Top Tech Jobs & Startup Jobs in NYC, NY

Firework seeks dynamic individuals passionate about connected commerce. Join a growing team to innovate in digital shopping experiences.

Lead design and orchestration of AI-first agent workflows to produce application code, infrastructure, and tests. Architect full-stack systems and MCP servers, validate AI-generated outputs for correctness, security, and performance, build verification pipelines and observability, mentor teams, and evolve AI-First SDLC and governance practices.

Seeking a skilled Data Scientist/Machine Learning Engineer to develop machine learning models, design AI systems, and collaborate in data analytics. Responsibilities include productionizing models, data engineering, and cross-functional collaboration.

Build and lead Vitalize's marketing function end-to-end: define strategy, generate enterprise pipeline, align with Sales, drive product positioning and launches, convert customer outcomes into advocacy, hire and develop the marketing team, and scale systems and processes to make marketing a primary growth engine.

Own HashSphere's up-market product roadmap for tokenization and markets, translate Tier-1 financial institution requirements into engineering-ready features, support enterprise sales cycles (technical evaluations, InfoSec, RFPs), partner with Asseto and ioBuilders, run customer discovery and prototypes using AI tools, and codify repeatable GTM plays for enterprise FSI use cases.

Design, develop, maintain, and extend healthcare billing and enrollment software. Collaborate with architects and engineers on APIs and architecture, triage production issues, write unit tests, perform impact analysis, research solutions, follow secure coding practices, and mentor junior engineers on an Agile scrum team.

Support strategic communications and community engagement for energy projects: draft and edit public-facing materials, assist media monitoring and branding, conduct permitting research, maintain stakeholder tracking, help plan and attend public engagement events, and support team outreach activities.

Administer and optimize Genesys Cloud CX and WFM/dialer systems for a high-volume blended contact center. Manage campaigns, forecasting, scheduling, real-time adherence, compliance, UAT, data imports, and cross-team improvements to drive KPI performance and regulatory compliance.

Freelance Opinion & Features Editor to commission, edit, and produce 8–12 monthly opinion pieces, edit staff features, recruit contributors, attend weekly editorial meetings, and serve as newsletter backup. Part-time, remote, contractor role (~65–70 hrs/month) on a three-month renewable retainer.

Design, train, optimize, and deploy LLMs for offline and on-prem environments. Build end-to-end LLM pipelines: data preprocessing, SFT, LoRA/Q-LoRA, quantization, RAG, vector stores, MCP integrations, and inference systems. Implement document parsing, GPU optimization, CI/CD for local ML workflows, and maintain model registries and versioning in restricted networks.