Top Tech Jobs & Startup Jobs in NYC, NY

Build and operate core backend APIs, integrations, and runtime infrastructure powering data, identity resolution, permissions, and workflow execution. Ensure reliability via observability, monitoring, failure handling, performance tuning, and operational tooling. Enable safe product and agent development and turn production feedback into platform improvements.

Develop and ship gameplay features, UI, and systems for the open-source Threadbare game using an existing codebase. Responsibilities include debugging, performance and stability improvements, testing, code reviews, planning, tooling, documentation, and collaboration with design and art. The role also involves reviewing learner code, providing written mentorship, supporting educational tooling, and participating in occasional community events.

Lead and manage multi-workstream projects for social impact clients, coaching teams, ensuring high-quality deliverables, developing strategies, coordinating stakeholders, and operationalizing project and performance management systems to drive results across diverse contexts.

Sell and enroll new gym members by developing leads, conducting tours, presenting membership options, completing paperwork, tracking sales, supporting corporate accounts, and providing excellent customer service.

Drive new business by prospecting and converting high-net-worth clients for residence and citizenship planning. Build referral partnerships, manage full sales cycle, meet revenue targets, maintain CRM, deliver consultative advice, and collaborate with global teams to ensure exceptional client service.

Own product areas and help shape Rentana’s roadmap, priorities, requirements, and execution. Translate customer feedback into product solutions, collaborate with engineering and design, coordinate releases from concept through general availability, conduct customer research, analyze product usage and market trends, and improve product development processes. The role focuses on B2B SaaS and data-heavy software in a fast-paced startup environment.

Support business development by researching organizations that retire large volumes of laptops, building target lists, drafting outreach, using email and LinkedIn to schedule meetings, and eventually running meetings to secure laptop procurement partnerships.

Lead full-stack projects from design through production, build AI-powered product features and internal agents, design scalable APIs and data systems, improve engineering productivity, mentor teammates, and own features across React, Next.js, Node.js, PostgreSQL, and AWS while using AI coding agents.

Work as a full‑time engineer intern shipping product changes, fixing bugs, and building features. Depending on group, implement agent orchestration, scale sandboxed experiment environments, build UI (desktop/cloud), design APIs and integrations, and help deploy tools connecting agents to customer data.

Drive full enterprise SaaS sales into carriers, MGAs, and reinsurers. Lead complex, multistage deals (3-9+ months), multi-thread stakeholders across underwriting, claims, actuarial, data, and IT. Translate neuro-symbolic AI into business metrics, run technical discovery and demos, support InfoSec and regulatory validation, and convert pilots into multi-year rollouts while co-selling with leadership and partners.