Top Tech Jobs & Startup Jobs in NYC, NY

Own the cryptographic core: select and evolve MPC/TSS schemes, author protocol reviews, implement and review Rust/Go production crypto, lead audit responses, prepare incident fixes, publish and represent externally, and teach/mentor engineers while scaling the crypto function.

Design, build, and maintain backend services and APIs using Ruby on Rails. Improve performance, scalability, reliability, and write well-tested production code. Collaborate with Product, Frontend, Data Engineering, and QA teams.

Design, build, and maintain backend services and APIs using Ruby on Rails. Ensure performance, scalability, reliability, and test coverage. Collaborate with Product, Frontend, Data Engineering, and QA to deliver production-quality code for web and mobile platforms.

Design, develop and support cloud applications using Cloud Foundry and Node.js. Apply object-oriented design and SQL (HANA). Work with APIs and eventing, use VS Code. Prefer SAP CAP/BTP and SAP experience. Collaborate in agile/SCRUM teams, communicate effectively, take ownership, and ensure high quality.

Volunteer Salesforce Architect to design and implement Health Cloud solutions, lead integrations (APIs, MuleSoft), configure Salesforce products (Service, Experience, Lightning), support users and BAs, produce technical documentation, and guide technology roadmaps and releases.

Volunteer TikTok Content Developer to create engaging short-form videos, appear on camera, collaborate with the brand designer, launch a fundraising campaign, attend weekly standups, and commit at least 4 hours weekly.

Volunteer research analyst to conduct market and competitor analysis, build market-fit reports and pitch deck content, support R&D research, develop research tools and coordinate research activities. Requires weekly standups and a 4+ hour weekly commitment.

Conduct rigorous business, financial, operational, market, and performance analyses; build sophisticated models; identify strategic insights; and translate findings into recommendations and executive-ready materials for senior leadership, the Board, and investors. Partner with the CSO and cross-functional leaders on ambiguous strategic questions, market sizing, growth scenarios, partnerships, and strategic planning.

Support design of user-centered interfaces across e-commerce, internal SaaS (WMS/OMS), and AI agent interactions. Create wireframes, prototypes, and high-fidelity mockups; conduct usability research; maintain a design system; apply WCAG accessibility practices; collaborate with product managers and frontend engineers for feasible, consistent designs.

Lead and implement full-stack architectural foundations across frontend, backend, and AI interfaces. Define API-first patterns, select standardized libraries and monorepo practices, produce system diagrams and documentation, enforce code quality and testing, and mentor developers to improve performance, security, and maintainability.

Support onboarding/offboarding, manage access and IT asset inventory, provide first-level support for internal SaaS and ticketing systems, monitor dashboards/logs, troubleshoot and escalate incidents, maintain documentation and runbooks, and assist AI/ML and engineering teams with tool access.

Build and operate Firecrawl’s legal operations function from scratch. Responsibilities include implementing contract, compliance, matter management, e-billing, and legal technology systems; managing contract intake and routing; overseeing outside counsel and vendors; tracking legal spend, contract volume, and turnaround times; supporting regulatory research; and automating repetitive workflows with technology and AI. The role partners closely with finance, sales, product, engineering, HR, security, and leadership.

Own and negotiate Firecrawl’s commercial agreements, including enterprise contracts, data licenses, vendor agreements, NDAs, and partnerships. Advise sales, business development, product, and engineering on data rights, privacy, security, intellectual property, indemnification, and liability. Build legal templates, playbooks, fallback positions, and approval processes while supporting compliance initiatives. Operate autonomously, escalate novel issues appropriately, and provide practical business-focused legal guidance in a fast-moving AI infrastructure company.

Coordinate and confirm appointments between clients and security professionals; answer calls, emails, and messages; manage scheduling software and availability; send reminders and follow-ups; maintain accurate records; protect confidential client information; provide professional customer service.

Evaluate AI model outputs on data science, statistics, machine learning, experimentation, and quantitative problems. Develop expert prompts, datasets, and reference solutions; identify statistical and methodological errors; and provide structured feedback to improve model performance. The role requires Python, machine learning, statistics, data analysis, experimentation, Pandas, and data modeling skills.

Analyze product and design challenges; explain design and frontend trade-offs; create design documents, usability reports, research summaries, RFCs, and ADRs; evaluate Figma-based design systems, accessibility, and frontend architecture; synthesize complex information; and provide structured expert feedback on project artifacts. The role supports AI training through high-quality analytical and explanatory work.

Build and maintain responsive, accessible front-end interfaces using React, React Native, HTML, CSS, and Shopify. Apply UX/UI principles, collaborate with designers and multidisciplinary teams, provide clear technical feedback, and independently deliver high-quality work on complex technology or AI-related projects. Contractors complete output-based tasks and must meet weekly minimum submission requirements, with an expected start within 24–48 hours of onboarding.

Supports Revenue Operations by improving sales processes, monitoring Salesforce adoption and data quality, troubleshooting sales technology issues, documenting procedures, supporting tool implementations, and building reports and dashboards. The role collaborates with sales leadership and revenue teams to improve workflows, surface pipeline insights, maintain CRM integrity, and enable sales representatives.

One-year AI research fellowship for B.Tech, M.Tech, and PhD students offering a monthly stipend, research project, industry internship, computing resources, and conference support. Fellows submit resume, SOP, research proposal, and recommendations.

Develop and manage affiliate partnerships for an AI-powered dialer targeting SMBs: recruit affiliates and influencers, design commission structures and materials, onboard and support partners, monitor performance, optimize ROI, and align affiliate efforts with overall marketing strategy while ensuring compliance.

Build and maintain Django-based web applications, design RESTful APIs, implement frontend features (HTML/CSS/JS), optimize performance and security, collaborate with cross-functional teams throughout the development lifecycle.