Top Tech Jobs & Startup Jobs in NYC, NY

As a Senior Software Engineer, you will lead the development of scalable backend systems, manage feature development lifecycles, and engage with stakeholders to translate mission needs into technical requirements while ensuring implementation meets criteria.

Design and implement end-to-end AI agent systems, collaborate with cross-functional teams, and oversee deployment and performance evaluation in production environments.

The Staff Software Engineer will lead implementations, mentor engineers, define technical strategies, and communicate with stakeholders while enhancing federal engineering capabilities.

Lead hands-on research and engineering across agentic ML: train and fine-tune models, design evaluation and observability, build production improvement loops and tooling, prototype agent architectures, partner cross-functionally to productionize research, and set technical direction while mentoring senior engineers and scientists.

Lead product strategy and roadmap for Scale's Cybersecurity portfolio, building training data, RL environments, agentic task suites, and evaluation products. Define capability maps, drive infrastructure for reproducible execution and verification, establish governance and responsible-disclosure processes, recruit practitioner contributors, and partner with ML researchers, customers, and GTM to launch and measure security capabilities end-to-end.

Own and scale Scale's coding AI product portfolio: set strategy and roadmap for benchmarks, training data, RL environments and evaluations; coordinate ML, engineering, operations and GTM; manage contributor networks, governance, contamination prevention, infrastructure, and customer engagements to convert benchmark credibility into revenue.

Source, qualify, and present partner candidates across the Physical AI ecosystem while owning partnerships CRM and internal materials. Lead outreach, discovery calls, intake triage, and support partner touchpoints. Maintain accurate pipeline records, draft communications, update partner materials, and support market research and process improvements to grow qualified pipeline and pilot conversions.

Lead architecture and technical direction for Scale's Generative AI Data Engine, embedding into high-priority Contributor teams to unblock delivery, overhaul platform infrastructure for LLM-native workloads, ensure scalability/reliability, mentor engineers, partner with product/leadership, and own large end-to-end backend, frontend, and ML system initiatives.

Manage end-to-end growth recruiting program: design and run top-of-funnel campaigns, optimize funnel conversion, own ATS (Greenhouse) and reporting, maintain hiring data integrity, lead recruiting operations improvements, and support hiring/onboarding from the San Francisco office.

Source, screen, and engage high-volume candidates to meet hiring goals; support candidates through the recruiting lifecycle; partner with recruiting and cross-functional leaders to design and execute sourcing strategies; manage evolving processes and represent the brand at occasional onsite recruiting events.