced packaging development, DOE execution, process characterization, yield improvement, defect reduction, root-cause analysis, design-rule development, tapeouts, technology transfers, technical roadmaps, and AI-enabled engineering initiatives. The role collaborates with design, device, packaging, manufacturing, and supplier teams to deliver optical connectivity technologies for high-performance computing and AI infrastructure.

Senior Product Designer responsible for shaping platform-wide experiences across Zeta’s marketing, AI, agentic applications, and data products. The role emphasizes scalable design systems, data visualization, AI-driven interaction patterns, motion, prototyping, and close collaboration with product and engineering. The designer will mentor teammates, influence standards, present work to executives, and deliver intuitive experiences for complex technical workflows.

Leads product strategy, roadmap, and delivery for Zeta’s customer acquisition business. Translates client and commercial needs into scalable product capabilities, partners with engineering and platform teams, and applies identity, data, AI, activation, and measurement technologies. Owns email acquisition experiences, including ESP integrations, targeting, deliverability, campaign execution, optimization, and measurement. Drives cross-functional alignment, launches, adoption, and reusable solutions across Zeta.